Company snapshot
| Category | Microsoft Azure | Verizon Media (VMDS) |
|---|---|---|
| Status | active | defunct |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
Microsoft Azure CDN provides content delivery services through a global network of edge nodes, integrated with Azure’s cloud ecosystem. It serves enterprises, developers, and media companies, offering caching, security, and analytics. The service supports web content, video streaming, and edge compute capabilities. Azure partners with Akamai and Verizon for its underlying infrastructure in some configurations.
Verizon Media (VMDS), originally Verizon Digital Media Services and formerly known as Edgecast, was a content delivery network (CDN) provider specializing in media and content delivery. Launched as a Verizon division, it served media companies and enterprises with scalable content distribution. In 2021, Verizon sold its media division, including VMDS, to Apollo Global Management, which rebranded it as Edgecast under Yahoo. In June 2022, Limelight Networks acquired Edgecast, forming Edgio. Edgio filed for Chapter 11 bankruptcy in September 2024, shutting down its CDN services on January 15, 2025. Select Edgecast assets were sold to Parler in February 2025 for $7.5 million.
Network & Architecture
Azure CDN operates over 100 points of presence (POPs) globally, with strong coverage in North America, EMEA, and APAC. It leverages Microsoft’s global backbone and partnerships with Akamai and Verizon for optimized routing and peering. The service supports HTTP/3 and dynamic content acceleration. Limited public data exists on specific peering arrangements or regional performance nuances.
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Feature comparison
| Feature | Microsoft Azure | Verizon Media (VMDS) |
|---|---|---|
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
Azure CDN uses a pay-as-you-go (PAYG) model with tiered pricing based on regions and usage. No free tier is offered, and pricing is enterprise-focused. Example: data transfer costs ~$0.08/GB in North America (subject to change). Full details at https://azure.microsoft.com/en-us/pricing/details/cdn/.
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Integrations & DevEx
Azure CDN supports Terraform for infrastructure-as-code. SDKs are available for multiple languages (Python, .NET, Java). Real-time logs and analytics integrate with Azure Monitor. Migration tools are provided for importing configurations from other CDNs. The API-first approach simplifies integration with CI/CD pipelines.
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When it fits
- Enterprises already using Azure services, seeking seamless CDN integration.
- Organizations needing global reach with strong North America and EMEA presence.
- Developers requiring edge compute with Azure Functions and Terraform support.
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When it doesn’t
- Small businesses or startups looking for a free tier or lower-cost options.
- Users needing specialized video features like HLS/DASH packaging or DRM.
- Those requiring detailed public data on network peering or POP specifics.
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History & Notes
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Verizon Media (VMDS) grew from Verizon’s 2013 acquisition of Edgecast, aiming to compete in media and ad tech. Despite $370 million in platform investment, it struggled against larger competitors. The 2021 sale to Apollo shifted its CDN to Edgecast, which merged with Limelight to form Edgio in 2022. Edgio’s bankruptcy in September 2024, due to accounting issues and debt, led to its CDN shutdown. Parler’s February 2025 acquisition of Edgecast assets supports its own platforms (Parler Social, PlayTV), with 120 former Edgio employees joining and a one-year IP license. The viability of Parler as a general CDN provider remains unclear.