What is Nmap Scripting Engine?
Nmap Scripting Engine is a component of Nmap, a free and open source network discovery and security auditing tool. It scans networks and hosts to determine available services and system characteristics during security audits conducted by administrators and security professionals. Agent Analytics can track when it visits your website.
Category
Expected Behavior
Nmap Scripting Engine's pattern depends on who pointed it at you. Continuous monitoring services check daily or even hourly, while a one time assessment sweeps once and disappears. Expect requests aimed at login pages, admin paths, APIs, and configuration files, because exposed ones are what scanners exist to find.
Overview
| Operated By | Nmap |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | July 6, 2026 |
Robots.txt Blocked Percentage
Country of Origin
Robots.txt Blocking Trend
As of July 6, 2026, 0% of top websites block Nmap Scripting Engine in their robots.txt files.
Overall Security Scanner Traffic
As of July 6, 2026, 0.0% of all web traffic came from security scanners.
This data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the world's top 1000 websites and their robots.txt files.
Nmap Scripting Engine's User Agent
| User Agent | Mozilla/5.0 (compatible; Nmap Scripting Engine; https://nmap.org/book/nse.html) |
Access other known user agents and IP addresses using the Enterprise API.
How To Block Nmap Scripting Engine
Add this rule to your robots.txt file to block Nmap Scripting Engine from accessing your entire website. You can customize which pages are blocked by swapping out / for a different path.
User-agent: Nmap Scripting Engine # https://knownagents.com/agents/nmap-scripting-engine
Disallow: /Frequently Asked Questions
Should I Block Nmap Scripting Engine?
Not unless you already run your own scanning and want cleaner logs. Nmap Scripting Engine checks websites for exposed vulnerabilities, and some scanning services report what they find to site owners for free. Almost none of the top websites we track have robots.txt rules for Nmap Scripting Engine right now.
Does Nmap Scripting Engine Respect Robots.txt?
Yes. Nmap Scripting Engine is expected to honor robots.txt rules, so a disallow rule is the right first move. Automatic Robots.txt adds and maintains that rule for you, and Agent Analytics confirms Nmap Scripting Engine actually honors it.
Does Nmap Scripting Engine Access Private Content?
It probes for private content deliberately. Login pages, admin panels, and API endpoints are exactly what Nmap Scripting Engine tests, because exposed ones are what it exists to find. Probing is not the same as getting in, but expect requests to sensitive paths in your logs.
Why Is Nmap Scripting Engine Visiting My Website?
Nmap Scripting Engine is scanning your site for vulnerabilities, either as part of a sweep across the whole internet or because someone requested an assessment of your domain. Recurring visits usually mean a monitoring service has you on its list.
How Can I Tell if Nmap Scripting Engine Is Visiting My Website?
Agent Analytics tracks Nmap Scripting Engine visits in real time alongside every other known AI agent, crawler, and scraper. You can also check your server logs for requests whose user agent string contains "Nmap Scripting Engine". Look for probes of login, admin, and API paths. Keep in mind that Nmap Scripting Engine doesn't publish a verification method, so any client can claim its user agent string and a log match is a hint rather than proof.