Doctype checker

Check if a webpage has an HTML doctype declaration.

Additional page content: Editable from the admin panel -> languages -> choose or create language -> translate app page.

Similar tools

Detects outdated HTML tags that should be replaced with modern alternatives.

Get the HTML language attribute from a webpage.

Check if a webpage declares its character encoding.

Website status checker.

7,597,188

20,366

Check if the URL is cached or not by Google.

1,265

Check for 301 & 302 redirects of a specific URL. It will check for up to 10 redirects.

1,258

Get the web-host of a given website.

1,237

Get & verify the meta tags of any website.

1,110

Check whether a website is using the new HTTP/2 protocol or not.

1,096