Web development interviews in 2025 are no joke. With the rapid evolution of technologies, frameworks, and best practices, recruiters are raising th...
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Hi!
As someone who has been working with Next.js for several years, I have to say you shared some really valuable points in this article, especially the explanation of the differences between SSG, SSR, and CSR. This part does a great job of highlighting the importance of each strategy and helps developers make better decisions for their projects.
One thing that comes to mind is that in larger projects where we need a combination of these strategies, such as using SSG for static pages and SSR for dynamic ones, managing the complexity and optimizing performance has always been a challenge. You made great points about these strategies in the article, but I am curious about how we can optimize this combination in real-world projects. For example, in scenarios where there are a high number of dynamic requests, like a news site or a large e-commerce platform, what would you suggest to maintain performance and scalability?
Thank you for the insightful article. I look forward to discussing this further! 🙏
Thanks so much for your kind words Mahdi, and even more for the fantastic question! 🚀 You’re absolutely right: hybrid approaches (SSG + SSR) are where things get spicy in real-world projects. Here’s how I’d tackle optimization in high-dynamic scenarios like news/e-commerce sites:
Incremental Static Regeneration (ISR): Next.js’s secret weapon. Pre-render static pages but revalidate them in the background when data changes (e.g.,
revalidate: 60for a news site). Best of both worlds: speed + freshness.Edge Caching: Pair ISR with a CDN (Vercel’s edge network, Cloudflare, etc.) to serve stale-while-revalidate pages globally. Reduces origin server load for dynamic routes.
Smart Client-Side Fetching: For super-dynamic content (e.g., live pricing), use SSR for the shell + client-side
fetch/SWR after load. Libraries like@tanstack/queryhelp manage deduplication and caching.Route Segmentation: Group high-traffic dynamic routes (e.g.,
/news/[slug]) and give them dedicated SSR infrastructure, while low-churn pages (e.g.,/about) stay SSG.Database Optimizations: Often the bottleneck! Use read replicas, GraphQL/data loaders to batch requests, or edge-compatible DBs (like PlanetScale) for geo-distributed queries.
Would love to hear how you’ve handled this in your projects! 🙌
Yes, I have faced these challenges in the projects I’ve worked on as well, and I usually opt for a hybrid approach using both SSG and SSR. This allows me to benefit from the speed of static pages while efficiently handling dynamic content.
I also believe that, during the deployment phase, optimization strategies should be applied on a per-page basis. In other words, for each page, the most suitable rendering method (SSG, SSR, or even ISR) should be selected depending on its level of dynamism and traffic. This ensures an excellent user experience while making optimal use of system resources.
Absolutely love this approach! 🎯 Per-page optimization is such a game-changer, it’s like giving each page a custom-tailored suit instead of forcing it into a one-size-fits-all solution.
A few follow-up thoughts based on your insight:
Dynamic Route Prioritization: For high-traffic dynamic routes (e.g., product pages), I’ve found that combining ISR with
on-demand revalidation(e.g.,res.revalidate()in Next.js) works wonders when content changes unpredictably.Traffic-Aware Fallbacks: For SSG pages with sporadic updates, do you use
fallback: "blocking"to avoid 404s during rebuilds, or do you preferfallback: true+ skeleton loaders for a smoother UX?Monitoring: Tools like Vercel Analytics or custom RUM (Real User Monitoring) help fine-tune thresholds (e.g.,
revalidatetime) based on actual usage patterns.Would you tweak any of these strategies for edge cases? Always learning from fellow devs who’ve been in the trenches!
This was a very valuable and well-crafted article. The way the questions were categorized, the comprehensive explanations, and the emphasis on the importance of each topic made this far more than just a simple interview question list. For any web developer preparing professionally for job interviews, reading this article can be truly helpful.
Thank you for sharing such high-quality content.🙏
Thank you so much for this incredibly kind feedback Hassan! 🙏 Comments like yours make all the research and writing worth it. I’m thrilled to hear it’s helpful for developers prepping for interviews.
You nailed exactly what I was aiming for: not just a checklist, but a deep dive into the "why" behind each concept. If there’s ever a topic you’d love to see expanded (or a question you wish was included), just say the word, I’m all ears!
Keep crushing those interviews, and thanks again for the support. 🙏
🔥 This is hands down one of the most comprehensive and practical interview prep guides I’ve seen in a long time! Love how each question goes beyond just “what” and dives into the “why”, super helpful for actually understanding the concepts instead of just memorizing them. The structure, the emojis, the explanations… all on point. 🙌
A must-read for any dev looking to stay sharp in 2025! 👏
Thank you so much for your feedback 🙏🏻 I'm so glad you liked it 💙
Thanks for sharing this awesome article
You're welcome 🙏🏻🙏🏻🙏🏻
thanks for sharing
You're welcome Pouyan 🙏🏻🙏🏻🙏🏻