ctf.klog.co Open in urlscan Pro
2606:4700:20::681a:f75 Public Scan

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URL:
https://ctf.klog.co/
Submission: On December 16 via api (December 16th 2024, 11:48:07 pm UTC) from US — Scanned from DE

Summary HTTP 19 Redirects Links 4 Behaviour Indicators

Summary

This website contacted 3 IPs in 1 countries across 2 domains to perform 19 HTTP transactions. The main IP is 2606:4700:20::681a:f75, located in United States and belongs to CLOUDFLARENET, US. The main domain is ctf.klog.co.
TLS certificate: Issued by WE1 on December 16th 2024. Valid for: 3 months.

This is the only time ctf.klog.co was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1	2606:4700:20:... 2606:4700:20::681a:f75	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1 18	172.67.73.247 172.67.73.247	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2606:4700::68... 2606:4700::6810:4f49	13335 (CLOUDFLAR...) (CLOUDFLARENET)
19	3

1 2606:4700:20::681a:f75 (United States)

ASN13335 (CLOUDFLARENET, US)

ctf.klog.co	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

18 172.67.73.247 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

ctf.klog.co	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6810:4f49 (United States)

ASN13335 (CLOUDFLARENET, US)

static.cloudflareinsights.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
19	klog.co 1 redirects ctf.klog.co	520 KB
1	cloudflareinsights.com static.cloudflareinsights.com — Cisco Umbrella Rank: 617	7 KB
19	2

	Domain	Requested by
19	ctf.klog.co	1 redirects ctf.klog.co static.cloudflareinsights.com
1	static.cloudflareinsights.com	ctf.klog.co
19	2

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

Domain
ctfd.io
twitter.com
facebook.com
github.com

Subject Issuer	Validity	Valid
ctf.klog.co WE1	`2024-12-16` - `2025-03-16`	3 months	crt.sh
cloudflareinsights.com WE1	`2024-11-01` - `2025-01-30`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://ctf.klog.co/
Frame ID: 2B228B209149C16FEAF368C37F82A61D
Requests: 17 HTTP requests in this frame

Frame: https://ctf.klog.co/cdn-cgi/challenge-platform/h/g/scripts/jsd/f9063374b04d/main.js
Frame ID: 0BA172D1FC4CAFBF5659184825B175FE
Requests: 2 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Klog first CTF Cute

Detected technologies

Alpine.js (JavaScript frameworks) Expand

Overall confidence: 75%
Detected patterns

<[^>]+[^\w-]x-data[^\w-][^<]+

Cloudflare Browser Insights (Analytics) Expand

Overall confidence: 100%
Detected patterns

static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Page Statistics

19
Requests

95 %
HTTPS

67 %
IPv6

2
Domains

2
Subdomains

3
IPs

1
Countries

526 kB
Transfer

964 kB
Size

2
Cookies

4 Outgoing links

These are links going to different origins than the main page.

URL: https://ctfd.io/
Title: ctfd.io

Search URL Search Domain Scan URL

URL: https://twitter.com/ctfdio

Search URL Search Domain Scan URL

URL: https://facebook.com/ctfdio

Search URL Search Domain Scan URL

URL: https://github.com/ctfd

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 13

https://ctf.klog.co/cdn-cgi/challenge-platform/scripts/jsd/main.js HTTP 302
https://ctf.klog.co/cdn-cgi/challenge-platform/h/g/scripts/jsd/f9063374b04d/main.js

19 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2 200 Primary Request / Show response
ctf.klog.co/ 9 KB
4 KB 505ms
469ms Document
text/html 2606:4700:20::681a:f75
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://ctf.klog.co/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:20::681a:f75 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 336107f2d7fcf11830185b5403a638b9f288b9cf1457283555f396b7f7f6207a

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Response headers

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 8f328fdabeecdba9-FRA
content-encoding: br
content-type: text/html; charset=utf-8
cross-origin-opener-policy: same-origin-allow-popups
date: Mon, 16 Dec 2024 23:48:02 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=MJ0H1A7VPiYHQh9xPH5ti9pckOHZryVERrVjVzPa8qYelUi%2Fg2Oh3vM%2FzcFNg77hQnJnufHsiVi%2BFMsRtlhtvI9G4DCZbVWkBYS0cGxVbMqopAuqiNu7TYhdm%2BQkAK2fyox14ulBSAsg"}],"group":"cf-nel","max_age":604800}
server: cloudflare
server-timing: cfCacheStatus;desc="DYNAMIC" cfL4;desc="?proto=TCP&rtt=5812&min_rtt=5781&rtt_var=959&sent=8&recv=11&lost=0&retrans=0&sent_bytes=4359&recv_bytes=2278&delivery_rate=683916&cwnd=253&unsent_bytes=0&cid=e98e18a9e1f01ef0&ts=473&x=0"
vary: Accept-Encoding

GET
H3 200 main.0c7144ba.css
ctf.klog.co/themes/core-beta/static/assets/ 337 KB
57 KB 170ms
170ms Stylesheet
text/css 172.67.73.247
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 0c7144baf688adf9c4eb13685482bc333b4e46bcf74a378ad03a89887f4b31a9

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

content-encoding: br
cf-cache-status: HIT
etag: W/"1734375530.9225671-345074-3113031121"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=6jayNBVppASS2foH23ceMiZoV4vlurLwyRQvV2yJEmhmSJmFszkCPMKTVd7eZ7%2FilWGXgxbcE0Isftlfi5oCsHL0KGNGReQzqQrHOFpfeSzq8KqObzvHT7ITtyHz"}],"group":"cf-nel","max_age":604800}
expires: Mon, 16 Dec 2024 23:49:19 GMT
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=24829&min_rtt=24180&rtt_var=4419&sent=22&recv=15&lost=0&retrans=0&sent_bytes=15984&recv_bytes=6462&delivery_rate=568&cwnd=12000&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=615&x=1", cfExtPri, cfHdrFlush;dur=20
date: Mon, 16 Dec 2024 23:48:02 GMT
content-type: text/css; charset=utf-8
content-disposition: inline; filename=main.0c7144ba.css
vary: Accept-Encoding
last-modified: Mon, 16 Dec 2024 18:58:50 GMT
priority: u=0,i=?0
cache-control: public, max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba11965-FRA
server: cloudflare

GET
H3 200 color_mode_switcher.52334129.js Show response
ctf.klog.co/themes/core-beta/static/assets/ 779 B
1 KB 330ms
329ms Script
application/javascript 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/assets/color_mode_switcher.52334129.js
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 0d090af10a39efabf2f4eac35d9cccb19252b27181c59a6c60d74f30ecaafa77

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

content-encoding: br
cf-cache-status: HIT
etag: W/"1734375530.914567-779-744954658"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=NSvWrcOmgh2oD8VXEVgwjHpsPTUrRtJN64Jw4WU3%2FuvRQcIAWdzFhS941Nmt1uJ7hGJZnNWoI6NUyiOrI1KU51Pbh9%2BsJgBXxCtvayOsZplt2pzphYABPVl9A%2BLN"}],"group":"cf-nel","max_age":604800}
expires: Mon, 16 Dec 2024 23:49:19 GMT
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=24872&min_rtt=23937&rtt_var=367&sent=186&recv=71&lost=0&retrans=0&sent_bytes=210186&recv_bytes=8918&delivery_rate=3155652&cwnd=97200&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=794&x=1", cfExtPri, cfHdrFlush;dur=0
date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: application/javascript; charset=utf-8
content-disposition: inline; filename=color_mode_switcher.52334129.js
vary: Accept-Encoding
last-modified: Mon, 16 Dec 2024 18:58:50 GMT
priority: u=1,i=?0
cache-control: public, max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba21965-FRA
server: cloudflare

GET
H3 200 android-chrome-256x256.png
ctf.klog.co/files/756c99293d3cd0b6d178a093cd75b9c6/ 10 KB
10 KB 145ms
144ms Image
image/webp 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://ctf.klog.co/files/756c99293d3cd0b6d178a093cd75b9c6/android-chrome-256x256.png
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: cc483c4b4567bc0f25259cf0202ab270a0bf0a76650ebb4f7793e75f585c33c4

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

cf-bgj: imgq:85,h2pri
etag: "1734378307.1081064-17543-893916799"
cf-cache-status: HIT
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=4Vl%2BgNPmtwntDoIRl1JzqKpMJiOUbbCVQyPd8DI208SH9PIG4%2FyxvjaxfwlwGFkUmbFXPg2a4lI3VAusg1AuZDnWGNm%2BKEqcViu%2BNjkT8cU%2Bj%2BHkM3GlSwtSDoNp"}],"group":"cf-nel","max_age":604800}
cf-polished: origFmt=png, origSize=17543
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=24829&min_rtt=24180&rtt_var=4419&sent=13&recv=15&lost=0&retrans=0&sent_bytes=5209&recv_bytes=6462&delivery_rate=568&cwnd=12000&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=607&x=1", cfExtPri, cfHdrFlush;dur=0
date: Mon, 16 Dec 2024 23:48:02 GMT
last-modified: Mon, 16 Dec 2024 19:45:07 GMT
content-type: image/webp
vary: Accept
content-disposition: inline; filename="android-chrome-256x256.webp"
priority: u=2,i
cache-control: max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba31965-FRA
accept-ranges: bytes
content-length: 9758
server: cloudflare

GET
H3 200 dancing-cow.gif
ctf.klog.co/files/e00a0b6ce9858790e43a4395d46d83ed/ 61 KB
62 KB 246ms
246ms Image
image/webp 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://ctf.klog.co/files/e00a0b6ce9858790e43a4395d46d83ed/dancing-cow.gif
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 39c68d75b457c481c3097fb0dc751698a730de7402fac846146508555746be32

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

cf-bgj: imgq:85,h2pri
etag: "1734378307.4361074-68876-1349784392"
cf-cache-status: REVALIDATED
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=BieoIhV1VZQhmew7lAPULSFk82KWleGQa25H6U%2B47RChkX57%2F8pnsvNeYY24bTwBmvfw%2BSvfqZOLJyrji8cDM5HBL8CyYT4gvYfIiHmCuRSySRZSuf37UAwqE1bs"}],"group":"cf-nel","max_age":604800}
cf-polished: origFmt=gif, origSize=68876
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=24829&min_rtt=24180&rtt_var=4419&sent=22&recv=15&lost=0&retrans=0&sent_bytes=15984&recv_bytes=6462&delivery_rate=568&cwnd=12000&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=625&x=1", cfExtPri, cfHdrFlush;dur=10
date: Mon, 16 Dec 2024 23:48:02 GMT
last-modified: Mon, 16 Dec 2024 19:45:07 GMT
content-type: image/webp
vary: Accept
content-disposition: inline; filename="dancing-cow.webp"
priority: u=2,i
cache-control: max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba41965-FRA
accept-ranges: bytes
content-length: 62520
server: cloudflare

GET
H3 200 index.2e31e3b8.js Show response
ctf.klog.co/themes/core-beta/static/assets/ 209 KB
67 KB 221ms
221ms Script
application/javascript 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/assets/index.2e31e3b8.js
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 32264edc30e0922d8bcbb2486a40d1764d0daf86bd4211a4093b30b8cf3fcbe0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/

Response headers

content-encoding: br
cf-cache-status: HIT
etag: W/"1734375530.9185672-213673-3160282591"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=v4zFKPsFnPiKZ107Ezp0loEVSUUEmQ8QGlxdqEpjBer5JQnvgEaDTvsERzepoGZBeQGJC4%2BhesIfnvku85VzIRhGZsFm6uFBN2hW%2B5pxoVAzcLOb2BmDxoXEKLKM"}],"group":"cf-nel","max_age":604800}
expires: Mon, 16 Dec 2024 23:49:19 GMT
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=27202&min_rtt=24180&rtt_var=3746&sent=32&recv=20&lost=0&retrans=0&sent_bytes=27984&recv_bytes=6677&delivery_rate=84477&cwnd=12000&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=637&x=1", cfExtPri, cfHdrFlush;dur=24
date: Mon, 16 Dec 2024 23:48:02 GMT
content-type: application/javascript; charset=utf-8
content-disposition: inline; filename=index.2e31e3b8.js
vary: Accept-Encoding
last-modified: Mon, 16 Dec 2024 18:58:50 GMT
priority: u=1,i=?0
cache-control: public, max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba51965-FRA
server: cloudflare

GET
H3 200 page.3c5083de.js Show response
ctf.klog.co/themes/core-beta/static/assets/ 88 B
917 B 142ms
141ms Script
application/javascript 172.67.73.247
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/assets/page.3c5083de.js
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: c4c35d3ec2c5890c371c397788a601813647cfb1d22a7cae684ed69b60373859

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/

Response headers

content-encoding: br
cf-cache-status: HIT
etag: W/"1734375530.9225671-88-2745177446"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=AJHoyroAprtPrXH6Z4G5q%2FZ0VHP8xU1jQpzeCIr8alqeqn3GWSGCL6QIgMC5NVxBwsVM%2F1HRDMftSi5aWNpzCzmjW1KXLWjoxCoHO0iVpquq0o1Rtc8LdXew46Lq"}],"group":"cf-nel","max_age":604800}
expires: Mon, 16 Dec 2024 23:49:19 GMT
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=24829&min_rtt=24180&rtt_var=4419&sent=12&recv=15&lost=0&retrans=0&sent_bytes=4269&recv_bytes=6462&delivery_rate=568&cwnd=12000&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=605&x=1", cfExtPri, cfHdrFlush;dur=0
date: Mon, 16 Dec 2024 23:48:02 GMT
content-type: application/javascript; charset=utf-8
content-disposition: inline; filename=page.3c5083de.js
vary: Accept-Encoding
last-modified: Mon, 16 Dec 2024 18:58:50 GMT
priority: u=1,i=?0
cache-control: public, max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fddbba61965-FRA
server: cloudflare

GET
H2 200 vcd15cbe7772f49c399c6a5babf22c1241717689176015 Show response
static.cloudflareinsights.com/beacon.min.js/ 19 KB
7 KB 91ms
41ms Script
text/javascript 2606:4700::6810:4f49
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6810:4f49 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 8a18d13015336bc184819a5a768447462202ef3105ec511bf42ed8304a7ed94f

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/

Response headers

cache-control: public, max-age=86400
content-encoding: gzip
etag: W/"2024.6.1"
cross-origin-resource-policy: cross-origin
cf-ray: 8f328fdfba609767-FRA
access-control-allow-origin: *
date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: text/javascript;charset=UTF-8
last-modified: Thu, 06 Jun 2024 15:52:56 GMT
vary: Accept-Encoding
server: cloudflare

GET
H3 200 lato-latin-400-normal.woff2
ctf.klog.co/themes/core-beta/static/webfonts/ 23 KB
24 KB 169ms
169ms Font
application/octet-stream 172.67.73.247
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/webfonts/lato-latin-400-normal.woff2
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 918b7dc3e2e2d015c16ce08b57bcb64d2253bafc1707658f361e72865498e537

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css

Response headers

cf-cache-status: HIT
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report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=gYcMBUM1iWdnkA%2BXCjElyhEDqV4K1mtTRHYaROO2Rmx2pUJHb2n%2BYp7DpEFmOdAfU1bqWJuFWrKW3E6hxlv%2FSF0gcArEy3kfxzZiNtFt0wsx0VUfDvulGeSWH3LL"}],"group":"cf-nel","max_age":604800}
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date: Mon, 16 Dec 2024 23:48:03 GMT
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cross-origin-opener-policy: same-origin-allow-popups
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content-length: 23580
server: cloudflare

GET
H3 200 fa-solid-900.woff2
ctf.klog.co/themes/core-beta/static/webfonts/ 153 KB
154 KB 196ms
196ms Font
application/octet-stream 172.67.73.247
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://ctf.klog.co/themes/core-beta/static/webfonts/fa-solid-900.woff2
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 9fc85f3a4544ab0d570c7f8f9bbb88db8d92c359b2707580ea8b07c75673eae2

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css

Response headers

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date: Mon, 16 Dec 2024 23:48:03 GMT
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vary: Accept-Encoding
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cache-control: public, max-age=14400
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cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fdfdcf71965-FRA
accept-ranges: bytes
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server: cloudflare

GET
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ctf.klog.co/themes/core-beta/static/webfonts/ 115 KB
115 KB 145ms
145ms Font
application/octet-stream 172.67.73.247
CLOUDFLARENET

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Full URL: https://ctf.klog.co/themes/core-beta/static/webfonts/fa-brands-400.woff2
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 3a8924cd5203a28628716aedb5cef0943da4c3b44e3ffcee90ab06387b41c490

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Origin: https://ctf.klog.co
Referer: https://ctf.klog.co/themes/core-beta/static/assets/main.0c7144ba.css

Response headers

cf-cache-status: HIT
etag: "1734375530.9225671-117372-475207543"
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=v%2BSw1ueZn6Va5shHGC2tvhllJjPmfalRt5K%2BppNOM4p6jvBuSjrEZ73X%2BxGA8FvCcWWCyQkex8tJJUnym3jUJ3R3YqaCM1fSfkRSdmNl1DtKWpEzWK8V3rLnDdYs"}],"group":"cf-nel","max_age":604800}
expires: Mon, 16 Dec 2024 23:49:20 GMT
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date: Mon, 16 Dec 2024 23:48:03 GMT
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vary: Accept-Encoding
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priority: u=0,i=?0
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cross-origin-opener-policy: same-origin-allow-popups
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accept-ranges: bytes
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server: cloudflare

GET
H3 200 notification.webm Show response
ctf.klog.co/themes/core/static/sounds/ 13 KB
14 KB 166ms
166ms XHR
video/webm 172.67.73.247
CLOUDFLARENET

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Full URL: https://ctf.klog.co/themes/core/static/sounds/notification.webm
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/themes/core-beta/static/assets/index.2e31e3b8.js
Protocol: H3
Security: QUIC, , AES_128_GCM
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Software: cloudflare /
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Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

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date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: video/webm
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priority: u=1,i
cache-control: public, max-age=14400
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cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fdfecfd1965-FRA
accept-ranges: bytes
content-length: 13257
server: cloudflare

HEAD
H3 200 notifications
ctf.klog.co/api/v1/ 0
0 331ms
331ms Fetch
text/html 172.67.73.247
CLOUDFLARENET

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Full URL: https://ctf.klog.co/api/v1/notifications?since_id=0
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/themes/core-beta/static/assets/index.2e31e3b8.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash

Request headers

Referer: https://ctf.klog.co/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Accept: application/json
Content-Type: application/json
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Response headers

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date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: text/html; charset=utf-8
result-count: 0
server: cloudflare
priority: u=1,i

GET
H3 403 events
ctf.klog.co/ 0
0 343ms
343ms EventSource
text/html 172.67.73.247
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://ctf.klog.co/events
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash

Request headers

Cache-Control: no-cache
Referer: https://ctf.klog.co/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Accept: text/event-stream

Response headers

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cf-cache-status: DYNAMIC
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date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: text/html; charset=utf-8
server: cloudflare
priority: u=1,i

GET
H3

200

main.js Show response
ctf.klog.co/cdn-cgi/challenge-platform/h/g/scripts/jsd/f9063374b04d/ Frame 0BA1
Redirect Chain

https://ctf.klog.co/cdn-cgi/challenge-platform/scripts/jsd/main.js
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9 KB
5 KB

38ms
38ms

Script
application/javascript

172.67.73.247
CLOUDFLARENET

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Full URL

https://ctf.klog.co/cdn-cgi/challenge-platform/h/g/scripts/jsd/f9063374b04d/main.js?

Requested by

Host: ctf.klog.co
URL: https://ctf.klog.co/

Protocol

Server

172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
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Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer

Response headers

cache-control: max-age=14400, stale-if-error=10800, stale-while-revalidate=10800, public
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date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: application/javascript; charset=UTF-8
vary: Accept-Encoding
server: cloudflare
priority: u=3,i=?0

Redirect headers

cache-control: max-age=300, stale-if-error=10800, stale-while-revalidate=10800, public
location: /cdn-cgi/challenge-platform/h/g/scripts/jsd/f9063374b04d/main.js?
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date: Mon, 16 Dec 2024 23:48:03 GMT
vary: Accept-Encoding
server: cloudflare
priority: u=3,i=?0

GET
H3 200 s.js Show response
ctf.klog.co/cdn-cgi/zaraz/ 5 KB
3 KB 57ms
57ms Script
text/javascript 172.67.73.247
CLOUDFLARENET

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Full URL: https://ctf.klog.co/cdn-cgi/zaraz/s.js?z=JTdCJTIyZXhlY3V0ZWQlMjIlM0ElNUIlNUQlMkMlMjJ0JTIyJTNBJTIyS2xvZyUyMGZpcnN0JTIwQ1RGJTIwQ3V0ZSUyMiUyQyUyMnglMjIlM0EwLjY1NjU2MjM3NjAyNjc0OTYlMkMlMjJ3JTIyJTNBMTYwMCUyQyUyMmglMjIlM0ExMjAwJTJDJTIyaiUyMiUzQTEyMDAlMkMlMjJlJTIyJTNBMTYwMCUyQyUyMmwlMjIlM0ElMjJodHRwcyUzQSUyRiUyRmN0Zi5rbG9nLmNvJTJGJTIyJTJDJTIyciUyMiUzQSUyMiUyMiUyQyUyMmslMjIlM0EyNCUyQyUyMm4lMjIlM0ElMjJVVEYtOCUyMiUyQyUyMm8lMjIlM0EtNjAlMkMlMjJxJTIyJTNBJTVCJTVEJTdE
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 675dcc50a4ad50fb76ab35fc4f230bfa41a1b577d2dd349f1da938cfa65b6245

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

x-robots-tag: none
access-control-max-age: 600
content-encoding: br
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=2QLH0kPYahOZCH%2B3kWf%2B%2FoI%2Bk99sjlONC3wzKdbi9e%2B3mYb17EzyQt8zou%2BnEPZKgcCQTwZiB9GJnM0NGXUhDiB31VCOM%2FyMouqA%2BLwY1760tdyekvXEGqZFUUdM"}],"group":"cf-nel","max_age":604800}
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date: Mon, 16 Dec 2024 23:48:03 GMT
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cf-ray: 8f328fdffd101965-FRA
access-control-allow-origin: https://ctf.klog.co
server: cloudflare

POST
H3 200 8f328fdabeecdba9 Show response
ctf.klog.co/cdn-cgi/challenge-platform/h/g/jsd/r/ Frame 0BA1 0
1 KB 42ms
36ms XHR
text/plain 172.67.73.247
CLOUDFLARENET

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Full URL: https://ctf.klog.co/cdn-cgi/challenge-platform/h/g/jsd/r/8f328fdabeecdba9
Requested by: Host: ctf.klog.co
URL: https://ctf.klog.co/cdn-cgi/challenge-platform/scripts/jsd/main.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
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Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Content-Type: application/json
Referer

Response headers

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content-length: 0
date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: text/plain; charset=UTF-8
server: cloudflare
priority: u=1,i

POST
H3 204 rum Show response
ctf.klog.co/cdn-cgi/ 0
138 B 35ms
34ms XHR
text/plain 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://ctf.klog.co/cdn-cgi/rum?

Requested by

Host: static.cloudflareinsights.com
URL: https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015

Protocol

Security

QUIC, , AES_128_GCM

Server

172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Frame-Options	DENY

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
content-type: application/json
Referer: https://ctf.klog.co/

Response headers

access-control-max-age: 86400
access-control-allow-credentials: true
access-control-allow-methods: POST,OPTIONS
x-content-type-options: nosniff
cf-ray: 8f328fe16de71965-FRA
access-control-allow-origin: https://ctf.klog.co
date: Mon, 16 Dec 2024 23:48:03 GMT
vary: Origin
server: cloudflare
x-frame-options: DENY

GET
H3 200 favicon-16x16.png
ctf.klog.co/files/992bbc740c7150226daa0daa6636384b/ 716 B
1 KB 184ms
184ms Other
image/png 172.67.73.247
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://ctf.klog.co/files/992bbc740c7150226daa0daa6636384b/favicon-16x16.png
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 172.67.73.247 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: d716ed464a85227c1b51068e87595091473721a39f725eaad37e4a17fe5139c1

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Referer: https://ctf.klog.co/

Response headers

cf-bgj: imgq:85,h2pri
etag: "1734378307.1201065-910-1898779468"
cf-cache-status: HIT
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=W8dG3ynqstEjt5cbmuERW8FlOSgE1yKhd%2FhAypS%2Fuzju52PtUwCu8jmyEdex%2BzSluW5zhxI3GtTSrcD%2FfyQw%2F9LiFBO2IhbPm8N2yWo%2FZGFV3qqPsqsZ5OBHnTP2"}],"group":"cf-nel","max_age":604800}
cf-polished: origSize=910, status=webp_bigger
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=QUIC&rtt=28756&min_rtt=23702&rtt_var=4173&sent=486&recv=137&lost=1&retrans=1&sent_bytes=546017&recv_bytes=34905&delivery_rate=59780&cwnd=125999&unsent_bytes=0&cid=f4cf453bc1ee85bd&ts=1202&x=1", cfExtPri, cfHdrFlush;dur=0
date: Mon, 16 Dec 2024 23:48:03 GMT
content-type: image/png
content-disposition: attachment; filename=favicon-16x16.png
vary: Accept-Encoding
last-modified: Mon, 16 Dec 2024 19:45:07 GMT
priority: u=1,i
cache-control: max-age=14400
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cross-origin-opener-policy: same-origin-allow-popups
cf-ray: 8f328fe17de81965-FRA
accept-ranges: bytes
content-length: 716
server: cloudflare

Verdicts & Comments Add Verdict or Comment

15 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.

2 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

			Domain/Path	Expires	Name / Value
			ctf.klog.co/	1969-12-31 23:59:59	Name: session Value: f1a1e749-eee8-4200-8336-43ea09e3f22b.9k21A5doIQRb4Sa7Ev7vaxCkOyU
			.klog.co/	1970-01-21 10:32:08	Name: cf_clearance Value: bSQQnghb1MRXkHUHOPZzcD.x3.__KfrIKEDNp3GM6Vk-1734392883-1.2.1.1-0S4AeLww9Xz1UjPvf0L7LWKhJpcv1tOpnjc5fLc_H4A.g9Hebd.zbVzQBp7QFKC7CIvyIk.pDY8Qvw2ufc6ThCH_iMAjmvFO6aVtPFYZa8Mt8w9TsSRHcZa_9bhfoO4cjwKn2fzLai1rUZuwgWjqFKzVMWNdhjIxsp2Sb1A8gspCjlIOgBI8xmnle685RCEFwkSqR96an.puhYO.zXwKJFFMFGOslSB_1ouo1sJHzflsicopr3puEHP_9O6isng_0p6KMEA_0HH_klWzcOFBCzOzhE6tIt7i7hSmY28sNCwNFMwB3Gf.5HtK01QnPPlNcnpV0NkI3W4lcpDWuQtes8JDumi3d78giEFbsnDK1j6FAB8ctPio84xJJYoiOu7.

1 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
network	error	URL: https://ctf.klog.co/events Message: Failed to load resource: the server responded with a status of 403 ()

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.

ctf.klog.co
static.cloudflareinsights.com
172.67.73.247
2606:4700:20::681a:f75
2606:4700::6810:4f49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ctf.klog.co Open in urlscan Pro 2606:4700:20::681a:f75 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Detected technologies

Page Statistics

19 Requests

95 %HTTPS

67 %IPv6

2 Domains

2 Subdomains

3 IPs

1 Countries

526 kBTransfer

964 kBSize

2 Cookies

4 Outgoing links

Redirected requests

19 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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Verdicts & Comments Add Verdict or Comment

15 JavaScript Global Variables

2 Cookies

1 Console Messages

Indicators

ctf.klog.co Open in urlscan Pro
2606:4700:20::681a:f75 Public Scan

Screenshot
Live screenshot

Full Image

19
Requests

95 %
HTTPS

67 %
IPv6

2
Domains

2
Subdomains

3
IPs

1
Countries

526 kB
Transfer

964 kB
Size

2
Cookies

19 HTTP transactions
0 data transactions