Keep Checkout, Sign-In,
and Receipts Working
Revenue runs over two things customers never think about: a certificate on every page and API, and email that reaches the inbox. Watch both, and hear about problems before your customers do.
Small Failures,
Expensive Minutes
An expired certificate on an API endpoint breaks the mobile app. A blacklisted sending IP means password resets and order receipts never arrive. Neither shows up in uptime monitoring, because the server is up.
Both are cheap to prevent and expensive to discover from a support queue.
What Changes
When You Turn It On
Certificates on your storefront, APIs, and payment pages checked on every address behind them.
The IPs and domains that send receipts, resets, and notifications watched against 150+ blocklists and data sources.
PagerDuty, Slack, or a webhook for the engineer on call, with what broke and where.
Connect Claude, ChatGPT, or Copilot over MCP and ask which certificates expire this month.
Set Up Once,
Then Let It Watch
Storefront, checkout, API, sign-in, and the mail that goes with them.
Route certificate and listing alerts into the same place as the rest of your incidents.
Weeks of warning on renewals, minutes on listings.
Further Reading
Case StudyAutomated, and Still Expired
A SaaS platform automated every certificate renewal with Let's Encrypt, then had two certificates expire in fifty days. Automation needs a backstop.
Case StudyMarketing to a Blacklist
A SaaS marketing team spent half a year and a $350,000 budget emailing people who never got the message. The campaigns were fine; the domain was blacklisted.
White PaperWhen Certificates Expire
Anatomy of a preventable outage: seven years of public expiry incidents, the coming 47-day certificate lifetime, and why renewals silently fail.
Frequently Asked Questions
Common questions from teams like yours.
We already have uptime monitoring. Isn't that enough?
Uptime checks see that the server answers. They don't see a certificate about to expire, a missing intermediate on one node, or mail going to spam.
Can it check our API and not just the website?
Yes. Any hostname and port that speaks TLS can be monitored, including APIs, mail servers, and internal services.
Is there an API for our own tooling?
Yes. Manage monitors and hosts through the REST API, and receive alerts by webhook.
More Solutions
Protect the Paths That Earn Money
Start free with your storefront and your sending domain.