Get a Slack alert before your website's SSL certificate expires

Every week, the system checks your domains' SSL certificates and pings Slack if one is about to expire.

How the work actually flows

It branches. Exactly one path is taken; runs once per one per domain checked.

Pattern: Multiple Instances with a priori Design-Time Knowledge (13) · Exclusive Choice (4)

flowchart TD trig(["weekly certificate check"]):::trigtime s0[["pull list of domains"]]:::mi s1["look up certificate expiration"]:::svc s2["compare to safety window"]:::task trig --> s0 s0 --> s1 s1 --> s2 gx{"× expiring soon"}:::gate s2 --> gx p00["post slack alert"]:::task gx -->|"expiring soon"| p00 p10["no action taken"]:::task gx -->|"not expiring"| p10 p00 --> out p10 --> out out[/"slack alert for expiring certificates"/]:::out pay{{"avoid unexpected certificate downtime"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itA stepAn outside serviceRuns once per itemOne path onlyResultPayoff
Build size
Standard

A mid-size build with several tools working together.

Business functions
Messaging & Notifications
Connects
Slack

The problem it solves

You only find out a certificate has expired when customers can't reach your site or get a browser security warning. Checking every domain by hand is tedious and easy to skip during a busy week. A lapsed certificate can mean lost trust and lost sales.

Who it fits

Any business that manages multiple websites or domains and can't afford unexpected downtime.

How it works

  1. On a set schedule, the system pulls your list of domains to check
  2. It looks up each domain's certificate expiration date
  3. It compares that date against a safety window, like 30 days out
  4. If a certificate is expiring soon, it posts an alert to your Slack channel with the domain and expiry date
What you get

Certificates that never quietly expire on you

Every week, your domains' SSL certificates get checked and you're alerted in Slack before any of them expire.

What you get

A Slack message naming any domain whose certificate is about to expire.

What you need

A Slack workspace and access to a certificate-checking service for your domains.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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