[jolan]

The "How It Works" page (https://letsencrypt.org/howitworks/) says:

- Obtain a browser-trusted certificate and set it up on your web serve

IdenTrust is listed as a sponsor and is the CA for the letsencrypt.org certificate so I'm guessing they're doing some sort of partnership.

[tmmm]

I mean ordinary people who will visit the page.

[abritishguy]

"browser-trusted certificate" < it is already trusted by them