Uptime monitoring for a Chrome extension SaaS
A Chrome extension can look “installed” while the SaaS behind it is broken. The extension UI may load from the browser, but login, sync, billing, or the API can still fail.
Monitor the backend paths users depend on, not the browser extension package itself.
Quick answer
For a Chrome extension SaaS, StillOnline should monitor HTTP health URLs for the API, auth callback, sync endpoint, and billing-adjacent backend; Free gives one owner alert channel and Pro/Ultimate give email, Telegram, and Slack on pricing. Chrome extensions are distributed through the Chrome Web Store, whose developer docs separate extension publishing from your backend availability. Treat the extension as a client and StillOnline as the external check on the services it calls.
What to monitor
Start with the endpoint that represents real customer work. A simple /health is better than pinging the marketing site.
| Component | Good check | Why |
|---|---|---|
| API | /health or read-only endpoint | Core extension calls |
| Auth | callback or session check | Login failures block users |
| Sync | lightweight sync endpoint | Data freshness |
| Billing webhook | webhook receiver health | Paid users and upgrades |
CORS and permissions
Do not make the monitor depend on browser-only headers. StillOnline checks the service from outside, like a user’s network would, so the endpoint should return a clear HTTP status without requiring extension context.
Chrome extension permissions are documented in Chrome extension permissions. Those permissions matter for the browser client, not for your backend health endpoint.
Status page structure
Use components such as API, Login, Sync, and Billing. If the extension UI still opens but sync is down, customers need a more precise label than “site down.”
Link the status page in support docs, onboarding emails, and incident replies. Do not hide it in the footer as a generic trust badge.
Related guides
- API-only SaaS uptime checks
- Health check endpoint design
- Public status page guide
- Auth login flow synthetic check
FAQ
Can StillOnline monitor the Chrome extension package itself?
No. StillOnline monitors HTTP endpoints you control. For a Chrome extension SaaS, that means the backend API, auth, sync, and related services.
Should a Chrome extension SaaS have a public status page?
Yes if customers rely on the extension for work. A status page explains whether the API, login, or sync layer is affected when the extension UI still opens.
What StillOnline plan fits a small extension SaaS?
Free can cover one critical backend URL and one owner channel. Pro or Ultimate is better when you need several components and multiple alert channels.
Does Chrome Web Store availability prove my SaaS is up?
No. The store can serve the extension while your backend is down. Monitor your own HTTP services separately.