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Can We Build A Fast and SEO-Friendly SPA with React JS?

Can We Build A Fast and SEO-Friendly SPA with React JS?
July 19, 2021 No Comments


No startup or enterprise can develop outwardly using effective SEO practices. SEO is all about raising a site’s rankings in the organic (non-paid) part of the search results.

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What makes the organic traffic to your website improve?

The solution is relatively easy: To grow your numbers, you need to create high-quality content on your website and require to do so frequently. That’s what we propose by the term SEO.

In this blog, however, I’m going to mark another advantage of understanding SEO. In addition to optimizing your site, SEO tools can also provide you an edge by helping you recognize your niche better. With SEO tools, you can figure out how customers are seeking the web for services like yours, how your competitors find their audience, viewers and produce a much stronger understanding of the ecosystem you’re operating in.

Mastering SEO involves more traffic, events, and advantage for your firm.
Did you know that 89% of marketers state search engine optimization (SEO) is successful? If you haven’t advanced in SEO, for your business, you’re missing out on all the benefits of SEO.

Importance of SEO

SEO helps you to reach people using search engines to find products or services

Google resembles a variety of different factors when deciding the ranking of websites that show up on their SERPs. They want to discover content that is relevant to the user’s query, but that can also be expected to provide value for the reader. When content ranks extremely on the SERP, it has a much greater chance of attracting clicks and concentration than the content ranked lower. People use search engines to discover unique products, obtain relevant services, locate companies, and uncover useful information. By optimizing your site for SEO, you help these people find your business in search results.

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SEO marks quality traffic

One of the most significant advantages of SEO is that it’s an Inbound marketing tact.

Out bounding marketing is marketer-centric, as an example, this could carry door-to-door sales or cold calling where a sales rep or marketer proposes someone without knowing if he or she is even a qualified lead. And also, many customers find them downright annoying.

On the other hand, inbound is much more Instead of interrupting customers, it includes designing helpful resources and presenting valuable information more efficiently accessible.

Then, when users are ready to spend some time researching your business or learning more about their advantages for a specific type of product, they can find you on their own.

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When you concentrate on attracting users who are actively studying for information associated with your industry, commodities, and services, you’ll be much more useful in reaching your target audience.

No Need to spend on advertisements in SEO

SEO is cost-effective. Competing enterprises can spend large amounts of money on paid website traffic. Of course, you can purchase announcement space, but if you’re struggling with a fixed budget, SEO is a great way to start qualified traffic to your site without paying directly.
Of course, researching and composing high-quality content needs an investment. That venture will either be in the form of time if you prefer to create it yourself or money if you choose to hire a digital marketing firm to perform it for you.
You might need to update the page every few months, depending on the variety of the subject. You also might need to add to and update it if your competitors choose to target the same keyword.
But when it comes down to it, your valuable spot in search results is free of charge.
This is a major difference from PPC ads, which involve a cost every time a user clicks and visits a page.

SEO is better than PPC

SEO gets more traffic than PPC, so if you manage to rank your website for the keywords you want, you will receive much more traffic than paying for those keywords.
The difference between SEO and PPC is that traffic appearing from SEO holds organic traffic, whereas traffic from PPC has a charge for each click.
Organic traffic means it is continuous as long as you are ranking in one of the top positions.
PPC ads can generate more clicks but this indicates that you need to pay more.

What is SPA and why you must use React?

A single-page application is an app that doesn’t require reloading the page during its use and works within a browser. Facebook, Google Maps, Gmail, Twitter, Google Drive, or even GitHub. All these are SPA.

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When the user holds the app with natural enjoinment and without having to wait for the page reloads and other things, it is one of the biggest benefits of a correctly configured SPA. You remain on the same page, which is powered by JavaScript programming language. ReactJS, Angular, EmberJS, and Backbonejs are open-source JavaScript-based frameworks which are widely used in creating SPA on the client side.
Now then why we should prefer to go forward with ReactJS?

React JS is supposed to be a bestseller framework nowadays. when it comes to design and develop a Single page application then every Developer and customer demands ReactJS because of efficiency, easy maintenance, and smoothness of the overall process of writing components.

What Challenges are correlated with SPA optimization for search engines

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Now let’s zoom in on several of those facts to see why they are an issue.

Search engines use web crawlers for determining the website ranking in search results. . A web crawler is a bot that frequently visits web pages and probes them according to particular criteria established by the search engine. Each search engine has its crawler, and Google’s crawler is called the Googlebot.

The Googlebot searches pages link by link, accumulates information on website freshness, content uniqueness, the number of backlinks, etc., downloads HTML and CSS files, and transfers all of this data to Google servers. Then it’s examined and indexed by the Caffeine system. This is a completely automated process, so it’s essential to assure that crawlers accurately understand the website content.

SEO deadfalls of client-side rendering

Because of the additional stage required for rendering, it takes long-drawn for SPA content to appear or refresh in search compared to static HTML pages. Googlebot always indexes the content generated immediately after a SPA page loads. The content that is assumed to render on-demand (as users scroll or take actions on the page) or after a long delay (content coming from external resources or animated text) doesn’t always get indexed because of the limited render budget.

CSR is propitious to the end-user experience, but it proposes several questions around ensuring consistent ranking and installation requirements inside search engine results. Most significant sites, and especially most E-Commerce have directed this by rendering the “indexable” content of a Web page on the server and then switching to CSR to manage the page once it’s loaded.

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SEO pitfalls of SPA URLs

When You go to see different views of your app to be indexed as standalone pages and rank in search, so you need Googlebot to find all of your URLs and navigate through your app architecture and here we face a problem because crawlers are sensitive to implement routing between different views of your web app.

SPAs rely on routers that keep their UI and content in sync with the changing URLs without refreshing the page. When it comes to SPA routing modes, you have two options: hash-based routing and History API routing. Crawlers always neglect hashed URLs as they show parts of the same page. They won’t index different app views as separate pages if you use hash-based routing, so the above displays hash-based routing, which is not SEO-friendly anymore.

Robots Meta -Tags

The header of your SPA relates to the static HTML part of your app. It contains by-default meta tags that don’t break and change when various page content is rendered. However, you want titles and descriptions that clarify to both users and bots what information they’ll find on each of your URLs.

Google recognizes your web page content; you would require unique and different page titles and information for each page. If you lose to do this, then Google takes the same description for all the pages


Google crawls web pages un-cached so those complicated first loads of single-page applications can be problematic. Speed can be determined in various ways, but in this case, we’re discussing the length of time it takes to execute and critically render all the devices on a JavaScript-heavy page compared to a less resource-intensive HTML page.

URL and routing

An automatic, descriptive URL and content architecture assists with SEO.

Out-of-the-box, simple single-page apps do away with browser <> server navigation. it is difficult to manage URLs.

Why ReactJS is a good choice to overcome above challenges.

Before moving forward, we need to understand that ReactJS is SEO Friendly and can support you to come out with all problems which SPA faces in optimization.

We have observed over the last few years, ReactJS become more mature, more stable, and enter mainstream adoption for the SPA.

React is using JavaScript to load its pages and load the content in most cases. Google and other search engines can read the content but it’s always required in these cases to check what the actual result is and its advantage is its capacity to subsume common search engine’s unfulfillment to understand JavaScript-heavy applications. For such, a way for it is React can run on the server, render and return the virtual DOM to the webpage like others.

There is some way, which helps SPA SEO optimization.

Server-Side Rendering

Server-side rendering is the effortless and easiest process to create an SEO-friendly React SPA However, if you require to create a SPA that will render on the server, it is necessary to add a layer of Next.js.

First, we need to comprehend the difference between client-side and server-side rendering.

Client-side rendering is the default render path for a React SPA. The server will serve as a shell app that doesn’t hold any content. Once the browser downloads, parses, and executes injected JavaScript sources, the HTML content is populated or rendered.

Server-Side Rendering determines that you run the JavaScript code on the server before you transfer the files to the user for the first time.

That means that the visitor can see the content immediately without having to wait for React to run first, it presents the page a little bit faster but more importantly, it indicates that Google doesn’t need to run JavaScript to read the content of the page.

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If we examine it from the SEO perspective, then client-rendering models have a few problems and server-side rendering is much better for SPA SEO.

Isomorphic React

Isomorphic is “corresponding or similar in form.”

In ReactJS it determines the server has a similar form to the client. you can reuse similar React components on the server and client.

This isomorphic procedure enables the server to render the React app and send the rendered version to our users and search engines so they can observe the content spontaneously while JavaScript loads and executes in the background.

Frameworks like NEXT.JS or GATSBY have simplified this approach. We should remark that isomorphic components can seem substantially different than conventional React components. For example, they can inject code that runs on the server rather than the client. They can also combine API secrets (although server code is stripped out before being sent to the client).

these frameworks abstract away a lot of complexity but also introduce an opinionated style of writing code.

Next.js rendering algorithm looks as when follow

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How GatsbyJS Works here

Optimization time react is divided in two steps

  1. Build Time
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  2. Run Time
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The approach of prerendering is to preload each HTML element on the page and cache all SPA pages on the server with the guidance of Headless Code. A conventional way to do this is using a prerendering service such as A prerendering service intercepts all inquiries to your website and, including the help of a user agent, defines whether a bot or a user is viewing the website.

If the viewer is a bot, it prepares the cached HTML version of the page. If it’s a user, the single-page app loads commonly.

Prerendering has a lighter server payload compared to server-side rendering.

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Some Pre-rendering services help to make your SPA SEO-friendly

  • Pre-rendering carries out all types of modern JavaScript and transforms it into static HTML.
  • Pre-renderers hold all the latest web innovations.
  • This program needs minimal codebase modifications or no changes at all.
  • It’s flexible to implement.

However, there are also some drawbacks to this program

  • if the website is large and contains a lot number of pages, Pre-rendering takes a too long time.
  • Pre-rendering services aren’t free, you need to pay for them.
  • Require to rebuild your pre-rendered page whenever you change its content.


Single Page Applications that are developed using React will have great page load time and will help in easier code management because of component-oriented rendering.

Search Engine Optimization of SPAs demands some extra effort for configuring the app. But with the efficient use of accurate tools as well as libraries, the web community and organizations are preferring to shift to SPAs for excellent load times.

I hope this blog assists you well and helps you to choose the right technology which makes your website fast, secure, and more SEO friendly.

Thank you!


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