DownDomain checks your domains every hour: that the site loads, that it really is your site and not a “Project not found” page, and that the Supabase behind it is alive. If something breaks, you get an email, a phone notification or a Telegram message.
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Most monitors only ask “does the server answer 200?”. Sites built with Lovable, Bolt or any Supabase-backed stack fail in ways that still answer 200.
One day your custom domain stops pointing to your app and visitors get the platform's “Project not found” page. The server still answers, so a basic ping never notices.
When Lovable Cloud runs out of credits, or a Supabase project is paused, the page still loads but logins, data and forms are dead. DownDomain finds the Supabase your site uses and checks it directly.
If a deploy ships without the Supabase URL or key, the HTML looks perfect and the app breaks in the browser. DownDomain remembers that your site used Supabase and warns you when it disappears from the code.
One click. No passwords to remember.
One or many at once. The Supabase each site uses is detected automatically from its code.
When a site goes down, every 24 hours while it stays down, and when it comes back.
To your account email by default, or to any addresses you choose.
Instant notifications on Android and iPhone through the free ntfy app.
A message from your own bot, with a link to the dashboard.
No. DownDomain monitors any website. The extra checks — the “Project not found” page and the Supabase backend — are designed for Lovable, Bolt and other sites built on Supabase, but any domain can be added.
It reads the JavaScript your site already sends to every visitor and looks for supabase.co addresses and public keys. You do not need to give DownDomain any password, service key or database access.
Every hour, around the clock. You can also check one site or all of them on demand from the dashboard.
No. You get one alert when a site goes down, a reminder every 24 hours while it is still down, and one when it recovers. Failures are confirmed twice before alerting.
DownDomain is free, for up to 50 domains per account.
That is exactly the failure a normal monitor misses: the page is served from the host, while the database, login and storage live in Supabase. If that project is paused, deleted or out of credits, your app is broken even though the page loads.
Add your domains in one minute and let DownDomain keep watch.
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