Overview

Peer5 operated a peer-to-peer (P2P) content delivery network (CDN) specializing in live video streaming, leveraging WebRTC for in-browser, clientless enterprise CDN (eCDN) solutions. Founded in 2012, the company was acquired by Microsoft in August 2021 to enhance video streaming capabilities in Microsoft Teams. Peer5’s technology optimized bandwidth usage through self-balancing mesh networks, serving large-scale enterprise events with up to 2 million concurrent users. As of 2025, Peer5’s standalone services are defunct, with its technology integrated into Microsoft’s eCDN for Teams.

Sunset timeline

  • 2012: Peer5 founded in Palo Alto, CA, by Hadar Weiss, Guy Paskar, and Shachar Zohar, focusing on WebRTC-based P2P CDN for video streaming.
  • 2014–2017: Raised $4.05M in funding, including a $2.5M seed round in 2017 from Y Combinator and other investors.
  • August 10, 2021: Acquired by Microsoft to enhance live video streaming in Microsoft Teams; Peer5 team joined Microsoft Israel R&D.
  • Post-2021: Peer5’s standalone services phased out, with technology integrated into Microsoft’s eCDN solution for Teams; no public EOL date specified.

Migration guidance

Customers using Peer5’s standalone eCDN services should migrate to alternative providers, as Peer5 no longer operates independently. For enterprises seeking similar WebRTC-based eCDN solutions for video streaming, consider Akamai for its robust video CDN capabilities or Cloudflare for global reach and video streaming features. Microsoft Teams users can leverage the integrated Microsoft eCDN, which incorporates Peer5’s technology. Check Microsoft’s official documentation for Teams eCDN setup: https://www.microsoft.com/en-us/edge-to-edge-solution/.

History & Notes

Peer5 was known for its innovative use of WebRTC to create a decentralized, browser-based P2P CDN, reducing server load and improving video delivery for large audiences. The company powered events for over 1 billion users before its acquisition. No official EOL announcement for standalone services was found, but Peer5’s website now redirects to Microsoft’s eCDN page, indicating full integration. Some third-party sources mention continued support for existing Peer5 customers post-acquisition, but this is unconfirmed as of 2025.