Daniil Novikov

Working on multitenant SaaS projects taught me one clear rule. Data isolation is not optional. It’s the backbone of security, trust, and scalability.

A few approaches

schema-per-tenant – each tenant gets its own schema. Great isolation, easy backups, more maintenance.

row-level...

After reviewing many Next.js codebases, I keep seeing the same performance killers.

Most of the time it’s not the framework. It’s small choices that add up.

Common mistakes too

many client components instead of server components

large images without proper sizing or lazy loading

One thing I’ve learned the hard way. Bounce rate is often not a content problem. It’s a loading problem.

In many Next.js projects I’ve worked on, the biggest performance issues came from images, not code. Large hero visuals, unoptimized galleries and mobile devices don’t mix well.

I keep noticing the same pattern across projects. When image optimization in Next.js is set up properly, bounce rate almost always goes down.

Next.js Image helps a lot. You get automatic resizing, WebP where needed, lazy loading and responsive images without a custom pipeline....