I'm using the codeforces API to collect data about contestants from my university. We have an internal leaderboard where we display it.
Lately, our leaderboard is not working. I've been receiving '403 — Forbidden' responses. (See image: https://imgur.com/3Zy1PIa) I get a positive response when I open the link in the browser. (See for yourself: https://codeforces.com/api/user.info?handles=mblazev;Tantor;pnikic;ajovanov;markotee;Tomx;;heon;Kadak;pkelava )