What are some alternatives?
When comparing MetaTagTools.com and OpenGraphTags, you can also consider the following products
MetaTagsTool.com - Meta Tag Analyzer, Simulator, & Generator
OpenGraphTool.com - Open Graph Checker Tool
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
MetaTagTool.com - Meta Tag & Open Graph Tag Generator, Simulator, & Analyzer
SiteGuru - SiteGuru crawls and analyzes your website. We check your content, links and website structure and give actionable tips to improve your site.
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.