Check a site's TLS certificate and its domain registration expiry. Read-only, no sign-in.
Listed on
First seen 21 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
1
Directories
Collected by InvokeRank
2
Tools
From an anonymous probe
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Not graded by Arcade
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| check_certificate | Connects to a domain on port 443 and reports its TLS certificate: whether it is trusted and matches the name, the issuer, the expiry date and days left, the lifetime, the chain and the TLS version. | Read-only |
| check_domain_expiry | Looks up when a domain registration expires, over RDAP at the registry for its TLD. Subdomains are looked up by their registered domain (www.example.co.uk becomes example.co.uk). | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | Boring Utils Expiry Watch | - | 21 Oct 2026 |