Feeder page Polymarket | Official Site | Log In presents a fake Cloudflare-style D.O.S. screener, which links to the typo domain
https://xn--polymarkt-ihb.app/
(“code” mode to avoid automatic em-dash conversion from the double-hyphen!)
a.k.a. https://polymarkēt.app/ .
The site wants passwords and passphrases for various crypto wallets.