Embeddable countdown badge

A small image that counts down the days until 100-day TLS certificate validity begins on March 15, 2027. It rolls over to the next policy milestone on its own, so an embedded badge never shows zero. The count is generated on our server and refreshed hourly, so you can drop it anywhere an image works — no scripts, no tracking, no signup.

Put it on your status page, your internal wiki, your runbooks, or your docs site so the team sees the deadline moving without having to think about it. It links back to 47daycerts.com, where anyone can check a domain for free.

Pick a variant

Dark, standard

280 × 64. The default. Best on dark headers and status pages.

<a href="https://47daycerts.com/?ref=badge" target="_blank" rel="noopener">
  <img src="https://47daycerts.com/badge/countdown.svg?theme=dark&size=standard"
       alt="Live countdown to shorter TLS certificate lifetimes — 47DayCerts" width="280" height="64" />
</a>

Light, standard

280 × 64. For white docs sites and wikis.

<a href="https://47daycerts.com/?ref=badge" target="_blank" rel="noopener">
  <img src="https://47daycerts.com/badge/countdown.svg?theme=light&size=standard"
       alt="Live countdown to shorter TLS certificate lifetimes — 47DayCerts" width="280" height="64" />
</a>

Dark, compact

190 × 44. Fits in a footer row or a sidebar.

<a href="https://47daycerts.com/?ref=badge" target="_blank" rel="noopener">
  <img src="https://47daycerts.com/badge/countdown.svg?theme=dark&size=compact"
       alt="Live countdown to shorter TLS certificate lifetimes — 47DayCerts" width="190" height="44" />
</a>

Light, compact

190 × 44. Fits in a footer row or a sidebar.

<a href="https://47daycerts.com/?ref=badge" target="_blank" rel="noopener">
  <img src="https://47daycerts.com/badge/countdown.svg?theme=light&size=compact"
       alt="Live countdown to shorter TLS certificate lifetimes — 47DayCerts" width="190" height="44" />
</a>

Live ticking version

If you want hours and minutes as well as days, embed the iframe version instead. It updates every second in the visitor's browser.

<iframe src="https://47daycerts.com/embed/countdown"
        title="Live countdown to shorter TLS certificate lifetimes — 47DayCerts"
        width="360" height="90" frameborder="0" loading="lazy"></iframe>

Usage notes

The SVG is cached for one hour. Day granularity is intentional — the badge never needs to tick.
Add ?theme=light for light backgrounds; dark is the default.
Add &size=compact for the smaller width.
Keep the link to 47daycerts.com so readers can check their own certificates.