Company snapshot
| Category | Instart Logic | Level3 |
|---|---|---|
| Status | defunct | defunct |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
Instart Logic was a content delivery network (CDN) provider that specialized in accelerating web and mobile application performance through endpoint-aware technology. Founded in 2010 and headquartered in Palo Alto, California, it served clients like Neiman Marcus and Kate Spade, focusing on optimizing content delivery and online advertising. The company was acquired by Akamai in February 2020, and its operations have since been fully integrated, rendering Instart Logic defunct as a standalone entity.
Level3, originally Level 3 Communications, was a multinational telecommunications and internet service provider that operated a global Tier-1 network and content delivery network (CDN) until its CDN services were discontinued in 2023. Acquired by CenturyLink (now Lumen Technologies) in 2017, it provided core transport, IP, voice, video, and content delivery for medium-to-large internet carriers. The CDN focused on video delivery, large object caching, and edge computing, serving clients across North America, Latin America, Europe, and parts of Asia. Level3’s CDN is no longer active, and its network assets are now managed under Lumen Technologies.
Network & Architecture
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Feature comparison
| Feature | Instart Logic | Level3 |
|---|---|---|
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
Instart Logic was a notable CDN player, raising $167 million across multiple funding rounds from investors like Andreessen Horowitz and Kleiner Perkins. Its Digital Experience Cloud used AI and machine learning to optimize content delivery, particularly for e-commerce and media companies. The 2020 acquisition by Akamai included customer contracts and IP, primarily to enhance Akamai’s page integrity solutions. No official EOL notice remains publicly accessible, but Akamai’s press release confirms the transition (https://www.akamai.com/newsroom/press-release/akamai-technologies-acquires-customers-and-select-intellectual-property-from-instart).
Level3 was a major player in the CDN market, leveraging its Tier-1 network to deliver high-performance content delivery, particularly for video and large files. Its acquisition of companies like Genuity, WilTel, and TW Telecom expanded its footprint, but the 2017 merger with CenturyLink shifted focus to broader network services. The CDN’s shutdown in 2023 was part of Lumen’s strategic pivot, though specific reasons for discontinuation were not publicly detailed. Some network assets may still support Lumen’s non-CDN services.