The next version of the internet is here.


Web browsers, web servers and other critical pieces of web infrastructure are getting support with this new standard. This is the modern version of HTTP, which web browsers use to communicate with web servers and send data back and forth. 

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Modern protocols

Performance, security and flexibility for the modern web.

The benefits of HTTP/3 and QUIC are most evident for businesses that rely heavily on mobile users, or have customers in parts of the world that have spotty internet connections.

Deliver a better experience globally

Web traffic flows faster because it’s designed to avoid head-of-line blocking and offers a low-latency handshake that significantly reduces rebuffering.

Secure more with built-in encryption

TLS 1.3 - the latest version of the Transport Layer Security protocol - is built directly into QUIC. This design more effectively secures headers and metadata from third parties, ensuring more private, trustworthy connections than ever before.

Integrate deeper to innovate faster

Because QUIC runs in userspace, it integrates seamlessly with Fastly’s tooling, tracing and logging infrastructure. This makes it easier for developers to run and learn from experiments, enabling more rapid deployment and evolution of sites and apps.


Latest version of the internet

Explore the key features and how they are enhancing the performance, security and reliability of internet communication.

Faster connection establishment

QUIC's handshake is much faster, as it combines the initial connection setup and encryption handshake into a single step, reducing latency, especially for users connecting to a server for the first time.

Enhanced security

HTTP/3 ensures that data exchanged between the client and the server remains secure and protected from attacks. HTTP/3 uses TLS 1.3 for encryption, which is the most up-to-date and secure version of the Transport Layer Security protocol.

Improved reliability

QUIC includes built-in mechanisms for detecting and recovering from packet loss or network congestion more efficiently. When a packet is lost, QUIC can retransmit only the lost packet while preserving the order of the other packets, ensuring a smoother browsing experience, even on unreliable networks.

See how Loveholidays got 18% faster with HTTP/3.
Travel and hospitality

"94% of browsers already support HTTP/3 and here at Loveholidays we like to be on the cutting edge so when our CDN partner Fastly enabled it, we decided to give it a go. Loveholidays is 18% faster with HTTP/3."

David Annez

Head of Engineering

Looking for more?

QUIC is now RFC 9000

QUIC is a new latency-reducing, reliable and secure internet transport protocol that is slated to replace TCP the most commmonly used transport today.

Read more

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