How to: Monitoring domain expiration
You can monitor the expiration of a domain with all endpoint types except for DNS by using the `[DOMAIN_EXPIRATION]`
placeholder:
```yaml
endpoints:
  - name: check-domain-and-certificate-expiration
    url: "https://example.org"
    interval: 1h
    conditions:
      - "[DOMAIN_EXPIRATION] > 720h"
      - "[CERTIFICATE_EXPIRATION] > 240h"
```

> ⚠ The usage of the `[DOMAIN_EXPIRATION]` placeholder requires Gatus to use RDAP, or as a fallback, send a request to the official IANA WHOIS service
> [through a library](https://github.com/TwiN/whois) and in some cases, a secondary request to a TLD-specific WHOIS server (e.g. `whois.nic.sh`).
> To prevent the WHOIS service from throttling your IP address if you send too many requests, Gatus will prevent you from
> using the `[DOMAIN_EXPIRATION]` placeholder on an endpoint with an interval of less than `5m`.