Security Automation For Developers

SSL monitoring, OWASP Top 10 scanning, CVE detection, and automated compliance reporting.

Competitive pricing. Transparent costs. No vendor lock-in.

100% cost-transparent
No vendor lock-in
Open source first

See who we built this for

Built for DevOps Teams

Fence was created by developers who have experienced the pain of security vulnerabilities taking down production systems. We built the monitoring tool we wished we had - simple, reliable, and affordable.

Learn about the problem

The Real Cost of Security Vulnerabilities

From expired SSL certificates to OWASP Top 10 vulnerabilities—security threats come from everywhere, and they're costing businesses millions.

Expired SSL Certificates

Browsers show scary warnings that drive away customers. Downtime costs thousands per hour in lost sales and damaged reputation.

OWASP Top 10 Exploits

SQL injection, XSS, and CSRF attacks can expose customer data, steal credentials, and destroy your database—all preventable with proper scanning.

Unsecured .onion Sites

Privacy-focused services running on Tor need the same security rigor as clearnet sites. OWASP Top 10 vulnerabilities don't care about anonymity.

SOC2/ISO 27001 Failures

Failed compliance audits mean no enterprise deals, lost contracts, and regulatory fines. Automated evidence collection keeps you audit-ready 24/7.

Unpatched CVEs

Heartbleed, Log4Shell, and thousands of known CVEs are actively exploited. If you're not scanning, attackers are already in.

Missing Security Headers

No HSTS, CSP, or X-Frame-Options? Your site is vulnerable to clickjacking, man-in-the-middle attacks, and content injection.

See how we solve it

Automated Vulnerability Scanning

Comprehensive security monitoring with intelligent alerts and powerful integrations.

OWASP Top 10 Scanning

Automated detection of SQL injection, XSS, CSRF, and all OWASP Top 10 vulnerabilities with plain English explanations and fix instructions.

CVE Detection (Nuclei)

Scan for thousands of known CVEs including Heartbleed, Log4Shell, POODLE, and other critical vulnerabilities using the Nuclei scanner.

Darknet Vulnerability Scanning

Extend OWASP Top 10, CVE, and SSL scanning to .onion sites via Tor proxy. Secure SecureDrop instances, privacy services, and Tor hidden services. Enterprise-only.

SOC2/ISO 27001 Compliance

Automated evidence collection for compliance audits. Built-in vulnerability scanner satisfies security control requirements for SOC2 and ISO 27001.

Multi-Channel Notifications

Get alerts via Email, Slack, Discord, Telegram, Teams, WhatsApp, Signal, or custom webhooks. Configure thresholds and escalation rules.

REST API & CI/CD Integration

Full REST API access for automation, custom integrations, and CI/CD pipelines. Trigger scans from GitHub Actions, GitLab CI, or Jenkins.

Explore integrations

Integrates with Your Favorite Tools

Get alerts where your team already works. No new tools to learn.

Email

Slack

Discord

Telegram

WhatsApp

Signal

MS Teams

Webhooks

View pricing plans

Simple, Transparent Pricing

Start free, upgrade as you grow. No surprises, no hidden fees. Cancel anytime.

Hobby

$0 /month

Perfect for checking personal websites and IoT devices

Start Free
3 domains
Web domains only
SSL/TLS + Security headers
Weekly scans
Community support

Startup

MOST POPULAR
$49 /month

For entrepreneurs and agencies building on the web

Start Free Trial
Everything in Hobby, plus:
25 domains & .onion
OWASP Top 10 & CVE
Daily scans & API
Subdomain enumeration
AI chatbot support

Enterprise

$499 /month

For companies requiring compliance frameworks

Contact Sales
Everything in Startup, plus:
100 domains & IoT/API
Internal scanner
Hourly & on-demand
Full OSINT
Priority chatbot & Slack

Custom

Let's Talk

Enterprise-scale deployment for Fortune 500

Contact Sales
Everything in Enterprise, plus:
Unlimited domains & users
Source code access
White-label reports
Custom integrations
Dedicated engineer

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Start Monitoring Your SSL Certificates Today

Join thousands of developers and IT teams protecting their users with automated SSL monitoring.

No credit card required • Free plan forever • Cancel anytime