Domain and certificate expiry check.
Enter a domain and we read two dates: when its HTTPS certificate expires, and when the domain name itself is due for renewal. Missing either one stops the website.
Free. No sign-up.
What it checks.
Certificate
- The date it expires, and how many days are left
- Whether browsers accept it for this name
- Who issued it
- The bare domain and the www address, which can differ
Domain name
- The date the registration runs out, where the registry publishes it
- The registrar it is held with
- The date it was first registered
When it warns
- A certificate inside its last 30 days, or its last quarter if it is a short one
- A domain inside its last 60 days
- Anything that has already run out
What it cannot tell you.
- The .au registry does not publish expiry dates, so for a .com.au or .net.au name we can show the certificate only. Your registrar has the date.
- It reads today’s dates. It does not watch them, and it will not remind you.
- It cannot see who receives the renewal notices, which is how most domains are lost: the notice goes to somebody who has left.
Further reading
- lesson Beginner 2 min read What is an SSL certificate? An SSL certificate proves a website belongs to its domain name and lets browsers encrypt the connection. Who issues one, and why it expires.
- lesson Intermediate 3 min read Domain name vs web hosting: what’s the difference? The domain name is the address and the hosting is where the website lives. Why they are separate, and why the business should hold both logins.
- lesson Beginner 3 min read What is a domain name? A domain name is the readable address of your website and email. How names are built, who may hold a .au name, and why renewal matters.
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Tell us what needs sorting.
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