# Services from tinstop.com on Zero

> tinstop.com serves 14 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/tinstop.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/tinstop.com/health.json

## Services

- [Tinstop Email Security Check](https://www.zero.xyz/c/tinstop-email-security-check-2051347f/llms.txt): $0.05/call via x402. Audits a domain's email authentication setup by checking SPF, DKIM, and DMARC records and returning a scored security report with identified vulnerabilities.
- [Tinstop DMARC Check](https://www.zero.xyz/c/tinstop-dmarc-check-244f78ff/llms.txt): $0.02/call via x402. Checks a domain's DMARC record for validity, policy level, alignment options, and reporting destinations, flagging any configuration issues.
- [Tinstop Website Intelligence API – AI Audit Report](https://www.zero.xyz/c/tinstop-website-intelligence-api-ai-audit-report-88244776/llms.txt): $0.5/call via x402. Runs a comprehensive security and performance audit on a given domain, covering DNS, SSL/TLS, HTTP headers, SPF/DKIM/DMARC, and Google PageSpeed, returning a structured AI-ready report.
- [Tinstop AI SEO Readiness Audit](https://www.zero.xyz/c/tinstop-ai-seo-readiness-audit-1510f867/llms.txt): $0.75/call via x402. Analyzes a domain's AI and SEO readiness by auditing DNS, SSL/TLS, HTTP security headers, email authentication (SPF/DKIM/DMARC), and optionally Google PageSpeed metrics
- [Tinstop AI Change Advisor](https://www.zero.xyz/c/tinstop-ai-change-advisor-7f76c319/llms.txt): $1/call via x402. Compares two domain security/performance scans (or two domains) and provides AI-generated actionable recommendations on what changed and what to fix
- [Tinstop HTTP Security Headers Check](https://www.zero.xyz/c/tinstop-http-security-headers-check-3e2f40ed/llms.txt): $0.02/call via x402. Audits a domain's HTTP security headers, grades them A–F, and returns missing headers with remediation recommendations.
- [Tinstop Domain Security Audit API](https://www.zero.xyz/c/tinstop-domain-security-audit-api-e5b6fbff/llms.txt): $0.05/call via x402. Audits a domain's security posture including DNS, SSL/TLS, HTTP security headers, SPF/DKIM/DMARC email authentication, and Google PageSpeed via a pay-per-call x402 API
- [Tinstop Domain Subdomain Enumeration](https://www.zero.xyz/c/tinstop-domain-subdomain-enumeration-1dbf93dc/llms.txt): $0.02/call via x402. Enumerates and discovers subdomains for a given apex domain, returning a list of discovered hosts up to a configurable limit.
- [Tinstop SSL/TLS Certificate Check](https://www.zero.xyz/c/tinstop-ssl-tls-certificate-check-c4bf939f/llms.txt): $0.02/call via x402. Checks the SSL/TLS certificate validity, expiry, issuer, and hostname coverage for a given domain
- [Tinstop Domain Security Audit API](https://www.zero.xyz/c/tinstop-domain-security-audit-api-ce4bf677/llms.txt): $0.1/call via x402. Performs a comprehensive security and performance audit of a domain, checking DNS, SSL/TLS, HTTP headers, SPF/DKIM/DMARC email authentication, and Google PageSpeed, returning a scored risk report with actionable issue fixes.
- [Tinstop Website Performance Audit](https://www.zero.xyz/c/tinstop-website-performance-audit-64005b0e/llms.txt): $0.1/call via x402. Runs a Google PageSpeed-based performance audit on a domain, returning Core Web Vitals and speed metrics for desktop and/or mobile, with optional optimization recommendations.
- [Tinstop Domain Security Audit API](https://www.zero.xyz/c/tinstop-domain-security-audit-api-f74006d0/llms.txt): $0.15/call via x402. Performs a comprehensive domain security and performance audit covering DNS, SSL/TLS, HTTP headers, SPF/DKIM/DMARC, and Google PageSpeed for any given domain
- [Tinstop Website Change Diff API](https://www.zero.xyz/c/tinstop-website-change-diff-api-f182c1e4/llms.txt): $0.05/call via x402. Fetches a URL and computes a diff against a baseline or last stored snapshot to detect content changes
- [Tinstop Website Screenshot API](https://www.zero.xyz/c/tinstop-website-screenshot-api-295ec449/llms.txt): $0.02/call via x402. Captures a screenshot of any webpage at a given URL, with support for desktop or mobile viewport presets, payable per-call via x402/USDC.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)