Summary
A Concise Overview of the scan result of url https://codeforces.com/enter?back=%2Fgroup%2FV2UavMqsbA%2Fcontest%2F487493%2Fproblem%2FA%2520%25D8%25AD%25D9%2584%25D9%2589%2520%25D8%25AF%25D9%258A%25D9%2587%2520%25D9%2583%25D8%25AF%25D9%2587%2520%25D9%2584%25D9%2588%2520%25D8%25AA%25D8%25B9%25D8%25B1%25D9%2581%25D9%2589
- Document
- HTML
- 6
- StyleSheets
- 24
- Scripts
- 42
- Font
- 1
- Images
- 10
- Links
- 2
- JavaScript Variables
- 70
- Console log messages
- 0
- Network
- Requests
- 93
- Bytes Transferred
- 762.61KB
- Bytes Total
- 2.43MB
- DNS Record
- A Record
- 3
- AAAA Record
- 3
- Technology
- JavaScript graphics
- 1
- JavaScript libraries
- 2
- Security
- 1
- Analytics
- 2
- RUM
- 1
- CDN
- 1
- Miscellaneous
- 1
Document
Links
The outgoing links identified from the page.
Link | Text |
---|---|
https://ton.org/ | |
http://ifmo.ru/en/ |
JavaScript Variables
Global JavaScript variables are variables that are defined outside of any function or block scope in JavaScript.
Technology
The technologies identified are present on the scanned URL.
Name | Description | Detected patterns |
---|---|---|
Analytics | ||
Google Analytics | Google Analytics is a free web analytics service that tracks and reports website traffic. | Type: scriptSrc Regex: googletagmanager\.com\/gtag\/js |
Cloudflare Browser Insights | Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users. | Type: scriptSrc Regex: static\.cloudflareinsights\.com\/beacon(?:\.min)?\.js |
Security | ||
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS. | Type: headers Name: strict-transport-security Regex: (?:) | |
Miscellaneous | ||
SWFObject is an open-source JavaScript library used to embed Adobe Flash content onto web pages. | Type: scriptSrc Regex: swfobject.{0,250}\.js | |
JavaScript graphics | ||
MathJax | MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup. | Type: scriptSrc Regex: ([\d.]{1,250})?\/mathjax\.js |
CDN | ||
Cloudflare | Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services. | Type: headers Name: cf-ray Regex: ^cloudflare$ |
JavaScript libraries | ||
jQuery | jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. | Type: scriptSrc Regex: jquery |
Clipboard.js | Type: scriptSrc Regex: clipboard(?:-([\d.]{1,250}))?(?:\.min)?\.js | |
RUM | ||
Cloudflare Browser Insights | Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users. | Type: scriptSrc Regex: static\.cloudflareinsights\.com\/beacon(?:\.min)?\.js |
Performance
The speed and efficiency of the scanned URL loads and displays its content.
- dns
- 1 msGood
- tcp
- 1 msGood
- requestTime
- 45 msGood
- dom
- 567 msPoor
DNS Record
A DNS record maps a domain name to an IP address or other resource information.
Type | Name | Content | DNSSEC |
---|---|---|---|
A | codeforces.com | 172.67.68.254 | no |
A | codeforces.com | 104.26.7.164 | no |
A | codeforces.com | 104.26.6.164 | no |
AAAA | codeforces.com | 2606:4700:20::ac43:44fe | no |
AAAA | codeforces.com | 2606:4700:20::681a:7a4 | no |
AAAA | codeforces.com | 2606:4700:20::681a:6a4 | no |
SSL Certificate
An SSL certificate is a digital certificate that verifies the authenticity and encrypts the communication between a website and its visitors.
Subject | Issue date | Expiry date | Valid |
---|---|---|---|
codeforces.com GTS CA 1P5 | 3/26/2024 | 6/24/2024 | 2 months 29 days |
*.google-analytics.com GTS CA 1C3 | 4/16/2024 | 7/9/2024 | 2 months 23 days |
codeforces.org Cloudflare Inc ECC CA-3 | 12/26/2023 | 12/25/2024 | 1 year |
upload.video.google.com GTS CA 1C3 | 4/16/2024 | 7/9/2024 | 2 months 23 days |
cloudflareinsights.com GTS CA 1P5 | 5/8/2024 | 8/6/2024 | 2 months 29 days |
*.gstatic.com GTS CA 1C3 | 4/16/2024 | 7/9/2024 | 2 months 23 days |
HTTP Headers
HTTP Header
An HTTP header is a component of an HTTP request or response that contains additional information about the message being sent or received.
Name | Value |
---|---|
cache-control | private,no-cache,no-store,max-age=0,must-revalidate |
cf-cache-status | DYNAMIC |
cf-ray | 884e891c5c2869e4-MAD |
content-type | text/html;charset=UTF-8 |
date | Thu, 16 May 2024 21:42:05 GMT |
expires | -1 |
location | https://codeforces.com/enter?back=%2Fgroup%2FV2UavMqsbA%2Fcontest%2F487493%2Fproblem%2FA%2520%25D8%25AD%25D9%2584%25D9%2589%2520%25D8%25AF%25D9%258A%25D9%2587%2520%25D9%2583%25D8%25AF%25D9%2587%2520%25D9%2584%25D9%2588%2520%25D8%25AA%25D8%25B9%25D8%25B1%25D9%2581%25D9%2589 |
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=VtX5vEoKdZiGRFvuA1lxZz6YTbyC%2Fym3FoLzaGQVyq%2F3u17nG492X%2BbP4Gi%2FKluLp5HSxwHHKLjgHjep48sx2HL%2FR5o6ftuIgujFFfuXN7Cpt1pVLviUeylb%2BhanO%2FrTdVcKOd9qmbBwWLz2"}],"group":"cf-nel","max_age":604800} |
server | cloudflare |
strict-transport-security | max-age=86400 |
x-content-type-options | nosniff |
x-frame-options | sameorigin |
x-xss-protection | 1; mode=block |
Content Security Policy
Content Security Policy (CSP) is a security mechanism that helps prevent cross-site scripting (XSS) and other code injection attacks by specifying which content sources are allowed to be loaded on a web page.
Name | Value |
---|
Cookies
Cookies are small pieces of data stored on a user's web browser to track and remember information about their browsing activity on a website.
Name | Value | Domain/Path | Expires | Secure | HTTP Only |
---|---|---|---|---|---|
JSESSIONID | [JSESSIONID redacted] | codeforces.com/ | 12/31/1969, 11:59:59 PM | no | yes |
39ce7 | CFkavaXO | codeforces.com/ | 5/28/2024, 11:28:45 AM | no | no |
_gid | GA1.2.284933364.1715895727 | .codeforces.com/ | 5/17/2024, 9:42:06 PM | no | no |
_gat_gtag_UA_743380_5 | 1 | .codeforces.com/ | 5/16/2024, 9:43:06 PM | no | no |
_ga_K230KVN22K | GS1.1.1715895726.1.0.1715895726.0.0.0 | .codeforces.com/ | 6/20/2025, 9:42:06 PM | no | no |
_ga | GA1.1.746144951.1715895727 | .codeforces.com/ | 6/20/2025, 9:42:06 PM | no | no |
evercookie_etag | undefined | .codeforces.com/ | 6/20/2025, 9:42:07 PM | no | no |
evercookie_cache | undefined | .codeforces.com/ | 6/20/2025, 9:42:07 PM | no | no |
cf_clearance | ZO43EF3La.0KWjzc3LBJRR7Pe3I0WFNEz_wy2BE.na0-1715895727-1.0.1.1-08Z2jlffh8gvY6pOBk1D4gTfzujvyg6SXoe4rqMfaq9vAPZZZ_IKme2OIUCruULLGawxyCSSsudu_EH2S0Ai7w | .codeforces.com/ | 5/16/2025, 9:42:07 PM | yes | yes |