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www.cyfrin.io Open in urlscan Pro
198.49.23.145  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://cyfrin.io/
Effective URL: https://www.cyfrin.io/
Submission: On January 24 via api from PL — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 10 IPs in 2 countries across 6 domains to perform 54 HTTP transactions. The main IP is 198.49.23.145, located in United States and belongs to SQUARESPACE, US. The main domain is www.cyfrin.io.
TLS certificate: Issued by R3 on December 28th 2022. Valid for: 3 months.
This is the only time www.cyfrin.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

15    198.49.23.145 (United States)

ASN53831 (SQUARESPACE, US)
cyfrin.io
www.cyfrin.io
9    2a02:26f0:3500:16::215:148f (Frankfurt am Main, Germany)

ASN20940 (AKAMAI-ASN1, NL)
use.typekit.net
1    2a00:1450:4001:80f::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.googleapis.com
11    151.101.128.237 (United States)

ASN54113 (FASTLY, US)
assets.squarespace.com
4    151.101.0.238 (United States)

ASN54113 (FASTLY, US)
static1.squarespace.com
1    2a00:1450:4001:800::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
ajax.googleapis.com
14    151.101.192.238 (United States)

ASN54113 (FASTLY, US)
images.squarespace-cdn.com
1    2a00:1450:4001:82b::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.gstatic.com
1    2a02:26f0:3500:16::215:148b (Frankfurt am Main, Germany)

ASN20940 (AKAMAI-ASN1, NL)
p.typekit.net
Apex Domain
Subdomains		 Transfer
15 squarespace.com
assets.squarespace.com — Cisco Umbrella Rank: 5391
static1.squarespace.com — Cisco Umbrella Rank: 5214
1006 KB
15 cyfrin.io
cyfrin.io
www.cyfrin.io
36 KB
14 squarespace-cdn.com
images.squarespace-cdn.com — Cisco Umbrella Rank: 4280
1 MB
10 typekit.net
use.typekit.net — Cisco Umbrella Rank: 415
p.typekit.net — Cisco Umbrella Rank: 557
174 KB
2 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 35
ajax.googleapis.com — Cisco Umbrella Rank: 292
31 KB
1 gstatic.com
fonts.gstatic.com
31 KB
54 6
Domain Requested by
14 images.squarespace-cdn.com www.cyfrin.io
14 www.cyfrin.io 2 redirects www.cyfrin.io
assets.squarespace.com
11 assets.squarespace.com www.cyfrin.io
static1.squarespace.com
assets.squarespace.com
9 use.typekit.net www.cyfrin.io
4 static1.squarespace.com www.cyfrin.io
1 p.typekit.net www.cyfrin.io
1 fonts.gstatic.com fonts.googleapis.com
1 ajax.googleapis.com www.cyfrin.io
1 fonts.googleapis.com www.cyfrin.io
1 cyfrin.io 1 redirects
54 10

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

Domain
www.youtube.com
compound.finance
docs.google.com
Subject Issuer Validity Valid
www.cyfrin.io
R3		 2022-12-28 -
2023-03-28		 3 months crt.sh
use.typekit.net
DigiCert TLS Hybrid ECC SHA384 2020 CA1		 2022-09-14 -
2023-10-15		 a year crt.sh
upload.video.google.com
GTS CA 1C3		 2023-01-02 -
2023-03-27		 3 months crt.sh
*.squarespace.com
DigiCert TLS RSA SHA256 2020 CA1		 2022-03-12 -
2023-03-25		 a year crt.sh
*.squarespace-cdn.com
R3		 2022-12-07 -
2023-03-07		 3 months crt.sh
*.gstatic.com
GTS CA 1C3		 2023-01-02 -
2023-03-27		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://www.cyfrin.io/
Frame ID: 6A770471877DE19899256FDF81B77A40
Requests: 55 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Cyfrin | Smart Contract Audits

Page URL History Show full URLs

  1. http://cyfrin.io/ HTTP 301
    https://www.cyfrin.io/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <!-- This is Squarespace\. -->
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com
Overall confidence: 100%
Detected patterns
  • lightbox(?:-plus-jquery)?.{0,32}\.js
Overall confidence: 100%
Detected patterns
  • /([\d.]+)/jquery(?:\.min)?\.js
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

54
Requests

96 %
HTTPS

56 %
IPv6

6
Domains

10
Subdomains

10
IPs

2
Countries

2476 kB
Transfer

6509 kB
Size

2
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://cyfrin.io/ HTTP 301
    https://www.cyfrin.io/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 14
  • https://www.cyfrin.io/s/plugin-lightbox.css HTTP 302
  • https://static1.squarespace.com/static/6332ddc9c3f53f31fa48c436/t/634d1117cb4d9e41d6cc06a6/1665995031554/plugin-lightbox.css
Request Chain 15
  • https://www.cyfrin.io/s/plugin-lightbox.js HTTP 302
  • https://static1.squarespace.com/static/6332ddc9c3f53f31fa48c436/t/634d111d15d3324890a5230a/1665995038020/plugin-lightbox.js

54 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
www.cyfrin.io/
Redirect Chain
  • http://cyfrin.io/
  • https://www.cyfrin.io/
116 KB
19 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.145 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
fc52d836d1eed89298359fc05b17e6c92adee21ac6497e687a3f9020b565749b
Security Headers
Name Value
Strict-Transport-Security max-age=43200
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

accept-ranges
bytes
age
10706
content-encoding
gzip
content-length
19631
content-type
text/html;charset=utf-8
date
Tue, 24 Jan 2023 02:21:40 GMT
etag
W/"852971eabaf710aa8f0e886ff4a6076f--gzip"
expires
Thu, 01 Jan 1970 00:00:00 GMT
server
Squarespace
strict-transport-security
max-age=43200
vary
Accept-Encoding
x-content-type-options
nosniff
x-contextid
5ArJsF9N/eusCQZAG
x-frame-options
SAMEORIGIN

Redirect headers

Age
10661
Content-Length
0
Date
Tue, 24 Jan 2023 02:22:25 GMT
Location
https://www.cyfrin.io/
Server
Squarespace
X-Contextid
uXccKQ1C/p1Xh2bg2
QRkTGrB257KTfCYP3StncClh7tGfX3yWJody_6DBN3CfenIIfFHN4UJLFRbh52jhWDjDwD4qZewojDFcFQFcwDBcjQbtjDbDFy7MMkG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0ZeNhZPuzScFG-AbljcXaS...
use.typekit.net/ik/ 		18 KB
7 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://use.typekit.net/ik/QRkTGrB257KTfCYP3StncClh7tGfX3yWJody_6DBN3CfenIIfFHN4UJLFRbh52jhWDjDwD4qZewojDFcFQFcwDBcjQbtjDbDFy7MMkG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0ZeNhZPuzScFG-AbljcXaSkoDSWmyScmDSeBRZPoRdhXCHKoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0dcmXOeBDOcu8OeFoZ14TdKoTdkUqdaZ8OANkjhyTZfuKdQiDO1FUiABkZWF3jAF8OcFzdPUCdhFydeyzSabCSaBujW48SagyjhmDjhy8ZYmC-Ao1OcFzdPUaiaS0jAFu-WsoShFGZAsude80ZkoRdhXCiaiaOcBRiA8XpWFR-emqiAUTdcS0dcmXOYiaikoySkolZPUaiaS0ja8cSc80Oc8zOYiaikoqdaZ8OANkjhyTZfuKdQiDO1FUiABkZWF3jAF8OcFzdPUaiaS0SaBujW48SagyjhmDjhy8ZYmC-Ao1OcFzdPJwSY4zpe8ljPu0daZyJ6iRjAUCiAoyJyBq-AtljhN0Zem0ShmqOWi8jKG4fHvgIMMjgfMfH6qJnbIbMg6eJMJ7fbKOMsMMeMS6MKG4f4M3IMIjMkMfH6qJDbvbMs6IJMJ7fbRV2UMgeMS6MKG4fFMVIMIjIPMfH6qJrubbMy6IJMHbMpksCZXe.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a02:26f0:3500:16::215:148f Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
Software
nginx /
Resource Hash
955dec958297fef74eae20cbedf6e17bac745eca1c50ee24c93014ba94e1a279
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains;

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubDomains;
content-encoding
gzip
date
Tue, 24 Jan 2023 05:20:08 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
6898
css2
fonts.googleapis.com/ 		8 KB
1 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,400;0,700;1,400;1,700&family=Playfair+Display:wght@400
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:80f::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
06207d6dd3d3899cb214dd224811bd8cf41413a8f4d36f14bc23f9a447afe552
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
0
last-modified
Tue, 24 Jan 2023 05:20:08 GMT
server
ESF
cross-origin-opener-policy
same-origin-allow-popups
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Tue, 24 Jan 2023 05:20:08 GMT
modern.js
assets.squarespace.com/@sqs/polyfiller/1.6/ 		115 KB
42 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/@sqs/polyfiller/1.6/modern.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
54e832663426c696b1f603379026e5e15720e8c812bbbc60d63aa2ad8a479f75

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
1, 106975
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
gzip
via
1.1 varnish, 1.1 varnish
age
4099243
x-cache
HIT, HIT
content-length
42447
x-served-by
cache-iad-kiad7000073-IAD, cache-hhn-etou8220058-HHN
last-modified
Mon, 31 Oct 2022 21:19:57 GMT
server
UploadServer
x-timer
S1674537608.074390,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
expires
Thu, 07 Dec 2023 18:39:24 GMT
extract-css-runtime-9de4a8fea8722c2fb5b0b-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/ 		44 KB
15 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/universal/scripts-compressed/extract-css-runtime-9de4a8fea8722c2fb5b0b-min.en-US.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
76b798f39c795d1192188f8e285c9e7539d2e3d1bbe01c75241d10c99a2fffc7

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
34, 1056
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
22188
x-cache
HIT, HIT
content-length
15274
x-served-by
cache-iad-kcgs7200171-IAD, cache-hhn-etou8220058-HHN
last-modified
Mon, 23 Jan 2023 22:58:39 GMT
server
UploadServer
x-timer
S1674537608.074514,VS0,VE0
etag
"e1451077b841c9ea5f17f3bf690bad6b"
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
expires
Tue, 23 Jan 2024 23:10:19 GMT
extract-css-moment-js-vendor-5082e2dab696b020ac83a-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/ 		575 KB
86 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/universal/scripts-compressed/extract-css-moment-js-vendor-5082e2dab696b020ac83a-min.en-US.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
a59acd7a8cbaf68d5d628ac09c501f01a2f3f42c9affa8f3d101f2860d1cc3f7

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
1, 102573
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
4622480
x-cache
HIT, HIT
content-length
87950
x-served-by
cache-iad-kjyo7100028-IAD, cache-hhn-etou8220058-HHN
last-modified
Mon, 21 Nov 2022 16:44:05 GMT
server
UploadServer
x-timer
S1674537608.074829,VS0,VE0
etag
"c790849e8518999c8594a0bbb6597784"
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
expires
Fri, 01 Dec 2023 17:18:47 GMT
cldr-resource-pack-c6a38111aec507149cb3d-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/ 		119 KB
18 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/universal/scripts-compressed/cldr-resource-pack-c6a38111aec507149cb3d-min.en-US.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
cc24dd38ed85a67f17008d33a7131f4103302bd01b11126f9c8c2dcd6ae020e5

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
25, 69389
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
482630
x-cache
HIT, HIT
content-length
18361
x-served-by
cache-iad-kiad7000057-IAD, cache-hhn-etou8220058-HHN
last-modified
Wed, 18 Jan 2023 14:53:08 GMT
server
UploadServer
x-timer
S1674537608.074812,VS0,VE0
etag
"1fb78cb0eb4ac17a64497e0e8847ddcc"
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
expires
Thu, 18 Jan 2024 15:16:18 GMT
common-vendors-stable-fd2acc815706e38fcfdf0-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/ 		240 KB
69 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/universal/scripts-compressed/common-vendors-stable-fd2acc815706e38fcfdf0-min.en-US.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
00010b2f3db222fc437b60b2f52a040809b21b18b44d3e9f548dbae2533d1e81

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
23, 68294
date
Tue, 24 Jan 2023 05:20:08 GMT
content-encoding
br
via
1.1 varnish, 1.1 varnish
age
482627
x-cache
HIT, HIT
content-length
70642
x-served-by
cache-iad-kcgs7200137-IAD, cache-hhn-etou8220058-HHN
last-modified
Wed, 18 Jan 2023 14:52:01 GMT
server
UploadServer
x-timer
S1674537608.074729,VS0,VE0
etag
"acbc32f393943567180ad813f45cee9d"
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
expires
Thu, 18 Jan 2024 15:16:20 GMT
common-vendors-f2ab9d621459adff61854-min.en-US.js
assets.squarespace.com/universal/scripts-compressed/ 		723 KB
162 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.squarespace.com/universal/scripts-compressed/common-vendors-f2ab9d621459adff61854-min.en-US.js
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.128.237 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
UploadServer /
Resource Hash
475f9a6af98e5deb8149ca66982148d4e1a6700ce176b9411ec2934d89b5cfd4

Request headers

Referer
https://www.cyfrin.io/
Origin
https://www.cyfrin.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
18, 3718
date
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strict-transport-security
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date
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strict-transport-security
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59 B 		XHR
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date
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strict-transport-security
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x-content-type-options
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date
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TLS 1.3, , AES_256_GCM
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date
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H2
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TLS 1.3, , AES_256_GCM
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User-Agent
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date
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H2
Security
TLS 1.3, , AES_256_GCM
Server
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nginx /
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date
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server
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Security
TLS 1.3, , AES_256_GCM
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User-Agent
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date
Tue, 24 Jan 2023 05:20:08 GMT
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H2
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nginx /
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User-Agent
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date
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server
nginx
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24 KB 		Font
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H2
Security
TLS 1.3, , AES_256_GCM
Server
2a02:26f0:3500:16::215:148f Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
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date
Tue, 24 Jan 2023 05:20:08 GMT
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nginx
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24 KB 		Font
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https://use.typekit.net/af/c0faa1/00000000000000000001486e/27/l?subset_id=2&fvd=i7&v=3
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Host: www.cyfrin.io
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Security
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date
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server
nginx
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Host: www.cyfrin.io
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H2
Security
TLS 1.3, , AES_256_GCM
Server
2a02:26f0:3500:16::215:148f Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
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date
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H2
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TLS 1.3, , AES_128_GCM
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H2
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https://p.typekit.net/p.gif?s=2&k=646866_6332ddc9c3f53f31fa48c436&ht=tk&h=www.cyfrin.io&f=175.173.139.6160.1997.1999.2000.10875&a=646866&js=1.21.0&app=typekit&e=js&_=1674537608718
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a02:26f0:3500:16::215:148b Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
Software
nginx /
Resource Hash
9b9265c69a5cc295d1ab0d04e0273b3677db1a6216ce2ccf4efc8c277ed84b39

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

date
Tue, 24 Jan 2023 05:20:08 GMT
last-modified
Sat, 09 Oct 2021 02:10:03 GMT
server
nginx
etag
"6160f9fb-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
Untitled+design+%282%29.png
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85 KB 		Image
General
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Full URL
https://images.squarespace-cdn.com/content/v1/6332ddc9c3f53f31fa48c436/1672199348373-NFFJI14PD01QILFZTW52/Untitled+design+%282%29.png?format=300w
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
9530c3e5fbc4a8170da123418bf46ec58e80a0b2f3da5d724b1cbe012302aa5d

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
46, 0
date
Tue, 24 Jan 2023 05:20:08 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
21526
x-cache
HIT, MISS
content-length
86940
x-served-by
cache-iad-kcgs7200056-IAD, cache-hhn-etou8220098-HHN
x-timer
S1674537609.769680,VS0,VE88
etag
CJPnmYK0m/wCEAE=
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
accept-ranges
bytes
timing-allow-origin
*
tracepoint
Fastly
alex.jpeg
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30 KB 		Image
General
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Full URL
https://images.squarespace-cdn.com/content/v1/6332ddc9c3f53f31fa48c436/1672234800268-KQH9VDYC17BSG8URVIUH/alex.jpeg?format=300w
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
2162fd056706449d496ef88dffb6ece5c5a0214cdb5bf8b148f7a807b6222d57

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
1, 1
date
Tue, 24 Jan 2023 05:20:08 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
489685
x-cache
HIT, HIT
content-length
30701
x-served-by
cache-iad-kcgs7200147-IAD, cache-hhn-etou8220098-HHN
x-timer
S1674537609.782300,VS0,VE1
etag
CMbHyoq4nPwCEAE=
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
accept-ranges
bytes
timing-allow-origin
*
tracepoint
Fastly
1655660485085.jpeg
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12 KB 		Image
General
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Full URL
https://images.squarespace-cdn.com/content/v1/6332ddc9c3f53f31fa48c436/1672242043756-INP22I02ZR00B69NDS05/1655660485085.jpeg?format=300w
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
b804ca8d2b728626b3e208e46e95ef863adab273c0e19d22e5132d1b26eb35ad

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
1, 1
date
Tue, 24 Jan 2023 05:20:08 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
489685
x-cache
HIT, HIT
content-length
12453
x-served-by
cache-iad-kjyo7100097-IAD, cache-hhn-etou8220098-HHN
x-timer
S1674537609.794807,VS0,VE1
etag
CMGYjYnTnPwCEAE=
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
accept-ranges
bytes
timing-allow-origin
*
tracepoint
Fastly
oSbJ0iAG_400x400.jpg
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29 KB 		Image
General
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Full URL
https://images.squarespace-cdn.com/content/v1/6332ddc9c3f53f31fa48c436/1672242176450-MQ6G7QG4NUGYX2SFBE8V/oSbJ0iAG_400x400.jpg?format=300w
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.192.238 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
8f7ce9517724c7132976cfb9946c57d390d3dcd931acf30e7dd43b543faa53e3

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

x-cache-hits
1, 1
date
Tue, 24 Jan 2023 05:20:08 GMT
via
1.1 google, 1.1 varnish, 1.1 varnish
age
489685
x-cache
HIT, HIT
content-length
30047
x-served-by
cache-iad-kcgs7200118-IAD, cache-hhn-etou8220098-HHN
x-timer
S1674537609.806811,VS0,VE5
etag
CITu48fTnPwCEAE=
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
accept-ranges
bytes
timing-allow-origin
*
tracepoint
Fastly
bio-1
www.cyfrin.io/ 		9 KB
3 KB 		Fetch
General
Check archive.org
Download Go to
Full URL
https://www.cyfrin.io/bio-1?format=json
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/s/plugin-lightbox.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.145 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
083f307dd71a427f6bb7eb7c8edda0fef611bf79787b0d9c6f3792d8bec2e27b
Security Headers
Name Value
Strict-Transport-Security max-age=43200
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

date
Tue, 24 Jan 2023 02:21:42 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=43200
age
10706
x-contextid
5ArJsF9N/hGnVNK3z
content-length
3380
pragma
cache
server
Squarespace
etag
W/"07b3c4c350be527ee20c6af5799d02f2--gzip"
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
content-type
application/json;charset=utf-8
cache-control
public, max-age=94608000
accept-ranges
bytes
expires
Thu, 01 Jan 1970 00:00:00 GMT
bio-2
www.cyfrin.io/ 		9 KB
3 KB 		Fetch
General
Check archive.org
Download Go to
Full URL
https://www.cyfrin.io/bio-2?format=json
Requested by
Host: www.cyfrin.io
URL: https://www.cyfrin.io/s/plugin-lightbox.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
198.49.23.145 , United States, ASN53831 (SQUARESPACE, US),
Reverse DNS
Software
Squarespace /
Resource Hash
01f5f112c8bc2aaf551ee54edcf8397617fdd2766f42c617f773bfc32212e6a2
Security Headers
Name Value
Strict-Transport-Security max-age=43200
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.cyfrin.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

date
Tue, 24 Jan 2023 02:21:42 GMT
content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
max-age=43200
age
10706
x-contextid
5ArJsF9N/Hr3TMpvt
content-length
3300
pragma
cache
server
Squarespace
etag
W/"3ce1aa1f4484b011f88bfba20d10622b--gzip"
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
content-type
application/json;charset=utf-8
cache-control
public, max-age=94608000
accept-ranges
bytes
expires
Thu, 01 Jan 1970 00:00:00 GMT
truncated
/ 		252 B
0 		Image
General
Check archive.org
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Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
ce00579cee0a5c72f5353b3d1a21512e8a399b3f88a63320b2fe45f6136b8383

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.74 Safari/537.36

Response headers

Content-Type
image/svg+xml;charset=utf-8

Verdicts & Comments Add Verdict or Comment

59 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| oncontentvisibilityautostatechange 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| __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| _ object| core object| MobileWebContainer function| Common boolean| COMMON_ALREADY_RAN object| Static function| noop object| Singleton object| Class object| Squarespace object| SquarespaceFonts object| Y object| YUIStats string| _YUI_HISTORY_HASH_ENVIRONMENT_ID string| _yuid object| ESC_MANAGER object| Modernizr object| ImageLoader object| JSTween function| $ function| jQuery function| pluginLightbox string| id object| __SENTRY__ boolean| supportsTime object| pluginLightboxItems

2 Cookies

Domain/Path Name / Value
cyfrin.io/ Name: crumb
Value: BS5N1VimaDHPYTY2ZjUzMTgyODNmYTI1OTMwYjYwMmY4MGI5ZDdm
www.cyfrin.io/ Name: crumb
Value: BbjV3W6/P7ghMGJjYmQwYTIwZTFkYjRiNDAxNjY0N2FkMDNkZTAz

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=43200
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

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.

ajax.googleapis.com
assets.squarespace.com
cyfrin.io
fonts.googleapis.com
fonts.gstatic.com
images.squarespace-cdn.com
p.typekit.net
static1.squarespace.com
use.typekit.net
www.cyfrin.io
151.101.0.238
151.101.128.237
151.101.192.238
198.49.23.145
2a00:1450:4001:800::200a
2a00:1450:4001:80f::200a
2a00:1450:4001:82b::2003
2a02:26f0:3500:16::215:148b
2a02:26f0:3500:16::215:148f
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