
JavaScript SEO: What Still Breaks Crawling and Rendering in 2026
An updated, specific list of what actually still causes JS-rendered content to be missed or delayed in indexing, cutting through outdated claims that Google can't render JavaScript.

An updated, specific list of what actually still causes JS-rendered content to be missed or delayed in indexing, cutting through outdated claims that Google can't render JavaScript.

Not another exhaustive 100-item checklist — a prioritized 20-item list ordered by how often each issue is both common and high-impact.

What sitemaps actually do — and don't do — for indexing today, common mistakes like stale lastmod dates, and when a site is too small to need one.

Updated Core Web Vitals benchmarks for INP, LCP, and CLS, with the specific fixes that move the needle — and which 2021-era advice no longer applies.

A framework for diagnosing and fixing crawl waste on large sites — log file analysis, faceted navigation traps, and robots directives that actually work.