The ProdFix Blog

Long lists destroy performance. React virtualization fixes it. Here's the production-safe implementation.

Images are the biggest LCP opportunity. Here's the complete 2025 optimization guide.

Tree shaking removes unused code. Here's how to ensure it works correctly in your production build.

HTTP/3 promises better performance. Here's the real-world impact for SaaS and how to enable it.

Edge computing reduces latency for global users. Here's an honest assessment of when it's worth it.

CSS can slow your pages in ways you don't expect. Here's what to watch for in production.

SaaS dashboards with lots of data get slow. Here's the optimization strategies that work.

Mobile performance differs significantly from desktop. Here's how to monitor and optimize for real mobile users.

Cold starts in serverless functions cause latency spikes. Here's how to minimize them.

N+1 queries destroy performance at scale. Here's how to detect them in production before they cause problems.

Memoization can improve or degrade performance depending on usage. Here's the production-correct patterns.

Brotli beats Gzip for text compression. Here's the real-world impact and how to enable it.

Web fonts are a major source of CLS and LCP issues. Here's the 2025 best practices.

Janky scrolling drives users away. These are the fixes that make SaaS apps feel smooth.

The data on how page speed affects SaaS conversion rates, retention, and SEO.

Lazy loading improves LCP but can cause layout shifts if implemented incorrectly. Here's the right way.

Profiling production JavaScript performance without slowing down your users. The techniques that work.

Offset pagination gets slow with large datasets. Cursor pagination fixes this. Here's the comparison.

Redis caching can eliminate slow queries. Here's the strategy for what to cache in SaaS products.

Connection reuse reduces latency for repeat visitors. Here's how to configure it correctly.

Basic auth is the starting point. Here's the hardening steps that protect real production systems.

API keys need secure generation, storage, and rotation. Here's the complete implementation guide.

DDoS protection doesn't require enterprise spending. Here's the affordable setup for solo founders.

Clickjacking tricks users into clicking on invisible elements. Here's how to prevent it with security headers.