CSF Optimizer

Upload your csf.conf, tell us a bit about your server, and get tailored performance recommendations — plus a ready-to-run script or updated file to apply them.

Tell us about this server

Primary role

Shared hosting

cPanel / WHM / DirectAdmin / Plesk, many domains

Mail server

Heavy SMTP / IMAP / POP3 traffic

High-traffic web app

Single site/app, VPS or dedicated

Database / internal

Mostly internal traffic, few public ports

General purpose VPS

Low-to-moderate traffic, mixed use

Server RAM

Is ipset installed?

Check with ipset -v if unsure.

Behind a CDN/proxy?

Do you use large external block lists?

e.g. the Firewall IPs shared blacklist, Spamhaus, or similar via csf.blocklists

Yes

Upload your csf.conf

Usually at /etc/csf/csf.conf. Nothing is stored — your file is processed for this one request only and discarded immediately after.