Live data — updated in real time

Understand Any
Domain or IP

Instantly look up DNS records, WHOIS, SSL certificates, hosting providers, geolocation, ASN data, and threat intelligence — all in one platform.

  • DNS, WHOIS, SSL & hosting provider in a single lookup
  • 50M+ domains indexed, 100M+ IP records tracked
  • Real-time threat intelligence from 10+ sources
  • REST API with sub-200ms response time

50M+

Domains

100M+

IP Records

99.9%

Uptime

5M+

Queries/day

142ms
// GET /v2/domain/google.com  •  HTTP 200  •  142ms
{
  "domain": "google.com",
  "status": "active",
  "ip": "142.250.185.78",
  "ipv6": "2607:f8b0:4004:c1b::71",
  "hosting": {
    "provider": "Google LLC",
    "asn": "AS15169",
    "country": "US",
    "city": "Mountain View"
  },
  "dns": {
    "a": ["142.250.185.78", "142.250.185.46"],
    "mx": ["smtp.google.com"],
    "ns": ["ns1.google.com", "ns2.google.com"],
    "ttl": 300
  },
  "ssl": {
    "issuer": "Google Trust Services",
    "valid": true,
    "expires": "2026-08-15",
    "grade": "A+"
  },
  "whois": {
    "registrar": "MarkMonitor Inc.",
    "created": "1997-09-15",
    "expires": "2028-09-14",
    "age_days": 10442
  },
  "threat": {
    "score": 0,
    "blacklisted": false,
    "phishing": false
  }
}
Operational ·<200ms·google.com· Free API key →

Trusted by security teams and developers at

Cloudflare
Amazon Web Services
DigitalOcean
Stripe
GitHub
Vercel
Shopify
Twilio

Platform Capabilities

Everything You Need for IP & Domain Intelligence

From basic WHOIS lookups to advanced threat detection, HostInfo provides a complete toolkit for understanding internet infrastructure.

IP Geolocation

City-level accuracy for 4.2B+ IPv4 addresses. Country, region, postal code, coordinates, timezone, and accuracy radius.

ASN & BGP Data

100K+ autonomous systems tracked. ASN name, type, route, peers, prefixes, and organizational details.

Privacy Detection

Detect VPNs, proxies, Tor exit nodes, and relay services. 300+ providers identified with <0.1% false positive rate.

WHOIS Records

Parsed WHOIS for domains and IPs. Registrar, registration dates, nameservers, and ownership data with historical tracking.

DNS Records

Full DNS resolution: A, AAAA, MX, CNAME, TXT, NS, SOA, SRV, and CAA records with TTL and propagation status.

SSL Certificates

Certificate details, issuer chain, validity period, SAN entries, protocol support, and security grade assessment.

Residential Proxy

Behavior-based residential proxy detection with confidence scoring, ISP mismatch signals, and rotation tracking.

IP to Company

Identify the organization behind any IP. Company name, domain, industry, size, and type classification for B2B intelligence.

Mobile Carrier

Identify carrier name, MCC/MNC codes, and connection type. 1,000+ carriers tracked with 98% accuracy on mobile IPs.

Internet Rankings

Top hosters, domains, TLDs, registrars, and backlinks. Updated daily from our index of 500M+ domains.

Abuse Contact

Get abuse reporting contacts, network registrar data, and operator info from all 5 Regional Internet Registries.

Hosted Domains

Reverse IP lookup to find all domains on any server. 500M+ domains indexed with historical hosting data.

Data Products

The Right IP Data, Delivered

From free basics to full-stack intelligence. Choose the tier that fits your needs.

Lite

Free

Forever · No credit card

7

data attributes

  • 50K requests/month
  • Country-level geolocation
  • Basic ASN data
  • City-level accuracy
Start Free

Core

$49/mo

For growing apps

16

data attributes

  • 500K requests/month
  • City-level geolocation
  • VPN/proxy detection
  • Carrier data
Start Trial

Plus

$149/mo

For scaling businesses

32

data attributes

  • 2M requests/month
  • Named anonymizers
  • Geo radius accuracy
  • Webhooks & priority support
Start Trial

Max

$299/mo

Full visibility

35

data attributes

  • 10M requests/month
  • Residential proxy signals
  • Advanced risk scoring
  • 24/7 support + SLA
Learn more

Enterprise

Custom

Tailored for scale

40+

data attributes

  • Unlimited requests
  • Private routing
  • Custom data blends
  • Dedicated infrastructure
Contact Sales

Live Data

Internet Rankings

Updated daily from our index of 500M+ domains

Top Hosters

by domains hosted
1amazon.com146,350,023
2cloudflare.com69,228,721
3ascenty.com36,257,398
4google.com25,053,130
5sedo.de18,669,649
6ionos.com13,475,433
7hostinger.com12,995,197
8linode.com11,098,820
9squarespace.com10,794,435
10wix.com9,847,331
View all hosters →

Top Backlinks

by backlink count
1facebook.com36,806,904
2instagram.com30,954,463
3twitter.com14,192,464
4google.com12,631,163
5linkedin.com12,132,933
6youtube.com12,119,779
7sedo.com9,846,597
8godaddy.com6,222,077
9wordpress.org5,307,798
10hostinger.com5,071,355
View all backlinks →

Top TLDs

by domain count
1.com231,767,900
2.tk35,301,020
3.cn26,370,952
4.de25,110,581
5.net17,303,170
6.org15,507,324
7.ru14,779,170
8.xyz12,960,206
9.cf11,054,482
10.co.uk11,004,148
View all TLDs →

Who Uses HostInfo

Built for Every Team

From security operations to digital marketing, HostInfo delivers the intelligence every team needs.

Security Teams

Investigate suspicious IPs, map attack surfaces, and identify threats with real-time intelligence feeds.

  • Threat actor IP investigation
  • Proxy & VPN detection for SOC
  • Abuse reporting & contact lookup

Fraud Prevention

Stop fraudulent signups, detect account takeovers, and score risk in real time at the network edge.

  • VPN/TOR/proxy detection at signup
  • Residential proxy identification
  • Device & IP risk scoring

Developers & DevOps

RESTful API with consistent JSON, SDKs for 6 languages, and sub-200ms latency for production workloads.

  • Simple token-based auth
  • Bulk lookup endpoints
  • Webhook integrations

Domain Investors

Deep WHOIS data, registrar history, expiry alerts, and domain valuation signals for portfolio management.

  • WHOIS history & change tracking
  • Expiry date monitoring
  • Backlink & traffic signals

Digital Marketers

Competitor domain profiling, backlink analysis, technology stack detection, and SEO intelligence.

  • Competitor hosting analysis
  • Backlink profiling
  • Technology fingerprinting

Network Engineers

ASN data, IP prefix lists, BGP routing analysis, and CIDR block ownership for network infrastructure.

  • BGP peer & prefix data
  • IP range ownership
  • Route origin validation

Developer API

Powerful API, Simple Integration

Clean JSON responses, sub-200ms latency, single API key authentication. No OAuth complexity. Scale from prototype to production with the same key.

  • 15+ RESTful endpoints with consistent JSON schema
  • Bulk and batch endpoints for mass lookups
  • Webhook support for asynchronous workflows
  • SDKs: Python, Node.js, PHP, Go, Ruby, Java
  • 99.9% uptime SLA with global edge network
# Full IP intelligence lookup
curl -H "Authorization: Bearer YOUR_TOKEN" \
  https://api.hostinfo.com/v2/ip/8.8.8.8

{
  "ip": "8.8.8.8",
  "city": "Mountain View",
  "region": "California",
  "country": "US",
  "org": "Google LLC",
  "asn": "AS15169",
  "privacy": { "vpn": false, "proxy": false },
  "abuse": { "email": "[email protected]" }
}

What People Say

Trusted by 10,000+ Developers & Teams

"HostInfo replaced three separate data vendors for us. The unified API saved us thousands per month and the data accuracy is measurably better."

AM

Alex Mueller

CTO, FinSecure GmbH

"Sub-200ms API responses every single time, even under peak load. Integrating threat intelligence into our SIEM pipeline took hours, not weeks."

SK

Sarah Kim

Security Engineer, CrowdLayer

"Best free tier in the industry. We ran our entire MVP on the free plan before upgrading. Zero friction to get started and no surprises when we scaled."

DL

David Lawson

VP Engineering, RapidScale

"The WHOIS data freshness is unmatched. I can track expiring domains and get registrar change alerts faster than any other provider I've tried."

MP

Maria Petrova

Domain Investor, DomainVault

"Privacy detection accuracy is incredible — 99.4% precision on proxy detection. Our fraud losses dropped 60% in the first quarter after integration."

JR

James Reeves

Fraud Analyst, PayGuard

"The ranked domain data is gold for competitive research. We use HostInfo rankings daily to track hoster market share and identify new opportunities."

YT

Yuki Tanaka

Digital Marketing Lead, NexusAds

Why HostInfo

How We Compare

The most comprehensive IP & domain intelligence platform, at a fraction of the cost.

Feature HostInfo IPinfo SecurityTrails host.io
IP Geolocation
Privacy / VPN Detection
Domain WHOIS
ASN / BGP Data
DNS Records
SSL Certificate Analysis
Threat Intelligence
Hosted Domains (Reverse IP)
Internet Rankings
Free Tier50K/mo50K/mo1K/mo
API Response Time<200ms~250ms~400ms~600ms