Free tools
Free SEO Tools
Check backlinks, rankings, traffic, and domain details, or preview a search result. Use these tools without an account.
Backlink Checker
Domain rank, referring domains, and the top backlinks pointing at any site.
Competitor Keyword Finder
Find a competitor's top organic keywords, search volumes, positions, and ranking pages.
Keyword Generator
Turn a topic into keyword ideas with search volume and difficulty estimates.
Website Traffic Checker
Estimated organic traffic, keyword count, top keywords, and top pages for any domain.
Competitor Analysis
A competitor's top keywords and pages, and the keywords they rank for that you don't.
Spam Score Checker
A domain's backlink spam score and the spammiest links pointing at it.
Domain Age Checker
Find when a domain was registered, when it expires, and which registrar it uses.
SERP Simulator
Preview your title and description in desktop and mobile search results.
Connect your Search Console data
Google Search Console MCP
Point Claude, Codex, or any MCP client at your own Search Console data. Connect your Google account to get started; no Google Cloud project is needed.
Why these are free
These tools give you a useful first look at a website without an account. Data lookups have usage limits to keep them free. For more research, OpenSEO brings keyword research, rank tracking, backlinks, and site audits into one workspace, with trial credits to get started.