How do I fix a "503 Service Unavailable" error? Print

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A 503 means the server is temporarily unable to handle the request — usually overload, a restart, or maintenance mode. Refresh after a minute first.

For WordPress, a stuck update leaves a .maintenance file in public_html; delete it in cPanel File Manager.
Check cPanel Resource Usage — if you are hitting CPU, memory, or entry-process limits, requests get queued and return 503.
Disable a heavy or misbehaving plugin/cron that is spiking load.
Clear your browser and CDN cache to remove a cached 503.

If your resource graphs are normal and the 503 persists site-wide, the cause is likely server-level — open a ticket.

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