Launched this week
Downdar
Uptime, cron & SSL monitoring in one dashboard
16 followers
Uptime, cron & SSL monitoring in one dashboard
16 followers
Downdar watches your websites, APIs, ports, SSL certs, and DNS from 6+ global checkpoints, and pages you the second something breaks. Ping-based heartbeats catch cron jobs and background tasks that fail silently. Alerts hit Slack, Discord, Telegram, Teams, webhook, or email, with automatic recovery notices. Embeddable status pages keep customers in the loop without extra design work. Free for 30 days, plans start at $9/month.
Ping-based heartbeats are a nice touch for catching silent cron failures. One thing I'd love to see is the ability to group related monitors into an incident, so a single Slack alert tells me it's one root cause affecting three services instead of three separate pings I have to mentally connect. Would save real time during outages.
@oliver_burns Really good point, and yeah, that's a gap right now. Alerts are per-monitor today, so three related failures mean three separate notifications. Grouping them into a single incident when the same root cause takes out multiple services would genuinely help during a real outage.
Not there yet, but it's on my radar. In the meantime, since you can point alerts at a custom webhook, you could catch multiple pings on your end and de-dupe/group them yourself, but that's a workaround, not a real fix. Appreciate the flag, this is exactly the kind of feedback I was hoping for.
Hey everyone, Steven here.
I've been building and running my own sites and tools for about 18 years, and downtime has burned me more than once, usually found out from a customer email instead of my own dashboard. I got tired of stitching together separate tools for uptime, SSL expiry, and cron job failures, so I built one for myself. Downdar is that tool, cleaned up and made public.
The part I cared about most was cron and background job monitoring. Most uptime tools only check if your site responds. They don't tell you when a nightly backup or billing job just quietly stops running. Downdar gives you a ping URL, your job calls it once per run, and you get alerted the moment a run is missed or late. No agent, no library, just a curl command.
Everything gets verified from 6+ global checkpoints before an alert fires, so a single region blip doesn't wake you up at 3am for nothing. Alerts go to email, Slack, Discord, Telegram, Teams, or a webhook, and status pages can be embedded right on your own site with a single iframe.
Everything in the dashboard is also available through the API: create and manage monitors, heartbeats, groups, tags, status pages, and alert channels, all programmatically. Billing and account settings are kept out of API scope on purpose, for safety. If you want to spin up monitoring as part of your own deploy pipeline or provisioning scripts, you can do it without touching the UI.
Would love any feedback, especially on the heartbeat monitoring since that's the part I use the most myself. Happy to answer questions about check intervals, alerting, or pricing.
Love that ping-based heartbeat idea for catching silent cron failures, that is a gap most uptime monitors leave wide open and you clearly thought it through. Six global checkpoints at this price point is solid too.
@sinclair_jenkins Thanks, that means a lot. The heartbeat piece is honestly my favorite part too, felt like the biggest blind spot in most monitoring tools.
On checkpoints, 6 is where we started to keep pricing sane, and the infra is built to scale well beyond that. More locations are coming as the product grows, it's really a cost thing at this stage, not a technical limit.