Google has some very useful tools to perform a range of different functions and tasks.
Assess your site with Google Analytics
According to Wikipedia:
Google Analytics is a web analytics service offered by Google that tracks and reports website traffic, currently as a platform inside the Google Marketing Platform brand. Google launched the service in November 2005 after acquiring Urchin.
Google Search Console
Google Structured Data Testing Tool
Google Page Speed Insights
Web.dev / Lighthouse Report
Google My Business