You click a link on a website, expecting to see a specific article or product. Instead, the screen goes blank, and a frustrating message pops up: “Page Not Found.” This is the infamous 404 error. For a casual browser, it is a minor annoyance. For a WordPress website owner, however, these errors can be a significant headache.
404 errors break the user journey. They stop visitors in their tracks and signal to search engines that your site might be neglected. If you ignore them, you risk losing traffic and damaging your website’s SEO.
Fortunately, fixing these issues is usually straightforward. Whether you are dealing with a broken permalink structure or a corrupted .htaccess file, this guide covers every method to resolve the issue.
We will guide you through the process of detecting, fixing, and preventing 404 errors to keep your WordPress site running smoothly.
What is a WordPress 404 Error and Why It Matters
A 404 error is an HTTP status code. It occurs when a web server cannot find the requested page. Essentially, the browser successfully connects to the server, but the specific file or webpage the user wants does not exist at that address.
When a user visits a URL, their browser sends a request to your web server. If the content is available, the server sends back the requested resource with a 200 success code (although this is not visible). If the content is missing, the server returns the 404 Not Found code.
You might see this error message displayed in various ways:
- 404 Not Found
- Error 404
- Page Not Found
- The requested URL was not found on this server
This error code is client-side, meaning the issue is typically related to the requested URL or the removal of content, rather than a total server crash.
Read More: Most Common WordPress Errors and How To Fix Them
Stop 404 Errors Before They Hurt Your Website
Let Seahawk handle ongoing WordPress care, fixes, and maintenance so your site stays error free, secure, and optimized at all times.
How 404 Errors Affect User Experience and SEO
Why should you care about a few missing pages? The impact is twofold: user experience and search performance.
User Experience: Imagine a customer wants to buy a product. They click a link and land on an error page. They will likely leave your site immediately and visit a competitor.
Users have little patience for dead links. A high number of 404 errors creates a poor user experience, increases your bounce rate, and reduces the time users spend on your site.
SEO Impact: Search engine crawlers like Googlebot constantly scan your WordPress website. When they encounter a 404 error, they cannot index that content.
If search engines find many broken links, they may view your site as unreliable or poorly maintained. This can lower your rankings.
Furthermore, if an external site links to a post on your site that no longer exists, you lose the “link juice” or authority passed from that backlink.
Common Causes of 404 Errors on WordPress Websites
To fix a 404 error, you first need to understand what caused it. In a WordPress installation, these errors rarely happen without a reason.
Broken or Incorrect Permalink Structure
The most common culprit is the permalink structure. Permalinks are the permanent URLs for your posts and pages.
WordPress allows you to create custom URL structures (e.g., /post-name/ or /category/post-name/). If you change your permalink settings without setting up redirects, your old URLs will break. Sometimes, the rewrite rules simply fail, causing the web server to misinterpret the address.
Corrupted or Missing .htaccess File
The .htaccess file is a critical configuration file used by the Apache server. It handles how WordPress generates URLs and redirects. If this hidden file gets corrupted, deleted, or contains code syntax errors, your WordPress site may stop recognizing its own pages, resulting in site-wide 404 errors.
Plugin and Theme Conflicts Causing 404 Errors
WordPress relies on a vast ecosystem of plugins. Sometimes, a poorly coded plugin or a conflict between two plugins can interfere with the generation of URLs.
Security plugins or caching plugins, in particular, might inadvertently block access to a specific page. Similarly, switching to a new theme that supports custom post types without flushing rewrite rules can trigger errors.
Deleted Pages, Moved Content, or Incorrect URLs
If you delete a post or move it to a new URL (location) without notifying the server, the old URL becomes a dead end. This often happens during a site redesign.
Additionally, simple typos in internal links can direct users to a requested URL that does not exist.
Server, Cache, or Hosting Related Issues
Sometimes, the issue isn’t with your site, but with the server. If your web server runs out of memory or has strict security rules, it might return an error.
Furthermore, browser cache or server-side caching can serve an outdated version of a page that says “404,” even after you have fixed the problem.
Step-by-Step Guide to Fix 404 Errors in WordPress
Now that we have identified the causes, let’s solve the problem. Follow these steps in order.
Step 1: Back Up Your WordPress Website
Before you touch any WordPress files or database settings, create a full backup. You are about to edit core settings and files. If something goes wrong, you need a restore point. You can use plugins like UpdraftPlus or your hosting provider’s backup tool to save your WordPress content and database.
Step 2: Reset and Re-Save WordPress Permalink Settings
This is the easiest and most effective fix for sitewide 404 errors. It forces WordPress to update its rewrite rules in the .htaccess file.
- Log in to your WordPress dashboard.
- Go to Settings → Permalinks.
- Scroll to the bottom. Do not change anything.
- Click the Save Changes button.
This action flushes the rewrite rules. Check your website to see if the error message has been resolved.
Explore Further: How to Fix WordPress 400 Bad Request Error
Step 3: Check and Regenerate the .htaccess File
If saving permalinks didn’t work, your .htaccess file might be locked or corrupted. You will need to edit this manually using an FTP client (like FileZilla) or the File Manager in your hosting control panel.
- Connect to your server via FTP.
- Navigate to the root folder (usually public_html) containing your WordPress installation.
- Look for the .htaccess file. You may need to enable “Show hidden files” in your FTP client.
- Download a copy of the file to your computer as a backup.
- Delete the file from the server.
- Return to WordPress Settings → Permalinks and click ‘Save Changes’.
WordPress will try to generate a new, clean .htaccess file.
If WordPress cannot create the file automatically (often due to permissions), you must create it manually:
- Create a new file on your computer named .htaccess.
- Paste the default WordPress code:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
- Upload this file to your root folder via FTP.
Step 4: Fix Broken Internal and External Links
If only specific page URLs are throwing errors, the issue is likely broken links. You may have linked to an old page that you deleted.
- Audit your site. You can use tools to scan your links.
- Update the link to point to the correct new URL.
- If the external website you linked to is down, remove the link entirely.
Step 5: Disable Plugins to Identify Conflicts
If the error persists, a plugin might be the cause.
- Go to Plugins → Installed Plugins.
- Select all plugins and choose Deactivate from the bulk actions menu.
- Check your site. If the 404 errors disappear, a plugin is the culprit.
- Reactivate plugins one by one. Check your site after each activation to find the one causing the error code.
Step 6: Switch to a Default WordPress Theme
Theme functions can sometimes interfere with query variables.
- Go to Appearance → Themes.
- Activate a default theme, such as Twenty Twenty-Four.
- If this resolves the 404 page issue, your original theme likely has a coding error. You may need to contact the theme developer.
Step 7: Clear Browser, Plugin, and Server Cache
Caching stores static versions of your site to improve speed. However, it can store an error page and display it to users even after the site is fixed.
- Clear Browser Cache: Go to your browser settings and clear cache and cookies.
- Clean Plugin Cache: If you use a caching plugin, look for the “Clear Cache” option in the admin bar.
- Clear Server Cache: Many hosting providers have server-level caching. Check your hosting dashboard to flush this.
Step 8: Set Up 301 Redirects for Deleted or Renamed Pages
When you change a URL or delete a popular post, you must tell the browser where the content went. A 301 redirect permanently sends users from the old URL to the new location. This preserves your website’s SEO value.
You can use a plugin like “Redirection” to handle this easily.
- Install and activate the Redirection plugin.
- Go to Tools → Redirection.
- Enter the Source URL (the broken old URL).
- Enter the Target URL (the destination page).
- Click Add Redirect.
Now, when users or Google visit the old link, they are automatically taken to the correct page.
Step 9: Test URLs and Monitor 404 Errors
After applying fixes, verify your work. Visit the previously broken page that was requested. Navigate through different custom pages and categories. Ensure the found status code is 200 (Success) rather than 404.
How to Find and Track 404 Errors Using Google Search Console
You cannot fix what you cannot see. Google Search Console is the best free tool to track 404 errors that Google encounters while crawling your site.
- Log in to Google Search Console.
- Select your domain property.
- Navigate to the Indexing → Pages report.
- Look for the status: Not found (404).
- Click on it to see a list of every requested URL that returned an error.
Review this list regularly. Prioritize fixing errors on high-traffic pages or pages linked from other websites.
If the URL lists a random string or a page that truly longer exists, you can either redirect it or let it remain a 404 if it has no value.
Best Practices to Prevent 404 Errors in WordPress
Prevention is better than a cure. Maintaining a healthy WordPress site requires routine checks.
- Plan URL Changes: Never change a post name or permalink structure unless necessary. If necessary, set up 301 redirects immediately.
- Regular Audits: Utilize tools like the Broken Link Checker or Ahrefs to scan for dead links every month.
- Custom 404 Page: Create a helpful custom 404 page. Instead of a generic error message, provide a search bar, links to your best content, and a way to contact you. This keeps visitors on your web property even if they encounter an error.
- Update Plugins Cautiously: Test updates on a staging site before applying them to your live website.
- Clean Deleted Content: When you delete a page, check if other internal pages link to it and remove those references.
Conclusion
404 errors are an inevitable part of managing a website. Content gets moved, links break, and search engines crawl outdated paths. However, leaving them unchecked can hurt your credibility and SEO rankings.
By understanding the causes, ranging from a simple permalink structure glitch to a complex .htaccess file error, you can tackle them with confidence. Remember to back up your WordPress files first, check your settings, and use redirects to guide users to the right content.
Regular monitoring via Google Search Console ensures that you catch these error codes early. A well-maintained site tells users and Google that you value their time, transforming a potential “Page Not Found” disaster into a seamless browsing experience.
FAQs About Fixing 404 Errors in WordPress
A 404 not found error appears when a requested URL does not exist on your web page. This usually happens due to broken links, deleted content, or incorrect HTML or PHP file paths. Search engines view repeated page-not-found errors as a poor user experience, particularly across multiple websites.
How can I quickly resolve a 404 error in WordPress?
To fix a 404 error, first clear the cache at the browser and plugin levels. Then check permalinks, broken links, and WP content URLs. In many cases, resetting permalinks resolves the error without requiring file edits.
Should I create a custom 404 error page in WordPress?
Yes. A custom error page helps users navigate to other pages instead of leaving your website. A good example includes search, menu links, and helpful text written in HTML. This reduces bounce rates and improves SEO.
Are broken links harmful to search engines and rankings?
Yes. Broken links leading to a page not found error reduce crawl efficiency. Search engines may stop indexing important web pages if too many error pages exist across your site.
When should I use a custom error or redirect for 404 pages?
Use a custom error when the content no longer exists. Use redirects when the requested URL has been moved to another page. Note that incorrect redirects can also create new 404 page issues.
