Know where any website really lives.

Audit your own stack, vet a vendor, or understand a competitor's infrastructure. CloudTracer scans a domain and prints registrar, DNS, CDN, hosting, SSL, email, and third-party services as a single tree.

npx cloudtracer example.com

View on GitHub → npm package

$ cloudtracer cloudtracer.dev

  🌐 cloudtracer.dev

  ├── Registration
  │   Registrar  : Porkbun LLC (RDAP)
  │   Registered : Apr 20, 2026
  │   Expires    : Apr 20, 2027
  ├── DNS
  │   Nameservers  : maceio.ns.porkbun.com, curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, salvador.ns.porkbun.com
  ├── CDN
  │   Fastly (Header: x-served-by: cache-sjc1000095-SJC; Header: x-fastly-request-id: 1f2c10441eb35c0440b9b87e9326d584ac80a36f)
  ├── Hosting
  │   Provider : Fastly
  │   ASN      : 54113 (FASTLY - Fastly, Inc., US)
  │   IPv4     : 185.199.110.153, 185.199.111.153, 185.199.108.153, 185.199.109.153
  │   IPv6     : 2606:50c0:8000::153, 2606:50c0:8001::153, 2606:50c0:8003::153, 2606:50c0:8002::153
  ├── SSL/TLS
  │   Issuer   : Let's Encrypt
  │   Protocol : TLSv1.3
  │   Expires  : Jul 19, 2026 (89 days remaining)
  │   SANs     : cloudtracer.dev, www.cloudtracer.dev
  ├── Performance
  │   DNS      : 14ms
  │   TLS      : 41ms
  │   TTFB     : 64ms
  │   Response : 68ms
  │   Size     : 3.2 KB
  └── Third-Party Services
      Fonts : Google Fonts

Eight scanners, one tree

Each scan runs every layer in parallel. The tree above is what comes back — here's what each row tells you.

Who runs the domain

Registration: Registrar, registration date, and expiration via RDAP with a WHOIS fallback.
DNS: Authoritative nameservers and the provider behind them — Cloudflare, Route 53, NS1, and others.

How it's served

CDN: CDN and WAF detection from response headers — Cloudflare, Fastly, CloudFront, Akamai, and more.
Hosting: IPv4/IPv6, ASN, and the hosting platform — including Vercel, Netlify, Fly.io, and GitHub Pages.
SSL / TLS: Issuer, protocol version, SANs, and days-until-expiry with traffic-light coloring.
Performance: DNS resolution, TLS handshake, TTFB, total response time, and content size.

What's bolted on

Email: MX provider, SPF and DMARC presence — a quick read on deliverability posture.
Third-Party Services: Analytics, marketing, and monitoring tools embedded in the page, scraped from the rendered HTML.

Usage

Quick start

$ npx cloudtracer example.com

Install globally

$ npm install -g cloudtracer
$ cloudtracer example.com

Options

Flag	Description
`--json`	Output as JSON
`--yaml`	Output as YAML
`--markdown`	Output as Markdown with a Mermaid diagram
`--verbose`	Print debug information while scanning
`--timeout <ms>`	Per-scanner timeout in milliseconds (default 10000)

Pipe it anywhere

$ cloudtracer example.com --json | jq '.hosting'
$ cloudtracer example.com --markdown > report.md