Architecture • 5 min read • October 08, 2026
Technical SEO in 2026: Diagnosing JavaScript SPAs, Redirect Chains & Canonicals
Client-side frameworks (Next.js, Nuxt, React) introduce subtle crawling pitfalls that basic HTTP spiders fail to notice.
The Danger of DOM Mutation
When JavaScript updates document title or canonical tags after the initial HTML render, simple crawlers report missing tags even when Googlebot eventually sees them.
Headless Chromium Verification
CheapCrawler executes client-side hydration before analyzing the DOM, guaranteeing that what you inspect matches real Googlebot Web Rendering Service (WRS) behavior.