Connect your WordPress site to Domain Monitor to track uptime, SSL certificate expiry, domain expiry and DNS changes from one dashboard.
Alternatives to Certack: Proactive SSL, DNS, and domain monitoring
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Free SSL, domain expiry and cron monitors in WordPress. Connect a free account for external uptime checks every 5 minutes and email alerts.
Titanium Site Watch – Website Uptime Monitoring & Downtime Alerts with Health Checks for WooCommercev1.0.7
Website uptime monitoring, downtime alerts and an 11-check WooCommerce Health diagnostic with store health alerts.
CVE-2026-109618 / CVE-2026-109619 (php2shell) PHP alerts + host ticket. Free Domain Anchor: domain & SSL expiry, DNS, email auth.
Detect PHP error spikes, recurring patterns, request impact and source-version changes with grouped local diagnostics.
DomainWarn Monitoringv1.5.1
Monitors availability, certificate, DNS and email of your site – and reports what is invisible from outside: outdated plugins, a stalled WP-Cron.
Proactive protection for the domain your WordPress site runs on. Expiry, hijacking, and outages, in the dashboard.
Vigilo Monitorv1.0.0
Lightweight site-health monitoring for freelancers and agencies: disk usage, PHP fatal errors, and SSL expiry, with email alerts.
External uptime monitoring, SSL certificate expiry alerts, and domain expiry monitoring for WordPress. 1-click setup. 100% free.
WPMissionControlv1.2.5
Monitor uptime, SSL, domain, integrity, malware, visual changes, activity, and errors. Lightweight client. Requires a WPMissionControl account.