Desktop vs. Mobile Rendering
Optimize how Prerender serves page content for desktop and mobile devices to improve SEO.
If your website is adaptive and serves different pages for desktop and mobile viewports, Prerender can serve both versions. Desktop and mobile rendering allows you to tailor content delivery for desktop and mobile crawlers. Both of these are enabled by default, but mobile rendering can be disabled if necessary.
How It Works
Prerender can differentiate between desktop and mobile requests based on the User-Agent
string.
- For mobile crawlers, Prerender delivers the mobile version of your page.
- For desktop crawlers, Prerender serves the desktop version of your page.
Note: If mobile rendering is disabled, Prerender will serve the desktop version of the page even if the bot requesting for the page is mobile crawler. Additionally, desktop rendering is a default setting and cannot be disabled.
Benefit
- Both desktop and mobile versions of your page are cached. This ensures your pages are ranked and indexed correctly.
How to disable Mobile Rendering:
Note: Mobile rendering is enabled by default.
Step 1: Log in to Prerender(skip this step if you're logged in already).
- Go to Prerender.io log in page.
- Enter your credentials to access your account.
Step 2: Disable Mobile Rendering.
- Navigate to Advanced Settings menu in your Prerender dashboard.
- Find the option "Rendering Devices".
- Go to "Mobile Optimized Rendering".
- Slide the toggle left to disable it.
- Scroll down at the bottom and hit "Apply".
How to verify if a mobile bot request reached our service:
- Emulate a mobile bot request using this guide.
- In the Prerender dashboard, check CDN Analytics menu to see the bot that requested the page.

Additional information:
- You can pre-cache mobile version of your pages using our Recache API and set it to
adaptiveType
. - Enabling mobile rendering will save both a desktop and mobile page separately. Thus, 2x of your page is cached.