New: Google Dynamic Rendering To Help With JavaScript In Search

May 15, 2018 - 7:41 am 7 by

Google Dynamic Rendering

Friday I mentioned something new that Google introduced named Dynamic Rendering. Google has still not come out with anything official about it, outside of what was mentioned in the video I posted last week. In short, dynamic rendering is Google's way of helping you get your JavaScript sites indexed by Google.

Google's John Mueller began explaining it a the 21 minute mark into the video. He said "we have a another option [for JavaScript and search] that we'd like to introduce, we call it Dynamic Rendering." He explained "dynamic rendering is the principle of sending normal client-side rendered content to users and sending fully server-side rendered content to search engines and to other crawlers that need it."

Of course, some might call this out as cloaking, but Google said there is a specific policy change for dynamic rendering for this. You serve the server-side rendering to Googlebot and the client-side or hybrid rendering to the user. Here is John's slide on that:

Google Dynamic Rendering Flow Chart

Tools to help you set it up are from Puppeteer and Rendertron:

Google Dynamic Rendering Tools

Here is a diagram on how to set it up with the tools mentioned above:

Google Dynamic Rendering Infrastructure

Google says you should use dynamic rendering when the site is large and changing rapidly, when it uses modern JavaScript features supported in Chrome 41 or above and sites that have strong social media presences should also consider using it:

Google Dynamic Rendering When To Use

I don't know much more outside that Google will share more information about this in the future:

Here is the video embed when John first began talking about dynamic rendering:

Forum discussion at Twitter.

Update: Some folks asked by social sites? It is because the social sharing buttons need rendered pages in order to serve up the images and content to be shared:


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