Social Media Validation Tools - These following are some tools that may be useful for your website.
1. Twitter Validation Tool
Before your cards show on Twitter, you must first have your domain approved. Fortunately, it's a super-easy process.
2. Facebook Debugger
These debugging tool offer gives you a wealth of information about all your tags and can also analyze your Twitter tags.
3. Google Structured Data Testing Tool
Webmasters traditionally use the structured data testing tool to test authorship markup and preview how snippets will appear in search results.
4. Pinterest Rich Pins Validator
Use these tool to test your data markup and apply for approval at the same time.
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