When the first sentence on the page is "This website requires Javascript to be enabled.", I leave; but not before looking at the source and discovering a relative monstrosity, unlike the original PuTTY site which is almost pure content.
I'm sure it's a great piece of software, but sometimes, the simpler is better. I used PuTTY for a decade or so, and while it was kinda ugly and clunky, it's very beautiful and perfect because of its imperfections.
I used to. Being able to store all my configs in simple text files that I could easily move from machine to machine was the killer feature for me.
There are two pieces of software named Kitty. That one is the other one. (-:
Little bit unrelated, but it is super annoying that this site breaks back button in browser.