Crawler IP checker

Use this crawler IP checker to compare up to 50 addresses with published bot ranges. Paste IPs or a log excerpt, then review the operator matches.

A crawler IP checker compares a request address with ranges published by the crawler operator. Paste up to 50 addresses or a log excerpt to check both IP families. A match identifies a published network range, not the exact bot or its intent. Read the source and refresh date before trusting the result.

Up to 50 distinct IPs. This text is sent to the checker API. Remove private details from logs.

Coverage and verification limits

Documentation reviewed on 11 October 2026. This tool performs no reverse DNS lookups on your IPs.

Meta
Meta documents its crawler user agents and robots.txt controls. No complete official address feed is enabled here. A Meta user agent alone cannot authenticate a request. Operator documentation
ByteDance
The official Bytespider page lists ten IPv4 ranges and reverse DNS guidance. This checker does not download that JavaScript-rendered list, so Bytespider ownership remains unverified. Third-party IP lists are excluded. Operator documentation
Amazon
Amazon publishes separate address lists for Amazonbot, Amzn-SearchBot and Amzn-User. This checker reads the complete JSON blocks on those official HTML pages. Individual addresses are matched as host ranges. Operator documentation
Mistral AI
The checked documentation links IP lists for MistralAI-User and MistralAI-Index. It does not link a separate MistralAI-Training list. Training requests remain outside this coverage. Operator documentation
Majestic
Majestic documents a distributed crawler without consecutive IP blocks. Use the MJ12bot user agent and robots.txt controls; this checker cannot confirm an IP from that name. Operator documentation
Google
Google documents reverse DNS with category-specific googlebot.com, google.com or googleusercontent.com hostnames, followed by a forward lookup that returns the original IP. Cloud user fetchers are not necessarily operated by Google. Operator documentation
Apple
Apple documents reverse DNS ending in applebot.apple.com. Confirm the hostname resolves back to the original address before trusting it. Operator documentation
Common Crawl
Common Crawl publishes a CCBot IP file. It documents crawl.commoncrawl.org reverse DNS for IPv4, confirmed by forward DNS, and says its IPv6 addresses do not have reverse DNS records. Operator documentation

How this tool works

Use the original peer address
Paste one address per line or a short log excerpt. Check that your logs record the actual peer, or a forwarded address from a proxy you trust. The tool extracts valid addresses and checks at most 50 distinct IPs.
Read the matching range
The server reads official range files with a 24-hour cache. A failed refresh keeps the last complete copy and marks it stale. Shared infrastructure ranges cannot identify an individual crawler. A missing match can also reflect incomplete coverage.
Confirm the request context
Compare the claimed user agent with the matched operator and its documentation. Where documented, reverse DNS followed by a forward lookup can add evidence. This checker performs no reverse DNS lookups on your addresses.

Related tools

  • Reverse DNS lookup

    Use this reverse DNS lookup to find a PTR hostname for an IP address. Check whether it resolves back to the same address before reviewing mail server DNS.

  • User agent checker

    Use this user agent checker to inspect your browser or up to 50 pasted strings. Read browser, engine and OS tokens, frozen-version warnings and documented crawler matches.

  • AI crawler log analyzer

    Use this AI crawler log analyzer to count visits by bot, path, status and day. Compare source IPs with official ranges locally. Your log is never uploaded.

Before you start

It proves only that the address is inside a published range in the copy shown. Shared Google Cloud ranges include user-owned fetchers. Check the original peer address, request context, user agent and the operator guidance before changing access rules.

A complete older copy remains available and is marked stale with its original refresh date. If there is no good copy, that list is unavailable. Results show coverage so an incomplete check does not look like proof that a bot is fake.

The pasted input is sent to the AIGROW API for extraction and matching. The checker does not persist the input or run DNS lookups on it. Remove URLs, cookies and personal details from log excerpts before submitting them.

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