One of the largest collections of online material belonging to groups calling themselves the Islamic State or ISIS has been discovered by a number of Institute for Strategic Dialogue (ISD) researchers.
This digital library contains more than 90,000 files and is expected to receive 10,000 unique visitors each month.
Experts say the library provides extremist content on the internet.
However, this library is difficult to delete because data storage is not only in one place.
And although the anti-terrorism authorities in Britain and America have been warned about this collection of data, the fact is that the library continues to grow.
This library was discovered after the death of ISIS leader, Abu Bakr al-Baghdadi, in October 2019.
At the time, many posts on social media supporting the organization contained a short link.
This link guides researchers to collections of documents and videos in nine different languages.
It includes details of a number of attacks, including the bomb attacks on the Manchester Arena on 22 May 2017, in London on 7 July 2005 and the United States on 11 September 2001.
For months the researchers studied how the library developed, how it is managed, and who its visitors are.
The data is spread throughout the system that is not centralized, not just on a single server computer.
Anyone can share content across the network, via servers from multiple locations.
And this hinders any attempts to take him offline.
But as long as the Caliphate Cache is alive, this helps ISIS provide the means to continuously spread content.