When you migrate a WordPress site to a new server or domain, you may encounter 404 errors on posts and pages. This happens when permalink structures break during the move. Here are the common causes and how to fix them:

✅ Common Causes & Solutions:

1. Permalink Settings Not Refreshed
   ➡️ Cause: After migration, WordPress doesn’t automatically update the permalink structure.
   ➡️ Solution:

• Go to Settings > Permalinks in your WordPress dashboard.

• Click “Save Changes” without modifying anything.
  This refreshes the rewrite rules and often resolves the issue instantly.

1. .htaccess File Missing or Incorrect
   ➡️ Cause: The .htaccess file may not have transferred properly or may be misconfigured.
   ➡️ Solution:

• Ensure the .htaccess file exists in your site’s root directory.

• Replace it with the default WordPress .htaccess content:

# 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

Still seeing 404s?

• Try deactivating and reactivating your theme or plugins.

• Use a plugin like Better Search Replace to update URLs after migration.

If the issue persists, contact your hosting support or seek help from a developer.