Broken links are one of the most common technical issues found on websites. They occur when a link points to a page, file, or resource that is no longer available at the expected URL. Instead of reaching the intended destination, visitors may see an error such as 404 Not Found.
Broken links are unlikely to destroy a website’s search rankings, they can create a poor user experience, waste valuable crawling resources, and make a website appear poorly maintained. For these reasons, finding and fixing broken links should be part of regular website maintenance and SEO work.
What Are Broken Links?
A broken link is a hyperlink that no longer leads to a working destination. This can happen when a page is deleted, a URL is changed, a website moves to a new domain, or an external resource becomes unavailable.
For example, suppose your website contains a link to:
example.com/old-services
If that page is deleted without redirecting the old URL, visitors who click the link may receive a 404 error.
Broken links can appear in several places, including:
- Internal website links
- External links to other websites
- Navigation menus
- Blog posts
- Images and media files
- Downloadable documents
- Buttons and calls to action
Not every broken link produces a 404 status. Server problems, incorrect redirects, blocked resources, and other HTTP errors can also prevent a link from working correctly.
Why Broken Links Matter for SEO
Broken links are primarily a user experience and website quality issue, but they can also affect SEO indirectly.
Poor User Experience
When visitors click a link and reach an error page, they may leave the website rather than continue browsing. If broken links occur frequently, they can reduce trust and make the site difficult to navigate. A well-maintained website should make it easy for users to move between relevant pages.
Crawling and Website Maintenance
Search engines use crawlers to discover and access website content. When internal links repeatedly lead to unavailable URLs, crawlers may encounter unnecessary errors.
This does not mean that every 404 automatically causes a ranking penalty. In fact, legitimate 404 pages are a normal part of the web. The bigger concern is allowing large numbers of broken internal links to remain unresolved.
Lost Opportunities
A broken internal link can prevent visitors and search engines from reaching useful content. If the missing page contains important information, fixing the link can restore that connection.
Broken external links can also reduce the usefulness and credibility of an article, especially when the linked source is important to the topic.
Common Causes of Broken Links
Understanding why broken links happen makes them easier to prevent.
Deleted Pages: A page may be removed because its content is outdated, duplicated, or no longer relevant. If other pages still link to it, those links can become broken.
Changed URLs: Changing a URL without properly redirecting the old address is another common cause. For example:
website.com/blog/seo-tips
might become:
website.com/blog/seo-strategies
If the old URL has existing links, a suitable redirect may be needed.
Typographical Errors: A simple spelling mistake in a URL can make a link unusable. This often happens when links are added manually.
Website Migrations: Domain changes, redesigns, and changes to website structure can create hundreds or even thousands of broken links if old URLs are not properly mapped.
External Website Changes: You have less control over external websites. A page you linked to several months ago may later be deleted, moved, or replaced.
How to Find Broken Links
Regularly auditing your website can help identify broken links before they become a significant problem.
Use a Website Crawler
SEO crawling tools can scan your website and identify URLs returning errors. These tools can also show which pages contain the problematic links. A crawler is especially useful for large websites because manually checking hundreds or thousands of links is impractical.
Check Google Search Console
Google Search Console can provide useful information about crawling and indexing issues. It can help website owners identify URLs that Google has encountered and investigate whether those URLs are intentionally removed or need attention.
However, Search Console should not be treated as a complete broken-link checker. A dedicated website crawl can provide a broader view of links across the site.
Check Links Manually
Manual checking is useful for important pages. Review your homepage, navigation, popular articles, landing pages, and pages that generate significant traffic. Pay particular attention to links that were recently changed or added.
How to Fix Broken Links
Once broken links have been identified, the correct solution depends on why the link is broken.
Update the Link
If the destination page has moved to a new URL, update the link to point directly to the correct page. This is usually the simplest solution for internal links.
Add a 301 Redirect
If an old URL has been permanently replaced by a relevant new URL, a 301 redirect can send users and search engines from the old address to the new one. Redirects should lead to a relevant replacement rather than an unrelated page or simply the homepage.
Remove the Link
If there is no useful replacement for the destination, removing the link may be better than keeping a broken reference. This is particularly appropriate when the original resource is no longer relevant.
Replace an External Link
When an external source disappears, look for a reliable alternative that provides similar information. Replace the broken link with a current, trustworthy resource.
How to Prevent Broken Links
Fixing broken links is important, but preventing them can save time in the future. Before publishing new content, test important links. After website redesigns or migrations, perform a complete crawl to identify problems.
Maintain a consistent URL structure and avoid changing URLs unnecessarily. When URLs must change, create an appropriate redirect strategy before removing the old addresses.
The ideal frequency depends on the size and complexity of the website, but larger websites generally benefit from more frequent monitoring.
Broken Links vs. Broken Backlinks
Broken links and broken backlinks are different problems. Broken link usually refers to a link on your website that points to an unavailable destination. Broken backlink occurs when another website links to a URL on your website that no longer works.
For example, another website may link to:
yourwebsite.com/old-guide
If that page has been deleted, visitors coming from the external website may encounter a 404 page. If the old page had valuable backlinks, creating a relevant replacement and redirecting the old URL may help preserve the value of those links.
Are 404 Errors Always Bad for SEO?
No. A 404 error is not automatically a negative SEO signal. Websites naturally accumulate URLs that no longer exist. Pages may be removed, products may be discontinued, or content may be reorganized.
The important issue is whether broken URLs are intentional and properly managed. A custom 404 page can also improve the user experience by helping visitors return to useful sections of the website.
Final Thoughts
Broken links are a normal part of website management, but leaving them unchecked can create unnecessary usability and maintenance problems. Regularly identifying broken links allows website owners to update outdated URLs, implement appropriate redirects, remove unnecessary references, and replace unavailable external resources.
The goal should not be to eliminate every 404 URL at any cost. Instead, focus on maintaining useful internal navigation, providing a good user experience, and ensuring that important content remains accessible.
FAQs
Q1. What is a broken link?
Ans: A broken link is a URL that no longer leads to the intended webpage and may show a 404 or other error.
Q2. Do broken links hurt SEO?
Ans: Broken links can negatively affect user experience and website quality, but a few 404 errors do not automatically cause a ranking penalty.
Q3. How can I find broken links?
Ans: You can find broken links using SEO crawling tools, Google Search Console, or by manually checking important pages.
Q4. How do you fix a broken link?
Ans: Update it with the correct URL, redirect the old URL to a relevant page, replace an external link, or remove it if no suitable destination exists.
Q5. Why do links become broken?
Ans: Common causes include deleted pages, changed URLs, website migrations, typing errors, and changes to external websites.
Q6. How often should I check for broken links?
Ans: Regular audits are recommended. Larger or frequently updated websites may benefit from checking broken links more often.