{ Prerender for developers }

A simple solution to your JavaScript rendering problems

Prerender is the ultimate rendering choice for developers managing SPAs and frequently changing JavaScript sites.

A Seamless Integration

Prerender slots right into your workflow, no matter your tech stack.

Compatible with Popular Frameworks

ReactJS

AngularJS

VueJS

And More

In-House SSR vs. Prerender

Feature

In-House SSR

Prerender.io

JavaScript Execution:

JavaScript files are executed on-demand

JavaScript files are executed ahead of requests or on-demand

Ideal For:

Best for dynamic content with Node.js backend

Best for static and dynamic content hosted on enterprise-size sites and SPAs

Server Dependance:

Relies heavily on server performance

A cloud-based JavaScript SEO solution

Cache:

Usually no caching

Custom cache freshness

Cost:

$120k+ upfront, plus maintenance fees

Free installation, paid plans start at $90/month

Why Developers Love Prerender

Results in Weeks, Not Months

faster indexing

0 %

crawl efficiency

0 X

increase in organic traffic

0 %

How Prerender Works

We intercept any crawler requests and analyze the user agent string.

If the requests come from search engine crawlers, we fetch and serve them the pre-rendered version of your page.

If they’re from human users, they’ll be directed through your normal server route.

1. Direct User Access

This is how your website system operates by default.

When requests come from human users, your web system handles them without our intervention.

3. Repeated Crawler Request

Once the page is in the cache, we serve this cached content (cache hit) to the bots.

This accelerates page response times by up to 90%, and guarantees search engines index an accurate snapshot of your page.

This is done to avoid ‘missing content’ in crawls due to half- or no-crawl.

2. First-Time Crawler Request

When a crawler requests your pages for the first time, we quickly spin up a headless browser, load the requested URLs, execute all JS files, and render the JS dynamic content into static HTML.

This pre-rendered version is then served to the crawler and cached for future requests.

The entire process happens within milliseconds.

4. Content Requests on Updated

When you change content, we need to recache it to serve the updated information in the subsequent requests.

You can set up your recaching frequency to best support your business’s needs. The cache expiration options range from 6 hours to 30 days depending on your plan.