SerpWorx

Instant SEO metrics appear right in Google results and on any page you visit with this toolbar extension, which checks more than 30 metrics in a click without leaving the page. Link data comes from Majestic, including Trust Flow, Citation Flow, topical Trust Flow categories and inbound link counts, alongside Moz domain metrics. Semrush figures cover total keyword visibility with search volume and positions plus monthly traffic, while an Ahrefs account is needed for the Ahrefs metrics. Onsite checks list heading tag counts and text, Google page speed results, broken link counts, a mobile friendly check, indexed pages, the technology a domain is built with, hosting location and age from the Wayback Machine. A free three day trial runs without a credit card, so you can test the toolbar before deciding whether to keep it.