Mobile Friendly
Good for checking if site is Mobile Friendly
https://search.google.com/search-console/mobile-friendly?utm_source=mft&utm_medium=redirect&utm_campaign=mft-redirect
Microdata Testing Tools
Good for Schema.
https://search.google.com/structured-data/testing-tool
Facebook Link
Good for Opengraph.
https://developers.facebook.com/tools/debug/
Twitter Card Validator
https://cards-dev.twitter.com/validator
SSL https://www.ssllabs.com/ssltest/index.html"] https://www.ssllabs.com/ssltest/index.html
Performs a deep analysis of the configuration of any SSL web server.
Page Speed Tools
https://gtmetrix.com
GTmetrix is a free tool that analyzes your page's speed performance.
