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Causes, Fixes, and Prevention

Can you SSH into the server?

Is the hosting control panel accessible?

If the server is offline:

Restart it

Open Source
Contact your hosting provider

Check server status pages

Step 2: Restart the Web Server
Restart your web server software:

Apache

Nginx

LiteSpeed

This often resolves temporary crashes or memory issues.

Also check:

Error logs

Access logs

System logs

Computer Servers
Look for crashes, segmentation faults, or fatal errors.

Step 3: Whitelist Cloudflare IP Addresses
Cloudflare publishes a list of IP ranges used by its network. These must be allowed through your firewall.

Actions to take:

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