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sylvesterlabs.net Open in urlscan Pro
188.114.96.3  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: https://sylvesterlabs.org/
Effective URL: https://sylvesterlabs.net/
Submission: On April 18 via api from US — Scanned from NL
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 3 countries across 3 domains to perform 6 HTTP transactions. The main IP is 188.114.96.3, located in Amsterdam, Netherlands and belongs to CLOUDFLARENET, US. The main domain is sylvesterlabs.net.
TLS certificate: Issued by GTS CA 1P5 on April 17th 2024. Valid for: 3 months.
This is the only time sylvesterlabs.net was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 2a06:98c1:312... 13335 (CLOUDFLAR...)
2 188.114.96.3 13335 (CLOUDFLAR...)
2 104.17.24.14 13335 (CLOUDFLAR...)
1 3 104.17.3.184 13335 (CLOUDFLAR...)
6 3
Apex Domain
Subdomains		 Transfer
5 cloudflare.com
cdnjs.cloudflare.com — Cisco Umbrella Rank: 231
challenges.cloudflare.com — Cisco Umbrella Rank: 4647
44 KB
2 sylvesterlabs.net
sylvesterlabs.net
19 KB
1 sylvesterlabs.org
sylvesterlabs.org
524 B
6 3
Domain Requested by
3 challenges.cloudflare.com 1 redirects sylvesterlabs.net
challenges.cloudflare.com
2 cdnjs.cloudflare.com sylvesterlabs.net
2 sylvesterlabs.net
1 sylvesterlabs.org 1 redirects
6 4

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

Domain
www.cloudflare.com
Subject Issuer Validity Valid
sylvesterlabs.net
GTS CA 1P5		 2024-04-17 -
2024-07-16		 3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3		 2023-07-03 -
2024-07-02		 a year crt.sh
challenges.cloudflare.com
Cloudflare Inc ECC CA-3		 2023-08-18 -
2024-08-17		 a year crt.sh

This page contains 2 frames:

Primary Page: https://sylvesterlabs.net/
Frame ID: EBD2CD756E891BDE693EB5F1491BB66D
Requests: 5 HTTP requests in this frame

Frame: https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/u4cjn/0x4AAAAAAAXdHkqtn1w2VJKV/auto/normal
Frame ID: D663CFB8FC2F827ED4DD926760CBC9E9
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Just a moment...

Page URL History Show full URLs

  1. https://sylvesterlabs.org/ HTTP 302
    https://sylvesterlabs.net/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

Page Statistics

6
Requests

83 %
HTTPS

25 %
IPv6

3
Domains

4
Subdomains

3
IPs

3
Countries

63 kB
Transfer

378 kB
Size

0
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. https://sylvesterlabs.org/ HTTP 302
    https://sylvesterlabs.net/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 2
  • https://challenges.cloudflare.com/turnstile/v0/api.js?onload=onloadTurnstileCallback HTTP 302
  • https://challenges.cloudflare.com/turnstile/v0/g/54ea73d52131/api.js?onload=onloadTurnstileCallback

6 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
sylvesterlabs.net/
Redirect Chain
  • https://sylvesterlabs.org/
  • https://sylvesterlabs.net/
35 KB
10 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://sylvesterlabs.net/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
9944444b5169a93ca8cbb75b9ff22b72b9cc59ca919c547211510dbd1b14300c

Request headers

Accept-Language
nl-NL,nl;q=0.9;q=0.9
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
no-cache, no-store, must-revalidate
cf-cache-status
DYNAMIC
cf-ray
8761dca1bd09b950-AMS
content-encoding
br
content-type
text/html; charset=utf-8
date
Thu, 18 Apr 2024 04:20:21 GMT
expires
0
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
pragma
no-cache
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=2L65%2FOk1DZhjDjrR0gfuwCDAS6f55dGRsWxquERnmBKWT1i3yQ2vlfAulT%2FXKQxSd%2BOFiiCi0nc8j4WRNcIR0eXpBfV5bLJfwuXWcSQkk4RXzs7qk9wItKtVNu8KTB6f0r6BBw%3D%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
x-ratelimit-limit
1000
x-ratelimit-remaining
999
x-ratelimit-reset
1713414023

Redirect headers

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray
8761dc9f9d709fa8-AMS
content-type
text/html; charset=utf-8
date
Thu, 18 Apr 2024 04:20:21 GMT
location
https://sylvesterlabs.net
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=XMbMP%2BIy2IpfnQWR%2FSny4xlf4SIefMmotNgD2ql%2Fls%2FKq%2FNyhs1%2B25%2FH7aoL5asDk%2FYWBtATNZGqfEEmp8W5KDCqo65kd%2BASkKY0t9nJQgqC%2Blm5N04%2B3hZ6QCRQ6d6xqDmXbM4baF768MSPZc0tEQ%3D%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
vary
Accept
x-ratelimit-limit
1000
x-ratelimit-remaining
999
x-ratelimit-reset
1713414023
bootstrap.min.css
cdnjs.cloudflare.com/ajax/libs/bootstrap/5.2.1/css/ 		191 KB
20 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.2.1/css/bootstrap.min.css
Requested by
Host: sylvesterlabs.net
URL: https://sylvesterlabs.net/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.17.24.14 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
2933c96348a4eae7cbbf8f280ca0981586a9b5c097ef952b996cad7d28f2fad0
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
Origin
https://sylvesterlabs.net
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 18 Apr 2024 04:20:21 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security
max-age=15780000
age
139462
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
20276
last-modified
Wed, 07 Sep 2022 16:02:07 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"6318c07f-4f34"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=4yUe%2F1gST%2B1E2obC8clDoAEl%2F1yvJ9%2BJFs7ULC6U8twgbY9%2BZ9hZcl%2Fvi%2B4iNKBQ2xiqwgWiRZxaK22zDVyzto1oCznHl%2Bzhtr7qjjLGXSp%2FY%2BDczo3RDSjU2Wu9B4HnWTC6U0el"}],"group":"cf-nel","max_age":604800}
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=30672000
accept-ranges
bytes
timing-allow-origin
*
cf-ray
8761dca3bc6166b4-AMS
expires
Tue, 08 Apr 2025 04:20:21 GMT
bootstrap-icons.min.css
cdnjs.cloudflare.com/ajax/libs/bootstrap-icons/1.9.1/font/ 		76 KB
10 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/bootstrap-icons/1.9.1/font/bootstrap-icons.min.css
Requested by
Host: sylvesterlabs.net
URL: https://sylvesterlabs.net/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.17.24.14 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
ab473681c33f3651348191decd30c331e854797b26745f60bf867fec058c4f53
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
Origin
https://sylvesterlabs.net
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 18 Apr 2024 04:20:21 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security
max-age=15780000
age
540315
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
9146
last-modified
Sun, 17 Jul 2022 02:20:40 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"62d371f8-23ba"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Ia6WdYnO269u6g2QWmfahudOudxA0iEt5UAkfvUDU1Y02V4evJL2vqx71pG%2FO3l8uHlxt1sk8ZUpOTZYzvfNkoUqgSt0rdIkOcwyON61MGNrEweFKrvhkYfUu0acsEsyy2cPJE86"}],"group":"cf-nel","max_age":604800}
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=30672000
accept-ranges
bytes
timing-allow-origin
*
cf-ray
8761dca3bc6266b4-AMS
expires
Tue, 08 Apr 2025 04:20:21 GMT
api.js
challenges.cloudflare.com/turnstile/v0/g/54ea73d52131/
Redirect Chain
  • https://challenges.cloudflare.com/turnstile/v0/api.js?onload=onloadTurnstileCallback
  • https://challenges.cloudflare.com/turnstile/v0/g/54ea73d52131/api.js?onload=onloadTurnstileCallback
41 KB
14 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://challenges.cloudflare.com/turnstile/v0/g/54ea73d52131/api.js?onload=onloadTurnstileCallback
Requested by
Host: sylvesterlabs.net
URL: https://sylvesterlabs.net/
Protocol
H3
Server
104.17.3.184 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
8af2da74872f03e058ab79a584176d2086afc01bbd42dd2ed14259179341be6a

Request headers

Accept-Language
nl-NL,nl;q=0.9;q=0.9
Referer
https://sylvesterlabs.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Response headers

date
Thu, 18 Apr 2024 04:20:21 GMT
content-encoding
br
server
cloudflare
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
max-age=31536000
cross-origin-resource-policy
cross-origin
cf-ray
8761dca419791afe-AMS
alt-svc
h3=":443"; ma=86400

Redirect headers

date
Thu, 18 Apr 2024 04:20:21 GMT
server
cloudflare
vary
Accept-Encoding
access-control-allow-origin
*
location
/turnstile/v0/g/54ea73d52131/api.js?onload=onloadTurnstileCallback
cache-control
max-age=300, public
cross-origin-resource-policy
cross-origin
cf-ray
8761dca3f96c1afe-AMS
alt-svc
h3=":443"; ma=86400
content-length
0
normal
challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/u4cjn/0x4AAAAAAAXdHkqtn1w2VJKV/auto/ Frame D663 		0
0 		Document
General
Check archive.org
Download Go to
Full URL
https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/g/turnstile/if/ov2/av0/rcv0/0/u4cjn/0x4AAAAAAAXdHkqtn1w2VJKV/auto/normal
Requested by
Host: challenges.cloudflare.com
URL: https://challenges.cloudflare.com/turnstile/v0/api.js?onload=onloadTurnstileCallback
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.17.3.184 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
Security Headers
Name Value
Content-Security-Policy frame-src https://challenges.cloudflare.com/ blob:; base-uri 'self'

Request headers

Accept-Language
nl-NL,nl;q=0.9;q=0.9
Referer
https://sylvesterlabs.net/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

accept-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
alt-svc
h3=":443"; ma=86400
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-ray
8761dca4a88e0a5c-AMS
content-encoding
br
content-security-policy
frame-src https://challenges.cloudflare.com/ blob:; base-uri 'self'
content-type
text/html; charset=UTF-8
critical-ch
Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy
require-corp
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
cross-origin
date
Thu, 18 Apr 2024 04:20:21 GMT
document-policy
js-profiling
origin-agent-cluster
?1
permissions-policy
accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
referrer-policy
same-origin
server
cloudflare
favicon.ico
sylvesterlabs.net/ 		35 KB
10 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://sylvesterlabs.net/favicon.ico
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
188.114.96.3 Amsterdam, Netherlands, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
9944444b5169a93ca8cbb75b9ff22b72b9cc59ca919c547211510dbd1b14300c

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://sylvesterlabs.net/
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 18 Apr 2024 04:20:22 GMT
content-encoding
br
cf-cache-status
BYPASS
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
alt-svc
h3=":443"; ma=86400
pragma
no-cache
server
cloudflare
x-ratelimit-remaining
999
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=gX5zad2PvHPZV08QQhR7wODcepRRx49KVYRYsxavGaP8ORRhnl%2FDQ9t47yjsx4rN5YQv7nBN2tjwijYnbUfF1GuLqz67OF%2F5GA9cnpb2r3Q0JxX0q%2FXQniNSvht7LW0QjxvOaA%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/html; charset=utf-8
vary
Accept-Encoding
cache-control
no-cache, no-store, must-revalidate
x-ratelimit-reset
1713414024
x-ratelimit-limit
1000
cf-ray
8761dca49f65b950-AMS
expires
0

Verdicts & Comments Add Verdict or Comment

3 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 function| onloadTurnstileCallback object| turnstile

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