Aha! Thanks, I think I may have occasionally seen that out of the corner of my eye, but never really noticed it. 

So that's how people are finding onion addresses!

Signal312

Privacy-aware websites include this HTTP header:

Onion-Location: http://mempoolhqx4isw62xs7abwphsq7ldayuidyx2v2oethdhhj6mlo2r6ad.onion/


Privacy-aware web browsers will acknowledge this header and add this to the URL bar when you visit the site on clearnet.

Click the "purple" button to enter The Onion.

Tor Browser, Mullvad Browser, Brave Browser, etc.

privacy

Mempool.space - should Tor be used, for looking at specific transactions?

Privacy-aware websites include this HTTP header:

```
Onion-Location: http://mempoolhqx4isw62xs7abwphsq7ldayuidyx2v2oethdhhj6mlo2r6ad.onion/

```

Privacy-aware web browsers will acknowledge this header and add this to the URL bar when you visit the site on clearnet.

![onion site availible](https://i.stack.imgur.com/VYtfP.png)

Click the "purple" button to enter The Onion.

Tor Browser, Mullvad Browser, Brave Browser, etc.