Website uptime monitoring, downtime alerts and an 11-check WooCommerce Health diagnostic with store health alerts.
Alternatives to Qndrs Availability and Heartbeat Monitor
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
A lightweight WordPress uptime and SSL monitoring plugin with email alerts, ECharts performance charts (2D/3D), and dashboard widget.
Free SSL, domain expiry and cron monitors in WordPress. Connect a free account for external uptime checks every 5 minutes and email alerts.
Monitor your website for changes and concerns with SiteWatcher, and replace the WordPress update e-mails with SiteWatcher notifications.
Monitor multiple websites for uptime, performance, and SSL certificate expiration. Built-in remote cron for reliable checks — no third-party services …
Detect PHP error spikes, recurring patterns, request impact and source-version changes with grouped local diagnostics.
24/7 uptime monitoring for websites, servers & APIs. Instant alerts, SSL checks, and performance insights. Free forever plan available
Free uptime monitor with downtime alerts. Your site is checked from outside every 60 seconds, and you get one email when it is down.
Monitors the uptime of your websites and sends email notifications when downtime is detected.
Know the moment your WordPress site goes down. Free uptime monitoring that checks every 5 minutes and emails you when it's down and when it's back.