What powers ioccc.org?
Last seen Jun 2026 · 4 technologies across 4 categories
Caching
Varnish
since Jan 2021
CDN
Fastly
since Jan 2021
Font scripts
Google Font API
since Jan 2025
PaaS
GitHub Pages
since Jan 2021
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| obfuscated c contest | #1 | 120 |
| obfuscated c code contest | #1 | 120 |
| ioccc | #1 | 97 |
| obfuscated c contest | #3 | 38 |
| obfuscated code contest | #1 | 12 |
| obfuscated c code | #1 | 12 |
| do not fold spindle or mutilate | #6 | 11 |
| obfuscation contest | #1 | 9 |
| c obfuscation contest | #2 | 6 |
| bad c | #11 | 3 |
| obfuscation contest | #3 | 3 |
| c challenge | #5 | 2 |
| programming contest | #41 | 2 |
| iocc | #35 | 2 |
| do not fold spindle or mutilate meaning | #4 | 2 |
| c international | #39 | 1 |
| morgan1 | #18 | 1 |
| obfuscated c contest | #83 | 1 |
| obfuscated c contest | #81 | 1 |
| obfuscated c contest | #51 | 1 |
| obfuscated c contest | #41 | 1 |
| obfuscated c contest | #27 | 1 |
| international contests | #47 | 1 |
| wolfenstein 1994 | #37 | 0 |
| wolfenstein 1990 | #47 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 66% phone
- 31% desktop
- 3% tablet
United States
India
Japan
Germany
United Kingdom
Brazil
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.28 / 10 · ranked #29,159 of all domains
464 referring domains · OpenPageRank
Search traffic
450 est. monthly organic visits (US)
69 keywords in Google's top 30
Core Web Vitals
| LCP | 0.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 0.1 MB · 18 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.ioccc.org | 4 |
| ioccc.org | 3 |