[2] The addition of Silk to the Echo Show was announced at an Amazon event in September 2018.

[4] Silk gives SPDY performance improvements for non-SPDY optimized websites if the pages are sent through Amazon's servers.

[5][6] Some privacy organizations raised concerns with how Amazon passes Silk traffic via its servers, effectively operating as an Internet service provider for those using the browser.

The Silk browser includes the option to turn off Amazon server-side processing.

[7][8][9] On July 26, 2016 it was reported that Silk prevents access to Google over HTTPS, but that bug has since been fixed.