WhoisJSON Editorial

Domain Intelligence Blog

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

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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.

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.

2026-01-18

8 min read

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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.

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