What does a website security audit check?

A security audit checks SSL certificate health, DNS security (SPF, DKIM, DMARC, DNSSEC), security headers (HSTS, CSP, X-Frame-Options), blacklist status, exposed API keys in JavaScript, and leaked API documentation (Swagger, GraphQL endpoints).

Is the security audit free?

Yes, DomainOptic's security audit is free with no signup required. Get instant results with A+ to F grades and plain-English explanations.

What is the Secret Scanner?

The Secret Scanner checks your site's public code for exposed API keys like AWS credentials, Stripe keys, Firebase configs, and OpenAI tokens that attackers actively scan for.

What is the Ghost API Hunter?

Ghost API Hunter probes for accidentally exposed API documentation like /swagger, /graphql, /.env files, and debug endpoints that could reveal your backend structure to attackers.

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Ship Fast, Stay Secure - Security Audit for Indie Hackers

Get a complete security health check for your website in one click. Scan SSL certificates, DNS configuration (SPF, DKIM, DMARC), security headers, exposed API keys, and leaked endpoints. Plain-English explanations with A+ to F grades. Built for indie hackers and makers. No signup required for your first scan.

Complete Security Audit in One Click

Enter any domain to get a comprehensive security report. We check SSL certificate health, DNS security (SPF, DKIM, DMARC, DNSSEC), security headers, blacklist status, exposed secrets in JavaScript, and leaked API documentation (Swagger, GraphQL).

Every issue comes with plain-English explanations and actionable fix recommendations. Perfect for indie developers who ship fast but want to stay secure.

Why Use DomainOptic?

Security Audit

Complete security scan: SSL, DNS, headers, blacklists, exposed secrets, and leaked APIs. Get A+ to F grades with plain-English explanations.

Secret Scanner

Unique feature: we scan your site's public code for exposed API keys (AWS, Stripe, Firebase, etc.). Find what hackers find.

Ghost API Hunter

Discover leaked Swagger docs, GraphQL endpoints, and unprotected API documentation that could expose your backend.

SSL & DNS Health

Check certificate validity, expiration, protocol version, plus SPF, DKIM, DMARC, and DNSSEC configuration.

AI Domain Generator

Plus: generate creative, brandable domain names with AI and check availability across popular TLDs.

Free for Indie Hackers

No signup required, no credit card needed. Built for solo founders and small teams who ship fast.

How to Run a Security Audit

Enter your domain - Type your website URL in the search box (e.g., mysite.com)
Run the scan - Click Run Audit to scan SSL, DNS, headers, and exposed secrets
Review your report - See your security grade (A+ to F) with explanations for each issue
Fix what matters - Follow actionable recommendations to improve your security posture

Frequently Asked Questions

Is the security audit really free?

Yes! Free to use with no signup required. No credit card needed to scan your first domain.

What does the security audit check?

We scan SSL certificate health, DNS configuration (SPF, DKIM, DMARC, DNSSEC), security headers, blacklist status, exposed API keys in JavaScript, and leaked API documentation.

Who is DomainOptic for?

Built for indie hackers, makers, and solo founders who ship fast but want to stay secure. No security expertise required - we explain everything in plain English.

What makes DomainOptic different?

Plain-English explanations, unique Secret Scanner and Ghost API Hunter features, A+ to F grading system, and indie-friendly pricing. No enterprise complexity.

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Is Your Site Secure?

Your complete security health check, one click away. Free, no signup required.

Run Free Security Audit →

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DomainOptic - Ship fast, stay secure. Free security audit for indie hackers.

Security Audit · SSL Checker · DNS Health · AI Generator · Blog