Network & services
No plaintext FTP
Databases, remote access and other services reachable from the internet; blocklist status.
Why it matters
FTP logins travel in clear text and are captured by anyone on the path; FTP servers are also a frequent brute-force target.
How to fix it
Moderate · a few hours- Switch file transfers to SFTP (built into SSH) or FTPS.
- Close port 21 in the firewall.
ufw
sudo ufw deny 21/tcp
How we test it
The check runs from the public internet as part of every scan, read-only and without touching your data. If it fails, your report shows the evidence that proves it - the record, header, file or banner we observed - together with the fix above, tailored to the issue we found.
Does your domain pass this check?
Run all 97 checks in about a minute. Your first scan is free, with the complete fix for your most urgent finding.
Scan your domain free