Ahrefs Webmaster Tools is The best tool to audit a website. Earlier it was fully paid but now it has been freed with some features. Here you can check the backlink of your website as well as you can also check the competitor. if are you a search engine optimizer
SEO Extension Provide you information about different websites without leaving your web browser. You can see everything on websites like domain authority and page authority. SEO extension is one of the best solutions for SEO. Looked at so far and focused on keyword as well backlinks to get your goal.
keyword research tool gives you information about people's care topics. If you will Optimize on this type of topic then your website or product will start ranking quickly. There are 8 Best Suggested Free keyword research tools. Find your competitor's keywords volume. It makes it easy to achieve your goal.
Domain Ownership verification google gives TXT Record to add them into the domain host record. When Google check the record exists. Then they confirmed domain your ownership. Once your ownership confirmed then similarly add your site with Bing and Yandex Webmaster Tools. Monitor all performance of your site in search.