Site History
Track how codeforces.com's technology stack and AI policy have changed over time
📍
Feb 9, 2026, 11:48 AMPolicy SnapshotLatest
CLOSED16 AI bots blocked (9 training)
robots.txt
Policy changes:
Started blocking:
Meta External AgentOmgilibot
Stopped blocking:
meta-externalagentomgilibot
📍
Feb 9, 2026, 11:48 AMTech ScanLatest
View Details16 technologies detected
📦
Feb 8, 2026, 06:31 AMTech Scan
View Details16 technologies detected
📦
🛡️
Jan 29, 2026, 09:09 AMPolicy Snapshot
CLOSED16 AI bots blocked (9 training)
robots.txt
First recorded policy snapshot
Summary
3
Tech Scans
2
Policy Snapshots
16
Current Techs
0
Techs Added (All Time)