Does Baidu Render JavaScript Websites?

As a web developer, you know the importance of having your website indexed by search engines such as Google and Bing. However, if you’re planning to target visitors from China, then it’s essential that you also look into the Chinese search engine Baidu.

At first glance, Baidu seems to operate just like Google, but there are some differences – not least of which is the fact that Baidu does not render JavaScript. So does this mean that if you have a JavaScript website, it won’t be visible to Baidu users? In this article we’ll take a closer look at Baidu and explore whether it can render JavaScript websites or not.

What Is JavaScript and How Is It Used?

If you’re curious about whether Baidu can render JavaScript websites, it’s important to start by understanding what JavaScript is and how it’s used. JavaScript is a scripting language most typically used on the web–it’s what allows websites to be interactive, engaging, and responsive. It also enables features like animated graphics, content sliders, and interactive forms.

Unlike HTML and CSS, which primarily structure webpages, JavaScript allows designers and developers to create dynamic experiences–it does things like allowing users to buy items directly from a website without ever needing to reload the page. It can even be used for more advanced tasks like manipulating data or building entire applications or mobile sites.

So when you’re wondering if sites made with JavaScript will work on Baidu, keep in mind that you’re asking if this popular search engine can analyze dynamic content. The answer may surprise you!

Why Baidu and JavaScript Don’t Always Mix

Are you trying to make sure that Baidu can find your website? If so, it’s important to understand how Baidu and JavaScript don’t always mix.

First, let’s look at why this is the case. The primary reason is that Baidu uses an older version of the web crawler known as “Baiduspider”. Unlike most modern engines, it’s not able to detect and read JavaScript code. Additionally, when scraping a website, it disregards the content of scripts entirely.

What this means is that pages built using modern JavaScript frameworks or libraries may not be indexed by Baidu at all. And if they are present in its index, they won’t be included in its search results as they weren’t properly rendered. This can lead to less exposure for your website and fewer opportunities to attract new customers.

So if you are trying to target audiences located in China, it’s important to make sure that your website is optimized for the way Baidu renders webpages—avoiding JavaScript where possible and taking other measures such as server-side rendering instead.

What Can Be Done to Improve Baidu’s JavaScript Rendering?

But what if you’re trying to make sure that Baidu can read your JavaScript? What can you do?

The good news is that there are some things you can do to make sure that Baidu can read your JavaScript-based website or web app. Here are a few tips:

  1. Use server-side rendering (SSR): this means that your app will render the content on the server before sending it to Baidu.
  2. Make sure any AJAX URLs are crawlable: make sure that any URLs you are using for AJAX requests are crawlable by Baidu.
  3. Don’t use too much JavaScript: make sure your website is not too “heavy” on JavaScript, and instead keeps the amount of code needed to a minimum.
  4. Use canonical tags: use canonical tags if possible, so Baidu knows which version of the page should be crawled and indexed.
  5. Pay attention to your page loading performance: making sure your page loads quickly will help give Baidu a better impression of how optimized your website is for their crawlers.

By following these tips, you’ll be able to ensure that Baidu can render and index your JavaScript-based website or web app properly, making it more likely to get higher rankings in their search engine results pages (SERPs).

Considerations for Optimizing JS for Baidu

You may be wondering if Baidu can render JavaScript websites, and the answer is a bit more complicated than a simple yes or no. Here’s what you need to know.


It’s important to note that Baidu has known limitations when it comes to rendering JavaScript websites. Some of these include:

  • It cannot process complex JavaScript codes, including those with many external requests and resource references, meaning the render results won’t be optimal
  • Baidu does not support certain browser features, such as AJAX, so some content can be missed
  • It supports up to two levels of iframes and one level of submit forms, so any website with deeper layers won’t be fully indexed

Optimizing JS for Baidu

Given these considerations, there are steps you can take to optimize your website if it is mainly JS based. These include:

  • Ensuring that all text content is visible without JavaScript enabled
  • Checking for HTML code errors and making sure that the HTML source code is clean
  • Avoiding excessive redirects
  • Ensuring that all important page elements are visible before the page loads fully
  • Minifying the JavaScript resources on your web page
  • Writing your own custom code instead of relying on third party libraries

By taking these precautions into account, you should have no problem ensuring that Baidu can render your website properly.

The Benefits of Optimizing Baidu for JavaScript Websites

You may be wondering why you should optimize your website for Baidu if it can render JavaScript websites. The answer is simple: optimization will help your website rank higher in Baidu’s search engine results and gain more visibility.

Optimizing a website for Baidu can also improve its speed and performance across different devices, making it easier for users to access the content. There are several ways to do this, such as optimizing images and leveraging caching strategies. Plus, combining technologies like HTML, CSS and JavaScript helps to create a more engaging user experience that encourages users to stay on the page longer—which is essential for SEO success.

In addition, optimizing for Baidu can make sure that your code is up-to-date and compliant with current web standards—helping to ensure compatibility with all browsers as well as mobile platforms. This means you can reach more people and maximize the impact of your content on a global scale.

Overall, optimizing a website for Baidu is key if you want to maximize the potential of your website in terms of visibility, speed and performance across different devices.

Alternatives to Rendering JavaScript With Baidu

So now you know that yes, Baidu does have limited support for JavaScript when it comes to crawling and rendering. But there are alternative solutions if you want to render JS websites with Baidu.

One option is to use a proxy service, such as Dynamic Render from Gingko Data, or Prerender from Google Cloud Platform. These services act as agents that can take the HTML and JavaScript content from your page and send it over to Baidu in a format that they can understand, allowing them to properly render the page.

Another option is to use the AJAX Crawling Scheme developed by Google. This approach works by using specially formatted URL parameters which tell Baidu how to interpret your content so it can be crawled and indexed properly.

Finally, you can always use server-side rendering with Node.js or similar technologies to pre-render the page before sending it out to Baidu. This approach has the added benefit of being able to track user interactions in real time, which can be useful for analytics purposes too.

Ultimately it all comes down to what makes sense for your project, so decide which rendering solution works best for you based on your requirements and available resources!


In conclusion, the answer to the question “Does Baidu render JavaScript websites?” is a resounding “Yes!”. Baidu can indeed render JavaScript websites, and the process is relatively straightforward. All you need to do is ensure that your website is properly optimized for Baidu’s unique process, and you should be able to get your website indexed and ranked in no time. However, it is important to keep in mind that optimizing for Baidu takes a bit more time and effort than other search engines, as its algorithms and rendering process are unique. By understanding the technical aspects of indexing and ranking your website in Baidu, you’ll be able to take advantage of the huge online market in China.