Yes, after a planned maintenance outage, the eclipse.org website was unfortunately unreachable up to now (2. August, 2021), but is coming back up right now. Please try again. The load balancing might require some reloading of the website and there might still be some issues until everything will be fully recovered, but downloading using a mirror should not be a problem.
Update – Issue is coming from our main storage backend that requires a
full resynch in order to be in working condition again. Given the data
size, it will take about 13 hours. Thanks for your patience. We will
keep you posted.
Aug 1, 09:37 EDT
See also @Eclipse_Status on Twitter.