Crawlability
Crawlability is how easily search engine bots can access, navigate, and discover the pages and resources on a website.
Key takeaways
- Crawlability is the first step before indexing — if a page can't be crawled, it can't appear in search results.
- Common blockers: robots.txt blocks, broken links, redirect chains, orphan pages.
- XML sitemaps and strong internal linking improve crawlability.
- Crawlability is not the same as indexability; a page can be crawled but not indexed (e.g., noindex tag).
Crawlability is a core technical prerequisite for indexing, especially on large or frequently changing sites.
Example
A blog publishes a new article but forgets to add it to the XML sitemap and doesn't link to it from any other page. Googlebot never discovers the URL, so the article remains uncrawled and unindexed — invisible in search results.
When should I use this?
Focus on crawlability when:
- Launching a new website or redesign.
- Adding many new pages (e.g., product catalog, blog posts).
- Noticing pages missing from search results.
- Seeing crawl errors in Google Search Console.
- Managing a large site with thousands of URLs.
What it is not
- Crawlability is NOT the same as indexability — a page can be crawled but blocked from indexing via noindex.
- Crawlability is NOT about user experience or page speed (though those can affect crawl efficiency).
- Crawlability is NOT about ranking — it's just the first step to get pages into the index.
Quick start
- Submit an XML sitemap via Google Search Console.
- Check robots.txt for accidental blocks of important pages.
- Audit internal links — ensure key pages have at least one link from another page.
- Fix broken links and redirect chains using a crawler tool.
- Monitor crawl stats in Google Search Console for spikes or drops.
Common mistakes
- Blocking important pages or directories in robots.txt.
- Relying on orphan pages or weak internal linking so bots cannot reach key URLs.
- Leaving broken links, redirect chains, or redirect loops unfixed.
- Treating crawlability as the same thing as indexing.
Next step
FAQ
What is crawlability in SEO?
Crawlability is how easily search engine bots can access and navigate a website's pages. It is a prerequisite for indexing.
What is the difference between crawlability and indexability?
Crawlability is about bot access to a page. Indexability is about whether a crawled page can be stored in the search index. A page can be crawlable but not indexable (e.g., blocked by noindex).
How do I check my website's crawlability?
Use Google Search Console's URL Inspection Tool, check your robots.txt file, review crawl stats, and use tools like Screaming Frog to simulate crawling.
Related topics
Sources
- Google Search Central — Primary Google documentation for crawling, indexing, robots.txt, sitemaps, and technical SEO guidance.
- Google Search Central: robots.txt — Authoritative source for how robots.txt affects crawler access.
- Google Search Central: Sitemaps — Authoritative source on XML sitemaps and discovery.
- Google Search Central: Crawl budget — Best source for understanding crawl budget on larger sites.
- Google Search Central: SEO Starter Guide — Broad official guidance that covers crawl-friendly site structure and internal linking.
Reviewed by Lucía Marín, Founding editor.