How to Fix Crawl Errors in Search Engine Webmaster Tools: A Complete Beginner Guide

Apr 11, 07:31AM

Crawl errors are one of the most common technical SEO problems that prevent websites from ranking properly in search engines. When a search engine cannot access a page, it cannot index or show that page in search results, which directly impacts visibility, traffic, and potential leads.

This guide explains what crawl errors are, why they matter, the different types of crawl issues reported in webmaster tools like Google Search Console or Bing Webmaster Tools, and step-by-step methods to fix them effectively.

What Are Crawl Errors in Webmaster Tools?

Crawl errors occur when a search engine bot tries to access a webpage but fails due to technical problems such as missing pages, server failures, blocked resources, or incorrect redirects. These errors are reported inside webmaster tools to help site owners identify issues that prevent proper indexing and ranking.

Why crawl errors matter for SEO

If important pages cannot be crawled, they will not appear in search results. Over time, unresolved crawl issues reduce overall site trust and visibility.

Where to Find Crawl Errors in Search Engine Tools

Most crawl errors are visible inside the “Pages,” “Indexing,” or “Coverage” reports of webmaster platforms like Google Search Console. These reports show which URLs are not indexed and explain the technical reason behind each issue.

Typical locations in tools

• Google Search Console → Pages / Indexing report
• Bing Webmaster Tools → Site Explorer / Crawl Information

Regular monitoring helps detect technical SEO problems early before rankings drop.

Common Types of Crawl Errors and Their Meaning

Different crawl errors signal different technical failures. Understanding the error type is the first step toward fixing the issue correctly.

404 Not Found

The requested page does not exist or was removed without a redirect.

Soft 404

The page exists but provides no useful content, so search engines treat it like a missing page.

Server Errors (5xx)

The server failed to respond properly due to hosting, configuration, or resource issues.

Blocked by robots.txt

Search engines are intentionally prevented from crawling the page.

Redirect Errors

Redirect loops or long redirect chains stop bots from reaching the final page.

How Crawl Errors Affect Rankings and Traffic

Crawl errors reduce the number of pages search engines can index, which limits search visibility and organic traffic. Large numbers of errors can signal poor site quality, slowing overall ranking growth and sometimes causing traffic decline across the entire domain.

Hidden long-term impact

Even small unresolved crawl problems accumulate over time, weakening SEO performance and user experience.

How to Fix 404 Crawl Errors Step by Step

Fixing 404 errors ensures users and search engines reach valid content instead of dead pages. The correct solution depends on whether the page should exist.

Best fixes for 404 pages

• Restore the original page if still relevant
• Redirect to the most relevant working page
• Remove the URL from sitemap if permanently deleted

Avoid redirecting all 404 pages to the homepage, as this confuses search engines.

How to Fix Server Errors (5xx)

Server errors indicate hosting or configuration problems that stop search engines from loading pages. These must be fixed quickly to prevent indexing loss.

Common solutions

• Upgrade slow or unstable hosting
• Reduce heavy plugins or scripts
• Check server timeout and memory limits
• Monitor uptime regularly

Stable hosting is essential for technical SEO health.

How to Fix Pages Blocked by robots.txt

Sometimes important pages are accidentally blocked in the robots.txt file, preventing indexing. Reviewing crawl permissions ensures search engines can access valuable content.

Fixing blocked URLs

• Open robots.txt in the browser
• Remove disallow rules for important pages
• Test changes using webmaster tool testing features

How to Fix Redirect Errors and Chains

Redirect problems occur when multiple redirects or loops stop search engines from reaching the final destination page. Clean redirects improve crawl efficiency and user experience.

Best redirect practices

• Use a single 301 redirect to the final URL
• Avoid redirect chains longer than one step
• Update internal links to point directly to final pages

How to Validate Crawl Error Fixes in Webmaster Tools

After fixing issues, webmaster tools allow site owners to request re-checking of affected pages. This confirms whether the problem is resolved and helps pages return to indexing faster.

Validation process

Use the “Validate Fix” or “Request Indexing” option inside the tool and monitor status updates over the following days.

Best Practices to Prevent Future Crawl Errors

Preventing crawl errors is easier than fixing them later. A strong technical SEO routine keeps websites accessible and indexable.

Prevention checklist

• Maintain a clean XML sitemap
• Monitor Search Console weekly
• Use proper redirects when deleting pages
• Keep hosting fast and reliable
• Audit broken links regularly

Do Crawl Errors Always Need Immediate Fixing?

Not every crawl error is critical. Errors on unimportant or intentionally removed pages may not affect rankings. However, errors on key service, product, or landing pages must be resolved quickly to protect traffic and visibility.

When to Seek Professional Technical SEO Help

If crawl errors are widespread, recurring, or difficult to diagnose, professional technical SEO support can prevent long-term ranking damage. Experts can identify deeper structural or server-level issues that basic fixes may miss.

Need Help Fixing Crawl Errors on Your Website?

If your website shows indexing problems, missing pages, or technical crawl issues, structured technical SEO improvements can restore visibility and improve rankings. Media Web Tek helps businesses identify crawl problems, fix indexing barriers, and strengthen overall technical SEO performance.

• Technical SEO audits
• Crawl error diagnosis and fixes
• Indexing and performance optimisation

Request a technical SEO audit to ensure search engines can fully access and rank your website.

Crawlability is the foundation of SEO.
If search engines cannot reach your pages, your customers cannot either.