Rendering Queue: Google Needs 9X More Time To Crawl JS Than HTML

Two lane flow diagram of google two wave indexing, showing html indexed immediately while javascript waits in the render queue before rendering and indexing, with a bar comparison of about 9 times more time for javascript.

Rendering Queue: Google Needs 9X More Time To Crawl JS Than HTML

An experiment to find out how long it would take Googlebot to crawl JavaScript vs HTML…

Diagram comparing client side rendering and server side rendering, showing how server side rendering lets a crawler read the main content on the first fetch for faster and more reliable indexing.

5 case studies showing the benefits of server-side rendering

Kevin Indig shares 5 case studies that show the benefits of moving to server-side rendering.

Diagram of google two wave indexing showing html content indexed in the first wave while javascript dependent content waits in the render queue and is indexed later, with a bar comparison of rendering cost per page.

JavaScript vs. Crawl Budget: Ready Player One | Onely

An experiment to understand the impact of JavaScript on crawling and indexing.

Diagram of the render gauntlet request blocking test showing googlebot fetching html, queuing for render, having a resource blocked, then diffing the rendered dom to find critical resources.

Render Gauntlet (Request Blocking) | ohgm

An experiment showing a single point of failure can cause the JavaScript not to load content.

Split test diagram comparing a control product page with an empty price node against a test variant where javascript renders the price for indexing.

Can adding pricing information client-side increase SEO performance?

A case study showing the impact of adding cheapest pricing to a title tag using JavaScript

Diagram comparing client side rendering, server side rendering, and static generation for web page performance in next. Js.

Improving Web Page Performance Server-Side Rendering with Next.JS

A detailed case study showing the impact of DoorDash migrating to NextJs.

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