All-in-One WP Migration plugin review and common issues

The 512MB free limit is enforced by the plugin, but server PHP limits may also restrict upload size independently. To increase the PHP upload limit, add these lines to your .htaccess or php.ini: upload_max_filesize = 512M, post_max_size = 512M, memory_limit = 512M, max_execution_time = 300. If your host does not allow this, contact support — many hosts can adjust limits on request. Alternatively, the Unlimited extension bypasses the free size cap and also works around server upload limits by using a chunked upload approach.

URL issues after migration usually indicate the domain replacement did not complete correctly. All-in-One WP Migration handles this automatically for most cases, but some themes or plugins store URLs in non-standard formats that the replacement misses. After import, run a manual search-and-replace using Better Search Replace to find and replace the old domain with the new one across all database tables. Also clear all caches after the replacement.

Stuck imports are usually caused by PHP timeout limits or memory exhaustion during the import process. Solutions: (1) increase max_execution_time to 300+ seconds in PHP settings; (2) increase memory_limit to 512M or higher; (3) if the import file is very large, try the FTP extension which uploads files directly to the server without going through PHP. Check your PHP error log for specific error messages that identify the exact failure point.

All-in-One WP Migration exports the entire site as a single bundle — it does not support exporting database only or files only. For database-only transfers, use phpMyAdmin (export as SQL, import on the destination) or a plugin like WP Migrate DB that specializes in database-only migrations. For files-only transfers, FTP or rsync are more appropriate. All-in-One WP Migration’s value is in its all-in-one simplicity — granular component-level control requires different tools.

Multisite migration requires the All-in-One WP Migration Multisite Extension (sold separately). With it enabled, you can export either the entire multisite network or individual subsites as standalone single-site WordPress installations. Multisite migrations are complex — table prefixes, subdomain/subdirectory configurations, and plugin network activations all require verification after migration. Always test on a staging environment before migrating a production multisite.

Yes, with the standard precaution of having a current backup before starting. All-in-One WP Migration does not modify the source site during export — it only reads data. The risk is on the destination server during import. Always test the imported site thoroughly before pointing DNS to the new server. Keep the old site live until the new one is confirmed working.

The 512MB limit is a business model decision — the Unlimited extension at $69 is one of ServMask’s primary revenue sources. The limit also reflects practical constraints: very large imports via browser upload are unreliable. The Unlimited extension uses a more robust upload mechanism that handles multi-gigabyte sites.

No — it is designed for manual, one-off migrations. It has no scheduling, no incremental backup, and no retention management. For automated backups, use UpdraftPlus, Duplicator, or BackupBuddy. All-in-One WP Migration and a backup plugin serve complementary purposes and can be used on the same site.

Start by checking whether another plugin already does the same job. In most cases, overlap is what creates avoidable conflicts and performance issues. A common issue is installing a plugin because it looks convenient without checking the stack first. From experience, a short compatibility review avoids most of the pain later.