If pages on your site keep vanishing from search results, or new content never seems to show up at all, the problem often comes down to crawl errors. Learning how to fix crawl errors is one of the most practical technical SEO skills a website owner can pick up, since these errors quietly stop Googlebot from reaching, reading, and indexing your pages in the first place.
This guide walks through what crawl errors actually are, the most common types you will run into, and exactly how to find and fix them using Google Search Console. By the end, you will also know how to prevent crawl errors from piling back up.
What Are Crawl Errors and Why Do They Matter?
A crawl error happens when a search engine bot, like Googlebot, tries to access a page on your site and cannot access it successfully. Instead of loading the page normally, the crawler hits a dead end: a broken link, a server error, a blocked robots.txt file, or a URL that no longer exists.
Crawl errors matter because a page search engines cannot crawl is a page that almost never gets indexed, and a page that is not indexed cannot appear in search results no matter how good the content is. Google search central has been clear on this point for years: crawling and indexing are the two gates every page must pass through before ranking becomes possible.
Left unchecked, crawl issues waste your crawl budget, the limited number of crawl requests Googlebot allocates to your entire website during a given period. That wasted budget means fewer resources left to discover and index the pages you actually want ranked.
Common Types of Crawl Errors You Should Know
Not all crawl errors are created equal. Here are the types of crawl errors you are most likely to encounter, and what typically causes each one.
404 and URL Errors
A 404 error means the requested URL was not found on the server. These url errors usually happen after a page gets deleted, moved, or renamed without a proper redirect in place, leaving old links pointing at nothing. Google encountered thousands of unnecessary 404 errors on the average site simply because internal links or old sitemap entries never got updated.
Server Errors (5xx)
Server errors occur when your web server fails to respond correctly to a crawl request, often returning a 5xx status code instead of the page itself. These 5xx server errors typically point to server overload, misconfigured settings, or the server temporarily going down during a crawl attempt.
DNS Errors
DNS errors happen when Googlebot cannot resolve your domain to a valid ip address at all, which prevents the crawler from even reaching your server. These errors are less common than 404s, but they are more serious, since they can block google from accessing your entire website until resolved.
Redirect Errors
Redirect errors show up when a URL redirects incorrectly, such as a redirect chain that loops back on itself or leads to another broken page. A clean 301 redirect should always point directly to a live, relevant destination rather than bouncing through several extra hops.
How to Find Crawl Errors in Google Search Console
Google Search Console is the primary free tool for identifying crawl errors on your site, and checking it regularly should be part of every SEO routine.
Using the Crawl Stats Report
The crawl stats report under Settings shows how often Googlebot crawls your site, which status codes it encountered, and whether crawl requests are trending up or down. This report is useful for spotting sudden spikes in server errors or a drop in overall crawl activity, both signs something needs attention.
Checking the Pages Report
The Pages report, found under Indexing, shows your current indexing status alongside a list of affected URLs grouped by the specific error or warning behind each one. Click into any error category and you will see a list of affected urls you can review one by one.
Using the URL Inspection Tool
The URL inspection tool lets you check any individual page on your site to confirm whether Google was able to crawl and index it successfully. It also shows the exact http status returned and flags any robots.txt blocks, making it one of the fastest ways to identify crawl errors on a single page without digging through the full report.
How to Fix the Most Common Crawl Errors
Identifying and fixing crawl errors is only half the job. Here is how to resolve the errors you will run into most often.
Fixing 404 Errors
For pages that should still exist, restore the content at its original URL. For pages that are genuinely gone, set up a 301 redirect pointing to the closest relevant replacement, and update any broken internal links still pointing to the old address.
Fixing Server Errors
Check your hosting logs around the time the error occurred to see whether the server was overloaded, misconfigured, or simply down for maintenance during that crawl. Working with your host or developer to increase server capacity often resolves recurring 5xx errors for good.
Fixing DNS Errors
Confirm your domain’s DNS settings are pointing to the correct server, and check with your DNS provider for outages. These errors are often outside your direct control, so prompt communication with your hosting provider matters more than any on-site fix.
Fixing Redirect Errors
Trace every redirect chain back to a single, direct 301 redirect rather than several stacked hops. Update your sitemap and internal links so they point straight to the final destination URL instead of an outdated one that bounces along the way.
Checking Your Robots.txt File
A misconfigured robots.txt file can accidentally block Googlebot from important sections of your site. Review it carefully to make sure you are not preventing search engines from crawling pages you actually want indexed.
How to Prevent Crawl Errors in the Future
Fixing crawl errors once is good. Building habits that prevent future crawl errors is better.
Submit and keep your sitemap updated so Googlebot always has a current, accurate list of urls to crawl. Monitor crawl errors in Google Search Console on a monthly basis rather than waiting until traffic drops to check in.
Audit your site periodically for broken internal links, outdated redirects, and any syntax errors in your robots.txt file that could quietly block crawlers. Using tools like Screaming Frog alongside Google Search Console gives you a more complete, ongoing view of your site’s crawl health and overall crawl efficiency.
Conclusion
Crawl errors are quiet problems with loud consequences: they cause google from accessing the very pages you are counting on to bring in traffic. Learning to identify and fix crawl errors using Google Search Console, your crawl stats report, and the URL inspection tool puts you back in control of your site’s technical seo health.
Start by reviewing your Pages report today, prioritize the errors affecting the most important pages first, and build a recurring habit of checking back. A site search engines can crawl freely is a site with a real shot at ranking well over time.
Frequently Asked Questions
1. How do I fix crawl errors in Google Search Console step by step?
Open the Pages report under Indexing, click into any error category to see a list of affected urls, then use the URL inspection tool to confirm the specific status code returned. Fix the underlying issue, whether it is a missing page, a broken redirect, or a robots.txt block, then request re-indexing.
2. What is the difference between a 404 error and a server error?
A 404 error means the specific URL was not found on an otherwise working server, usually because the page was deleted or moved. A server error, or 5xx error, means the server itself failed to respond properly, often due to overload or a configuration problem.
3. Can crawl errors hurt my website’s SEO rankings?
Yes. Pages search engines cannot crawl and index rarely appear in search results, and widespread crawl issues can waste crawl budget that would otherwise go toward discovering your important content.
4. How often should I check for crawl errors on my website?
Check your Google Search Console reports at least once a month, and immediately after any major site migration, redesign, or bulk content deletion, since these changes are the most common source of new crawl errors.
5. Why is Googlebot unable to crawl some pages on my site?
Common causes include a robots.txt file blocking the page, a broken or missing URL, server downtime during the crawl attempt, or a DNS issue preventing Googlebot from reaching your server at all.