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Best domain security audit APIs

Domain Security Audit API

Security & Cybersecurity

Checks a domain’s public DNS, HTTPS, TLS, certificate, CAA, DNSSEC, and security-header setup.

Free 7-Day Trial

100% uptime 1,811ms avg MCP ready

Website SEO Audit API

Tools & Utilities

Audit one public page for static SEO signals, 65+ technology fingerprints, and eight security headers with bounded redirects, response size, and private-network blocking.

Free 7-Day Trial

100% uptime 80ms avg MCP ready

Security Txt API

Security & Cybersecurity

Validates security.txt policy files (RFC 9116) for syntax and structure. This is syntax and structure validation only; it does not verify sellers (no sellers.json cross-check) or exchange domain

Free 7-Day Trial

100% uptime 173ms avg MCP ready

Security Headers Checker API

Security & Cybersecurity

Check any website's HTTP security headers (Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy

Free 7-Day Trial

100% uptime 219ms avg MCP ready

Website Security Certificate Checker API

Security & Cybersecurity

Inspect the security certificate of any host: issuer, subject, validity window, days remaining, expiry flags, alternative names, serial number, fingerprint, negotiated protocol and the full chain. Built for expiry monitoring and renewal alerts.

Free 7-Day Trial

100% uptime 179ms avg MCP ready

Web Scan Safe API

Security & Cybersecurity

"Retrieves detailed security analysis results for specific websites, improving cybersecurity measures."

Free 7-Day Trial

100% uptime 213ms avg MCP ready

SEO Score API

Data & Analytics

SEO audit API. Send a URL, get a 0 to 100 score, a grade, category scores, AI readability scores and a prioritized fix list as JSON.

Free 7-Day Trial

100% uptime 4,742ms avg MCP ready

Password Risk Analyzer API

Security & Cybersecurity

Analyzes password security, detects compromises, measures risk, and offers recommendations and suggested secure passwords to improve protection.

Free 7-Day Trial

100% uptime 359ms avg MCP ready

Web Authority API

Data & Analytics

Analyze web domains by providing key metrics such as authority, external links, spam score, and SEO factors to assess their digital relevance.

Free 7-Day Trial

100% uptime 681ms avg MCP ready

URL Risk Analyzer API

Security & Cybersecurity

The URL Risk Analyzer API evaluates the security of websites, providing reputation scores and trust levels to assess potential risks, ensuring safe browsing experiences for users.

Free 7-Day Trial

100% uptime 319ms avg MCP ready

Password Security Checker API

Security & Cybersecurity

The Password Security Checker API strengthens security by evaluating password robustness, analyzing complexity, and identifying potential vulnerabilities to safeguard against breaches.

Free 7-Day Trial

100% uptime 108ms avg MCP ready

Malware Check API

Security & Cybersecurity

Malware Check API detects and analyzes potential threats in files and URLs, identifying malicious content and vulnerabilities to protect systems and data.

Free 7-Day Trial

100% uptime 307ms avg MCP ready

IOC Scan API

Security & Cybersecurity

Real-time threat intelligence for file hashes, IPv4 addresses, domains and URLs, — 70+ vendor verdicts in a single call.

Free 7-Day Trial

100% uptime 239ms avg MCP ready

URL Risk Data API

Security & Cybersecurity

The URL Risk Data API assesses website security by generating reputation scores and trust levels to identify potential threats, helping ensure a safe browsing experience for users.

Free 7-Day Trial

100% uptime 287ms avg MCP ready

URL Risk Information API

Security & Cybersecurity

The URL Risk Information API assesses the security of websites by assigning reputation scores and trust ratings to identify potential threats, helping users maintain a safe browsing environment.

Free 7-Day Trial

100% uptime 259ms avg MCP ready

Robots and Sitemap Checker API

Tools & Utilities

Given a single domain, checks that site's robots.txt (crawl allow/disallow rules per user-agent, crawl-delay, declared sitemap URLs) and sitemap.xml (existence, URL count, and child-sitemap count if

Free 7-Day Trial

100% uptime 565ms avg MCP ready

URL Risk API

Security & Cybersecurity

The URL Risk API analyzes website security, assigning reputation scores and trust levels to identify potential risks, helping ensure a safer browsing experience for users.

Free 7-Day Trial

100% uptime 249ms avg MCP ready

DNS Checker API

Security & Cybersecurity

Unleash the power of precision with the DNS Checker API. Seamlessly uncover the digital footprint of any domain by retrieving a comprehensive list of DNS records. From A to MX, empower your applications to navigate the virtual landscape effortlessly, ensuring seamless connectivity and heightened network awareness.

Free 7-Day Trial

100% uptime 396ms avg MCP ready

Domain Traffic and Backlinks API

Data & Analytics

Analyzes any domain and returns key visibility metrics: keywords, estimated traffic, costs, global ranking, and links for quick assessments.

Free 7-Day Trial

100% uptime 271ms avg MCP ready

Malware Risk Assessment URL Security Threat Detection Security Compliance Syntax Validation Lookup Web Spam Score Domain Analysis Host Verification External Links Password Security Headers Website Security SEO Metrics Robots.txt Checker DNS SEO Audit More...

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Best domain security audit APIs

Domain Security Audit API

Website SEO Audit API

Security Txt API

Security Headers Checker API

Website Security Certificate Checker API

Web Scan Safe API

SEO Score API

Password Risk Analyzer API

Web Authority API

URL Risk Analyzer API

Password Security Checker API

Malware Check API

IOC Scan API

URL Risk Data API

URL Risk Information API

Robots and Sitemap Checker API

URL Risk API

DNS Checker API

Domain Traffic and Backlinks API

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