WhoisJSON Editorial

Domain Intelligence Blog

Actionable guides on WHOIS, RDAP, DNS, SSL, and domain monitoring for developers and security teams.

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Domain Intelligence

WhoisJSON vs WhoisXML API vs Whoxy: Which WHOIS API in 2026?

An honest comparison of WhoisJSON, WhoisXML API, and Whoxy. We compare pricing models, TLD coverage, RDAP support, and which service fits your use case.

How to Query WHOIS Data in Python Using a REST API (2026 Guide)

Step-by-step guide to querying WHOIS data in Python with the requests library. Covers bulk lookups, async with aiohttp, error handling, and a real-world newly-registered domain detection use case.

How to Query WHOIS Data in Node.js Using a REST API (2026 Guide)

Step-by-step guide to querying WHOIS data in Node.js with native fetch. Covers bulk lookups, error handling with AbortController, and a real-world phishing detection use case.

Domain Intelligence

WHOIS vs RDAP: What Changed and Why It Matters

Understand the technical differences between WHOIS and RDAP to build more reliable domain intelligence workflows.

Domain Monitoring for Security Teams: A Practical Baseline

Set up a lightweight domain monitoring process to detect DNS, WHOIS, and SSL changes before they become incidents.

Topics We Cover

Domain Intelligence

WHOIS, RDAP, availability, and expiry data workflows.

Security

Threat intelligence, phishing detection, and monitoring.

Engineering

API integration, caching strategies, and production tips.

Integrations

MCP server, AI assistants, and third-party tooling.

Operations

Domain inventory, expiry control, DNS hygiene, and SSL continuity.

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