AtCoder Username Search
codingPublic profile detection specification and footprint signals
Profile URL Pattern
https://atcoder.jp/users/{account}The target username is substituted for the {account} parameter during automated public HTTP evaluation.
Detection Logic & Fingerprint
Checks AtCoder public profile URLs by verifying HTTP response status and unique platform profile indicators.
Confidence Tier:high
False Positives & Limitations
False positives can occur if the platform shows a generic landing page or CAPTCHA challenge instead of a proper 404 status.
Manual Verification Instructions
Always visit the live URL manually on AtCoder to inspect profile activity and bio markers before drawing conclusions.
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