Digital Lexicon Hub

The practice of making sure content, links and metadata generated by JavaScript can be crawled, rendered and indexed by search engines.

Modern sites built with React, Vue or Angular can look complete to users while crawlers see little content, so rendering choices made by developers decide whether product and service pages can earn organic traffic at all.

A SaaS site built as a single-page app shows an empty shell in Search Console's URL Inspection tool. The team moves marketing pages to server-side rendering, replaces fragment URLs with History API routes and real links, and sets titles in the initial HTML.

Google can render JavaScript, but rendering may be delayed and other crawlers and AI bots often do not run scripts at all. Content behind clicks, blocked script files or noindex tags added by JavaScript can still be missed.

Google processes pages in three phases: crawling, rendering and indexing. Googlebot fetches the HTML, checks robots.txt and queues URLs that return 200 for rendering in a headless Chromium, then indexes the rendered HTML. Good practice includes crawlable links, meaningful HTTP status codes, one consistent canonical, and Server-Side Rendering (SSR) or static rendering for key content, which supports Crawlability and Indexability.