About Sanity Check
SanityCheck.io Limited is a small software company in Bude, Cornwall, that builds SaaS tools for SEO professionals and digital agencies. It runs three products. SEOTesting is a search engine optimization testing and reporting platform for data-led decisions. InternalLinking is a tool that suggests internal links to add to the content on a domain. RankTracker is a free rank tracking tool built on Google Search Console data. Each one is built to do a single job well, and together they cover testing the effect of SEO changes, connecting existing pages, and following keyword positions from data already held in Search Console.
Services and details
Does SEO work itself
YesRank tracking
YesFree plan or free tools
Yes
No information yet on keyword research, content optimization, writes content with AI, technical audits, backlinks and link building, local SEO, aI search visibility, free trial, aPI or MCP server, wordPress plugin, browser extension, built for agencies. The website did not say; check with the vendor.
Links
Listing compiled from public sources and the product's own website on 2026-11-05. Report a correction or request removal. Back to rank trackers.