Here are some useful tools to help verify that your site is optimized for Google Search and is crawlable by Google.
Search Console - Google Search Console helps you discover how Google Search—and the world—sees your site and app in Search results. You can also optimize your Search performance and debug errors.
Structured Data Testing Tool - Test your page's structured data markup for correctness. Make sure to fix all errors reported by the tool before deploying your markup.
Mobile-Friendly Test - Use this tool to see if your page is mobile-friendly and get instant recommendations.
Rich Results Test - Test your publicly accessible page to see which rich results can be generated by the structured data it contains.
AMP Test - Verify that your AMP pages are valid and can be shown with AMP related features on Google Search.
Google My Business - Get your business hours, phone number, and directions on Google Search and Maps, with Google My Business.
PageSpeed Insights - Test how long it takes your page to load. Faster loading pages are popular with users.