# Website security and monitoring services

> Explore Sentryx Monitor services for external attack surface monitoring, website security checks, uptime monitoring, and SSL certificate monitoring.

Canonical: https://sentryxmonitor.com/services/
Last updated: 2026-08-08

Choose the Sentryx Monitor capability that matches the public risk or customer-facing system you need to understand.

## [External attack surface monitoring](https://sentryxmonitor.com/services/external-attack-surface-monitoring/)

Discover public hosts, subdomains, DNS records, certificates, and exposed services from outside your network.

## [Website security check](https://sentryxmonitor.com/services/website-security-check/)

Review public DNS, HTTPS, TLS, email-security, and baseline security-header signals around a domain.

## [Website uptime monitoring](https://sentryxmonitor.com/services/uptime-monitoring/)

Monitor important websites and APIs with continuous HTTP, TCP, DNS, and reachability checks.

## [SSL certificate monitoring](https://sentryxmonitor.com/services/ssl-certificate-monitoring/)

Track certificate expiry and HTTPS trust before an avoidable outage reaches customers.

## Related
- [Home](https://sentryxmonitor.com/)