Tag: #rum
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3 posts
Frontend Monitoring & Error Tracking 2025 — Sentry, Datadog RUM, PostHog, LogRocket, Session Replay, Source Maps, AI Anomaly Detection (S6 E8)
The moment you deploy, every user screen becomes a black box. 2025 Sentry vs Datadog RUM vs PostHog vs LogRocket vs Bugsnag, source-map hygiene, the ethics of session replay, Core Web Vitals integration, AI-powered anoma
2026-04-15 · 7 min read #monitoring#error-tracking#sentry#datadog#posthogThe Science of Modern Web Performance — A Deep Dive into Core Web Vitals, INP, LCP, CLS, RUM, Lighthouse, Critical Rendering Path, and Speculation Rules (2025)
Why is my site slow? In 2024, INP officially replaced FID, reshaping the three Core Web Vitals, while the Speculation Rules API, Partial Hydration, HTTP/3, and Early Hints all matured simultaneously. This post traces why
2026-04-15 · 21 min read #web-performance#core-web-vitals#inp#lcp#clsPerformance & Core Web Vitals 2025 — LCP, CLS, INP, RUM, Image/Font/JS Optimization, Edge, CDN, HTTP/3 (S6 E6)
Performance is not a feature — it is the precondition for every feature. The full 2025 Core Web Vitals map: LCP, CLS, INP (FID successor), RUM vs synthetic, critical rendering path, JS bundle diet, image/font optimizatio
2026-04-15 · 7 min read #performance#core-web-vitals#lcp#cls#inp