You’re seeing the Anubis anti-bot Proof-of-Work check to make sure you’re a...

https://felixssuperperspective.brightsora.com/posts/why-do-scrapers-cause-downtime-for-websites

You’re seeing the Anubis anti-bot Proof-of-Work check to make sure you’re a real person and not a bot. This helps keep the website safe and running smoothly