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

https://garrettsinsightfulchat.wordcanopy.com/posts/does-anubis-track-me-with-fingerprinting

You’re seeing an Anubis anti-bot Proof-of-Work check to make sure you’re a real visitor, not an automated bot. This helps keep the site safe and running smoothly for everyone