# HTTP/3

CEFR C2 · Noun

Source: https://englishreference.com/word/http-3
Updated: 2026-07-22

## Definition

Stands for Hypertext Transfer Protocol version 3. The newest way that web browsers and servers talk to each other to make websites load faster and more securely.

For teachers: Abbreviation for Hypertext Transfer Protocol version 3. The third major version of the Hypertext Transfer Protocol, which uses the QUIC transport protocol to reduce latency and improve performance over unreliable networks.

## Examples

- HTTP/3 makes websites load much faster on your mobile device.
- Many modern web browsers now support HTTP/3 to improve connection speeds and security.
- By utilizing the QUIC transport protocol instead of TCP, HTTP/3 significantly reduces latency and improves performance on unstable networks.

## Usage notes

- Typically used as a proper noun in technical contexts; often appears without an article.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.