codeforces.com
#8,214 GlobalHow this site handles AI crawlers, chatbots, and training
Updated Feb 9, 2026Visit site
Last checked: 16h ago
codeforces.com blocks AI crawlers from OpenAI, Anthropic, Google, and Perplexity in its robots.txt. These restrictions are applied through Cloudflare's managed robots.txt template.
codeforces.com does not publish an llms.txt file. The site uses Content-Signal headers to opt out of AI training.
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