What is Sucuri?

Sucuri crawls websites to detect malware, security vulnerabilities, and blacklist status as part of its cloud-based website security platform and malware removal services. Agent Analytics can track when it visits your website.

Category

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

Expected Behavior

Sucuri'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 Sucuri
Expected To Follow Robots.txt Yes
Insights Last Updated July 6, 2026

Robots.txt Blocked Percentage

0%
0% of top websites are blocking Sucuri
Learn How →

Country of Origin

United States
Sucuri normally visits From the United States

Robots.txt Blocking Trend

As of July 6, 2026, 0% of top websites block Sucuri in their robots.txt files.

Overall Security Scanner Traffic

As of July 6, 2026, 0.0% of all web traffic came from security scanners.

Top Visited Website Categories

Law and Government
Autos and Vehicles
Travel and Transportation
Home and Garden
Finance
Track Security Scanners Visiting Your Website
Use Agent Analytics to get realtime visibility into visits from every crawler, scraper, and AI agent.

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.

Sucuri's User Agent

User Agent Sucuri-UptimeMonitoring

Access other known user agents and IP addresses using the Enterprise API.

How To Block Sucuri

Add this rule to your robots.txt file to block Sucuri from accessing your entire website. You can customize which pages are blocked by swapping out / for a different path.

User-agent: Sucuri # https://knownagents.com/agents/sucuri
Disallow: /
Block Every Security Scanner
⚠️ Manually adding individual robots.txt rules is not scalable. Instead, use Automatic Robots.txt.

Frequently Asked Questions

Should I Block Sucuri?

Not unless you already run your own scanning and want cleaner logs. Sucuri 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 Sucuri right now.

Does Sucuri Respect Robots.txt?

Yes. Sucuri 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 Sucuri actually honors it.

Does Sucuri Access Private Content?

It probes for private content deliberately. Login pages, admin panels, and API endpoints are exactly what Sucuri 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 Sucuri Visiting My Website?

Sucuri 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 Sucuri Is Visiting My Website?

Agent Analytics tracks Sucuri 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 "Sucuri". Look for probes of login, admin, and API paths. Keep in mind that Sucuri 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.

References