URL: https://dctf.dfonect.com/
Submission: On March 04 via api from US — Scanned from US

Summary

This website contacted 1 IPs in 1 countries across 1 domains to perform 11 HTTP transactions. The main IP is 203.241.228.48, located in Korea, Republic Of and belongs to INJE-AS INJE UNIVERSITY, KR. The main domain is dctf.dfonect.com.
TLS certificate: Issued by R3 on March 3rd 2024. Valid for: 3 months.
This is the only time dctf.dfonect.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
11 203.241.228.48 9780 (INJE-AS I...)
11 1
Apex Domain
Subdomains
Transfer
11 dfonect.com
dctf.dfonect.com
2 MB
11 1
Domain Requested by
11 dctf.dfonect.com dctf.dfonect.com
11 1

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

Domain
ctfd.io
Subject Issuer Validity Valid
dctf.dfonect.com
R3
2024-03-03 -
2024-06-01
3 months crt.sh

This page contains 1 frames:

Primary Page: https://dctf.dfonect.com/
Frame ID: 076CC507F820E046DEC03CF4581FD6C2
Requests: 11 HTTP requests in this frame

Screenshot

Page Title

DCTF2024

Detected technologies

Overall confidence: 75%
Detected patterns
  • <[^>]+[^\w-]x-data[^\w-][^<]+

Page Statistics

11
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

2419 kB
Transfer

2421 kB
Size

1
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

11 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
dctf.dfonect.com/
6 KB
2 KB
Document
General
Full URL
https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
70d449be1106d89f2b3f9304a9cb7c506d2a83e0ee7485c525711ca4bef50d75
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
accept-language
en-US,en;q=0.9

Response headers

content-encoding
gzip
content-type
text/html; charset=utf-8
date
Mon, 04 Mar 2024 18:48:13 GMT
server
openresty
strict-transport-security
max-age=63072000;includeSubDomains; preload
x-served-by
dctf.dfonect.com
main.0aaf0d88.css
dctf.dfonect.com/themes/core-beta/static/assets/
258 KB
259 KB
Stylesheet
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
0aaf0d887382bd2b461c085cb96c6536866e76f4a83d6a956a8e77fa45389d8f

Request headers

accept-language
en-US,en;q=0.9
Referer
https://dctf.dfonect.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

expires
Tue, 05 Mar 2024 00:30:00 GMT
date
Mon, 04 Mar 2024 18:48:13 GMT
server
openresty
etag
"1708983567.0-264661-3160348167"
content-type
text/css; charset=utf-8
cache-control
max-age=20507
content-disposition
inline; filename=main.0aaf0d88.css
content-length
264661
x-served-by
dctf.dfonect.com
logov2.png
dctf.dfonect.com/files/mainpage/
2 MB
2 MB
Image
General
Full URL
https://dctf.dfonect.com/files/mainpage/logov2.png
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
5f4e74aa411da855e5f3e7c03459b0674c394fc51324f06fa77fb2f8f5843fe0

Request headers

accept-language
en-US,en;q=0.9
Referer
https://dctf.dfonect.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

expires
Tue, 05 Mar 2024 00:30:00 GMT
date
Mon, 04 Mar 2024 18:48:13 GMT
server
openresty
etag
"1709536316.121577-1804870-3335523340"
content-type
image/png
cache-control
max-age=20507
content-disposition
attachment; filename=logov2.png
content-length
1804870
x-served-by
dctf.dfonect.com
index.697f72c1.js
dctf.dfonect.com/themes/core-beta/static/assets/
207 KB
207 KB
Script
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/assets/index.697f72c1.js
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
b958a6853c069b248d2d6b1ecf2dd3958e7e9b8728be7a37b477bc75c5a66cf4

Request headers

Referer
https://dctf.dfonect.com/
Origin
https://dctf.dfonect.com
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

expires
Tue, 05 Mar 2024 00:30:00 GMT
date
Mon, 04 Mar 2024 18:48:13 GMT
server
openresty
etag
"1708983567.0-211695-3141473723"
content-type
application/javascript; charset=utf-8
cache-control
max-age=20507
content-disposition
inline; filename=index.697f72c1.js
content-length
211695
x-served-by
dctf.dfonect.com
page.e56ddd4d.js
dctf.dfonect.com/themes/core-beta/static/assets/
88 B
315 B
Script
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/assets/page.e56ddd4d.js
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
86d4e73d231c776b026b41b5129fede823d67570d846e8fb2a673aba74c9525b

Request headers

Referer
https://dctf.dfonect.com/
Origin
https://dctf.dfonect.com
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

expires
Tue, 05 Mar 2024 00:30:00 GMT
date
Mon, 04 Mar 2024 18:48:13 GMT
server
openresty
etag
"1708983567.0-88-2802390475"
content-type
application/javascript; charset=utf-8
cache-control
max-age=20507
content-disposition
inline; filename=page.e56ddd4d.js
content-length
88
x-served-by
dctf.dfonect.com
lato-latin-400-normal.woff2
dctf.dfonect.com/themes/core-beta/static/webfonts/
23 KB
23 KB
Font
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/webfonts/lato-latin-400-normal.woff2
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
918b7dc3e2e2d015c16ce08b57bcb64d2253bafc1707658f361e72865498e537
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Referer
https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Origin
https://dctf.dfonect.com
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
last-modified
Mon, 26 Feb 2024 21:39:27 GMT
server
openresty
etag
"1708983567.0-23580-3957988020"
content-type
application/octet-stream
cache-control
no-cache
content-disposition
inline; filename=lato-latin-400-normal.woff2
content-length
23580
x-served-by
dctf.dfonect.com
fa-solid-900.woff2
dctf.dfonect.com/themes/core-beta/static/webfonts/
124 KB
124 KB
Font
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/webfonts/fa-solid-900.woff2
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
1b099f88c06ed0869872561c157f0ec9cbe133a0939d9ece4ee1e1f54bd4683d
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Referer
https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Origin
https://dctf.dfonect.com
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
last-modified
Mon, 26 Feb 2024 21:39:27 GMT
server
openresty
etag
"1708983567.0-126828-75896605"
content-type
application/octet-stream
cache-control
no-cache
content-disposition
inline; filename=fa-solid-900.woff2
content-length
126828
x-served-by
dctf.dfonect.com
lato-latin-700-normal.woff2
dctf.dfonect.com/themes/core-beta/static/webfonts/
23 KB
23 KB
Font
General
Full URL
https://dctf.dfonect.com/themes/core-beta/static/webfonts/lato-latin-700-normal.woff2
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
c447dd7677b419db7b21dbdfc6277c7816a913ffda76fd2e52702df538de0e49
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Referer
https://dctf.dfonect.com/themes/core-beta/static/assets/main.0aaf0d88.css
Origin
https://dctf.dfonect.com
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
last-modified
Mon, 26 Feb 2024 21:39:27 GMT
server
openresty
etag
"1708983567.0-23040-3961133751"
content-type
application/octet-stream
cache-control
no-cache
content-disposition
inline; filename=lato-latin-700-normal.woff2
content-length
23040
x-served-by
dctf.dfonect.com
notification.webm
dctf.dfonect.com/themes/core/static/sounds/
13 KB
13 KB
XHR
General
Full URL
https://dctf.dfonect.com/themes/core/static/sounds/notification.webm
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/themes/core-beta/static/assets/index.697f72c1.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
fee895ba2d8ac31634cbf5658d71997af55e72909bd9b94b11ae0e807af1a389
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

accept-language
en-US,en;q=0.9
Referer
https://dctf.dfonect.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
last-modified
Mon, 26 Feb 2024 21:39:27 GMT
server
openresty
etag
"1708983567.0-13257-1580995969"
content-type
video/webm
cache-control
no-cache
content-disposition
inline; filename=notification.webm
content-length
13257
x-served-by
dctf.dfonect.com
notifications
dctf.dfonect.com/api/v1/
0
0
Fetch
General
Full URL
https://dctf.dfonect.com/api/v1/notifications?since_id=0
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/themes/core-beta/static/assets/index.697f72c1.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Accept
application/json
CSRF-Token
6a6757eb96932a02353ebbfbd8304db5f50e6d81888f8d2b908eee2a10ed5e63
Referer
https://dctf.dfonect.com/
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-Type
application/json

Response headers

content-type
text/html; charset=utf-8
date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
server
openresty
result-count
0
content-length
0
x-served-by
dctf.dfonect.com
events
dctf.dfonect.com/
5 KB
2 KB
EventSource
General
Full URL
https://dctf.dfonect.com/events
Requested by
Host: dctf.dfonect.com
URL: https://dctf.dfonect.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
203.241.228.48 , Korea, Republic Of, ASN9780 (INJE-AS INJE UNIVERSITY, KR),
Reverse DNS
Software
openresty /
Resource Hash
45b93cd93500b2c331cfe1c71c0f8920e212025c8351fb8ff4f6e8c812739e1d
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;includeSubDomains; preload

Request headers

Accept
text/event-stream
Cache-Control
no-cache
Referer
https://dctf.dfonect.com/
accept-language
en-US,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date
Mon, 04 Mar 2024 18:48:14 GMT
strict-transport-security
max-age=63072000;includeSubDomains; preload
content-encoding
gzip
server
openresty
content-type
text/html; charset=utf-8

Verdicts & Comments Add Verdict or Comment

9 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| init function| updateTimer function| HowlerGlobal object| Howler function| Howl function| Sound object| CTFd number| uidEvent object| Alpine

1 Cookies

Domain/Path Name / Value
dctf.dfonect.com/ Name: session
Value: 2235ef2c-9dad-4c48-8a46-dd65eccc812c.95_Uk5ike6yrcNONIzewHpN2nAk

2 Console Messages

Source Level URL
Text
other warning URL: https://dctf.dfonect.com/themes/core-beta/static/assets/index.697f72c1.js(Line 10)
Message:
The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://goo.gl/7K7WLu
network error URL: https://dctf.dfonect.com/events
Message:
Failed to load resource: the server responded with a status of 403 ()

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=63072000;includeSubDomains; preload