Is my v0 site SEO friendly?

The short answer

Usually yes, for the technical part. v0 defaults to Next.js, can use React Server Components “for improved performance and SEO”, and deploys to Vercel (v0 docs, “Full-stack apps”, read 15 Oct 2026). New chats start with Next.js, Tailwind CSS and shadcn/ui. So unlike a single-page React app, a v0 site normally sends its text as HTML.

Normally isn’t always. Four things undo it on v0 projects, and none of them shows up when you look at the site in your browser.

Four traps on v0 sites

Two Vercel defaults work in your favor. Deployments from non-production branches carry X-Robots-Tag: noindex (Vercel KB, “Are Vercel preview deployments indexed?”, read 15 Oct 2026), and the AI bots managed ruleset is inactive unless you turn it on (Vercel docs, “Bot Management”, read 15 Oct 2026).

Test it in one minute

An example; replace both addresses with yours:

URL=https://yourdomain.com
curl -s $URL/ | sed 's/<[^>]*>/ /g' | wc -w
curl -s -A 'Mozilla/5.0 (compatible; GPTBot/1.2)' $URL/pricing \
  | grep -o '<title>[^<]*</title>'
curl -s -o /dev/null -w '%{http_code}\n' \
  -A 'Mozilla/5.0 (compatible; OAI-SearchBot/1.0)' $URL/
curl -sI https://your-project.vercel.app/ | grep -iE '^(http|location|x-robots-tag)'

What good looks like: hundreds of words, the pricing page’s own title, 200 for OAI-SearchBot, and a vercel.app address that returns a 308 to your domain (or pages whose canonical names your domain). Next.js streams metadata on dynamic pages and turns that off only for bots it recognizes by user agent; if the title is missing for GPTBot, look at the htmlLimitedBots option in the same Next.js docs.

Fixes in v0

1. Move page text to server components. Paste this into v0’s chat, as an example:

On every public page (/, /pricing, /faq and the pages in the footer),
render headings, paragraphs and FAQ answers in server components. Keep
"use client" only for interactive parts. Give each route its own metadata
export or generateMetadata. Accept when: curl of each page shows its own
<title> and its H1 and first paragraph without JavaScript.

2. Add app/sitemap.ts and app/robots.ts. Next.js generates both files from code, so the sitemap lists your routes on your custom domain.
3. Pick one address. Add your domain from Publish → Customize Domain or Project menu → Settings → Domains; DNS and redirects are handled in the Vercel dashboard (v0 docs, “Custom domain”, read 15 Oct 2026). Then redirect the production vercel.app host with a 308, or add canonicals, as Vercel’s duplicate-content guide describes. Don’t point every canonical at the home page.
4. Check production visibility under Project menu → Settings → Vercel Project. Public pages need to be public.
5. Publish through GitHub. Connecting GitHub makes v0 create a private repository; each chat works on its own branch with a preview deployment, and Publish merges a pull request (v0 docs, “GitHub”, read 15 Oct 2026).

What Next.js can’t write for you

Rendering gets you read; it doesn’t get you named. Assistants quote pages whose first two sentences answer a buyer’s question, on sites whose facts match everywhere. Write one page per buyer situation and ask those questions every 14 days to see who gets named: why ChatGPT doesn’t recommend your brand and how to check.

What Katman does on a v0 project

Open the GitHub repo in Cursor, Claude Code or another MCP client. katman_scan_code reports the v0 signature, the Next.js version, which routes render on the server and which only in the browser, and where head tags come from; katman_audit_site reads the live pages as AI crawlers do and can check your preview and vercel.app addresses; katman_generate writes robots.txt, llms.txt and JSON-LD from your research file. Katman doesn’t edit the code: v0 or your coding tool does, and Katman checks the result. It can’t change Vercel settings for you, and nobody can promise an assistant will recommend you. Katman Pro is $99 a month for up to 3 sites, with fix prompts and page briefs uncapped. Or have us do it: Growth writes 30 pages a month for you. How Katman works.

Written by the Katman team, Rnify Limited. v0, Vercel and Next.js pages read 15 October 2026.