Submitted URL: http://spero.vc/
Effective URL: https://spero.vc/
Submission: On November 25 via api from US — Scanned from DE

Summary

This website contacted 9 IPs in 2 countries across 9 domains to perform 46 HTTP transactions. The main IP is 141.193.213.21, located in United States and belongs to CLOUDFLARESPECTRUM Cloudflare, Inc., US. The main domain is spero.vc.
TLS certificate: Issued by R3 on November 10th 2022. Valid for: 3 months.
This is the only time spero.vc was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 141.193.213.20 209242 (CLOUDFLAR...)
30 141.193.213.21 209242 (CLOUDFLAR...)
2 2606:4700:440... 13335 (CLOUDFLAR...)
7 2600:9000:223... 16509 (AMAZON-02)
1 2a04:4e42:400... 54113 (FASTLY)
1 2a00:1450:400... 15169 (GOOGLE)
2 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
46 9
Apex Domain
Subdomains
Transfer
31 spero.vc
spero.vc
1 MB
7 substackcdn.com
substackcdn.com — Cisco Umbrella Rank: 21458
651 KB
2 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 67
103 KB
2 substack.com
spero.substack.com
8 KB
1 google.de
www.google.de — Cisco Umbrella Rank: 5405
548 B
1 google.com
www.google.com — Cisco Umbrella Rank: 2
548 B
1 doubleclick.net
googleads.g.doubleclick.net — Cisco Umbrella Rank: 44
1 KB
1 gstatic.com
fonts.gstatic.com
13 KB
1 sentry-cdn.com
js.sentry-cdn.com — Cisco Umbrella Rank: 5793
1 KB
46 9
Domain Requested by
31 spero.vc 1 redirects spero.vc
7 substackcdn.com spero.substack.com
2 www.googletagmanager.com substackcdn.com
www.googletagmanager.com
2 spero.substack.com spero.vc
spero.substack.com
1 www.google.de
1 www.google.com
1 googleads.g.doubleclick.net www.googletagmanager.com
1 fonts.gstatic.com spero.substack.com
1 js.sentry-cdn.com spero.substack.com
46 9
Subject Issuer Validity Valid
spero.vc
R3
2022-11-10 -
2023-02-08
3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2022-10-13 -
2023-10-13
a year crt.sh
substackcdn.com
Amazon
2022-04-13 -
2023-05-12
a year crt.sh
*.sentry-cdn.com
GlobalSign Atlas R3 DV TLS CA 2022 Q3
2022-09-28 -
2023-10-30
a year crt.sh
*.gstatic.com
GTS CA 1C3
2022-11-02 -
2023-01-25
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2022-11-02 -
2023-01-25
3 months crt.sh
*.g.doubleclick.net
GTS CA 1C3
2022-11-02 -
2023-01-25
3 months crt.sh
www.google.com
GTS CA 1C3
2022-11-02 -
2023-01-25
3 months crt.sh
www.google.de
GTS CA 1C3
2022-11-02 -
2023-01-25
3 months crt.sh

This page contains 2 frames:

Primary Page: https://spero.vc/
Frame ID: 75E3B74D8318F506F4C5C4BB1CE4F21B
Requests: 30 HTTP requests in this frame

Frame: https://spero.substack.com/embed
Frame ID: 81519177C3BC38F97C0C1D3C3B3C31AE
Requests: 16 HTTP requests in this frame

Screenshot

Page Title

Spero Ventures

Page URL History Show full URLs

  1. http://spero.vc/ HTTP 301
    https://spero.vc/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link rel=["']stylesheet["'] [^>]+/wp-(?:content|includes)/
  • /wp-(?:content|includes)/

Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtag/js

Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Overall confidence: 100%
Detected patterns
  • jquery[.-]migrate(?:-([\d.]+))?(?:\.min)?\.js(?:\?ver=([\d.]+))?

Page Statistics

46
Requests

100 %
HTTPS

80 %
IPv6

9
Domains

9
Subdomains

9
IPs

2
Countries

1952 kB
Transfer

5476 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://spero.vc/ HTTP 301
    https://spero.vc/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

46 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
spero.vc/
Redirect Chain
  • http://spero.vc/
  • https://spero.vc/
40 KB
8 KB
Document
General
Full URL
https://spero.vc/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare / WP Engine
Resource Hash
a8e13dd8c54b15563510f8f1864a2c31f908000944bba6026ef7e9200a62a539

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
cache-control
max-age=600, must-revalidate
cf-cache-status
DYNAMIC
cf-ray
76f977846b08995c-FRA
content-encoding
br
content-type
text/html; charset=UTF-8
date
Fri, 25 Nov 2022 09:48:07 GMT
link
<https://spero.vc/wp-json/>; rel="https://api.w.org/" <https://spero.vc/wp-json/wp/v2/pages/33>; rel="alternate"; type="application/json" <https://spero.vc/>; rel=shortlink
server
cloudflare
vary
Accept-Encoding Accept-Encoding Accept-Encoding Accept-Encoding,Cookie
x-cache
HIT: 1
x-cache-group
normal
x-cacheable
SHORT
x-powered-by
WP Engine

Redirect headers

CF-Cache-Status
DYNAMIC
CF-RAY
76f977821e2a68e9-FRA
Connection
keep-alive
Content-Type
text/html
Date
Fri, 25 Nov 2022 09:48:07 GMT
Location
https://spero.vc/
Server
cloudflare
Transfer-Encoding
chunked
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
style.min.css
spero.vc/wp-includes/css/dist/block-library/
87 KB
12 KB
Stylesheet
General
Full URL
https://spero.vc/wp-includes/css/dist/block-library/style.min.css?ver=6.0.3
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
d7705700d24d5919255576642ad2c28bfc790390b7183a369038ff5c1e814d51

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
MISS
last-modified
Mon, 04 Jul 2022 12:10:37 GMT
server
cloudflare
etag
W/"62c2d8bd-15b64"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97785ad81995c-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
app.css
spero.vc/wp-content/themes/pilot/.dist/
355 KB
48 KB
Stylesheet
General
Full URL
https://spero.vc/wp-content/themes/pilot/.dist/app.css?_=1.0.1-9.3&ver=6.0.3
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
47ccfd2f4b7b2e580e5ddf7d2e49450bec54b3ce747440b3d56cf54a17ce3719

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
MISS
last-modified
Wed, 12 Jan 2022 22:26:04 GMT
server
cloudflare
etag
W/"61df557c-58d70"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
text/css
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97785bd82995c-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
jquery.min.js
spero.vc/wp-includes/js/jquery/
87 KB
31 KB
Script
General
Full URL
https://spero.vc/wp-includes/js/jquery/jquery.min.js?ver=3.6.0
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
bd4de6a3fc0fb68d6f76ba7b93514b96a92e585c295b5351c31ad92a4b0777ea

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
MISS
last-modified
Wed, 10 Mar 2021 15:07:24 GMT
server
cloudflare
etag
W/"6048e0ac-15db1"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97785bd83995c-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
jquery-migrate.min.js
spero.vc/wp-includes/js/jquery/
11 KB
4 KB
Script
General
Full URL
https://spero.vc/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.3.2
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
029e0a2e809fd6b5dbe76abe8b7a74936be306c9a8c27c814c4d44aa54623300

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
MISS
last-modified
Wed, 18 Nov 2020 09:06:06 GMT
server
cloudflare
etag
W/"5fb4e3fe-2bd8"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97785bd85995c-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
logo@2x.png
spero.vc/wp-content/themes/pilot/.dist/images/
2 KB
2 KB
Image
General
Full URL
https://spero.vc/wp-content/themes/pilot/.dist/images/logo@2x.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
77693b9a74ae871e6c1c5cb0278f0c99cadce6c8f32559e4fa8f4c5e447201f6

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
cf-cache-status
HIT
age
113478
cf-polished
origFmt=png, origSize=6287
content-disposition
inline; filename="logo@2x.webp"
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
1690
cf-bgj
imgq:100,h2pri
last-modified
Sat, 17 Apr 2021 05:30:28 GMT
server
cloudflare
etag
"607a7274-188f"
vary
Accept
content-type
image/webp
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
cf-ray
76f977885bca9064-FRA
footer-logo@2x.png
spero.vc/wp-content/themes/pilot/.dist/images/
5 KB
5 KB
Image
General
Full URL
https://spero.vc/wp-content/themes/pilot/.dist/images/footer-logo@2x.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
1b2e98ca57b4f7a32040e9d819b3125d141f111a79837233b76de47ba2d54d6b

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
cf-cache-status
MISS
last-modified
Sat, 17 Apr 2021 05:30:28 GMT
server
cloudflare
etag
"607a7274-13fa"
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
cf-ray
76f977888c289064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
5114
app.js
spero.vc/wp-content/themes/pilot/.dist/
1 MB
487 KB
Script
General
Full URL
https://spero.vc/wp-content/themes/pilot/.dist/app.js?ver=1.0.1-9.3
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
c0ebf6a750a9772e083be7b15a35e4fd8d1e35bfb6a326dc155a1437b0dad4b9

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
HIT
last-modified
Wed, 12 Jan 2022 22:26:04 GMT
server
cloudflare
age
149379
etag
W/"61df557c-16a9bb"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97787aa2b9064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
wp-emoji-release.min.js
spero.vc/wp-includes/js/
18 KB
5 KB
Script
General
Full URL
https://spero.vc/wp-includes/js/wp-emoji-release.min.js?ver=6.0.3
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
5aad5fbd4238981a9ff5e2772ff1353dfe1a801fb49542fe157418c1438f7782

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
content-encoding
br
cf-cache-status
MISS
last-modified
Tue, 12 Apr 2022 05:56:23 GMT
server
cloudflare
etag
W/"62551487-48b9"
vary
Accept-Encoding, Accept-Encoding, Accept-Encoding, Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
cf-ray
76f97788dcdc9064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
logo-skillshare@2x-376x0-c-default.png
spero.vc/wp-content/uploads/2021/05/
23 KB
23 KB
Image
General
Full URL
https://spero.vc/wp-content/uploads/2021/05/logo-skillshare@2x-376x0-c-default.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
153d50b301482f4389b0b6e62dc769833700af837e56c6a3a1e450af9f0b4a62

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
cf-cache-status
MISS
last-modified
Thu, 06 May 2021 21:38:26 GMT
server
cloudflare
etag
"609461d2-5ace"
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
cf-ray
76f97788fd049064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
23246
logo-tortuga@2x-1-376x0-c-default.png
spero.vc/wp-content/uploads/2021/05/
11 KB
11 KB
Image
General
Full URL
https://spero.vc/wp-content/uploads/2021/05/logo-tortuga@2x-1-376x0-c-default.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
5658a38053b0043d30ffabf35f5d8a4c8fb5ac09db8282cae7579b9364c17458

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
cf-cache-status
MISS
last-modified
Tue, 11 May 2021 06:37:49 GMT
server
cloudflare
etag
"609a263d-2a23"
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
cf-ray
76f97788fd149064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
10787
image-6-376x0-c-default.png
spero.vc/wp-content/uploads/2021/06/
5 KB
6 KB
Image
General
Full URL
https://spero.vc/wp-content/uploads/2021/06/image-6-376x0-c-default.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
a0e1caf19f14d3dbc4626aece0a5c3daf341b3bb0e3b1d7f077fe45ceabc768c

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.vc/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:08 GMT
cf-cache-status
MISS
last-modified
Thu, 10 Jun 2021 01:21:56 GMT
server
cloudflare
etag
"60c16934-1573"
vary
Accept-Encoding
content-type
image/png
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
cf-ray
76f97788fd169064-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
5491
MetaMap-3-376x0-c-default.png
spero.vc/wp-content/uploads/2022/03/
9 KB
9 KB
Image
General
Full URL
https://spero.vc/wp-content/uploads/2022/03/MetaMap-3-376x0-c-default.png
Requested by
Host: spero.vc
URL: https://spero.vc/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
141.193.213.21 , United States, ASN209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
b35584cd9697f9535b85c0d3fe9c28f60cac62547632e092c935744073480f97

Request headers

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https://spero.substack.com/api/v1/firehose?_=1669369689018&d=eyJldmVudCI6IlBhZ2VzIiwicHJvcGVydGllcyI6eyJicm93c2VyU2Vzc2lvbklkIjoicWpkamxhdHc3NGciLCJpZnJhbWVWaXNpdElkIjp7ImlkIjoiZmQyYWYwM2QtNWM5OC00MzRjLThhODAtNDgzNmQ2OGM3OGFhIiwidGltZXN0YW1wIjoiMjAyMi0xMS0yNVQwOTo0ODowOS4wMTdaIn19LCJjb250ZXh0Ijp7ImNsaWVudF90eXBlIjoid2ViIiwicGFnZSI6eyJyZWZlcnJlciI6Imh0dHBzOi8vc3Blcm8udmMvIiwidGl0bGUiOiJTcGVybyBWZW50dXJlcyB8IFN1YnN0YWNrIiwidXJsIjoiaHR0cHM6Ly9zcGVyby5zdWJzdGFjay5jb20vZW1iZWQifX19
Requested by
Host: spero.substack.com
URL: https://spero.substack.com/embed
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2606:4700:4400::6812:21f5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare / Express
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/embed
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:09 GMT
x-cluster
substack
strict-transport-security
max-age=31536000
cf-cache-status
DYNAMIC
server
cloudflare
x-powered-by
Express
vary
Accept-Encoding
content-type
image/gif
cache-control
no-cache
cf-ray
76f9778d1b759b31-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length
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x-served-by
Substack
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substackcdn.com/image/fetch/w_200,c_limit,f_auto,q_auto:good,fl_progressive:steep/ Frame 8151
4 KB
4 KB
Image
General
Full URL
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Requested by
Host: spero.substack.com
URL: https://spero.substack.com/embed
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2600:9000:223e:3e00:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
imgproxy /
Resource Hash
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Request headers

accept-language
de-DE,de;q=0.9
Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Tue, 20 Sep 2022 10:17:34 GMT
via
1.1 934706f40ffde6f857deae8d024c1192.cloudfront.net (CloudFront)
server
imgproxy
age
5700635
x-amz-cf-pop
FRA56-P4
etag
"aUSYZOwx8_8DQNfdyad_mCD-kBjyY0l_EvDsr5MS94g/RVy8iNGE0OC0xODM1OGUzZTk3OCI"
x-cache
Hit from cloudfront
content-type
image/png
cache-control
public, max-age=0
content-disposition
inline; filename="substack_wordmark.png"
alt-svc
h3=":443"; ma=86400
x-amz-cf-id
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content-length
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x-request-id
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js
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93 KB
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Script
General
Full URL
https://www.googletagmanager.com/gtag/js?id=undefined&l=localGaDataLayer
Requested by
Host: substackcdn.com
URL: https://substackcdn.com/min/main.bundle.js?v=1c44e4-184a66d6510
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:82a::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
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Security Headers
Name Value
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Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:09 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
cross-origin-resource-policy
cross-origin
alt-svc
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content-length
37461
x-xss-protection
0
last-modified
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server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
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access-control-allow-headers
Cache-Control
expires
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js
www.googletagmanager.com/gtag/ Frame 8151
179 KB
65 KB
Script
General
Full URL
https://www.googletagmanager.com/gtag/js?id=AW-316245675&l=localGaDataLayer&cx=c
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=undefined&l=localGaDataLayer
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2a00:1450:4001:82a::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

date
Fri, 25 Nov 2022 09:48:09 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
cross-origin-resource-policy
cross-origin
alt-svc
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content-length
66973
x-xss-protection
0
last-modified
Fri, 25 Nov 2022 09:00:00 GMT
server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
access-control-allow-headers
Cache-Control
expires
Fri, 25 Nov 2022 09:48:09 GMT
/
googleads.g.doubleclick.net/pagead/viewthroughconversion/316245675/ Frame 8151
2 KB
1 KB
Script
General
Full URL
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/316245675/?random=1669369689658&cv=11&fst=1669369689658&bg=ffffff&guid=ON&async=1&gtm=2oab90&u_w=1600&u_h=1200&hn=www.googleadservices.com&frm=2&url=https%3A%2F%2Fspero.substack.com%2Fembed&ref=https%3A%2F%2Fspero.vc%2F&tiba=Spero%20Ventures%20%7C%20Substack&data=event%3Dgtag.config&rfmt=3&fmt=4
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=AW-316245675&l=localGaDataLayer&cx=c
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:831::2002 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
cafe /
Resource Hash
05c02586b89932ad65252784f036349f6ec4aa5d1c97bed9e6b1e9ff2566be9d
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

pragma
no-cache
date
Fri, 25 Nov 2022 09:48:09 GMT
content-encoding
br
x-content-type-options
nosniff
server
cafe
content-type
text/javascript; charset=UTF-8
p3p
policyref="https://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
cache-control
no-cache, must-revalidate
cross-origin-resource-policy
cross-origin
content-disposition
attachment; filename="f.txt"
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
899
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
/
www.google.com/pagead/1p-user-list/316245675/ Frame 8151
42 B
548 B
Image
General
Full URL
https://www.google.com/pagead/1p-user-list/316245675/?random=1669369689658&cv=11&fst=1669366800000&bg=ffffff&guid=ON&async=1&gtm=2oab90&u_w=1600&u_h=1200&frm=2&url=https%3A%2F%2Fspero.substack.com%2Fembed&ref=https%3A%2F%2Fspero.vc%2F&tiba=Spero%20Ventures%20%7C%20Substack&data=event%3Dgtag.config&fmt=3&is_vtc=1&random=82465180&rmt_tld=0&ipr=y
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:811::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
cafe /
Resource Hash
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629
Security Headers
Name Value
Content-Security-Policy script-src 'none'; object-src 'none'
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

pragma
no-cache
date
Fri, 25 Nov 2022 09:48:09 GMT
content-security-policy
script-src 'none'; object-src 'none'
x-content-type-options
nosniff
server
cafe
content-type
image/gif
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
42
x-xss-protection
0
expires
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/
www.google.de/pagead/1p-user-list/316245675/ Frame 8151
42 B
548 B
Image
General
Full URL
https://www.google.de/pagead/1p-user-list/316245675/?random=1669369689658&cv=11&fst=1669366800000&bg=ffffff&guid=ON&async=1&gtm=2oab90&u_w=1600&u_h=1200&frm=2&url=https%3A%2F%2Fspero.substack.com%2Fembed&ref=https%3A%2F%2Fspero.vc%2F&tiba=Spero%20Ventures%20%7C%20Substack&data=event%3Dgtag.config&fmt=3&is_vtc=1&random=82465180&rmt_tld=1&ipr=y
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:80e::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
cafe /
Resource Hash
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629
Security Headers
Name Value
Content-Security-Policy script-src 'none'; object-src 'none'
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://spero.substack.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.5304.110 Safari/537.36

Response headers

pragma
no-cache
date
Fri, 25 Nov 2022 09:48:09 GMT
content-security-policy
script-src 'none'; object-src 'none'
x-content-type-options
nosniff
server
cafe
content-type
image/gif
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
alt-svc
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content-length
42
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

13 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| 0 object| _wpemojiSettings undefined| $ function| jQuery object| bootstrap object| ___FONT_AWESOME___ object| FontAwesomeConfig object| FontAwesome object| def object| $item number| leftOffset object| twemoji object| wp

2 Cookies

Domain/Path Name / Value
.substack.com/ Name: __cf_bm
Value: 49ACPspUggd6tpxubWy2_rtWDurUZiAV_m6Q0lEUbNs-1669369688-0-Ad5kVZVnCNF958075/0OrdAPID3icINre7SAmmNa86cWdH1l1WaKaShR6X4VvcvBOPX955UcPOG9SvWohZrCcjU=
.doubleclick.net/ Name: test_cookie
Value: CheckForPermission

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.

fonts.gstatic.com
googleads.g.doubleclick.net
js.sentry-cdn.com
spero.substack.com
spero.vc
substackcdn.com
www.google.com
www.google.de
www.googletagmanager.com
141.193.213.20
141.193.213.21
2600:9000:223e:3e00:4:b4b9:d3c0:93a1
2606:4700:4400::6812:21f5
2a00:1450:4001:80e::2003
2a00:1450:4001:811::2004
2a00:1450:4001:82a::2008
2a00:1450:4001:831::2002
2a00:1450:4001:831::2003
2a04:4e42:400::729
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