I am using Tor Browser 11.5.7 (based on Mozilla Firefox 91.13.0esr) (64-bit)

torproject support says:

Onion-Location is a new HTTP header that web sites can use to advertise their onion counterpart. If the web site that you're visiting has an onion site available, a purple suggestion pill will prompt at the URL bar saying ".onion available". When you click on ".onion available", the web site will be reloaded and redirected to its onion counterpart.

Earlier, when I browsed a site (in Tor Browser) which has a .onion counterpart, the browser would suggest ".onion available". Now it is not doing that. What might be the reason? How can I get the early behavior?

  • I think it's might be because they use two different servers to their onion and clearnet address. Nov 26, 2022 at 14:24
  • 1
    The most likely reason is like you just described - if a .onion site is available then the website operators have to advertise it proactively, by sending those headers. Most likely they aren't, and this is something you could easily check, either by looking at the HTML source code, or watching the response headers using the browser tools.
    – Kate
    Nov 26, 2022 at 14:33


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