Specifications | SSL Certificate Chain Database | WhoisXML API
Products APIs Data Feeds Web Tools Domain Research & Monitoring Enterprise Packages
WHOIS / WHOIS History
WHOIS / WHOIS History

Provide current and historical ownership information on domains / IPs. Identify all connections between domains, registrants, registrars, and DNS servers.

DNS / DNS History
DNS / DNS History

Look into all current and historical DNS / IP connections between domains and A, MX, NS, and other records. Monitor suspicious changes to DNS records.

IP Geolocation / IP Netblocks
IP Geolocation / IP Netblocks

Get detailed context on an IP address, including its user’s geolocation, time zone, connected domains, connection type, IP range, ASN, and other network ownership details.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Access our web-based solution to dig into and monitor all domain events of interest.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Get access to a web-based enterprise-grade solution to search and monitor domain registrations and ownership details for branded terms, fuzzy matches, registrants of interest, and more.

Research
Monitoring
White-Label
WhoisXML API Predictive Threat Intelligence
Predictive Threat Intelligence

Detect and block access to and from dangerous domain names before malicious actors can weaponize them. Contact us today for more information.

WhoisXML API Internet Infrastructure
Internet Infrastructure

Unlock integrated intelligence on Internet properties and their ownership, infrastructure, and other attributes.

Enterprise API Packages
Enterprise API Packages

Our complete set of domain, IP, and DNS intelligence available via API calls as an annual subscription with predictable pricing.

Security Intelligence (SI) Suite
Security Intelligence (SI) Suite

Offers complete access to WHOIS, IP, DNS, and subdomain data for product enrichment, threat hunting and more.

Multi-Level API User Administration Now Available - Manage individual API keys for team members in your organization.

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Specifications Pricing
Datafeed files Output format

Specifications

This data feed subscription is licensed to you or your organization only, you may not resell or relicense the data without explicit written permission from Whois API, Inc. Any violation will be prosecuted to the fullest extent of the law.

The datasets come in the following forms

Depending on the subscription plan, you receive different datasets. They contain different data and have different formats. You can find a detailed description of the differences between datasets on the pricing page.

Here are the key details for the different subscription plans:

Lite

  • Data included: only end-user certificates, only validity dates and PEM-encoded raw certificate data.
  • Filename format: ssl.%DATE%.lite.daily.data.json
  • Filename example: ssl.2022-02-14.lite.daily.data.json.zip
  • Average file sizes:
File Gzip size Rows
lite.daily.data.json.gz 1.5GiB 22.5M

Basic

  • Data included: complete certificates chain, only validity dates and PEM-encoded raw certificate data.
  • Filename format: ssl.%DATE%.basic.daily.data.json
  • Filename example: ssl.2022-02-14.basic.daily.data.json.zip
  • Average file sizes:
File Gzip size Rows
basic.daily.data.json.gz 10GiB 22.5M

Ultimate

File Gzip size Rows
ultimate.daily.data.json.gz 15GiB 22.5M



How to download the datafeed files

Downloading via HTTPS

Downloading via FTP

Downloading via FTPS

Read more about the FTPS connection: https://en.wikipedia.org/wiki/FTPS.

Our FTP server supports explicit FTP over TLS encryption. You may configure your FTP client to use explicit FTP over TLS encryption for secure communications.

Our FTPS server is accessed using the same paths and API keys as a regular FTP server, the instructions for which are described above. To connect via FTPS, select the "Require explicit FTP over TLS" encryption option in your FTP client, if it supports it. FileZilla configuration example:

explicit FTP over TLS encryption