HTML Checking for Large Sites
Rocket Validator automatically checks your pages on the W3C Validator.
HTML issues tagged as cache-control.
The value cache-control is no longer a valid pragma directive. A better alternative is defining cache-control as an HTTP header.
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25,000 HTML checks per month. Is that enough for your site?
Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.