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infoWordPress Core•error404swap_horizrewritealt_routerouting•labelCommon•check_circleEasy

404 Not Found

WordPress returns a 404 Not Found error when it fails to locate the requested resource. The request passes through the web server, then WordPress parses the URL against its rewrite rules. If the rules do not match a post, page, custom type, or static file, WordPress sends a 404 response.

Typical triggers include changed permalinks, missing .htaccess rules, deleted content, or conflicting rewrite rules from a theme or plugin. Server‑level missing files also cause the web server to return 404 before WordPress runs.

Symptoms

[dashicons-warning]
Error page displayed
You see a blank or themed page saying 404 Not Found
[dashicons-admin-links]
Broken navigation links
Menu items or breadcrumbs lead to the error page
[dashicons-format-image]
Missing media
Images or PDFs fail to load and show a broken icon
[dashicons-search]
Search engine result leads to 404
Clicking a result in Google opens a 404 page

Common Causes

Mismatched permalinks
Permalink settings do not align with the stored rewrite rules
Corrupt .htaccess
.htaccess file lacks the default WordPress rewrite block
Deleted content
Post, page, or custom type no longer exists in the database
Rewrite conflicts
Theme or plugin registers rules overriding core rewrites
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