Enter a Reddit username and a subreddit to check whether that user has ever commented there. Powered by 30B+ archived Reddit data points.
Enter the username and the subreddit name above. The tool scans the user's archived comment history from the THINKPOL 30 billion post archive and returns matching comments with dates and samples, covering up to 1,000 of the most recent archived comments.
Yes. The archive preserves comments as they were captured, so activity is detected even if the user later deleted their comments or the subreddit removed them. To retrieve the content of specific removed items, use the deleted Reddit posts tool.
No. Checks run entirely against THINKPOL's EU-hosted, GDPR-compliant archive and never touch Reddit's servers, so no notification is generated. No Reddit account or signup is required.
Common uses include identity verification, moderation vetting, fraud investigations, and OSINT research. The same check is available programmatically through the THINKPOL API with sub-300ms response times; the free tool is rate-limited.
AI-generated behavioral profile from any Reddit username. Cross-subreddit activity, writing style, posting patterns and linked aliases.
10 years of keyword popularity across 30B+ archived posts. Surface emerging narratives before they reach the news.
Subscriber counts, activity stats and contributor breakdown for any subreddit. Understand a community at a glance.
Search 30B+ archived posts and comments, including deleted content. Boolean filters, date ranges, subreddit scope.
Recover a Reddit user's deleted and removed comments from the archive. Content preserved after it vanishes from the live platform.
The free tools query a slice of the archive. The API gives you all 30 billion posts and comments back to 2005, deleted content included, in under 300ms.
THINKPOL is an independent intelligence platform and is not affiliated with, endorsed by, or sponsored by Reddit Inc. "Reddit" is a registered trademark of Reddit Inc. Use is subject to our Terms of Service and Privacy Policy.