Free Website Security & Vulnerability Scanner
Run a free website security scan to check SSL/TLS configuration, security headers, cookie settings, DNS exposure, mixed content, and common website misconfigurations, no account required.
Using DarkScout is subject to the terms and conditions
50K+
websites scanned
10s
average scan time
120+
security tests
Stay Ahead of Website Vulnerabilities
See how DarkScout scans and analyzes your website security.
What Is a Website Security Scan?
A website security scanner is an automated online tool that checks your website for security flaws, configuration errors, and vulnerabilities. It runs a full website security scan to analyze and examine SSL certificates, security headers, cookies, and other technical parameters. A website vulnerability scanner is useful in detecting potential threats and strengthening your site's defenses before hackers can exploit them.
Why Is Website Security Important?
One website vulnerability can cause blacklisting by Google, malware distribution, data breaches, and damage to your reputation. If vulnerabilities exist on your website, hackers can use them to steal data, inject malicious code, or cause service disruptions. Website security scanning with a good website security checker will help you avoid breaches and remain compliant, trusted, and search engine friendly.
How Does Darkscout’s Free Website Vulnerability Scanner Work?
Darkscout’s free website vulnerability scanner works instantly online.
1. Enter your domain into the website URL checker.
2. The tool performs an automated website security scan.
3. You receive a detailed security score and recommendations.
This free web vulnerability scanner analyzes SSL configuration, HTTP headers,
and other key security factors, providing fast results without installation.
What Types of Web Vulnerabilities Can the Online Web Vulnerability Scanner Detect?
DarkScout's online website vulnerability scanner detects missing or misconfigured security headers, weak SSL/TLS protocols, insecure cookie flags, server information disclosure, DNS gaps that enable email spoofing, open redirect signals, and mixed content issues. Although it is not a comprehensive penetration test, our free website scanner is an excellent baseline test for your website’s security.
What Is the Minimum & Maximum Score of the Free Website URL Checker?
Our free website URL checker grades sites from A+ (95–100, exceptional) down to F (0–29, critical exposure). Scores are based on 120+ weighted tests; SSL issues and missing critical headers carry the heaviest penalty. Most production sites should target an A grade or above.
How Often Should You Perform a Website Security Scan?
Run a website security scan at minimum once a month, and after every code deployment, plugin update, or new third-party integration. E-commerce and high-traffic sites should scan weekly, the threat landscapes change fast, and a configuration that passed last month may be vulnerable today.
How to Resolve Problems Identified by the Website Security Checker Tool?
Once you have completed a website security scan, it is essential to
examine the identified problems carefully. Some of the most common
solutions include:
1. Renewing or configuring SSL certificates correctly
2. Applying suggested HTTP security headers
3. Securing cookies with the correct attributes
4. Upgrading outdated software or server configurations
Addressing problems identified by a website security scan as soon as possible
is an effective way to minimize risks associated with cyber threats.
Does This Tool Detect Malware on My Website?
This is a web scanner that is mainly concerned with detection of technical vulnerabilities and configuration risks. Although it may point out vulnerabilities that may enable malware infection, it is not a dedicated malware removal program. If you suspect active malware on your site, you'll need a dedicated malware scanning tool or a manual investigation.
Does This Website Scanner Tool Do a Comprehensive Website Security Audit?
No. Our free website security scanner gives a detailed automated test of the risks of the configuration, cookies, headers, and the risks of the version of the SSL. However, for a detailed security audit, you can use our premium feature by simply signing up. It's not the same as a full security audit, which would involve testing your application logic, reviewing your code, and authenticated scanning. Think of this as a strong starting point, not a replacement for a full audit.
Which is the best free website scanner?
Honestly, the best free website scanner is one that gives you real, actionable results without making you sign up or pay. DarkScout's free scanner runs 120+ checks, scores your site out of 100, and tells you specifically what's wrong and how to fix it, no account needed. It won't replace a full security audit, but for a free tool, it covers more ground than most.
DarkScout vs Other Free Website Security Scanners
There are several respected free website scanners out there, SSL Labs, SecurityHeaders and Mozilla Observatory among them. Each is excellent at one thing. DarkScout's free scanner covers all of them in a single scan, with results explained in plain English rather than raw technical output.
| What It Checks | DarkScout | SSL Labs | SecurityHeaders | Mozilla Observatory |
|---|---|---|---|---|
| SSL / TLS certificates | Full | Deep | No | Partial |
| HTTP security headers | Full | No | Full | Full |
| Cookie security flags | Full | No | No | Partial |
| DNS & email spoofing | Full | No | No | No |
| Mixed content detection | Yes | No | No | Partial |
| Overall security grade | A+ to F | A+ to F | A+ to F | A+ to F |
| Plain English explanations | Yes | Technical | Technical | Technical |
| No signup required | Yes | Yes | Yes | Yes |
| Business monitoring upgrade | Yes | No | No | No |
| Attack surface visibility | Upgrade | No | No | No |
Get all of these checks in one free scan, no account needed.
Scan Your Website NowScanning One Website? Businesses Need Continuous Monitoring.
This free scan gives you a snapshot of your website's security right now. But your attack surface changes every day, new subdomains, updated configurations, third-party scripts, and newly discovered vulnerabilities. DarkScout's Business plan monitors your entire domain continuously, alerting your team the moment something changes or a new risk appears.
Continuous scanning, not one-time snapshots
Automated daily scans that track your full attack surface.
Full attack surface visibility
Subdomains, open ports, DNS exposure, all in one dashboard.
Real-time alerts
Know the moment a new vulnerability appears.
More Free Security Tools from DarkScout
Common questions about the Website Scanner.
Quick answers about how DarkScout scans your website, what the grades mean, and how to improve your security score.
