Free & Open Access

Free Security & Privacy Tools

Professional-grade scanning tools — no account required. Analyze SSL certificates, DNS records, website speed, cookies, and more in seconds. Trusted by security professionals worldwide.

Explore Tools View Security Scanner

Free Tools

150+

Security Checks

Scan Layers

Compliance Frameworks

No Account Required

Free tools. Instant results.

Run professional scans on any website in seconds. Each tool provides detailed findings, grades, and actionable recommendations — completely free.

Transport & Infrastructure

SSL, DNS, speed, and connectivity checks.

16 modulesFREE

SSL Checker

Certificate chain, forward secrecy, OCSP stapling, CT logs, mixed content, and cipher analysis.

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18 modulesFREE

DNS Lookup

SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, reverse DNS, SMTP STARTTLS, and more.

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16 modulesFREE

Speed Test

Waterfall timing, resource hints, image optimization, HTML weight, and third-party detection.

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24 modulesFREE

What's My IP

IP intelligence with geolocation, WebRTC leak test, timezone analysis, VPN & proxy detection, 12-database blacklist scanning, abuse scoring, browser privacy audit, and privacy grading.

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Security & Headers

HTTP headers, cookies, and configuration security.

8 headersFREE

Security Headers

CSP, HSTS, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP, CORP, X-Content-Type-Options.

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12 modulesFREE

Cookie Scanner

Full cookie inventory, pre-consent detection, GDPR compliance, and tracker mapping.

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Website Analysis

Tech stack, meta tags, links, and redirects.

FREE

Tech & Tracker Detector

CMS, analytics (GA, Hotjar), trackers, CDN, and framework detection.

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FREE

Page Meta & SEO

Open Graph, Twitter cards, canonical, robots meta, sitemap discovery.

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FREE

Link & Redirect Health

Redirect chain and broken links on a single page.

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Domain Intelligence

WHOIS, subdomains, blacklists, and trust scores.

FREE

Whois & Age

Domain WHOIS, registrar, creation, expiration, and domain age.

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FREE

Subdomain Discovery

Subdomains via crt.sh Certificate Transparency.

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FREE

Blacklist Check

Domain/IP on Spamhaus, SpamCop, Barracuda, SORBS DNSBLs.

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FREE

Domain Trust Score

Composite from age, WHOIS privacy, blacklist, HTTPS.

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Deep Compliance & Security

Pro-grade compliance scanners

Full regulatory audits with remediation roadmaps, penalty estimates, and court-ready reports. Free preview with every scan.

39 suitesPRO

Security Scanner

150+ checks across 37 parallel suites — Pentest-Tools-class recon plus GDPR, DNS depth, and brand protection.

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23 articlesPRO

GDPR Scanner

23-article GDPR compliance audit with remediation guidance and penalty estimates.

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PRO

Cookie Banner Scanner

Consent mechanism audit with dark pattern detection per EDPB guidelines.

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PRO

CCPA Scanner

"Do Not Sell" link, GPC signal, and privacy policy audit for California compliance.

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PRO

LGPD Scanner

Brazilian data protection law compliance audit with Portuguese notice validation.

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PRO

CNIL Scanner

French CNIL regulatory compliance analysis and cookie consent validation.

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Cybersecurity Platform

Beyond free tools — full security coverage

Cyrolo provides comprehensive cybersecurity services. 150+ automated security scanners, expert penetration testing, and multi-framework compliance audits — all from one platform.