CheckFast journal

Performance

Long-form, production-minded writing on performance, deliverability, security, SEO and monitoring — connected to tools you can use immediately.

Performance

The Core Web Vitals 2026 Guide: How to Hit Green on LCP, INP, and CLS

A pragmatic, framework-aware guide to passing Core Web Vitals in 2026. Real thresholds, real bottlenecks, and tactics that move LCP, INP, and CLS into the green.

12 min readApr 22, 2026