# deCDN

> A decentralized CDN. Anyone can serve bytes; clients pay per megabyte in USDC. An open market that gets cheaper as it grows, at ~$0.01/GB, up to 90% below legacy CDN list pricing.

deCDN is demand-shaped, locality-optimised delivery for large files at scale: supply forms around demand, cost collapses as regional traffic concentrates. Clients stream from several peers at once, verify every chunk against a BLAKE3 tree hash, and pay per megabyte in USDC — whether the payload is a Linux ISO, a dataset, a game patch, a media library, or an AI model.

A fetch runs in three steps: probe (ask nearby peers who has the file and at what rate), swarm (stream from the best of them in parallel, verifying every chunk), settle (pay per megabyte in USDC as the bytes arrive). llms-full.txt below reproduces each step in full.

Status: testnet v0. The protocol runs end-to-end in a test environment; a public testnet and the open-source release are targeted for Q3 2026. The $0.01/GB figure quoted across this site is a public target rate, not a protocol-enforced price.

## Site

- [deCDN](https://decdn.org/): A decentralized CDN. Anyone can serve bytes; clients pay per megabyte in USDC. An open market that gets cheaper as it grows, at ~$0.01/GB, up to 90% below legacy CDN list pricing.
- [field notes](https://decdn.org/blog/): long-form posts on the deCDN protocol.
- [llms-full.txt](https://decdn.org/llms-full.txt): Every page on this origin as one plain-text document: homepage copy, the comparison matrix, the FAQ, all field notes, and the legal documents.

## Protocol documentation

- [docs.decdn.org llms.txt](https://docs.decdn.org/llms.txt): Curated index of the protocol documentation, served by the docs host.
- [docs.decdn.org llms-full.txt](https://docs.decdn.org/llms-full.txt): The full protocol documentation as one plain-text document.

## Field notes

- [Show Me the Money: A 100-TB/Month Node, Line by Line](https://decdn.org/blog/show-me-the-money/): A single decdn node at the 100-TB/month launch-fleet target, walked line by line: $1,024 billed, $355 left in liquid USDC after the FeeRouter split, cache-miss pulls, infrastructure, and gas.
- [The Road to Testnet: decdn in 2026](https://decdn.org/blog/road-to-testnet/): What decdn has already shipped end-to-end, and the path through a Q3 2026 public testnet and open source to a Q1 2027 mainnet target.
- [Stablecoin Settlement Is Not a Footnote](https://decdn.org/blog/stablecoin-settlement-is-not-a-footnote/): Every prior decentralized delivery network priced bandwidth in a token whose value could halve overnight. decdn settles delivery in USDC and reserves its native token for alignment — bonding, governance, and buyback-and-burn.
- [We Don't Store. We Serve.](https://decdn.org/blog/we-dont-store-we-serve/): A storage network and a delivery network optimize for opposite invariants. decdn doesn't store — it serves, and leaves origin storage where it already works.
- [The Decentralized-CDN Graveyard](https://decdn.org/blog/decentralized-cdn-graveyard/): Six decade-spanning attempts at a decentralized CDN. What each got stuck on, and why those blockers are now resolved.
- [Why Now](https://decdn.org/blog/why-now/): Decentralized CDN attempts have been blocked for a decade by missing prerequisites — transport, addressing, settlement, L2s. All four finally landed.
- [What We're Building](https://decdn.org/blog/what-were-building/): What decdn is, who it's for, and what the protocol composes — a plain-English introduction.

## Optional

- [deCDN litepaper (PDF)](https://decdn.org/decdn_litepaper.pdf): The protocol litepaper.
- [Press kit](https://decdn.org/presskit/decdn-presskit.zip): Logos and wordmarks, as a zip archive.
- [privacy policy](https://decdn.org/legal/privacy/): How decdn.org handles personal data — a static site that sets no cookies, runs no analytics, and tracks nothing.
- [terms of use](https://decdn.org/legal/terms/): Terms of use for the decdn.org website, operated by deCDN Labs, Inc. These govern the website, not the deCDN protocol.
- [disclaimer](https://decdn.org/legal/disclaimer/): Everything on decdn.org is information, not advice — no offer of tokens or securities, and a forward-looking-statements notice.