HTTP/2, an evolutionary leap in the web (including for sites and Google)
It has been called a significant step forward in the complex system of the Web, capable of a offering a whole new set of opportunities for optimizing online applications and improving performance. This is certainly a bombastic presentation for HTTP/2, the second version of the HTTP protocol that-though perhaps more slowly than expected-is also emerging in discourses related to technical site optimizations. Indeed, Googlebot began supporting it in its scans in November 2020, while as of March 2021 it is listed for network requests in Google Lighthouse and PageSpeed Insights reports. So here is an overview of HTTP2, to understand what it is, how it works, why we should care about it, and, concretely, what are the pros and cons of its use and, no less important, what can be its positive aspects for SEO.
What is the HTTP2
HTTP/2 stands for Hypertext Transfer Protocol version 2 and represents the second version of the HTTP protocol, made with the specific goal of improving the speed and efficiency of data transmission, making Web pages faster and more responsive.
More precisely, it is an optimized expression of the semantics of the Hypertext Transfer Protocol (HTTP for all), the protocol that has served the Web for more than 20 years, of which it represents the evolution, and thus HTTP/2 is a protocol for controlling communication between a browser making a request and the server containing the requested information.
In addition to ensuring a technical breakthrough over the previous generation, while maintaining maximum compatibility, the HTTP/2 protocol improves the loading of web pages on various browsers and offers great application simplicity to users, that do not have to make any particular changes to the site to