How SEO can gain from using HTTP2

Technology Research & Development

Updated on Jul 27, 2021

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HTTP has been a part of the SEO lexicon because the Hypertext Transfer Protocol is the backbone of technical SEO. Currently, HTTP/ 2 makes a lot of noise to make its presence felt, and users must take note of it and use the opportunity to improve page load speed. To know what HTTP/2 is and how to make its best use for SEO, keep reading this article. To gather more insights about the practical aspects of HTTP/2, you can talk to the experts at

What is HTTP/2?

The communication between the browser and the server is governed by the HTTP/2 protocol that defines the ways that browsers can use for sending requests to the server and how the server stores the requested information. The earlier version of HTTP/1 had been in use since 1999. After serving the web for 15 years, it necessitated introducing the latest version that Google has already started using since November 2020. It has already covered more than 50% of URLs with the HTTP/2 protocol. According to Google, the new protocol will speed up the crawling process by the bots.

Why HTTP/2?

HTTP/2 helps to overcome the latency experienced with HTTP/1 that resulted from its limited ability to accommodate 6 connections at a time that resulted in queuing up of other requests that had to wait for its turn. And this is where HTTP/2 makes all the difference by positively impacting how the requests behave. The Multiplex feature of HTTP/2 provides a wider pathway for accommodating more requests simultaneously in the network connection that helps to deliver faster responses. The contents of the requests and responses are handled differently without making any changes to them. The Server Push feature of HTTP/2 allows the server to provide multiple responses to a single request at any point in time.

For example, it is now possible to return JavaScript and CSS files together with the HTML simultaneously without delivering them individually to the server.

Benefits of HTTP/2

SEO would benefit from the transition to HTTP/2, although it does not require too much effort from the SEO side nor the need to change URLs. However, there is a marked improvement in web performance, mobile performance, and user experience.

Web performance –

Many of the new features of HTTP/2 aim at improving website performance and ensure faster crawling by saving resources. Due to multiplexing, there are no chances of requests and responses obstructing each other that help to reduce latency and improve website performance. Sending and receiving more data per communication improves performance. Effective resource utilization happens due to stream prioritization that ensures faster delivery of content to users.

Mobile performance –

Since HTTP/2 considers the current usage trends in the design, besides improving web performance, it improves mobile performance. Header compression and multiplexing reduces latency across mobile networks with limited bandwidth.

Better user experience –

Better web and mobile performance translate into an improved user experience. As websites loads faster, users are happy to see pages loading within 1-3 seconds.

HTTP/2 ensures encryption and security in the same way as HTTPS and protects the applications from online attacks.

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