Your Developer Picked a Framework. Your Rankings Paid the Price.
Not all JavaScript frameworks are created equal for SEO.
Some make it easy. Some make it a nightmare. And your developer probably picked based on what they liked coding in, not what Google could crawl.
The Tier List
Tier 1: SEO-friendly by default. Next.js (React), Nuxt (Vue), SvelteKit, Astro. These support server-side rendering and static generation out of the box. Use them.
Tier 2: SEO-possible with effort. Vanilla React (with SSR configured), Angular Universal, Gatsby. Can work, but requires intentional setup. Miss a step and your content is invisible. We cover the symptoms in our JavaScript rendering issues post.
Tier 3: SEO nightmare. Pure client-side SPAs with no server rendering. Create React App without SSR. Vue CLI default setup. Angular without Universal. Google might render them. Eventually. Maybe.
The Hard Truth
If you are running a pure client-side SPA in 2026 and wondering why your organic traffic is flat...
points at framework
That is why.
Google has gotten better at rendering JavaScript. But "better" does not mean "perfect." And the rendering queue means there is always a delay between crawling and indexing.
What to Do
If you are starting a new project: pick a Tier 1 framework. Problem solved.
If you are stuck with a Tier 3 setup: migrate to SSR, add dynamic rendering as a stopgap, or use a pre-rendering service. Google's SEO documentation covers how Googlebot handles JavaScript rendering.
Track your JavaScript SEO health with our 113-task checklist. Free. No credit card. 30 seconds to set up. Built from 20+ years of experience.