The UptimeRobot alternative built for WordPress
UptimeRobot and other external monitors do one thing well: they ping a URL from the outside and tell you if it stops responding. Useful — but for a WordPress site that's only half the story, and it's the half that arrives after your visitors have already hit a white screen.
Zubbin is different: it runs inside WordPress.A lightweight plugin reports your site's real health from where the problem actually happens.
Where external-only monitoring falls short on WordPress
A plugin update triggers a PHP fatal
Your homepage may still return 200 from cache while key pages are broken. An external ping sees “up.” Zubbin captures the fatal’s file, line, and message.
WP-Cron silently stops
Backups, order emails, and scheduled posts quietly fail. Nothing about the homepage changes, so an external monitor never notices. Zubbin flags the stalled cron.
The database or REST API degrades
An external check of the front page can still pass. Zubbin runs a real SELECT 1 and a /wp-json/ loopback from inside.
Side by side
| Capability | External-only monitor | Zubbin |
|---|---|---|
| Homepage up/down check | ||
| PHP fatal / white-screen capture (file + line) | ||
| WP-Cron health | ||
| Database / REST reachability from inside | ||
| Plugin/theme inventory + available updates | ||
| SSL expiry | ||
| Fleet view for many sites | Varies | |
| Free plan |
Use Zubbin alongside an external check, not instead of one.External pings still catch total server or network death — Zubbin adds the WordPress-layer visibility they structurally can't have.
Related reading: Why external monitors miss WordPress errors · What makes a good WordPress uptime plugin
Catch what UptimeRobot can’t
Install the free Z UpTime plugin, pair it with a free Zubbin account, and your first health snapshot arrives in minutes.
Free forever plan · No credit card required