Fastly

Fastly is an American cloud computing services provider.
Fastly describes their network as an edge cloud platform, which is designed to help developers extend their core cloud infrastructure to the edge of the network, closer to users. The Fastly edge cloud platform includes their content delivery network, image optimization, video and streaming, cloud security, and load balancing services. Fastly's cloud security services include denial-of-service attack protection, bot mitigation, and a web application firewall. Fastly web application firewall uses the Open Web Application Security Project ModSecurity Core Rule Set alongside its own ruleset.
The Fastly platform is built on top of Varnish.
History.
Fastly was founded in 2011 by Artur Bergman, previously chief technical officer at Wikia. In June 2013, Fastly raised $10 million in Series B funding. In April 2014, the company announced that they had acquired CDN Sumo, a content delivery network add-on for Heroku. In September 2014, Fastly raised a further $40 million in Series C funding, followed by a $75 million Series D round in August 2015.
In September 2015, Google partnered with Fastly and other content delivery network providers to offer services to its users. In April 2017, Fastly launched its edge cloud platform along with image optimization, load balancing, and a web application firewall.
Fastly raised $50 million in funding in April 2017, and another $40 million in July 2018. The company filed for an initial public offering (IPO) in April 2019 and debut on the New York Stock Exchange on May 17, 2019. In February 2020, Bergman stepped down as CEO and assumed the role of chief architect and executive chairperson; Joshua Bixby took over the CEO role.
In August 2020, Fastly announced it was acquiring cybersecurity company Signal Sciences for $775 million ($200 million in cash and $575 million in stock).