What is Webzio-Extended? AI crawler guide
Webzio-Extended is a crawler or fetcher associated with Webz.io. See source-graded user-agent, robots.txt, verification, and observation guidance.
What is Webzio-Extended?
Webzio-Extended is a documented Webz.io crawler or fetcher. Webz.io token covering whether crawled content may be included in the datasets it resells for AI and machine learning use.
Evidence status
| Field | Value |
|---|---|
| Evidence | Officially documented |
| Lifecycle | Active |
| Purpose | training |
| robots.txt posture | honors |
| Source checked | 2026-08-11 |
Documented user-agent
Webzio-Extended
robots.txt allow example
User-agent: Webzio-Extended Allow: /
robots.txt block example
User-agent: Webzio-Extended Disallow: /
What the rule can and cannot do
Robots.txt expresses an access policy to compliant automated crawlers. It does not authenticate the sender, remove content already collected, or guarantee that a model will use or not use content.
How to verify a request
- Match the complete documented user-agent where one exists. A match is only a clue.
- Look for operator-published IP ranges, reverse DNS, or signed-request guidance. None is attached to this record.
- Keep the observed request, operator documentation, and any inference as separate fields.
JavaScript behavior
The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.
Related bots
- Applebot-Extended: Also tracked as a training crawler.
- ClaudeBot: Also tracked as a training crawler.
- img2dataset: Also tracked as a training crawler.
- Google-Extended: Also tracked as a training crawler.
- VelenPublicWebCrawler: Also tracked as a training crawler.
- LAIONDownloader: Also tracked as a training crawler.
- GPTBot: Also tracked as a training crawler.
- Meta-ExternalAgent: Also tracked as a training crawler.
- AI2Bot: Also tracked as a training crawler.
- AI Training Opt-Out: Webzio-Extended is a training crawler tied to this policy decision.
- Robots.txt: Robots.txt is the control file used to allow or block Webzio-Extended.
Frequently Asked Questions
What is Webzio-Extended?
Webzio-Extended is a officially documented crawler or fetcher record associated with Webz.io.
What user-agent does Webzio-Extended use?
Webzio-Extended. Check the evidence status before attributing a matching request.
Can Webzio-Extended be blocked in robots.txt?
The record identifies Webzio-Extended as the token to review. Robots.txt is a request policy, not proof of model use or non-use.
How can I verify a Webzio-Extended request?
Treat the user-agent as a clue and look for operator-published IP, reverse-DNS, or signature guidance.
Data & Sources
- Webz.io documentation - Primary source for Webzio-Extended crawler details.