OpenClaw: 503 Service Temporarily Unavailable (dns)
Common message
503 Service Temporarily Unavailable
Symptoms
- Site can't be reached (NXDOMAIN) after deploy
- Old IP still returned by resolver
- Propagation differs by ISP/region
Root cause
DNS record missing or stale cache
Fix
- Confirm record exists in the authoritative zone and TTL is reasonable.
- Verify delegation for subzone apps.yamify.co if used.
- Wait for negative cache expiry if NXDOMAIN was recently cached.