Serpstat Website SEO Checker

Serpstat Website SEO Checker puts a competitor and page analysis panel inside Chrome, so you can examine a domain or page without opening a new tab. Click the icon and it lists key metrics, analysis and tips. The on-page part covers page source, Google cache, PageSpeed Insights, site start date, meta tags, HTML tags, word and symbol counts and the favicon. A page analysis section and a domain analysis section add visibility, traffic, number of keywords and top competitors in the region, and the extension also supports quick keyword research. The on-page parameters are free for life, while page and domain analysis are freemium. Some features work right after installation without signing up, which makes it handy for marketers sizing up a rival site.