Working notes on web performance, SEO, paid ads, and growth strategy. Short essays from real client audits — no fluff, no buzzwords.https://alexeykachan.com/en-ushttps://alexeykachan.com/blog/core-web-vitals-2026/https://alexeykachan.com/blog/core-web-vitals-2026/INP replaced FID and changed everything. Here is what to optimize first if you have one engineering day, written from 60+ live audits.Sun, 12 Apr 2026 00:00:00 GMTperformanceseoweb-vitalsAlexey Kachan