🛠️ No signup, no paid API keys required
Free SEO & GEO Tools
Five small utilities from the Synthexeo knowledge base — each one has its own page with a plain explanation of what it does, why it matters, and how to use it.
AI Bot Access Checker
See exactly which AI crawlers — ChatGPT, Claude, Google's AI Overviews, Perplexity, and more — can and can't read your site.
Open tool →IndexNow Submitter
Ping Bing, Yandex, and other IndexNow-participating search engines the moment you publish or update a page.
Open tool →Wikidata Entity Checker
Check whether a brand, product, or person already exists as a recognized entity in Wikidata.
Open tool →Core Web Vitals Checker
Run a live Lighthouse audit on any URL and get a performance score plus LCP, CLS, and INP.
Open tool →Open PageRank Checker
A free, open alternative to Domain Authority — a 0-10 score built from real link-graph data.
Open tool →