IP & Domain Intelligence

Geo-location, ASN, blacklist reputation, WHOIS, SSL certificates, DNS records, and mail provider detection — 15 data sources, one API call.

Try:

🔍 Try our API: https://api.lynk.run/ip/v1/lookup/8.8.8.8 click to copy · 300 lookups/min

🌍

15 Data Sources

Geo & ASN, 73 DNSBL zones, WHOIS, SSL, DNS, Tor exit nodes, cloud provider detection — aggregated into one response.

🛡️

Blacklist Reputation

Check IPs against 73 real-time blacklists, domains against 8 RHSBLs, and MX servers for mail reputation — all in one call.

⚡

Unified API Access

One Lynk API key works across all services: Intel, BGP, phone calls. IP lookups, domain WHOIS, SSL — everything in one endpoint.

Need more? Get your Lynk API key

Full access to the Intel Scanner API. One key works across all Lynk services.

300 lookups/min for all users. @link11.com emails get priority access via api.lynk.run

🔍 API Documentation

Integrate IP & domain intelligence into your tools and workflows. View full API docs →

🤖 Use with AI / LLM Agents

Working with Claude, ChatGPT, Cursor, or any AI assistant? Point it at our llms.txt — a Markdown file with everything an agent needs (endpoints, modes, examples, gotchas) in one fetch:

https://intel.lynk.run/llms.txt

Copy-paste prompt template:

Please use the Lynk Intel API to look up [IP or domain].
The full API spec is at https://intel.lynk.run/llms.txt — fetch it
first if you need details on modes, response shape, or rate limits.
Use ?mode=full unless I tell you otherwise.

Lookup Endpoint

GET

https://api.lynk.run/ip/v1/lookup/:target

Lookup any IP address or domain. Returns geo, ASN, privacy, risk, DNS, WHOIS, SSL, and mail data.

IP Lookup

curl -H "Authorization: Bearer lynk_your_api_key" \
  "https://api.lynk.run/ip/v1/lookup/8.8.8.8"

Domain Lookup

curl -H "Authorization: Bearer lynk_your_api_key" \
  "https://api.lynk.run/ip/v1/lookup/github.com"

Lookup Your Own IP

curl -H "Authorization: Bearer lynk_your_api_key" \
  "https://api.lynk.run/ip/v1/lookup/me"

Lookup Modes

Mode	Speed	Data	Fields returned as `null`
`?mode=lite`	~10-50ms	Local only: 7 geo providers, ASN, privacy, DNS, mail provider (no network calls)	`risk`, `whois`, `ssl`, `rdns`
`?mode=medium`	~200-800ms	Lite + rDNS, WHOIS, SSL/TLS handshake (skips all blacklist checks)	`risk`
`?mode=full`	~1-5s	All sources: + 73 IP DNSBLs, 8 domain RHSBLs, MX server blacklists (default)	—

⚠️ Important: null means "not checked in this mode", not "checked and clean". If you need to know whether an IP is blacklisted, you must use ?mode=full.

Lite — fast local enrichment

curl "https://api.lynk.run/ip/v1/lookup/8.8.8.8?mode=lite"

Medium — ideal for bulk domain enrichment (registrar + NS + SSL, no blacklists)

curl "https://api.lynk.run/ip/v1/lookup/github.com?mode=medium"

Full — all sources including blacklist reputation

curl -H "Authorization: Bearer lynk_your_api_key" \
  "https://api.lynk.run/ip/v1/lookup/github.com?mode=full"

Example Response (IP)

{
  "query": "8.8.8.8",
  "type": "ip",
  "ip": "8.8.8.8",
  "ip_version": "IPv4",
  "bogon": false,
  "rdns": "dns.google",
  "sources": {
    "provider_a": {
      "geo": { "city": null, "country": "US", "country_name": "United States", ... },
      "network": { "asn": 15169, "org": "GOOGLE" }
    },
    "provider_b": { ... }
  },
  "privacy": {
    "vpn": false, "proxy": false, "tor": false,
    "hosting": true, "cloud_provider": "GCP"
  },
  "risk": {
    "ip_blacklisted": false,
    "ip_blacklist_count": 0,
    "ip_blacklists": [ ... ]
  }
}

Example Response (Domain)

{
  "query": "github.com",
  "type": "domain",
  "ip": "140.82.121.3",
  "resolved_ips": { "a": ["140.82.121.3"], "aaaa": [...] },
  "dns": { "mx": [...], "ns": [...], "txt": [...] },
  "mail": { "provider": "Google Workspace", "mx_records": [...] },
  "whois": { "registrar": "MarkMonitor", "created": "2007-10-09", ... },
  "ssl": { "issuer": "DigiCert", "days_remaining": 215, "sans": [...] },
  "risk": {
    "ip_blacklisted": false,
    "domain_blacklisted": false,
    "mx_blacklisted": false,
    ...
  },
  ...
}

Direct Links

View results in your browser — shareable and bookmarkable:

https://intel.lynk.run/scan/8.8.8.8
https://intel.lynk.run/scan/github.com

Rate Limits

Access Level	Rate Limit	How to Use
All Users	300 lookups/min per IP	API key via Authorization header
@link11.com	Priority access	Lynk API key