I have experience teaching React.js and have worked with PHP and Laravel in the past. I came across a statement on this forum that suggests SPA does not contribute to SEO progress.
 
However, I am faced with a predicament. Should I develop a large web application using the SPA approach or stick to traditional methods such as PHP + framework (or pure PHP)? As search engine optimization is crucial to me, if there is no way to improve SEO for SPA applications, I may have to abandon the idea of a one-page application.

As someone without much experience in this area, I would appreciate an objective opinion from those who are knowledgeable.

To address the SEO challenge, developers employ an SSR approach wherein the server renders the application and sends the pre-made HTML to the client for crawling by Google's bots. To achieve this, there exist frameworks like Next.js as well as others that enable SPA SEO optimization to be on par with PHP web applications.

In recent years, SEO has become increasingly important for online businesses looking to attract organic traffic and improve their ranking on search engines. The use of SSR has been an effective solution for addressing issues related to SEO, as it enables pre-rendering of websites to aid in indexing by search engines. Additionally, frameworks like Next.js have made it easier for developers to implement SSR, offering better search rankings for SPAs compared to traditional web applications built in PHP and other languages.

To be honest, I am not well-versed in the topic of SPA, but in SEO, I successfully boosted complicated topics such as apartments into the top 10. Despite the fact that validity is not always a crucial factor in SEO and may not affect the results at all, it appeared to have hooked users. Additionally, while it's important for sites to be indexed, ranking is equally vital.

A little-known fact is that search engines tend to take into account text hidden in spoilers less frequently.

In order to ensure proper indexing by search engines, it is necessary to render the page on the server and provide the HTML copy to the search robots. While this approach may result in a loss of behavioral and reference factors, it remains the only way to effectively work with Yandex. However, Google's virtual browser allows for seamless interaction with such websites, eliminating the need for this workaround.

In both cases, ensuring quality content on the pages remains crucial for effective indexing.

Traditional methods like PHP + framework or pure PHP are generally more SEO-friendly and easier to optimize because they render content on the server-side, which search engines can easily crawl and index. However, with the right approach, SPA applications can still be made search engine friendly.

To improve SEO for SPA applications, you can consider implementing techniques such as:

1. Server-side Rendering (SSR): By rendering the initial content on the server and sending it to the client, you provide search engines with easily accessible content.

2. Prerendering: Pre-generate HTML snapshots of your SPA and serve them to search engines when they request the page. This can be done using tools or services specifically designed for prerendering.

3. Implementing proper metadata: Ensure that important metadata, such as title tags, meta descriptions, and canonical links, are correctly implemented in your SPA. This will help search engines understand and index your content better.

4. Utilizing JavaScript frameworks for SEO: Frameworks like React.js provide solutions like Next.js and Gatsby.js, which offer server-side rendering capabilities out of the box. These frameworks can help bridge the gap between SPAs and SEO.

5. Progressive Web Apps (PWAs): PWAs combine the best of both worlds by providing an app-like experience while still being accessible and indexable by search engines. They can be optimized for SEO and offer features like offline support, push notifications, and home screen installation.

6. Content loading optimization: SPA applications often load content dynamically using JavaScript. Ensuring that your application loads content efficiently and progressively can help improve user experience and SEO. Lazy loading techniques and optimizing code for faster load times are beneficial in this regard.

7. Sitemaps and structured data: Generate and submit a sitemap to search engines to ensure all pages of your SPA are discovered and properly indexed. Additionally, consider using structured data markup to provide search engines with more information about your content.

8. Quality content and backlinks: Regardless of the approach you choose, high-quality, relevant content is crucial for SEO. Additionally, attracting backlinks from reputable websites can help improve your search engine rankings.

9. URL structure: Design your SPA application with search engine-friendly URLs. Ensure that your routes and URLs are descriptive, contain relevant keywords, and can be easily understood by both users and search engines.

10. Link building strategies: Implement link-building strategies to improve the visibility and authority of your SPA application. This can involve reaching out to relevant websites for backlinks, guest posting on reputable blogs, or participating in industry forums and communities.

11. Social media integration: Leverage social media platforms to drive organic traffic and increase the visibility of your SPA application. Social media shares and engagement can indirectly impact SEO by increasing brand awareness and attracting more visitors to your site.

12. Mobile optimization: With mobile devices accounting for a significant portion of web traffic, it is essential to ensure that your SPA application is optimized for mobile devices. This includes responsive design, fast load times, and a mobile-friendly user interface.

13. Monitor performance and analytics: Regularly monitor the performance of your SPA application using tools like Google Analytics. Pay attention to metrics such as page load times, bounce rates, and organic search traffic to identify areas for improvement and measure the effectiveness of your SEO efforts.

14. Continuous optimization: SEO is an ongoing process, and it's important to continuously optimize your SPA application for better search engine visibility. Stay updated with SEO best practices, algorithm changes, and industry trends to adapt your strategies accordingly.

15. Avoid excessive JavaScript: While SPAs heavily rely on JavaScript, excessive use can negatively impact SEO. Search engine crawlers may have difficulty parsing and indexing pages that rely too heavily on JavaScript. Aim to strike a balance between interactivity and ensuring that the essential content is available without relying on JavaScript.

16. Use proper heading structure: Utilize HTML headings (h1, h2, etc.) appropriately in your SPA application. Well-structured headings help search engines understand the hierarchy and organization of your content.

17. Optimize images: Optimize images used in your SPA application for faster load times. Compress images without sacrificing quality and provide alt text to improve accessibility and provide context to search engines.

18. Local SEO considerations: If your SPA application has a location-based component, consider implementing local SEO strategies such as optimizing for local keywords, creating Google My Business listings, and including relevant location information on your website.

19. Keep up with SEO best practices: Stay informed about the latest SEO best practices, algorithm updates, and industry trends. SEO is an ever-evolving field, and staying up-to-date ensures that you can adapt your strategies accordingly.

20. User experience: Prioritize user experience in your SPA development. While not a direct SEO factor, positive user experiences can lead to increased engagement, lower bounce rates, and higher conversion rates - all of which indirectly impact SEO.

21. Speed optimization: Ensure that your SPA application loads quickly to provide a better user experience and improve SEO. Minify and compress your JavaScript, CSS, and HTML files, leverage browser caching, and use CDNs (Content Delivery Networks) to serve static assets.

22. Structured data: Implement structured data markup on your SPA application to provide search engines with additional information about your content. This can help enhance search engine results by enabling rich snippets, knowledge graph panels, and other enhanced search features.

23. Content quality and relevance: Focus on creating high-quality, relevant content for your SPA application. This includes well-written, informative text, engaging visuals, and any other media that adds value to the user. Content that is useful and relevant to your target audience is more likely to attract organic traffic and improve SEO.

24. Mobile-first indexing: With Google's emphasis on mobile-first indexing, it's crucial to ensure that your SPA application is mobile-friendly. Optimize your design, layout, and functionality for mobile devices to improve both user experience and SEO performance.

25. Ongoing SEO monitoring and adjustments: Once you launch your SPA application, continuously monitor its performance and make adjustments as needed. Regularly review your analytics, track keyword rankings, and stay updated on any changes in search engine algorithms to maintain and improve your SEO efforts.

26. Quality link-building: Earn high-quality backlinks from authoritative websites to improve your SPA application's SEO. Focus on building relationships with industry influencers, guest posting on reputable websites, and leveraging your existing network to gain valuable backlinks.

27. User engagement signals: Search engines consider user engagement signals like click-through rates, time spent on page, and bounce rates as indicators of content quality and relevance. Encourage user engagement through compelling and interactive elements within your SPA application.

28. Social sharing and promotion: Actively promote your SPA application through social media channels to increase its visibility and attract more organic traffic. Encourage social sharing of your content to reach a wider audience and potentially generate backlinks.

29. Monitor and fix technical SEO issues: Regularly conduct technical SEO audits to identify any issues that may be affecting your SPA application's search engine performance. Fixing technical issues, such as broken links, duplicate content, and crawlability problems, can help optimize your site for better SEO.

30. Stay up to date with industry trends: SEO is an ever-evolving field, and staying informed about the latest trends, updates, and strategies is essential. Follow reputable sources, participate in relevant forums and communities, and engage with SEO professionals to stay ahead of the curve.

Single-page Single-page Page Applications (SPA) are generally known as non-friendly SEO websites because they are hard to crawl and bit difficult to render content by GoogleBot