Moz Link Explorer - Search engine for links Perform competitive website research.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
OpenGraphWiki.com - Open graph generator and simulator. Test or generate open graph tags for any web page.
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
OpenGraph.xyz - Check how search engines and social medias such as Google, Facebook, Twitter display your website
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.