I wasted an entire afternoon wondering why Google Search Console kept showing zero rich results for my React app. The breadcrumbs looked perfect in the browser. Users could see them. But Google? Completely blind. The problem wasn't my breadcrumb component it was that I'd never told Google what those breadcrumbs actually were. Structured data. Four lines of JSON-LD. That was it. Here's everything I learned, so you don't lose the same afternoon.
Why React Breadcrumbs Are Invisible to Google
React apps render in the browser. Google's crawler is getting better at parsing JavaScript, but structured data embedded in client-rendered markup is still unreliable for rich results. The gold standard for breadcrumb rich results in Google Search is JSON-LD schema markup injected into <head> not your visible DOM breadcrumb trail.
The two things are completely separate:
Your breadcrumb UI component what users see
