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403 vs 404 Error Code: What’s the Difference and How to Fix Them?
If you are comparing 403 vs 404 error codes, the short answer is simple: a 403 Forbidden error means the page or file exists but the server is refusing access, while a 404 Not Found error means the requested URL cannot be found at all.
That distinction matters for SEO, troubleshooting, and user experience. A 403 usually points to permissions, security rules, or access restrictions. A 404 usually points to deleted pages, broken links, bad URLs, or missing resources. In this guide, we explain the difference clearly, show common causes, and walk through the best ways to fix both errors on WordPress and other websites.
403 vs 404 Error Code: Quick Comparison
| Error code | What it means | Typical cause | Best first fix |
|---|---|---|---|
| 403 Forbidden | The resource exists, but the server will not allow access. | Permissions, firewall rules, blocked IPs, missing login, protected content | Check permissions, security rules, authentication, and server config |
| 404 Not Found | The resource cannot be found at the requested URL. | Broken links, deleted pages, wrong URL, missing media, bad redirect | Check the URL, restore the page, or create a 301 redirect |
What Is a 403 Forbidden Error?
What it means
- A 403 error means the server understood the request but is refusing to authorize access.
- The page, folder, or file usually exists, but your current user, role, IP address, or request is not allowed to open it.
Common causes of a 403 error
- The page requires authentication, but the visitor is not logged in.
- File or directory permissions are incorrect on the server.
- The server is blocking specific IP addresses or user agents.
- A firewall, CDN, or security plugin is denying the request.
- Access rules in
.htaccess, NGINX config, or hosting settings are too strict. - Directory browsing is disabled and no default index file exists.
How to fix a 403 Forbidden error
- Check file and folder permissions. On many Linux servers, folders are often set to
755and files to644. - Confirm that the visitor or logged-in user has the right permissions to view the resource.
- Review security plugins, firewall rules, or CDN protections that may be blocking access.
- Inspect
.htaccess, NGINX rules, or host-level access settings for deny directives. - Temporarily disable a recent plugin or security rule if the error started after a change.
- Clear site cache, server cache, and CDN cache after making changes.
Also Read: Step-by-Step Guide to Build a Social Network on WordPress
What Is a 404 Not Found Error?
What it means
- A 404 error means the server cannot find the requested page or file at that URL.
- Unlike a 403, the issue is usually not access denial. The resource is missing, moved, deleted, or linked incorrectly.
Common causes of a 404 error
- The URL was mistyped by the visitor.
- A page or post was deleted or moved without a proper redirect.
- Internal links or external backlinks point to an old or incorrect URL.
- Media files, category archives, or custom post type URLs are no longer available.
- WordPress permalink settings changed and old URLs were not redirected.
How to fix a 404 Not Found error
- Double-check the URL for typos.
- If the page moved, add a
301 redirectfrom the old URL to the new one. - Restore deleted content if the page should still exist.
- Update broken internal links in menus, blog posts, and archive pages.
- Resave permalink settings in WordPress if URL routing broke after a migration or plugin change.
- Use crawl tools or Google Search Console to find and fix recurring 404s.
403 vs 404: The Main Difference
403 Forbidden means the server knows exactly what you are trying to access, but it will not let you in.
404 Not Found means the server cannot find the thing you asked for in the first place.
That is the key difference for both humans and search engines. A 403 signals restricted access. A 404 signals missing content.
Which Error Is Worse for SEO?
Neither error is automatically disastrous, but both need to be managed correctly.
- A few 404s are normal on most websites, especially after content updates or URL changes.
- Too many 404s on important pages can waste crawl budget, damage user experience, and cause ranking losses if valuable URLs disappear.
- A 403 on public pages can be more serious if search engines or users are blocked from content that should be accessible.
If a page should exist and be publicly visible, neither a 403 nor a 404 is ideal. In that case, restore the page, fix permissions, or redirect the old URL correctly.
How 403 and 404 Errors Affect WordPress Sites
On WordPress websites, 403 and 404 errors usually come from a small set of technical issues:
- Plugin conflicts
- Broken permalink rules
- Incorrect file permissions
- Security plugin or firewall rules
- Migrated or deleted pages without redirects
- Theme or custom code changes
If your WordPress site starts throwing these errors after an update, migration, or server move, review recent changes first. In many cases, the fix is faster than it looks. You may also need to troubleshoot related plugin or configuration issues if the error appeared after a setup change.
Best Practices to Prevent 403 and 404 Errors
- Monitor broken links regularly.
- Use 301 redirects when changing slugs or deleting important content.
- Audit file permissions after migrations and manual uploads.
- Review firewall and security plugin logs when visitors report access problems.
- Test login-protected and public pages separately.
- Keep a recent site backup before editing server configuration files.
FAQ: 403 vs 404 Error Code
Is 403 the same as 404?
No. A 403 means access is denied. A 404 means the page or file cannot be found.
Can a 403 error hurt SEO?
Yes, if search engines are blocked from pages that should be public. Private or intentionally restricted pages are different.
Should I redirect all 404 pages?
No. Redirect only when there is a relevant replacement page. If the content is permanently gone and has no equivalent, a 404 can be acceptable.
What is the fastest fix for a WordPress 404?
Check the URL first, then resave WordPress permalinks, and add a 301 redirect if the page moved.
What is the fastest fix for a WordPress 403?
Check file permissions, login/access rules, security plugins, and server configuration.
Final Thoughts
When comparing 403 vs 404 error codes, remember this rule: 403 = blocked access, 404 = missing resource. Once you understand that distinction, diagnosing the problem gets much easier. For website owners, the practical priority is to protect public pages from accidental access restrictions, clean up broken links quickly, and use redirects where they make sense.
If you manage a WordPress site, regular technical reviews can prevent both errors from becoming bigger SEO or usability problems later.
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