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The Performance Cost of Server Side Rendered React on Node.js

Last updated 2 years ago by Jani Tarvainen


I like React as a templating engine, not only on the client side but on the server as well. Over the last year or two rendering templates with React.js on the server has become commonplace. Services from rather static content driven sites to Universal JavaScript Applications built on frameworks like Next.js are serving dynamic of server side rendered views using React.

While I like the concept of the guarantees of structure and validity, I do recognise that there’s a lot of overhead in how it works for constructing just a single view server side. This is why I decided to examine just how much overhead there is compared to more traditional templating engines that work on strings and don’t guarantee structure of the generated HTML markup.

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