Humans can already understand the things you post on your site. By adding a few short class names to your HTML, other people’s software can understand it and use it for things like reply contexts, cross-site comments, event RSVPs, and more.
Multiple h-cards were found on your site! Consider only having one and marking it up as the representative h-card.
To identify the h-card that represents the page, you can:
class="u-url u-uid" on the h-card’s link to https://geheimesite.nl/ class="u-url" rel="me" on the h-card’s link to https://geheimesite.nl/ Here is the first h-card found:
Add a photo!
<img class="u-photo" src="…" />
Robin Boers.
URL
Add your URLs! <a rel="me" class="u-url">…</a>
Got a brief bio like a Twitter/Instagram bio? Add it to your own h-card as a note property! <p class="p-note">…</p>
Given (often first) name
Family (often last) name
Nickname
Email address
City/town/village
Country
Organization
Job title