HTTP requests checker

Check the total size of a web page, including all resources, for performance analysis.

Find JavaScript tags and display their defer and async attributes.

Count the total number of HTML elements in a webpage.

Check if images on a webpage have the lazy loading attribute enabled for performance optimization.

Detects outdated HTML tags that should be replaced with modern alternatives.

Get all possible details about an SSL certificate.

Extract all the text of a website from the source code of the page.

Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.

Verify the time to first byte of any website.