W3C_CSS_Validator

Last updated 17 hours ago.

What is W3C_CSS_Validator?

About

W3C_CSS_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.

You can set up agent analytics to see when W3C_CSS_Validator visits your website.

Detail

Operator

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

W3C_CSS_Validator Visiting Your Website

50% of your 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

0%

0% of top websites are blocking W3C_CSS_Validator

Access Control

Should I Block W3C_CSS_Validator?

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

Using Robots.txt

You can block W3C_CSS_Validator or limit its access by setting user agent token rules in your website's robots.txt. We recommend setting up agent analytics to check whether it's actually following them.

User Agent Token	Description
`W3C_CSS_Validator`	Should match instances of W3C_CSS_Validator

# robots.txt
# This should block W3C_CSS_Validator

User-agent: W3C_CSS_Validator
Disallow: /

Instead of doing this manually, you can use the API or Wordpress plugin to keep your robots.txt updated with the latest known AI scrapers, crawlers, and assistants automatically.

Set Up Automatic Robots.txt