After being kicked off just about all the known providers, Gab went "underground" and used an undisclosed data center - which will have its own ToS. They're still using services from Cloudflare and that may yet backfire: their current IPs are assigned to Cloudflare which puts them in line for any future backlash against Gab. Their email is handled by ProtonMail and protected by Swiss privacy laws.
Wikipedia wrote:
Gab returned online on November 4, 2018, after Epik agreed to register the domain, and Sibyl Systems Ltd. began to provide webhosting. Epik is an American company that provides domain registration and other web services, and is known for providing services to websites that host far-right, neo-Nazi, and other extremist content. Sibyl Systems is a company that was described in a February 2019 profile by the Southern Poverty Law Center (SPLC) as a "shadowy operation with little transparency on its website, a murky history of ownership and no fixed base of operations". It was founded on October 22, 2018, days before the shooting that resulted in Gab's termination from their previous webhost, and according to the SPLC was possibly based in Norway or in England. Sibyl Systems was later acquired by Epik in the second quarter of 2019.
In August 2019, Amazon Web Services ceased serving Gab's fundraising site due to Gab violating Amazon's policy on hateful content. In response, Torba said he welcomed Amazon's decision, claiming that media coverage of the decision had only brought more attention to Gab and resulted in investment offers.
As of January 2021, Gab was still using Epik as a domain registrar. Instead of hosting its service in the cloud, The Wall Street Journal reported that Gab had been renting hardware in an undisclosed data center. Gab was also using services from Cloudflare.
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Giraffe: a ruminant with a view.