W3C_Validator

Operated by W3C. Last seen today.

What is W3C_Validator?

About

W3C_Validator is a developer helper operated by W3C. It's not currently known to be artificially intelligent or AI-related. If you think that's incorrect or can provide more detail about its purpose, please contact us.

Type

Developer Helper

Used by developers to test website functionality

Expected Behavior

Developer Helpers generally visit websites on direct behalf of a user who is evaluating some feature or attribute. Visits can be one-off or part of a larger crawl.

Insights

Other Websites

of top websites are currently blocking W3C_Validator in some way

Learn How →

Access Control

Should I Block W3C_Validator?

Probably not. Developer helpers are normally used to optimize or find problems with your website.

Using Robots.txt

User Agent Token	Description
`W3C_Validator`	Should match instances of W3C_Validator

You can block W3C_Validator or limit its access by setting user agent token rules in your website's robots.txt.

# robots.txt
# This blocks W3C_Validator

User-agent: W3C_Validator
Disallow: /

Instead of doing this manually, you can generate your robots.txt automatically using the free API or Wordpress plugin.

Get the Robots.txt