> For the complete documentation index, see [llms.txt](https://infra.newerasec.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://infra.newerasec.com/infrastructure-testing/enumeration/services-ports/443-https.md).

# 443 - HTTPS

openssl show cert:

`openssl s_client -showcerts -connect mail.nixcraft.net:443`

Connect to a service on ssl:

```
openssl s_client -connect mail.nixcraft.net:443
```