DOMAIN INSIGHTS · DNS · TRUST SIGNALS

Every domain.
Every change.
One API.

Build intelligent systems powered by global domain intelligence. Access complete DNS records, explainable trust signals, historical WHOIS, infrastructure changes and daily datasets through one API.

Get an API key Explore datasets

Complete DNS Trust signals Historical timelines Leading ccTLD coverage

GLOBAL DOMAIN INDEX CONTINUOUSLY UPDATED

351.8M

registered domains indexed

DNS RESOLVER READY TRUST ENGINE READY

ZONE SOURCES1,437

HOSTNAMES3.21B

WHOIS HISTORY624.1M

01 / COVERAGE

01351.8M

registered domains

indexed and queryable

021,437

zones observed

across the global DNS

033.21B

hostnames tracked

domain and subdomain coverage

04624.1M

WHOIS snapshots

historical context retained

INTELLIGENCE SERVICES

The database is
only the beginning.

Use DomainData as the evidence layer behind your products, audits and automated decisions. Choose one service—or request the complete domain record through one API.

DNS SERVICE

Complete DNS records

Resolve all available A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, DS and SRV records and receive normalized JSON instead of resolver-specific output.

One domain → one complete DNS answer

TRUST SERVICE

Explainable trust signals

Give AI systems current, explainable trust signals instead of asking models to infer credibility from content alone. Combine domain age, DNS stability, mail authentication and infrastructure history.

Ground AI decisions in evidence—not assumptions

WATCHLISTS & ALERTS

Act when a domain changes

Monitor brands, trademarks and confusingly similar domains. Alert IP teams when new registrations or material changes indicate a potential brand infringement.

Potential infringements delivered as actionable alerts

OWNER SIGNALS

Connect domains to entities

Add GDPR-compliant organization and ownership signals to investigations, brand protection and due diligence without storing personal information.

Entity context from domain and infrastructure evidence

FRAUD DETECTION

Find risky domains earlier

Combine registration timing, infrastructure churn, redirect behavior, hosting patterns and web signals to prioritize suspicious domains before they reach customers.

Explainable evidence for triage and automation

DATASETS

Lists and bulk data

Access the most complete ccTLD domain list available, daily gTLD lists and custom enterprise slices in analysis-friendly formats.

ccTLD + gTLD · daily updates · CSV · NDJSON

THE DATA FOUNDATION

Global coverage.
Service-ready data.

DomainData combines zone observation, DNS resolution, web crawling and enrichment into one stable schema. From single API lookups to bulk analytics, every workflow is built on the same evidence.

Registration

Presence, lifecycle and zone-level changes.

DNS & infrastructure

Nameservers, IP movement, hosting and redirect chains.

Web technology

Servers, CMS fingerprints, consent tooling and error states.

Commercial signals

Parking detection, monetization networks and auction indicators.

Privacy-safe identity signals

GDPR-compliant organization and ownership signals, without storing personal information.

Historical events

A queryable timeline for investigations, scoring and audits.

LIVE DOMAIN EVENTS

See what changed.
Know what it means.

A current record is useful. A change with context is actionable. Turn redirects, DNS moves, web technology and hosting fingerprints into alerts, evidence and product decisions.

example.comMONITORED

EVENT TIMELINENEWEST FIRST

09:41:22

Redirect chain detected

New three-hop destination path—useful for takeover, scam and affiliate investigations.

HTTP · HEADERS01

09:39:08

Nameserver change

Authoritative DNS moved to a new provider. Previous state remains available in the timeline.

DNS · NS02

09:37:54

Consent manager found

A compliance and technology marker was added to the current web profile.

WEB SCAN03

09:35:11

Hosting fingerprint updated

IP and server behavior changed—fresh context for monitoring, research and scoring.

IP · SERVER04

DEVELOPER-FIRST

One domain in.
Evidence out.

Retrieve the current domain record, complete DNS data, trust signals and historical context as normalized JSON. Built for verification, audit trails, retrieval pipelines and automated decisions.

DNS recordsA, AAAA, MX, NS, TXT, CNAME, SOA and more in one response.
Trust signalsTraceable evidence for verification, model grounding and defensible decisions.
Changes over timeCurrent state plus the events that explain how it evolved.

Explore the API documentation

GET /v1/domain/:domain

$ curl "https://api.domaindata.net/v1/domain/example.com" \
  -H "Authorization: Bearer YOUR_API_KEY"

200 OKapplication/json

{
  "domain": "example.com",
  "registered": true,
  "nameservers": [
    "a.iana-servers.net",
    "b.iana-servers.net"
  ],
  "dns": {
    "record_types": ["A", "AAAA", "MX", "NS", "TXT"],
    "records": 14
  },
  "trust": {
    "status": "established",
    "signals": [
      "domain_age",
      "stable_nameservers",
      "mail_authentication"
    ]
  },
  "history": {
    "first_seen": "2018-02-13",
    "events": 128
  }
}

USE YOUR DOMAIN SIGNALS

Your next decision
starts with evidence.

Choose the signals you need and put them directly into your legal, security, product, marketing or research workflow.

Legal & brand protection

Continuously monitor trademarks and brand names, notify IP teams of potential infringements, and preserve domain history and ownership signals for review and enforcement.

Infringement alertsEvidenceOwnership

Security & SOC teams

Enrich alerts, expose redirect networks and unstable infrastructure, and prioritize suspicious domains with evidence your analysts can inspect.

Threat intelligenceTriageFraud

Hosting, registrars & registries

Map your market, enrich customer domains, follow infrastructure movements and build new services on global registration and DNS data.

Market shareInfrastructureProducts

Trust & safety teams

Check domains during onboarding, seller review or content moderation and route the highest-signal cases to human review.

MarketplacesOnboardingAutomation

AI, LLM & search products

AI systems need reliable trust signals to distinguish credible sources from risky domains. Ground retrieval, ranking and automated decisions in current, explainable domain evidence.

RAGTrust signalsLive context

Domain investors & brokers

Research portfolios, estimate supply, follow auctions and price signals, and bring historical context into acquisition negotiations.

InvestorsBrokersMarketplaces

Marketing, SEO & agencies

Track competitor launches, discover redirect and technology changes, and investigate domain or IP patterns that can affect organic performance.

CompetitorsSEO riskTechnology

Research & data science

Measure technology adoption, hosting shifts, parked inventories and internet-wide trends with repeatable datasets and historical context.

Internet statisticsModelingResearch

BUILD OR CONNECT?

Skip the collection layer.

Internet-scale domain intelligence is not one database dump. It is zone sources, resolvers, crawlers, enrichment, normalization, refresh scheduling, historical storage and signal engineering.

Manage 1,437 zone sourcesBUILD

Operate DNS and web enrichmentBUILD

Design and validate trust signalsBUILD

Call one DomainData serviceCONNECT

HOW IT WORKS

Observe

Zone sources and the public web are continuously scanned for domains and hostnames.

Enrich

DNS, infrastructure, redirects, web technology and commercial signals are resolved.

Remember

Material changes become historical events instead of overwriting yesterday's truth.

Deliver

Query through the API, monitor a watchlist or obtain a purpose-built bulk export.

COMMON QUESTIONS

Before your first request.

01Is DomainData a database or a live service?

Both. The global domain index and historical store are the data foundation. API services build on top of them to resolve complete DNS records, generate explainable trust signals, expose historical changes and power monitoring workflows.

02How current is the data?

DomainData continuously observes zones, crawls the web and re-runs enrichment. Changes are stored as events, so current state and historical context can be used together.

03Can I monitor a list of domains?

Yes. Watchlists and alerts can monitor brands, keywords, competitors or infrastructure and surface new registrations and relevant changes.

04Do you store personal data?

No. DomainData focuses on domain-level, DNS, infrastructure and web-derived signals. Owner and entity features provide GDPR-compliant organizational context without storing personal information.

05Do you provide bulk data?

Yes. Daily TLD lists, bulk exports and custom data slices are available for research, internal analytics and high-volume product use cases. CSV and NDJSON are available for analysis workflows.

06What is a domain zone?

A zone is the namespace managed under a top-level domain such as .com, .net or .uk. Public suffixes such as .co.uk belong to their corresponding registry structure and are handled correctly when domains are parsed and counted.

07What does DomainData count as a domain?

We count the registrable domain, not each hostname. For blog.example.com, the domain is example.com. Known subdomains remain available as hostnames but do not artificially inflate the registered-domain total.

08Are domain lists complete?

No provider can guarantee a complete view of every domain. DomainData combines zone observation with continuous web discovery and enrichment to provide the broadest possible coverage, with daily list updates and current API data.

09Which signals are available for a domain?

Depending on the service, records can include DNS and IP data, redirects, web errors, server and CMS fingerprints, consent and cookie tooling, parking indicators, public organizational context, historical changes and market signals.

API READY

From a domain name
to a trusted decision.

Start with complete DNS or trust signals. Add historical monitoring and bulk data when your product grows.

Get API access Talk to a data engineer