The Best Free SEO Tools in 2026
Paid SEO tools are good. Free tools, used correctly, are just as effective for most teams. The best free SEO tools in 2026, organised by what they actually do.
In-depth articles on technical SEO, crawling, and getting the most from Crawly.
Claude Code MCP Setup
Connect Crawly's MCP server to Claude Code, Cursor, Codex or Windsurf.
CrawlingCrawl Configuration Guide
Understanding depth, concurrency, rate limits and user agents for accurate crawls.
FeaturesUsing Crawl Comparison
How to diff two crawls and catch regressions before your clients do.
MigrationSEO Site Migration Checklist
Use Crawly to verify redirects, check indexability and protect rankings during a migration.
SEOHow to Run a Technical SEO Audit
A step-by-step walkthrough using Crawly to identify and fix technical SEO issues.
Internationalhreflang: The Complete Guide
Everything you need to know about implementing hreflang for international SEO.
Paid SEO tools are good. Free tools, used correctly, are just as effective for most teams. The best free SEO tools in 2026, organised by what they actually do.
Missing title tags, broken links, redirect chains - these problems accumulate silently. Here is how to do a thorough free SEO website check, step by step.
An SEO crawler visits every page on your site and records what a search engine sees. Here is how they work, what they find, and how to get the most from one.
A canonical tag tells search engines which page to index. Get it wrong and you suppress pages from Google. Here is how to audit canonical tags properly.
SEO spider software crawls your site like Googlebot, recording titles, status codes, and issues across every page. Here's how it works and what to look for.
Crawly's built-in MCP server connects your crawl data directly to Claude Code. Here's how to set it up and what you can ask it.
A step-by-step walkthrough of Crawly's audit workflow: issues, response codes, security headers, hreflang, images, and crawl comparison.
Broken links waste crawl budget, harm user experience, and lose link equity. Here's how to find them all — and track down which pages are causing the problem.
Redirect chains waste crawl budget, slow page load, and dilute link equity. Here's how to find every chain on your site and fix them efficiently.
Crawl budget determines how much of your site Google actually crawls. Here's when it matters, what wastes it, and how to audit it.