(Tag)

Performance

Speed of sites and apps: Core Web Vitals, caching, databases and optimising for load.

September 18, 20264 min read

Website images: formats, sizes and lazy loading

Why images slow sites down, which format to choose, how to serve the right size with srcset, when to lazy-load and how to automate processing.

Frontend
Performance

July 29, 20265 min read

Go for the backend: when it is worth it and when it is overkill

Go excels at high-load APIs, real-time features and data processing, but is often overkill for admin-heavy CRUD products. We compare it with PHP, Python and Node.js.

Backend
Performance

June 10, 20265 min read

Core Web Vitals: how to speed up your site and what affects the score

LCP, INP and CLS: what Google's metrics measure, which values count as good, where to find real data and what to fix first.

SEO
Performance

June 3, 20265 min read

Caching in web applications: where to cache and how to invalidate

Caches live in the browser, on a CDN, in the application and in the database. We cover Cache-Control headers, invalidation strategies, stampede protection and common mistakes.

Backend
Performance

May 29, 20265 min read

Redis in a web project: what it is for and when you do not need it

Redis speeds up caching, sessions, queues and rate limits, but it does not replace your database. We cover use cases, memory settings and when you do not need it.

Databases
Performance

A server rack with blinking green lights

May 8, 20265 min read

PostgreSQL indexes: how to find and speed up slow queries

How to find slow queries with pg_stat_statements, read an EXPLAIN ANALYZE plan and choose the right index — with examples and a table of index types.

Databases
Performance