If the site you're linking is part of your own website, though, you won't need to type in the full URL for your HTML link. If you were linking to your bio, for instance, you would write it as: My Bio.

To add links to your Tumblr bio, you'll need to use a simple HTML code. Tumblr doesn't give you any sort of built-in way to add links yourself, so you'll have to copy and paste the code in manually.