The official website announcement states that part of the site with OSINT tools was removed on June 6 because of DDos attacks.
The OSINT Tools area, along with the previous public forum, have been under constant attacks for many months. After upgrading servers twice, the issues seemed under control. Beginning in May of 2019, we saw increased daily DDOS style attacks which caused a complete suspension with our host on June 6th.Intel Techniques Administrators
Intel Techniques was one of the first web pages to provide a free and advanced search of a very large number of resources including Facebook, Instagram, Twitter, Youtube, Google and Pastebin services.
Removing access to the tools was mandated by the host in order to reinstate our account. They will only be available to members of the online video training, said by Intel Techniques administrators.