The Wakatime.com domain was registered in 2013 around the same time these covert websites were all being replaced. Also the creator of wakatime is an American living in Vienna, known to be the city of spies.

I have researched this now.

According to https://tools.whoisxmlapi.com/whois-history-search the domains were registered June 11, 2023, shortly after my article came out.

They are therefore likely just made by wakatime's founder Alan Hamlett: https://www.linkedin.com/in/alanhamlett/ as a bit of Guerrilla Marketing. Fair play.

When I saw on LinkedIn that he worked for a web security contractor until September 2013, I almost flipped. But appears unrelated however unfortunately except for his general interst in WEBSEC, so another dead end.

Nice, I hadn't noticed that! I'll add a mention to the article. Some do fail DNS resolution though.