SSR (Server-side Rendering)

The applications is pre-rendered on the server. The output is static HTML content.

In the past, search engines had difficulty crawling and indexing websites created with JavaScript rather than HTML. While Google has claimed that the Googlebot is able to crawl and index JavaScript-based web pages without any problems, other search engines like such as Bing, Yandex, or DuckDuckGo can’t crawl JavaScript properly, making server-side rendering relevant for any application involving search engine optimization.

Server-side rendered HTML usually gets hydrated on client-side.