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Monitor SSL certificates, domain expiry, and DNS/DNSSEC across all your sites. Track every DNS record change and get alerted on Slack, email, or webhook before anything lapses — so you never find out from your customers.
Hi Product Hunt! 👋
Managed SSL has made certificate renewals mostly automatic — but “mostly” is the problem. Self-managed certs, forgotten subdomains, and domain registrations still expire silently. And lately there’s a bigger worry: email spoofing. Weak or missing DMARC/SPF settings let attackers send emails pretending to be your domain, and most teams don’t notice until damage is done.
That’s why I built Certly. It watches your SSL certificates, domain expiry, DNS/DNSSEC health, and email authentication posture, and alerts you on Slack, email, or webhook before anything lapses. It also tracks every DNS record change, so silent modifications don’t go unnoticed.
There’s a free plan — you can add your first domain and see results in under a minute.
I’d love your feedback — especially on what other checks you’d want monitored. Thanks for checking it out!
The DNS change history view is such a smart move, makes it dead simple to spot which tweak broke prod last week. Slack alerts on the expiry thresholds feel just right too.
Caught a sneaky DNS record change on one of my side projects that I would have totally missed otherwise. Slack alert arrived a few minutes before the cert was set to renew, saved me an embarrassing email from a client.
finally something that caught a sneaky DNSSEC validation issue on a subdomain i forgot about, the slack alert was clear and pointed me straight to the record
The fact that it watches DNSSEC alongside SSL and DNS records shows real attention to the full certificate trust chain, not just the obvious stuff. Slack and webhook alerts before expiry is exactly the kind of unglamorous infrastructure tool that saves a Friday night.
Love how the dashboard surfaces every record type without making you dig through nested menus. The Slack alerts with the exact affected domain and expiry timestamp are a nice touch.
How does certly handle certificate transparency logs? Like if someone manages to issue a sneaky cert for one of my domains, can it catch that too or only stuff I've already set up?
Does Certly handle wildcard certs the same as standard ones, and what happens if I rotate a cert through your system does the alerting reset automatically or do I need to reconfigure anything?
About Certly on Product Hunt
“Know before your SSL, domain, or DNS breaks”
Certly was submitted on Product Hunt and earned 7 upvotes and 15 comments, placing #46 on the daily leaderboard. Monitor SSL certificates, domain expiry, and DNS/DNSSEC across all your sites. Track every DNS record change and get alerted on Slack, email, or webhook before anything lapses — so you never find out from your customers.
Certly was featured in SaaS (43k followers), Developer Tools (515.4k followers) and Security (2.7k followers) on Product Hunt. Together, these topics include over 129.1k products, making this a competitive space to launch in.
Who hunted Certly?
Certly was hunted by Koizumi Fumiya. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Certly stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Koizumi Fumiya