# Certack

> Certack is an SSL certificate, DNS, and domain expiry monitoring platform. It watches production websites continuously, detects certificate expirations, DNS changes, and domain renewals before they cause outages, and alerts teams over email, Slack, Discord, Teams, Telegram, PagerDuty, and webhooks. Available in 7 languages with a free plan.

## Product
- [Home](https://staging.certack.com/): Product overview — what Certack monitors, how alerting works, and a free instant SSL checker.
- [Pricing](https://staging.certack.com/pricing): Free, Starter ($7.9/mo), and Pro ($15.9/mo) plans with site limits, alert channels, and API quotas. 7-day money-back guarantee.
- [Live Demo](https://staging.certack.com/demo): Interactive demo dashboard with real monitoring data — no signup required.
- [Free SSL Checker](https://staging.certack.com/): Check any domain's SSL certificate, issuer, chain, and expiry instantly, without an account.

## Documentation
- [REST API Documentation](https://staging.certack.com/docs/api): Authentication, endpoints, rate limits, and examples for the Certack API.
- [OpenAPI Specification](https://staging.certack.com/openapi.yaml): Machine-readable OpenAPI 3 definition of the Certack REST API.
- [llms-full.txt](https://staging.certack.com/llms-full.txt): Extended machine-readable summary including API endpoints and plan details.

## Trust & Security
- [Security](https://staging.certack.com/security): How Certack protects data — encryption, access controls, and responsible disclosure.
- [Blog](https://staging.certack.com/blog): Technical articles on SSL, DNS, and domain security.

## Legal
- [Terms of Service](https://staging.certack.com/terms): Service terms, billing, cancellation, and liability.
- [Privacy Policy](https://staging.certack.com/privacy): Data handling, GDPR/CCPA rights, subprocessors, and retention.
- [Refund Policy](https://staging.certack.com/refund): 7-day money-back guarantee and cancellation terms.

## Contact
- Support: support@staging.certack.com
- Billing: billing@staging.certack.com
- Security disclosures: security@staging.certack.com
- Website: https://staging.certack.com