Submitted URL: http://practical.engineering/
Effective URL: https://practical.engineering/
Submission: On August 21 via manual from SE — Scanned from SE

Summary

This website contacted 7 IPs in 3 countries across 5 domains to perform 48 HTTP transactions. The main IP is 198.49.23.144, located in United States and belongs to SQUARESPACE, US. The main domain is practical.engineering.
TLS certificate: Issued by R11 on July 5th 2024. Valid for: 3 months.
This is the only time practical.engineering was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
4 198.49.23.144 53831 (SQUARESPACE)
6 184.24.77.144 20940 (AKAMAI-ASN1)
15 151.101.64.237 54113 (FASTLY)
2 151.101.0.238 54113 (FASTLY)
18 151.101.192.238 54113 (FASTLY)
2 104.22.75.115 13335 (CLOUDFLAR...)
1 184.24.77.154 20940 (AKAMAI-ASN1)
48 7
Apex Domain
Subdomains
Transfer
18 squarespace-cdn.com
images.squarespace-cdn.com — Cisco Umbrella Rank: 8177
365 KB
17 squarespace.com
assets.squarespace.com — Cisco Umbrella Rank: 9585
static1.squarespace.com — Cisco Umbrella Rank: 9497
1 MB
7 typekit.net
use.typekit.net — Cisco Umbrella Rank: 1178
p.typekit.net — Cisco Umbrella Rank: 1499
114 KB
4 practical.engineering
practical.engineering
24 KB
2 sender.net
cdn.sender.net — Cisco Umbrella Rank: 236691
49 KB
48 5
Domain Requested by
18 images.squarespace-cdn.com practical.engineering
15 assets.squarespace.com practical.engineering
static1.squarespace.com
assets.squarespace.com
6 use.typekit.net practical.engineering
4 practical.engineering assets.squarespace.com
2 cdn.sender.net practical.engineering
cdn.sender.net
2 static1.squarespace.com practical.engineering
1 p.typekit.net practical.engineering
48 7

This site contains links to these domains. Also see Links.

Domain
store.practical.engineering
www.youtube.com
twitter.com
instagram.com
Subject Issuer Validity Valid
practical.engineering
R11
2024-07-05 -
2024-10-03
3 months crt.sh
use.typekit.net
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2024-02-01 -
2025-03-03
a year crt.sh
*.squarespace.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2024-02-09 -
2025-02-28
a year crt.sh
*.squarespace-cdn.com
R11
2024-07-29 -
2024-10-27
3 months crt.sh
cdn.sender.net
Cloudflare Inc ECC CA-3
2023-12-19 -
2024-12-18
a year crt.sh

This page contains 1 frames:

Primary Page: https://practical.engineering/
Frame ID: 5769F4B9A4C70453EE1EA6A28646822B
Requests: 48 HTTP requests in this frame

Screenshot

Page Title

Practical Engineering

Page URL History Show full URLs

  1. http://practical.engineering/ HTTP 307
    https://practical.engineering/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <!-- This is Squarespace\. -->

Overall confidence: 100%
Detected patterns
  • assets\.squarespace\.\w+/universal/scripts-compressed/commerce-\w+-min\.[\w+\-]+\.js

Page Statistics

48
Requests

100 %
HTTPS

0 %
IPv6

5
Domains

7
Subdomains

7
IPs

3
Countries

1682 kB
Transfer

6358 kB
Size

3
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. http://practical.engineering/ HTTP 307
    https://practical.engineering/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

48 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
practical.engineering/
Redirect Chain
  • http://practical.engineering/
  • https://practical.engineering/
87 KB
16 KB
Document
General
Full URL
https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.144 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
d40d70950734e70117c5a927a8b9b7dfe6082b6f8a0c5aa6b5cec6f941e2b1f8
Security Headers
Name Value
Strict-Transport-Security max-age=15552000
X-Content-Type-Options nosniff

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

accept-ranges
bytes
age
79175
content-encoding
gzip
content-length
16127
content-type
text/html;charset=utf-8
date
Tue, 20 Aug 2024 14:26:03 GMT
etag
W/"da6564b85777851a6f46d513ff447cf7"
expires
Thu, 01 Jan 1970 00:00:00 GMT
server
Squarespace
strict-transport-security
max-age=15552000
vary
Accept-Encoding
x-content-type-options
nosniff
x-contextid
2LL20zbc/7fa2Txus

Redirect headers

Location
https://practical.engineering/
Non-Authoritative-Reason
HttpsUpgrades
SdDfxJ4Sm7R3w6atwJ6STARi0o-LyUm6_vQT4LlD67qfeTbIfFHN4UJLFRbh52jhWD9ujAwDFe9XZQsKw2IawemcFQsKZQjDwy7mMkG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0Za4yZYql-e8CdeyziWF8O...
use.typekit.net/ik/
17 KB
7 KB
Script
General
Full URL
https://use.typekit.net/ik/SdDfxJ4Sm7R3w6atwJ6STARi0o-LyUm6_vQT4LlD67qfeTbIfFHN4UJLFRbh52jhWD9ujAwDFe9XZQsKw2IawemcFQsKZQjDwy7mMkG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0Za4yZYql-e8CdeyziWF8O1FUiABkZWF3jAF8OcFzdP37O1FUiABkZWF3jAF8ShFGZAsude80ZkoRdhXCjAFu-WsoShFGZAsude80ZkoRdhXCjAFu-WsoShFGZAsude80Zko0ZWbCjWw0dA9CZa4yZYql-e8CdeyziWF8O1FUiABkZWF3jAF8OcFzdPUCdhFydeyzSabCSY4yjasTjhBCOcm0Zh80ZAmk-Ao1OYFUiABkZWF3jAF8ShFGZAsude80ZkoRdhXCiaiaOcBRiA8XpWFR-emqiAUTdcS0jhNlOYiaikoyjamTiY8Djhy8ZYmC-Ao1Oco8ifUaiaS0jWw0dA9CiaiaOcikjAsoOAyTdeUGdamDZPoDSWmyScmDSeBRZPoRdhXCiaiaO1gkjAFX-AFydfo8dciTdcm8Sc80ZkUaiaS0SaBujW48SagyjhmDjhy8ZYmC-Ao1OcFzdPJwSY4zpe8ljPu0daZyJ68ciWsuScIlSYb7fbKzMsMMeMb6MKG4fJCgIMMjgkMfH6qJCMIbMg65JMJ7fbKwMsMMegI6MKG4fJBmIMIjgkMfqMYm_OKFg6.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
48e2a04346cd74fe96d0e65fa7a27c7169d9fbcaa34a0578ac11acaf93b603bf
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains;

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubDomains;
content-encoding
gzip
date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
vary
Accept-Encoding
content-type
text/javascript;charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=604800
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
6795
modern.js
assets.squarespace.com/@sqs/polyfiller/1.6/
115 KB
42 KB
Script
General
Full URL
https://assets.squarespace.com/@sqs/polyfiller/1.6/modern.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
54e832663426c696b1f603379026e5e15720e8c812bbbc60d63aa2ad8a479f75

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Thu, 22 Aug 2024 15:49:35 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
gzip
via
1.1 varnish, 1.1 varnish
age
3438694
x-cache
HIT, HIT
content-length
42447
x-served-by
cache-iad-kcgs7200042-IAD, cache-fra-eddf8230105-FRA
last-modified
Mon, 31 Oct 2022 21:19:57 GMT
server
UploadServer
x-timer
S1724243351.078890,VS0,VE0
etag
"fe0d53a94823df972dbf107bf190771a"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
78971, 121042
extract-css-runtime-34867dc341043e56895f-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
46 KB
16 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-34867dc341043e56895f-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
29c208314d9de6f6eff5cb45a9d5f431eb589d4ee40ba8c801767a0fc5e05470

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Wed, 20 Aug 2025 13:57:21 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
81109
x-cache
HIT, HIT
content-length
16432
x-served-by
cache-iad-kcgs7200053-IAD, cache-fra-eddf8230105-FRA
last-modified
Tue, 20 Aug 2024 13:46:30 GMT
server
UploadServer
x-timer
S1724243351.079464,VS0,VE0
etag
"6f26b142b578db412a331afcc7d2f79b"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
9, 144
extract-css-moment-js-vendor-dfbb72c875564c27a00c-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
1 MB
92 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/extract-css-moment-js-vendor-dfbb72c875564c27a00c-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
fb286170686623f90ac5de27ded17a59c48d81ed47ba670f5d39083f932f650b

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Sat, 26 Jul 2025 18:41:15 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
2224076
x-cache
HIT, HIT
content-length
94175
x-served-by
cache-iad-kcgs7200056-IAD, cache-fra-eddf8230105-FRA
last-modified
Fri, 05 Jul 2024 20:02:36 GMT
server
UploadServer
x-timer
S1724243351.079915,VS0,VE0
etag
"5e743e74d2dd5011777b02b8062f49f8"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
23, 83901
cldr-resource-pack-15305921bb94c505cd92-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
89 KB
15 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/cldr-resource-pack-15305921bb94c505cd92-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
90b8f146c7c76f1082649aa206d0f45502a5e4e9112a42e1215896a847166922

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Sat, 07 Jun 2025 19:43:02 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
2411107
x-cache
HIT, HIT
content-length
15295
x-served-by
cache-iad-kiad7000108-IAD, cache-fra-eddf8230105-FRA
last-modified
Fri, 07 Jun 2024 19:28:30 GMT
server
UploadServer
x-timer
S1724243351.079662,VS0,VE0
etag
"6c4854079cb4028148c3de5470b61218"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
18939, 84761
common-vendors-stable-0f51b06fac4ba1f7c845-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
240 KB
69 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/common-vendors-stable-0f51b06fac4ba1f7c845-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
ac50c5fde5be3a1dfafd0065c3f8d98ee145c040b6050f2543bc1b8c8801f768

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Wed, 18 Jun 2025 15:18:32 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
2160384
x-cache
HIT, HIT
content-length
70760
x-served-by
cache-iad-kcgs7200034-IAD, cache-fra-eddf8230105-FRA
last-modified
Mon, 17 Jun 2024 21:20:01 GMT
server
UploadServer
x-timer
S1724243351.078785,VS0,VE0
etag
"850c2ab18f51fb4579b453ef89ce47fd"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
4563, 82681
common-vendors-a36f489e8544066f744c-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
676 KB
164 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/common-vendors-a36f489e8544066f744c-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
3ff27329674d1e929f70b415051a7702c15c395f60f5a9ec3591426e9b464632

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 14:23:50 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
165920
x-cache
HIT, HIT
content-length
167466
x-served-by
cache-iad-kiad7000024-IAD, cache-fra-eddf8230105-FRA
last-modified
Thu, 15 Aug 2024 21:37:14 GMT
server
UploadServer
x-timer
S1724243351.079657,VS0,VE0
etag
"516fa7358a8e56af21b5be52cfd156bc"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
38, 3466
common-d7feb51318882d795268-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
2 MB
380 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/common-d7feb51318882d795268-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
67f677b080e5b1a3bc8c8739d51067be4a936e180c932a38c0c88f6a0bd7a923

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 19:55:06 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
146045
x-cache
HIT, HIT
content-length
388457
x-served-by
cache-iad-kiad7000154-IAD, cache-fra-eddf8230105-FRA
last-modified
Mon, 19 Aug 2024 18:50:55 GMT
server
UploadServer
x-timer
S1724243351.079992,VS0,VE0
etag
"ea9095e17887734af6469fae01ed47ae"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
20, 246
commerce-45bea98690e193c64a59-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
996 KB
242 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/commerce-45bea98690e193c64a59-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
64dfc3b332cc094e801c0d32923a0d55caee76fd1001a6a31128da70e0b99fcb

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 19:55:06 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
146044
x-cache
HIT, HIT
content-length
247661
x-served-by
cache-iad-kcgs7200096-IAD, cache-fra-eddf8230105-FRA
last-modified
Mon, 19 Aug 2024 18:50:19 GMT
server
UploadServer
x-timer
S1724243351.079329,VS0,VE0
etag
"52f52f5abb3eda48d76216fe2fc21867"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
22, 80
commerce-69c9d442394ad622f3da-min.en-US.css
assets.squarespace.com/universal/styles-compressed/
18 KB
7 KB
Stylesheet
General
Full URL
https://assets.squarespace.com/universal/styles-compressed/commerce-69c9d442394ad622f3da-min.en-US.css
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
66a9c7db97bb22f9b78b7e7e98a875b121bdcd77ec1ae5c16ccf409b21f7ce7e

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Thu, 07 Aug 2025 03:32:59 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
gzip
via
1.1 varnish
age
481447
x-cache
HIT
fastly-restarts
1
content-length
6968
x-served-by
cache-fra-eddf8230035-FRA
last-modified
Thu, 01 Aug 2024 17:11:37 GMT
server
UploadServer
x-timer
S1724243351.081005,VS0,VE0
etag
"f44297501385cbefd054d26278059715"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
7702
performance-c4de798a291d3c525554-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
40 KB
12 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/performance-c4de798a291d3c525554-min.en-US.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
47924fd7afbc6c0fdbe3692c16c4fc969fa546f3fb0116e574cf40a65954d9f1

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 14:23:57 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
165913
x-cache
HIT, HIT
content-length
11825
x-served-by
cache-iad-kjyo7100067-IAD, cache-fra-eddf8230105-FRA
last-modified
Thu, 15 Aug 2024 21:37:18 GMT
server
UploadServer
x-timer
S1724243351.234453,VS0,VE0
etag
"7c37ee4726edab7ee29ad2446145acb7"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
33, 3056
site.css
static1.squarespace.com/static/sitecss/55ac34e4e4b0170ef54be632/60/4f6a1392e4b07090d46e7ec9/55ac34e4e4b0170ef54be63b/1602/
522 KB
59 KB
Stylesheet
General
Full URL
https://static1.squarespace.com/static/sitecss/55ac34e4e4b0170ef54be632/60/4f6a1392e4b07090d46e7ec9/55ac34e4e4b0170ef54be63b/1602/site.css
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.0.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
Squarespace /
Resource Hash
f610bb779a9b526a1076963768e8404b170633e6196086d66c33b506ec6eb8f2
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
gzip
x-content-type-options
nosniff
via
1.1 varnish, 1.1 varnish
age
760227
x-cache
HIT, HIT
x-contextid
9PwX0uMx/0ZKxTTD5
content-length
59950
x-served-by
cache-dfw-kdal2120081-DFW, cache-fra-eddf8230079-FRA
pragma
cache
server
Squarespace
x-timer
S1724243351.095927,VS0,VE1
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, max-age=94608000
accept-ranges
bytes
timing-allow-origin
*
x-cache-hits
202, 1
logo-full-color-rgb-593px%4072ppi.png
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/34f522ce-48cd-45ae-abfa-452241f76b54/
10 KB
10 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/34f522ce-48cd-45ae-abfa-452241f76b54/logo-full-color-rgb-593px%4072ppi.png?format=1500w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
0bfdefb9f18dd514ff366f2da5d50fab1d1e3219ac763be4ea00619b5a5a5503

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1669271
x-cache
HIT, HIT
content-length
9773
x-served-by
cache-iad-kcgs7200020-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243351.095843,VS0,VE1
etag
CO68sOXHz/QCEAE=
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=604800,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
4, 1
/
static1.squarespace.com/static/ta/4f6798afe4b097349e410d49/1602/scripts/combo/
409 B
622 B
Script
General
Full URL
https://static1.squarespace.com/static/ta/4f6798afe4b097349e410d49/1602/scripts/combo/?site.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.0.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
Squarespace /
Resource Hash
4a2c81d61546843a787489a4133b7c4cdd2b43883370024696c81c7022da7a0b
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
gzip
x-content-type-options
nosniff
via
1.1 varnish, 1.1 varnish
age
613275
x-cache
HIT, HIT
x-contextid
OhCSCS7K/QW5QXFaY
content-length
256
x-served-by
cache-dfw-kdfw8210129-DFW, cache-fra-eddf8230079-FRA
pragma
cache
server
Squarespace
x-timer
S1724243351.095853,VS0,VE0
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
cache-control
public, max-age=94608000
accept-ranges
bytes
timing-allow-origin
*
x-cache-hits
4490, 46
universal.js
cdn.sender.net/accounts_resources/
146 KB
46 KB
Script
General
Full URL
https://cdn.sender.net/accounts_resources/universal.js
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
104.22.75.115 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
859a642c378048165e61bd2eac5b7353a67d4dcf6fd5d20dfdc5ea0b35388e3a
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

Date
Wed, 21 Aug 2024 12:29:11 GMT
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
x-content-type-options
nosniff
CF-Cache-Status
HIT
Content-Encoding
br
Age
1083
Transfer-Encoding
chunked
Connection
keep-alive
alt-svc
h3=":443"; ma=86400
x-xss-protection
1; mode=block
referrer-policy
same-origin
Last-Modified
Tue, 20 Aug 2024 12:02:28 GMT
Server
cloudflare
ETag
W/"e51770d99b6d7c20c6776807bf071546"
Vary
Accept-Encoding
x-frame-options
SAMEORIGIN
Content-Type
text/javascript
Cache-Control
max-age=3600
CF-RAY
8b6aa092ccb79972-FRA
play-button.png
assets.squarespace.com/universal/images-v6/damask/
1 KB
1 KB
Image
General
Full URL
https://assets.squarespace.com/universal/images-v6/damask/play-button.png
Requested by
Host: static1.squarespace.com
URL: https://static1.squarespace.com/static/sitecss/55ac34e4e4b0170ef54be632/60/4f6a1392e4b07090d46e7ec9/55ac34e4e4b0170ef54be63b/1602/site.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
c8e214c8a689800e4083b385274bb0dc12ced5d3e08ec4c4e93da64a56b671a3

Request headers

Referer
https://static1.squarespace.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 01 Oct 2024 12:54:01 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 varnish, 1.1 varnish
age
2178494
x-cache
HIT, HIT
content-length
1219
x-served-by
cache-iad-kiad7000075-IAD, cache-fra-eddf8230035-FRA
last-modified
Wed, 17 Apr 2019 22:28:01 GMT
server
UploadServer
x-timer
S1724243351.469512,VS0,VE0
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
80, 720
l
use.typekit.net/af/efe4a5/00000000000000007735e609/30/
16 KB
16 KB
Font
General
Full URL
https://use.typekit.net/af/efe4a5/00000000000000007735e609/30/l?subset_id=2&fvd=n4&v=3
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
b4096925f34c85d0c0e934ad77c44165dcd66fecc354c153784d246f00911da5

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
etag
"e7ff55a2dbd9793a0025734c0419ed962aadab55"
content-type
application/font-woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
16560
l
use.typekit.net/af/309dfe/000000000000000000010091/27/
39 KB
40 KB
Font
General
Full URL
https://use.typekit.net/af/309dfe/000000000000000000010091/27/l?subset_id=2&fvd=n7&v=3
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
d76f8e42213513ab33c721c98a652b012ee11ff86efc7661ca19a344c4c117a8

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
etag
"78f589bb61056c7dc2c42601e2fd59aa96941141"
content-type
application/font-woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
40404
l
use.typekit.net/af/2555e1/00000000000000007735e603/30/
16 KB
17 KB
Font
General
Full URL
https://use.typekit.net/af/2555e1/00000000000000007735e603/30/l?subset_id=2&fvd=n7&v=3
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
81a6361b1f6ff5f9f6ca05b773fb993d7b7b3f668635ccba4379fa3ecb9a7e3e

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
etag
"d6bfc4d27afeb61a1128d9c149ee5ed369aa27c3"
content-type
application/font-woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
16832
2068-316028fb12ab7a3c9d98-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
74 KB
17 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/2068-316028fb12ab7a3c9d98-min.en-US.js
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-34867dc341043e56895f-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
af97611c68cc111bfd629e8ce414335c71a7561f032263d918a69d1b18726acf

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 14:23:51 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
165920
x-cache
HIT, HIT
content-length
17271
x-served-by
cache-iad-kjyo7100033-IAD, cache-fra-eddf8230035-FRA
last-modified
Fri, 16 Aug 2024 23:31:08 GMT
server
UploadServer
x-timer
S1724243351.486442,VS0,VE0
etag
"4d318b95c4994e3945247b7ea78900e6"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
44, 3276
2775-3d8fd0a55ae009e1fd7f-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
12 KB
4 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/2775-3d8fd0a55ae009e1fd7f-min.en-US.js
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-34867dc341043e56895f-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
419f3bb33710fdb4024a16617884b1c7c14641aeca4a89fadbb34374c5dd7d29

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 14:23:51 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
165920
x-cache
HIT, HIT
content-length
3426
x-served-by
cache-iad-kjyo7100069-IAD, cache-fra-eddf8230035-FRA
last-modified
Thu, 15 Aug 2024 21:35:49 GMT
server
UploadServer
x-timer
S1724243351.486569,VS0,VE0
etag
"8b8c6eb532804f309b305108245a067c"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
44, 3255
f89d59e4672950e95fab-min.en-US.css
assets.squarespace.com/universal/styles-compressed/
14 KB
2 KB
Stylesheet
General
Full URL
https://assets.squarespace.com/universal/styles-compressed/f89d59e4672950e95fab-min.en-US.css
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-34867dc341043e56895f-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
c47d2c1aa5e1f3c41f2c400371004367ca5e824d2c7d563d467eafd3a0b948dd

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 05 Aug 2025 13:44:08 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
1377904
x-cache
HIT, HIT
content-length
1591
x-served-by
cache-iad-kcgs7200033-IAD, cache-fra-eddf8230035-FRA
last-modified
Thu, 01 Aug 2024 17:11:29 GMT
server
UploadServer
x-timer
S1724243351.486930,VS0,VE0
etag
"136953ca9edf4da12355bff3afdd96e4"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
24, 18419
async-gdpr-cookie-banner-3ff7990f2a542e27d421-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/
26 KB
7 KB
Script
General
Full URL
https://assets.squarespace.com/universal/scripts-compressed/async-gdpr-cookie-banner-3ff7990f2a542e27d421-min.en-US.js
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-34867dc341043e56895f-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.64.237 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
25a321d19a2071272e11df47ce83e9cc7d217e9a3e9051ee8c500bd65bb95b33

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

expires
Tue, 19 Aug 2025 14:23:51 GMT
date
Wed, 21 Aug 2024 12:29:11 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
165920
x-cache
HIT, HIT
content-length
7353
x-served-by
cache-iad-kiad7000092-IAD, cache-fra-eddf8230035-FRA
last-modified
Mon, 19 Aug 2024 14:00:34 GMT
server
UploadServer
x-timer
S1724243351.492268,VS0,VE0
etag
"178c2fdfadf3e9f9c2aa72244db4a0d1"
vary
Accept-Encoding
access-control-allow-methods
GET, OPTIONS
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-cache-hits
44, 3232
RecordHit
practical.engineering/api/census/
17 B
111 B
XHR
General
Full URL
https://practical.engineering/api/census/RecordHit
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/common-vendors-a36f489e8544066f744c-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.144 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
f1ea07a1e51a389c8de07120ae5c2e432e9dd8f4fbd6f92489f185b0523a3fd4
Security Headers
Name Value
Strict-Transport-Security max-age=15552000
X-Content-Type-Options nosniff

Request headers

Accept
application/json, text/plain, */*
Referer
https://practical.engineering/
X-CSRF-Token
BfsUMy5yFvUKNzM1ODYwMDdhNTYyZjllYTNhMzkwODQ4N2I3M2Yz
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Content-Type
application/x-www-form-urlencoded; charset=UTF-8

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
strict-transport-security
max-age=15552000
x-content-type-options
nosniff
server
Squarespace
age
0
content-type
application/json;charset=utf-8
x-contextid
Wm8eVzRL/Vf2wqZQ8
accept-ranges
bytes
content-length
17
form-render
practical.engineering/api/census/
17 B
61 B
XHR
General
Full URL
https://practical.engineering/api/census/form-render
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/common-vendors-a36f489e8544066f744c-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.144 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
f1ea07a1e51a389c8de07120ae5c2e432e9dd8f4fbd6f92489f185b0523a3fd4
Security Headers
Name Value
Strict-Transport-Security max-age=15552000
X-Content-Type-Options nosniff

Request headers

Accept
application/json, text/plain, */*
Referer
https://practical.engineering/
X-CSRF-Token
BfsUMy5yFvUKNzM1ODYwMDdhNTYyZjllYTNhMzkwODQ4N2I3M2Yz
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Content-Type
application/json

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
strict-transport-security
max-age=15552000
x-content-type-options
nosniff
server
Squarespace
age
0
content-type
application/json;charset=utf-8
x-contextid
Wm8eVzRL/yCVvA9hy
accept-ranges
bytes
content-length
17
GetWidgetRendering
practical.engineering/api/widget/
8 KB
8 KB
XHR
General
Full URL
https://practical.engineering/api/widget/GetWidgetRendering
Requested by
Host: assets.squarespace.com
URL: https://assets.squarespace.com/universal/scripts-compressed/common-vendors-a36f489e8544066f744c-min.en-US.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.144 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
66dc8555fb467d763392a7b44abd240b92d152bbe0636878596541a93b621b6c
Security Headers
Name Value
Strict-Transport-Security max-age=15552000
X-Content-Type-Options nosniff

Request headers

Accept
application/json, text/plain, */*
Referer
https://practical.engineering/
X-CSRF-Token
BfsUMy5yFvUKNzM1ODYwMDdhNTYyZjllYTNhMzkwODQ4N2I3M2Yz
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Content-Type
application/x-www-form-urlencoded

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
strict-transport-security
max-age=15552000
x-content-type-options
nosniff
server
Squarespace
age
0
content-type
application/json;charset=utf-8
x-contextid
Wm8eVzRL/MYLcVpyT
accept-ranges
bytes
l
use.typekit.net/af/3322cc/00000000000000007735e616/30/
17 KB
17 KB
Font
General
Full URL
https://use.typekit.net/af/3322cc/00000000000000007735e616/30/l?subset_id=2&fvd=i4&v=3
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
fdcb74f626ef8f1059c0e3bd503017b8fdda4a54afcc26a4da734f5fd5c7a87a

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
etag
"31a7aafb713ac5501e62f6db8e298b8d73b421d2"
content-type
application/font-woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
17212
l
use.typekit.net/af/4de20a/00000000000000007735e604/30/
17 KB
17 KB
Font
General
Full URL
https://use.typekit.net/af/4de20a/00000000000000007735e604/30/l?subset_id=2&fvd=i7&v=3
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.144 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-144.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
5aa4d710eb97e7dc65d20f8a3b814646481b69ad60a513bfd95fa8bdcdc71eb6

Request headers

Referer
https://practical.engineering/
Origin
https://practical.engineering
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
server
nginx
etag
"a7173d64afba2671b7fdf3dc01ded3412e73bdc3"
content-type
application/font-woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
content-length
17284
PREN_E063_Interchanges+no+logo.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1724066821998-A0GVSQRF7L6WIISRINH0/
17 KB
17 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1724066821998-A0GVSQRF7L6WIISRINH0/PREN_E063_Interchanges+no+logo.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
ef9affe4f2c1294b870cd3fad67cfdf42e632906c0dd17375f32506318c599cc

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
176524
x-cache
HIT, HIT
content-length
17074
x-served-by
cache-iad-kcgs7200170-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.547454,VS0,VE1
etag
COrJz7T5gIgDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
4, 0
059+-+How+French+Drains+Work+Thumbnail.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1722957476602-EH9IQJJVR3IYVIOZNQS6/
14 KB
14 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1722957476602-EH9IQJJVR3IYVIOZNQS6/059+-+How+French+Drains+Work+Thumbnail.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
c50787c35bb2ecff880a269bd9c90235b20666ba31203b7ce5bd780ee8ce1b84

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
675721
x-cache
HIT, HIT
content-length
14378
x-served-by
cache-iad-kiad7000155-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.570656,VS0,VE2
etag
CJivy+PU4IcDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
10, 0
2afaa495621177.json
cdn.sender.net/accounts_resources/base/
4 KB
2 KB
Fetch
General
Full URL
https://cdn.sender.net/accounts_resources/base/2afaa495621177.json
Requested by
Host: cdn.sender.net
URL: https://cdn.sender.net/accounts_resources/universal.js
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_128_GCM
Server
104.22.75.115 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
9f033f677807de78af533d35c1331f446b27a3de2ff4e03bead54d56ac6797b9
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

Date
Wed, 21 Aug 2024 12:29:11 GMT
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
x-content-type-options
nosniff
CF-Cache-Status
DYNAMIC
Content-Encoding
br
Transfer-Encoding
chunked
Connection
keep-alive
alt-svc
h3=":443"; ma=86400
x-xss-protection
1; mode=block
referrer-policy
same-origin
Last-Modified
Thu, 01 Feb 2024 17:31:55 GMT
Server
cloudflare
ETag
W/"0e69f6824d7f935c8c3d216b48ab7bc4"
Vary
Origin, Accept-Encoding
x-frame-options
SAMEORIGIN
Content-Type
application/json
Access-Control-Allow-Origin
*
CF-RAY
8b6aa0937baf65a3-FRA
New+London+thumbnail1.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1721085027463-EII8I20D3U8KQNMYMAQD/
23 KB
23 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1721085027463-EII8I20D3U8KQNMYMAQD/New+London+thumbnail1.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
3e2eedac0e2c4cbdd8cf152fd4ea5688e9a2f34a9c04bee4f44629b69c42b80c

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
454926
x-cache
HIT, HIT
content-length
23218
x-served-by
cache-iad-kiad7000023-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.575812,VS0,VE2
etag
CO6km66VqocDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
7, 0
057---Why-Don%27t-Bridges-Sink_2d.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1719932251630-YAOFTP9UH1TB9UYNHS64/
13 KB
13 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1719932251630-YAOFTP9UH1TB9UYNHS64/057---Why-Don%27t-Bridges-Sink_2d.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
ce3bc89a25f11e489d00757c832d665ad88ed5bc59d9c66cd88f1b22434c70b4

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
76678
x-cache
HIT, HIT
content-length
13382
x-served-by
cache-iad-kcgs7200172-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.581514,VS0,VE1
etag
CIaE9PfOiIcDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
21, 0
Fern+Hollow+Thumbnail+4.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1718724469195-YPZP3AFJU49FRAOCR1P0/
25 KB
25 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1718724469195-YPZP3AFJU49FRAOCR1P0/Fern+Hollow+Thumbnail+4.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
2f98f57b9a7842cb5c6551be9ba27ae435b00162c388f7d006c0f58a68310e90

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1319116
x-cache
HIT, HIT
content-length
25873
x-served-by
cache-iad-kcgs7200074-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.592877,VS0,VE1
etag
CIiFt8y75YYDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
39, 0
Power+Factor+Thumbnail+%28no+text%29.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1717508861984-PA059CNRYFN4VCEM52OZ/
18 KB
18 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1717508861984-PA059CNRYFN4VCEM52OZ/Power+Factor+Thumbnail+%28no+text%29.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
ac51466322cae844dc5bdb0f947d5d4bff0398a665fad80851e1dc28809bb406

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
2548338
x-cache
HIT, HIT
content-length
18303
x-served-by
cache-iad-kiad7000120-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.603043,VS0,VE1
etag
CKTSz42LwoYDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
8, 0
Every+Bridge+Thumbnail3.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1716301755642-BL24K0GFC39RAD4NKLO2/
21 KB
21 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1716301755642-BL24K0GFC39RAD4NKLO2/Every+Bridge+Thumbnail3.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
ceb8a5b8c84191f8fda8f423fbeb857e87bb0cf5e61d1e08da5aa9d5be695fb9

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
685061
x-cache
HIT, HIT
content-length
21098
x-served-by
cache-iad-kcgs7200072-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.617657,VS0,VE2
etag
CNHhuqT6noYDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
62, 0
Baltimore+Bridge+Thumbnail.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1715096011291-KYWZV1S5ZSGSBWENLBX9/
14 KB
14 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1715096011291-KYWZV1S5ZSGSBWENLBX9/Baltimore+Bridge+Thumbnail.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
175ce3af2f29e935d0d5c4aa7f7568f4de8f92f64df262b4cdcaa929cd9c6dbd

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1231734
x-cache
HIT, HIT
content-length
14417
x-served-by
cache-iad-kiad7000150-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.641824,VS0,VE1
etag
CKOX5MTu+4UDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
16, 0
058+-+Inverters+A.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1713237141162-RATVVGYI8EHMNTXPEVNY/
15 KB
15 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1713237141162-RATVVGYI8EHMNTXPEVNY/058+-+Inverters+A.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
a4bfff927d54a8c3d0adffb5c42957d2792b96b7506892baab2b6f771a23de78

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
699802
x-cache
HIT, HIT
content-length
15462
x-served-by
cache-iad-kcgs7200104-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.653519,VS0,VE1
etag
CMLsrdrhxYUDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
19, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1662486732191-9DBSW41RG6IP7UAAKVJ5/
17 KB
17 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1662486732191-9DBSW41RG6IP7UAAKVJ5/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
24c3d99f8f350b19e4aa17c1fbe7de3e32d94c8158c21cd62fc8e327f2e8d15a

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
2577003
x-cache
HIT, HIT
content-length
17383
x-served-by
cache-iad-kcgs7200116-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691145,VS0,VE1
etag
CNuAutndgPoCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=604800,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
18, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1661972417434-ZNLKHOYO0PU1A7WPWALF/
23 KB
23 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1661972417434-ZNLKHOYO0PU1A7WPWALF/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
6f3af1f95f8e0aab075fead82ecb761daa543910464e504c753d198e5859071f

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1961022
x-cache
HIT, HIT
content-length
23173
x-served-by
cache-iad-kjyo7100109-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691117,VS0,VE1
etag
CN7DkN3h8fkCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
184, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1661359551163-QVNTCP3NBHIX9F9ARVC1/
52 KB
52 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1661359551163-QVNTCP3NBHIX9F9ARVC1/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
b68abcf038dc23a70d6e0598176450bb7eee9d442a1beba137cbcf2e049a2f7a

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
533765
x-cache
HIT, HIT
content-length
52835
x-served-by
cache-iad-kjyo7100115-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691260,VS0,VE1
etag
COGU/M/23/kCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=604800,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
2, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1660662032420-30XFU8BPW0WJNJRCF2EQ/
28 KB
28 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1660662032420-30XFU8BPW0WJNJRCF2EQ/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
db4fecc7aa84bca8c74bf3307fefe7a0175f038326aaccb6eb15319d1a250bfe

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
2422562
x-cache
HIT, HIT
content-length
28529
x-served-by
cache-iad-kiad7000128-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691076,VS0,VE3
etag
CJae5ZTQy/kCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
23, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1660060744697-MUYWN6RKPC9ZTPR20MCZ/
34 KB
34 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1660060744697-MUYWN6RKPC9ZTPR20MCZ/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
fb30374367b589c3893a858ec0f19d2484556f44958c6a99007ba8243824b6dc

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1227062
x-cache
HIT, HIT
content-length
34578
x-served-by
cache-iad-kjyo7100130-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691019,VS0,VE1
etag
COG35piQuvkCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
185, 0
image-asset.jpeg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1659453930710-GI17Z987WULX2PESXYUL/
10 KB
10 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1659453930710-GI17Z987WULX2PESXYUL/image-asset.jpeg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
34c6ef337deba101e6d16a67de09160c271a29475e38c5108b87c4e315347c40

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
699802
x-cache
HIT, HIT
content-length
10361
x-served-by
cache-iad-kcgs7200032-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.691023,VS0,VE1
etag
CKv8/tC7qPkCEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
130, 0
054+-+How+Fish+Ladders+Work+2a+%281%29.jpg
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1712067258889-539WVDS6N3V1R9JFTP4U/
23 KB
23 KB
Image
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/1712067258889-539WVDS6N3V1R9JFTP4U/054+-+How+Fish+Ladders+Work+2a+%281%29.jpg?format=300w
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
269885b038db87d5a8e76db49389264e3dc93f63db92405fffffdda85cb42090

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
1296253
x-cache
HIT, HIT
content-length
23452
x-served-by
cache-iad-kiad7000042-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.697725,VS0,VE1
etag
CIu8hsfbo4UDEAE=
vary
Accept-Encoding
content-type
image/jpeg
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=31536000,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
47, 0
p.gif
p.typekit.net/
35 B
205 B
Image
General
Full URL
https://p.typekit.net/p.gif?s=2&k=646866_55ac34e4e4b0170ef54be632&ht=tk&h=practical.engineering&f=175.139.176.140.10881&a=646866&js=1.21.0&app=typekit&e=js&_=1724243351693
Requested by
Host: practical.engineering
URL: https://practical.engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
184.24.77.154 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
a184-24-77-154.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
9b9265c69a5cc295d1ab0d04e0273b3677db1a6216ce2ccf4efc8c277ed84b39

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 12:29:11 GMT
last-modified
Fri, 28 Jul 2023 12:40:18 GMT
server
nginx
etag
"64c3b732-23"
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=604800
cross-origin-resource-policy
cross-origin
accept-ranges
bytes
content-length
35
favicon.ico
images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/72d5163f-0c5a-490b-b568-f1619e6b10c0/
7 KB
7 KB
Other
General
Full URL
https://images.squarespace-cdn.com/content/v1/55ac34e4e4b0170ef54be632/72d5163f-0c5a-490b-b568-f1619e6b10c0/favicon.ico?format=100w
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 San Francisco, United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
eebdc364e4e1ea1e05202eff21c8993e901583f93b537984d8fbf338b6e087ba

Request headers

Referer
https://practical.engineering/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Response headers

tracepoint
Fastly
date
Wed, 21 Aug 2024 12:29:11 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
703957
x-cache
MISS, HIT
content-length
7303
x-served-by
cache-iad-kjyo7100076-IAD, cache-fra-eddf8230126-FRA
x-timer
S1724243352.804872,VS0,VE2
etag
CNmcnP3Hz/QCEAE=
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
access-control-expose-headers
Content-Length, Timing-Allow-Origin
cache-control
max-age=604800,s-maxage=31536000
accept-ranges
bytes
timing-allow-origin
*
x-sqsp-is-public
true
x-cache-hits
0, 1

Verdicts & Comments Add Verdict or Comment

66 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| Typekit object| webpackChunk_sqs_polyfiller object| SQUARESPACE_ROLLUPS object| webpackChunkextract_css object| SQUARESPACE_I18N object| YUI_CONFIG function| YUI function| __extends function| __assign function| __rest function| __decorate function| __param function| __esDecorate function| __runInitializers function| __propKey function| __setFunctionName function| __metadata function| __awaiter function| __generator function| __exportStar function| __createBinding function| __values function| __read function| __spread function| __spreadArrays function| __spreadArray function| __await function| __asyncGenerator function| __asyncDelegator function| __asyncValues function| __makeTemplateObject function| __importStar function| __importDefault function| __classPrivateFieldGet function| __classPrivateFieldSet function| __classPrivateFieldIn function| __addDisposableResource function| __disposeResources object| regeneratorRuntime function| _ object| core object| __sqsWebGL object| websiteComponents function| Common boolean| COMMON_ALREADY_RAN object| Static function| noop object| Singleton object| Class object| Squarespace object| Y object| YUIStats string| _YUI_HISTORY_HASH_ENVIRONMENT_ID string| _yuid object| ESC_MANAGER object| Modernizr object| ImageLoader object| JSTween string| Sender function| sender string| id object| __STATSIG__ object| webpackChunkjavascript_sdk object| senderObjects object| senderForms boolean| senderFormsLoaded

3 Cookies

Domain/Path Name / Value
practical.engineering/ Name: crumb
Value: BfsUMy5yFvUKNzM1ODYwMDdhNTYyZjllYTNhMzkwODQ4N2I3M2Yz
practical.engineering/ Name: ss_cvr
Value: 7d8bbd9e-5d20-49ab-856d-1168535547fb|1724243351458|1724243351458|1724243351458|1
practical.engineering/ Name: ss_cvt
Value: 1724243351458

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Strict-Transport-Security max-age=15552000
X-Content-Type-Options nosniff

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

assets.squarespace.com
cdn.sender.net
images.squarespace-cdn.com
p.typekit.net
practical.engineering
static1.squarespace.com
use.typekit.net
104.22.75.115
151.101.0.238
151.101.192.238
151.101.64.237
184.24.77.144
184.24.77.154
198.49.23.144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