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.

Overview

Operated By Nmap
Source Official Website
Expected To Follow Robots.txt Yes
Insights Last Updated August 11, 2026

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Category

Security Scanner
Scans websites for security vulnerabilities, threats, and configuration weaknesses

Expected Behavior

Nmap Scripting Engine's cadence depends on who directed it to your site. Continuous monitoring may run daily or hourly, while a one-time assessment typically sweeps once and disappears.

Nmap Scripting Engine's User Agent

User Agent Mozilla/5.0 (compatible; Nmap Scripting Engine; https://nmap.org/book/nse.html)

How To Block Nmap Scripting Engine With Robots.txt

Add this rule to your robots.txt file to block Nmap Scripting Engine from accessing your entire website, or use Automatic Robots.txt to block all security scanners at once. 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: /

Global Statistics for Nmap Scripting Engine

As of August 11, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.

Robots.txt Blocked Percentage

0%
0% of top websites are blocking Nmap Scripting Engine
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Country of Origin

United States
Nmap Scripting Engine normally visits From the United States

Robots.txt Blocking Trend

0% of top websites block Nmap Scripting Engine in their robots.txt files.

Overall Security Scanner Traffic

0.0% of all web traffic came from security scanners.

Top Visited Website Categories

Finance
Sports
Jobs and Education
Online Communities
Computers and Electronics

The types of websites most frequently visited by Nmap Scripting Engine.

Frequently Asked Questions

Should I Block Nmap Scripting Engine?

Usually not, unless you already run your own security scans and want cleaner logs. Nmap Scripting Engine checks for exposed vulnerabilities, and some services report their findings to site owners at no cost. Almost none of the top websites we track currently have robots.txt rules for Nmap Scripting Engine.


Does Nmap Scripting Engine Follow Robots.txt Rules?

Yes. Nmap Scripting Engine is expected to follow robots.txt directives, so a disallow rule is the appropriate first step. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether Nmap Scripting Engine respects it.


Does Nmap Scripting Engine Access Private Content?

It deliberately looks for exposed private content. Nmap Scripting Engine tests login pages, admin panels, and API endpoints for vulnerabilities. Probing does not mean it gained access, but you should 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 an internet-wide sweep or because someone requested an assessment of your domain. Recurring visits often indicate that a monitoring service has added your site to its checks.


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 bursts of requests to uncommon paths that ordinary visitors rarely access. Because Nmap Scripting Engine does not publish a verification method, any client can claim its identity and a log match is only a clue.