[jasode]

>looks exactly like a regular k in the address bar.

Because there's a quick 302 redirect from "ķeepass.info" to "keepass.info" :

Chrome F12 Dev Tools network trace: https://imgur.com/a/vrxjsUV

Whether that redirect was there at the time of the Arstechnica article, I don't know.

EDIT ADD: around 12:57 UTC, the 302 redirect was changed to a Youtube video: https://imgur.com/a/TtLxafP

(Somebody is apparently having fun trolling the internet.)

ICANN lookup trivia says "ķeepass.info" domain was created 3 days ago:

  Domain Information
  Name: xn--eepass-vbb.info
  Internationalized Domain Name: ķeepass.info
  Registry Domain ID: a375f89abb384328a10460509f9f99f8-DONUTS
  Domain Status:
  clientTransferProhibited
  addPeriod
  Nameservers:
  leia.ns.cloudflare.com
  sevki.ns.cloudflare.com

  Dates
  Registry Expiration: 2024-10-16 10:21:45 UTC
  Updated: 2023-10-19 11:40:19 UTC
  Created: 2023-10-16 10:21:45 UTC

[Quikinterp]

Well that's good news, I was a little worried that it would be impossible to tell on mobile