Company snapshot
| Category | Peer5 | StackPath |
|---|---|---|
| Status | defunct | defunct |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
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.
StackPath was a content delivery network (CDN) and edge computing provider founded in 2015, offering services like content delivery, web application firewall (WAF), DDoS protection, and edge compute solutions. Headquartered in Dallas, Texas, it served enterprises and SMBs with a focus on static content delivery and security. The company ceased all operations and liquidated assets in June 2024, following the shutdown of its CDN services in November 2023. Customers included media, gaming, and web application providers before its closure.
Network & Architecture
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Feature comparison
| Feature | Peer5 | StackPath |
|---|---|---|
waf | ✗ | ✓ |
bot_mitigation | ✗ | ✗ |
ddos | ✗ | ✓ |
rate_limit | ✗ | ✗ |
http3_quic | ✗ | ✗ |
tls13 | ✗ | ✗ |
tiered_cache | ✗ | ✗ |
origin_shield | ✗ | ✗ |
instant_purge | ✓ | ✓ |
stale_while_revalidate | ✗ | ✗ |
stale_if_error | ✗ | ✗ |
image_optimization | ✗ | ✓ |
video_vod | ✗ | ✓ |
video_live | ✓ | ✓ |
drm | ✗ | ✗ |
hls_dash_packaging | ✗ | ✗ |
websockets | ✗ | ✗ |
signed_urls | ✗ | ✗ |
edge_compute | ✗ | ✓ |
functions | ✗ | ✗ |
kv_storage | ✗ | ✗ |
api_first | ✓ | ✓ |
realtime_logs | ✓ | ✓ |
log_push | ✗ | ✗ |
terraform | ✗ | ✗ |
Legend: ✓ = Supported, ✗ = Not supported, — = Not listed
Pricing
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Integrations & DevEx
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When it fits
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When it doesn’t
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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.
StackPath emerged as a consolidator in the CDN market, acquiring MaxCDN (2016) and Highwinds (2017) to bolster its offerings. Its SecureCDN product included WAF and DDoS protection, appealing to media and gaming sectors. Despite raising ~$400M, challenges like management turnover, lack of product focus, and competitive pressures led to its CDN exit in 2023 and full liquidation in 2024. Some customers reported pricing increases and declining support pre-closure.