Nikto
Long-standing web server scanner for dangerous files and misconfig.
What it does
Nikto tests your web server against thousands of checks for dangerous files and scripts, outdated server software, insecure server options, and common misconfigurations that leave a server exposed.
What data you get
A checklist-style report of every issue found on the server — risky default files, missing security headers, outdated versions — with references to the relevant advisories.
Why it matters to your site
It catches the low-hanging server-level problems that automated attackers probe for first, so you can close them before they become an easy way in.
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