What Vercel is
Vercel hosts frontend applications and serverless functions, with first-class support for Next.js, which it maintains. Deployments are served from Vercel's own edge network, so the platform acts as both the application host and the delivery layer.
How DNSTrace.dev detects it
Detection correlates independent public signals. A single match is reported as strong evidence; agreement between a response header and the announcing network is reported as confirmed.
x-vercel-id— Per-request identifier naming the regions that handled the request.x-vercel-cache— Cache outcome, such as HIT, MISS or STALE.CNAME targets under vercel-dns.com or vercel.app— The standard Vercel mapping.Apex A records pointing at Vercel's published anycast addresses— Used when a domain cannot use a CNAME at its apex.
What a detection proves
The application is deployed on Vercel and served from its edge.
What it does not prove
Which framework the application uses. DNSTrace.dev reports Next.js separately, from its own response headers, under the detected stack.
Common questions
Does Vercel always mean Next.js?
No. Vercel serves any supported framework or static output. Next.js is reported only when its own headers or markup appear.
Compare with
NetlifyNetlify, Inc.
Application platform
Fly.ioFly.io, Inc.
Static hosting
GitHub PagesGitHub, Inc., a Microsoft subsidiary
CDN, reverse proxy and WAF
CloudflareCloudflare, Inc.
Check a domain
Run a full lookup to see the delivery layer, the detected application stack, live TLS and the announcing network side by side.