DomainDoctor

Domain intelligence console

Waiting for target

Enter a domain to generate technical intelligence.

This app runs without a backend. DNS, mail policies, and common subdomains are checked from the browser; the remaining report surface is structured for future real API integrations.

Priority findings

DNS records

DoH lookup: A, AAAA, NS, MX, TXT, SOA, CNAME, SRV, CAA.

Resolved subdomains

DNS resolution over a common endpoint wordlist.

DNS health

IP inventory

Endpoint surface

SSL / TLS

HTTP security headers

Threat intel

Mail authentication

MX, SPF, DKIM, DMARC, MTA-STS, and TLS reporting.

WHOIS / Registry

Server and network

Ports and services

Inferred technology

Web quality

Crawler

Extras

Core Web Vitals & Performance

Lighthouse-style performance metrics and resource breakdown.

Server Features

HTTP response features and optimizations.

HTTP/2 & HTTP/3

Protocol negotiation and QUIC support.

HSTS Preload

Chrome HSTS preload list eligibility.

Redirect Chain

HTTP redirect hops from initial request.

TLS Cipher Suites

Supported cipher suites and key exchange algorithms.

Certificate Transparency

CT log entries and certificate history.

WAF / Firewall Detection

Web Application Firewall and DDoS protection analysis.

DNSSEC Validation

DNSSEC chain of trust verification.

Cookie Analysis

Detected cookies, security flags, and privacy compliance.

Robots.txt Analysis

Crawler directives and access rules.

Sitemap Analysis

XML sitemap structure and indexing coverage.

Domain Rank & Reputation

Global ranking across major domain lists.

Archive History

Wayback Machine snapshots and historical presence.

Network / ASN

Autonomous System and BGP routing information.

DNS Server Locations

Geographic distribution of authoritative nameservers.

Global Latency

Estimated response times from different geographic regions.

Carbon Footprint

Environmental impact estimation based on page weight and traffic.

Accessibility Analysis

WCAG compliance indicators and common accessibility patterns.

Associated / Related Domains

Registration status of the same base name across common TLDs.

DNS Propagation

Resolution consistency across major public DNS resolvers.

Security.txt Details

RFC 9116 security contact and vulnerability disclosure policy.

Link Analysis

Internal/external link structure and distribution.

Data Sources

Which data points come from real live APIs vs. deterministic estimates.

Raw report

Client-generated object for debugging and future integrations.