W3C_Validator

Last updated 7 hours ago.

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.

Detail

Operator

W3C

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

Activity on Your Website

Half of your website's traffic probably comes from artificial agents, and there are more of them every day. Track their activity with the API or WordPress plugin.

Set Up Agent Analytics

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 should block W3C_Validator

User-agent: W3C_Validator
Disallow: /

Instead of doing this manually, you can generate a robots.txt using the API or WordPress plugin that stays up to date with the agent list automatically. The WordPress plugin can also enforce your robots.txt and block agents who try to ignore the rules.

Set Up Your Robots.txt