Yes. It's finally here.
👉 Please note: it is not 100% effective on all types of log-in pages.
Therefore, you will simply need to test it on your specific site, because it all depends on how your site technically allows for authentication.
ALTERNATIVELY - You can select
Include Custom HTTP Header in the new sitemap
form under *Advanced Settings* so that we send the header with
a unique value assigned to your team with every request we send.
This is very useful for whitelisting our traffic.