Know where any website really lives.
CloudTracer is a command-line tool that scans a domain and reveals the full cloud stack behind it — registrar, DNS, CDN, hosting, SSL, email, and third-party services — in one tree.
npx cloudtracer example.com
Example output
$ 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
Every scan runs these layers in parallel and stitches the results into a single readable view.
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01 Registration
Registrar, registration date, and expiration via RDAP with a WHOIS fallback.
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02 DNS
Authoritative nameservers and the provider behind them (Cloudflare, Route 53, NS1, etc.).
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03 CDN
CDN and WAF detection from response headers — Cloudflare, Fastly, CloudFront, Akamai, and more.
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04 Hosting
IPv4/IPv6, ASN, and the hosting platform — including Vercel, Netlify, Fly.io, and GitHub Pages.
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05 SSL / TLS
Issuer, protocol version, SANs, and days-until-expiry with traffic light coloring.
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06 Email
MX provider, SPF and DMARC presence — a quick read on deliverability posture.
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07 Third-Party Services
Analytics, marketing, and monitoring tools embedded in the page — scraped from the rendered HTML.
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08 Performance
DNS resolution, TLS handshake, TTFB, total response time, and content size.
Usage
Quick start
$ npx cloudtracer example.com
Install globally
$ npm install -g cloudtracer $ cloudtracer example.com
Options
Pipe it anywhere
$ cloudtracer example.com --json | jq '.hosting' $ cloudtracer example.com --markdown > report.md