How to Fix 404 Not Found Error in WordPress

When visitors land on your WordPress site and see a “404 Not Found” error, the experience can be confusing and off‑putting. A 404 error is an HTTP response code that signals the requested URL does not exist on the server. These broken links can hurt user experience, reduce credibility, and negatively impact SEO. That is why knowing how to fix 404 Not Found error in WordPress is essential for maintaining a professional, user-friendly website.

This guide will walk you through various methods, from quick browser tweaks to advanced server-level troubleshooting. You will learn how to edit the .htaccess file, adjust WordPress permalinks, resolve theme or plugin conflicts, and ensure your WordPress website runs smoothly and maintains strong search visibility.

What Causes 404 Errors in WordPress?

A 404 Not Found error occurs when the server cannot locate the requested URL. This can happen even when the WordPress site is working correctly. Common reasons include incorrect permalink settings, a missing .htaccess file, broken internal links, or an outdated browser cache.

Identifying the cause is essential to fixing the issue and ensuring that the solutions work effectively to prevent more 404 errors from affecting your WordPress website.

Deleted or Moved Pages Without Redirects

If you delete or move a WordPress post or page without setting up a 301 redirect, users will hit a 404 page. This confuses visitors and damages your SEO. Always redirect the old URL to the new or the exact location to maintain the link structure and keep the WordPress site healthy.

Incorrect Permalink Settings or Corrupted .htaccess File

Your WordPress URL relies on the structure defined in Settings > Permalinks. If the settings are misconfigured or the .htaccess file is missing or damaged, your permalink structure breaks, especially when attempting to edit the .htaccess file directly. As a result, your content may appear to vanish, and 404 errors will show on posts, pages, and category pages.

Server Configuration Issues

Sometimes, the server does not allow the .htaccess file to run correctly. This happens when mod_rewrite is disabled or the AllowOverride directive is set to None. These server-level problems, including file permission-related issues, prevent WordPress rewrite rules from working and lead to 404 errors across your WordPress website.

Plugin or Theme Conflicts

Poorly coded WordPress plugins or custom WordPress themes can interfere with your permalinks. They may alter URL rules or override your site’s default behavior, resulting in broken permalinks, incorrect routing, and frequent 404 errors on particular pages or category pages.

Browser Cache or Cookies

An outdated browser cache or corrupted cookies can cause the browser to load a missing page even after fixing it. This makes it look like the 404 Not Found error still exists. Clear browser cache regularly or test your WordPress website in incognito mode to confirm the issue is resolved.

Read More: How to Fix Database Errors in WordPress

Quick Fixes for 404 Error in WordPress

Before diving into advanced settings, try these simple troubleshooting steps. These quick fixes often resolve the 404 Not Found error without needing to touch your server or code.

Clear Browser Cache and Cookies

Sometimes, the browser cache stores an outdated version of a WordPress site, showing a 404 error even after the issue is fixed. Clearing the cache forces the browser to fetch the latest content from the server, helping resolve 404 errors that only appear on your device.

• In Chrome: Go to Settings → Privacy → Clear browsing data.
• Try viewing your site in incognito mode to bypass cached files.
• Delete site cookies to prevent old session data from causing issues.

If you are troubleshooting your site, clear the cache on all browsers and devices. This step is simple but often overlooked.

Double-check the URL

Many 404 errors occur due to a simple incorrect URL. Typos, wrong slashes, or extra characters in the requested URL can lead to broken links. Always verify that the WordPress URL in the browser matches your intended WordPress posts or pages, especially when using a text editor for manual edit.

• Check for case sensitivity in the slug (e.g., /About is not /about).
• Confirm that category pages or custom slugs use the correct permalink structure.
• Review internal links pointing to an old URL that may no longer exist.

This quick step saves time and helps confirm whether the issue is with the site URL or something more profound, like rewrite rules or the .htaccess file.

Explore Further: Common WordPress Issues and How to Fix Them

Troubleshooting Permalink Settings

Broken WordPress permalinks often trigger 404 errors across posts, pages, and category archives. These issues are typically easy to fix with simple steps inside your admin dashboard.

Resave Permalinks

Start by logging into your WordPress admin dashboard and heading to Settings → Permalinks. Without changing anything, click the “Save Changes” button. This action clears outdated rewrite rules and refreshes your WordPress site’s permalink structure. It is one of the quickest ways to fix broken links and restore access to your WordPress posts and other pages.

Switch to “Plain” Then Back

If resaving does not fix the issue, change the structure to “Plain” and save. Then switch back to your preferred format, such as “Post name” or a custom structure, and click save again.

This forces WordPress to fully rebuild rewrite rules and often resolves 404 not found errors caused by stale or broken permalink logic.

Review Custom or Custom Post Type URLs

Your permalink structure may need manual tweaks when using custom post types or plugins that register new content types. Manually ensure the generated URLs match what is expected in your .htaccess file. Check that WordPress permalinks settings support those URLs and the rewrite settings are not missing or incorrect in your PHP file or plugin configuration.

Fixing .htaccess File Issues

The .htaccess file is a core configuration file that controls how your WordPress site handles permalinks and redirects. If it is missing, corrupted, or misconfigured, you may see a 404 Not Found error in WordPress. Fixing this file can often resolve broken permalinks, redirect failures, and server-level 404 errors.

Locate and Backup .htaccess

Before making any changes, always locate and download the current .htaccess file as a backup. You can use an FTP client like FileZilla or your hosting provider’s file manager. This ensures that you can restore the original file without losing site functionality if something goes wrong. The file is typically located in the root folder of your WordPress site next to wp-config.php and index.php.

Regenerate via Dashboard

If your site throws 404 errors due to broken WordPress permalinks, regenerating the .htaccess file through the admin dashboard can help. First, ensure the file has the correct file permissions; set them to 666 temporarily.

Then go to Settings → Permalinks and click Save Changes. This tells WordPress to write the proper rewrite rules back into the file. After saving, reset the file permissions to 644 for better security.

Paste Default WordPress Rules

You can manually restore the file using a plain text editor if it is corrupted or missing. Open the .htaccess file manually or create a new one in the exact location.

Paste in the default WordPress rewrite rules shown below. These rules ensure your WordPress URL structure works correctly, especially for WordPress posts, pages, and category pages.

apache

# 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 server via your FTP client or file manager. This step helps fix 404 not found errors and restores the expected behavior of your WordPress site’s permalink structure, especially after a new redirection has been set.

Server‑Level Configuration

Even with correct settings inside WordPress, server misconfigurations can cause 404 errors. WordPress relies on Apache or NGINX to process rewrite rules, and URLs can break if those servers are not correctly configured.

This section focuses on backend-level fixes for WordPress sites running on Apache or NGINX. These solutions require some technical access or help from your hosting provider, but they can be crucial for restoring full site functionality.

Verify mod_rewrite

The mod_rewrite module in Apache is essential for enabling custom permalinks on a WordPress website. Without it, your site may default to bare URLs and throw 404 errors for all custom structures. To check, create a phpinfo() file and upload it to your server using an FTP client.

Open it in a browser and search for “mod_rewrite” in the output. If it is missing, contact your hosting provider to enable it. This module supports WordPress rewrite engine functionality and is critical for permalink management.

Ensure AllowOverride All in Apache

Even if mod_rewrite is active, Apache needs permission to use the .htaccess file. This permission comes from the AllowOverride directive in the server’s configuration file. If set to None, Apache ignores all rules in the .htaccess file manually placed in your site directory.

Your WordPress permalinks will fail, causing 404 errors. You can update this by editing the Apache configuration and changing AllowOverride None to AllowOverride All. Restart Apache to apply changes. If unsure, ask your hosting provider to adjust it for your live server.

NGINX Considerations

Unlike Apache, NGINX does not use an .htaccess file directly. If your WordPress site is hosted on NGINX, all rewrite rules must be placed in the server configuration block. You’ll need root access or help from your hosting provider.

For example, to support clean URLs, add location blocks that redirect all requests to index.php. Missing this setup causes WordPress 404 page not found errors across posts and category pages. Ensure your NGINX config mirrors the URL structure in your WordPress settings permalinks.

Read More: How to Resolve 500 Internal Server Error in WordPress

Plugin and Theme Conflicts

WordPress plugins and themes are powerful, but they can also cause unexpected issues. One misconfigured plugin or a line of faulty code in a theme can disrupt your WordPress site and trigger 404 errors.

Disable All Plugins

Plugins extend WordPress functionality, but they can also interfere with rewrite rules or create broken permalinks. If you notice 404 errors across multiple pages, your first step should be to disable plugins. Go to your admin dashboard, navigate to Plugins, and deactivate all active plugins.

Once disabled, test your site’s URLs. If the 404 not found error in WordPress disappears after you disable plugins, you’ve isolated the cause. Reactivate your plugins one at a time, testing after each, to pinpoint the exact plugin causing the issue.

Some plugins, especially those related to redirects, SEO, or caching, tend to interfere with the .htaccess file or URL rewriting. Removing or replacing the problem plugin can often fix the WordPress 404 error for good.

Switch to Default Theme

Sometimes, the issue lies not in the plugins, but in the theme. Custom WordPress themes often include unique rewrite logic or poorly coded templates that break your WordPress permalinks; in such cases, consult a WordPress developer.

To rule this out, activate a clean default theme like Twenty Twenty-Three. You can do this under Appearance → Themes in your dashboard. Once the theme switches, check if the 404 errors persist.

If the problem resolves, your original theme likely contained an incorrect file or conflicted with the WordPress rewrite engine. This could involve improperly defined slugs, missing templates, or issues handling category pages or custom structures.

In such cases, consult your theme developer or hire a WordPress developer to fix the faulty code without losing your design.

Check Custom Code Snippets

It’s common for developers to place redirect logic or custom URL handling inside the functions.php file. However, even a small mistake in these PHP files can disrupt how your WordPress site resolves URLs.

Review any custom code you have added for redirects, rewrites, or dynamic URL management. If you see references to add_rewrite_rule or wp_redirect, double-check their accuracy. Faulty logic here can override WordPress rewrite rules and cause a 404 Not Found error on particular pages or archive views.

Also, check any custom plugins you may have developed or installed. Commenting out recent code changes temporarily can help isolate issues. If the site works correctly after doing so, revise the code and test thoroughly before reactivating.

When in doubt, move custom code to a site-specific plugin or consult a professional to avoid long-term issues.

Also Learn: How to Fix a 400 Bad Request Error: Quick Ways to Fix it

Redirect Strategies for Deleted or Moved Content

Deleting or moving content without planning can lead to broken links and 404 errors. Fortunately, WordPress gives you several reliable ways to redirect old traffic to the right place and protect your SEO.

Set Up 301 Redirects

A 301 redirect is a permanent signal to search engines and browsers that a page has moved to a new location. Use this anytime you delete content, change your site URL, or restructure WordPress posts or pages.

You can set up redirects by editing the .htaccess file manually, especially if you are comfortable with code. Alternatively, use a WordPress plugin like Redirection, which allows you to manage redirects from the dashboard without touching code.

For example, if you deleted a post but have a newer version elsewhere, redirect the old URL to the updated one. This helps maintain link equity, improves user experience, and prevents Google from indexing 404 Not Found pages.

Effective redirect management ensures your WordPress website stays clean, accessible, and SEO-friendly.

Custom 404 Page Design

Even with the best strategies, some users will land on missing pages. Instead of a generic error message, guide them back to valuable content with a custom 404 page.

Include clear navigation elements like a search bar, recent posts, category lists, or links to other pages. You can also add a friendly message explaining the error and inviting users to explore your site.

Custom 404 pages reduce bounce rates and increase time-on-site. They turn a potentially frustrating moment into a positive interaction with your WordPress site.

Design the page using your theme’s template files or a plugin. Be sure it follows your branding and offers value. A well-built 404 page can even earn backlinks and help maintain your site’s SEO performance.

Advanced Troubleshooting and Hosting Support

If standard fixes do not resolve your 404 Not Found error in WordPress, deeper technical diagnostics are the next step. This involves server logs, debug tools, and possible help from your hosting company.

Use Google Search Console

Google Search Console is your best tool for identifying crawling and indexing issues. If your site has 404 errors, they will appear under the “Coverage” section, flagged as “Not Found.”

This tool shows the exact requested URL causing the error. From there, you can verify if it is due to a broken link, missing page, or outdated internal link. Use this data to create 301 redirects, update links, or restore deleted content.

Search Console also notifies you when new errors appear, making it easier to maintain long-term site health. Combine it with URL Inspection to see how Googlebot views your pages.

If your WordPress website is indexed improperly, this tool can help you resolve the issue quickly and improve crawl efficiency.

Enable Logging and Debug Mode

To understand what’s going wrong under the hood, enable debugging in WordPress. Open wp-config.php and set WP_DEBUG to true. This allows WordPress to display errors related to the permalink structure, file permission-related issues, or misbehaving plugins.

Also, check your server’s error logs using cPanel or your hosting control panel. Logs reveal which PHP file or rewrite rule triggered the HTTP error, helping you find root causes quickly.

Look out for errors in processing .htaccess, incorrect path references, or restricted permissions. These signs can indicate why the .htaccess file or rewrite rules are not working as expected.

Use logs in combination with debug mode for a complete picture. If you cannot access logs yourself, your hosting provider can help retrieve them.

Related: How to Fix HTTP 501 Not Implemented Error in WordPress

Consult Your Hosting Provider

Sometimes the issue is deeper than WordPress. If you’ve tried all the above solutions and the problem persists, it is time to call your hosting provider.

Your host can check if essential modules like mod_rewrite are enabled and whether file permissions are set correctly. They can also confirm if .htaccess is being read or blocked due to a misconfigured live server or local server environment.

If you recently moved to a new host, the problem could be due to missing dependencies or incorrect Apache settings. Let the support team inspect your configuration files and server logs, or even update your server environment to resolve the issue.

A reliable host with responsive support is crucial for effectively maintaining your WordPress website.

Preventive Measures and Best Practices

A little maintenance goes a long way in keeping your WordPress site error-free. These practices reduce the chances of 404 errors and boost your site’s performance and SEO health.

Update WordPress Core, Themes, and Plugins

Outdated software can create unexpected compatibility issues and lead to broken permalinks or inaccessible content. Updating your WordPress core, themes, and plugins ensures better security, compatibility, and smoother functioning of rewrite rules and page routing.

Set Up 301 Redirects for Moved or Deleted Content

Removing or relocating content without a proper redirect leaves behind broken links and triggers a 404 error message. Consistently implement a 301 redirect via a plugin or by editing your .htaccess file manually to guide visitors and search engines to the correct location.

Recheck Permalink Settings After Structural Changes

Modifying your WordPress permalinks, site structure, or URL settings can disrupt routing and result in 404 errors. After making changes, go to Settings → Permalinks in your admin dashboard and click Save Changes to regenerate rewrite rules and refresh the site’s internal link structure.

Run Routine Audits with Google Search Console and Plugins

Identifying broken links or missing pages early prevents user experience and SEO damage. Use tools like Google Search Console or the Broken Link Checker plugin to routinely scan your WordPress website and avoid potential issues before they impact visitors.

Conclusion

Maintaining a healthy WordPress site starts with consistency and proactive monitoring. Clear your browser cache, regularly update plugins and themes, and ensure your .htaccess file is correctly configured. A quick permalink refresh can also fix many rewrite rule issues before they cause trouble.

Use tools like Google Search Console and error logs to stay informed. Set up proper redirects for any removed or moved content to avoid 404 errors. Lastly, a custom 404 page helps guide users to relevant content, improving navigation and site engagement.

FAQs About How to Fix 404 Not Found Error in WordPress