If you run your own domain, you can change the handle of your Bluesky account to your domain name. This provides a bit of an identity verification. See here: bsky.social/about/blog/4...
Note that I am not an IT security expert and can't speak to any security issues that might arise from this.
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How to set your domain as your handle - Bluesky
Using a domain as your handle helps with account identity, verification, and portability. Here's how to set your domain as your handle.