What is heritrix?
heritrix is listed as a archive crawler. Use this crawler profile to identify user-agent tokens, operator signals, platform hints, and recommended handling.
heritrix
Archive crawler
- Version
- 3.1.1
- First seen
- Sep 17, 2025
- Confidence
- Known user-agent token
Crawler tags
Directory facts
- AI model training
- Not listed as training
- Acts on behalf of user
- No, autonomous
- Obeys directives
- Yes, listed as obeying robots.txt
What is heritrix?
heritrix is listed as a archive crawler. heritrix is classified as a generic crawler that may fetch pages for search, SEO, monitoring, or data collection workflows.
heritrix matched a known crawler token in the user-agent string, but this page alone does not prove IP ownership.
How to identify heritrix in logs
Search server logs for heritrix. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.
Mozilla/5.0 (compatible; heritrix/3.1.1 +http://archive.org)
Use this as a web-crawler lookup reference for identifying how this user-agent presents itself in server logs. After you identify crawler traffic, run the WebMCP Compatibility Checker to confirm whether AI crawlers and agents can understand your site.
User-agent signals
- Product tokens
- Mozilla/5.0, heritrix/3.1.1
- Documentation
- http://archive.org
- Contact
- None found
- Platform
- Unknown · Unknown
- Browser profile
- Unknown · Unknown
- Browser-like UA
- Yes
- HTTP library
- Unknown
- Spoof risk
- Medium
Questions answered by this crawler profile
What is heritrix?
heritrix is listed as a archive crawler. heritrix is classified as a generic crawler that may fetch pages for search, SEO, monitoring, or data collection workflows.
Does heritrix train AI models?
heritrix is not listed as being used to train AI or LLM systems.
Is heritrix user-triggered?
heritrix is listed as operating independently of a direct user action.
How do I identify heritrix in logs?
Search server logs for heritrix. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.
Does heritrix respect robots.txt?
This directory entry lists the crawler as obeying robots.txt directives. Confirm behavior in your logs before relying on user-agent strings alone.