What codeforces.com is built with
Read on 2026-10-28 14:18. 14 technologies spotted.
| Technology | Category | Version | Confidence | Tell |
|---|---|---|---|---|
| Clipboard.js | JavaScript libraries | 100% | scriptSrc: rces.org/s/31542/js/clipboard.min.js | |
| Cloudflare | CDN | 100% | headers server: cloudflare | |
| Cloudflare Browser Insights | Analytics, RUM | 100% | scriptSrc: https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d8730179208 | |
| Cloudflare DNS | Hosting | 100% | dns NS: jean.ns.cloudflare.com | |
| Font Awesome | Font scripts | 31542 | 100% | dom link[href*='awesome'] @href: om/codeforces.org/s/31542/css/font-awesome.min.css |
| Google Analytics | Analytics | UA | 100% | scriptSrc: https://www.googletagmanager.com/gtag/js?id=UA-743380-5 |
| Google Tag Manager | Tag managers | 100% | scriptSrc: https://www.googletagmanager.com/gtag/js?id=UA-743380-5 | |
| HSTS | Security | 100% | headers strict-transport-security: max-age=86400 | |
| Java | Programming languages | 100% | cookies jsessionid: 1D27B1FB433B9566237929F61E748EA2 | |
| MathJax | JavaScript graphics | 100% | scriptSrc: thjax.codeforces.org/MathJax.js?config=TeX-AMS_HTML-full | |
| Open Graph | Miscellaneous | 100% | dom meta[property*='og:']: <meta property="og:image" content="https://codeforces.com/codeforces.org/s/31542/images/codeforces-telegram-square-1024x | |
| PWA | Miscellaneous | 100% | dom link[rel='manifest']: <link rel="manifest" href="/manifest.json"> | |
| SWFObject | Miscellaneous | 100% | scriptSrc: rces.org/s/31542/js/swfobject-2.2.min.js | |
| jQuery | JavaScript libraries | 1.8.3 | 100% | scriptSrc: rces.org/s/31542/js/jquery-1.8.3.js |
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