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Posted on:August 4, 2021 at 00:00:00

When your first start working in the JAMStack or any web development for that matter, one thing you notice is there are a lot of acronyms thrown about. We have SSG, ISG, SSR, SWR and so much more, so today we are going to look at SSG and SSR.

What is SSG?

SSG or Server Side Generation enables developers to create static pages, whether the data is completely static, as in you manually create a full page with all the details hard coded or you have dynamic data that you plugin into a template.

How does SSG Work?

SSG is created a build time, this means build could be potentially slower than you are used to but when a user lands on your site, its blazing fast because everything has been created and is just a file served up. You could think of SSG as a Car dealership:

What is SSR?

SSR or Server Side Rendering has been popular for years, but recently it has been gaining a lot of traction in the JavaScript space. Unlike SSG, SSR dynamically populates a page when the user requests it.

How does SSR work?

SSR as I explained in the quick summary above, it dynamically populates the page as a user requests it versus being populated at build time.For example if a user navigates to /blog/ssr-is-cool then the server will render the blog post and return it to the user. This is great for the user if they want the “freshest” data as they land on the site, but it is not great for the developer if they want to make the site faster. You can think of SSR as Tesla versus a car dealership:

I hope this extremely brief explanation of SSG and SSR will help you the next time you are building a project in the JAMStack! Make sure to drop me a comment below if you have any questions!

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