JsonWhois.io review
A focused JSON API for live WHOIS and related domain intelligence calls.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
JsonWhois.io provides REST APIs for live domain WHOIS, IP WHOIS, domain availability, IP geolocation, and webpage screenshots. It is designed for developers and applications that need domain intelligence or related lookup functions without handling WHOIS protocol differences and server rate limits directly. The API platform supports authenticated HTTP requests and JSON-formatted responses, making it suitable for lightweight integrations rather than a browser-based research workflow.
Pricing is usage-based and varies by API and monthly volume. The service has a free plan, including 250 monthly Domain WHOIS and IP WHOIS calls, with different allowances for other services. Paid usage begins at 0.001, while the published pricing model remains pay-as-you-go rather than a set of named subscription tiers. API access is listed as full, and usage can be reviewed through browsable API logs. This structure fits applications with variable lookup demand, especially when a monthly allowance covers initial or limited usage.
The broader API set adds domain availability checks, IP geolocation, and webpage screenshots alongside WHOIS lookups. API-key IP whitelisting provides an additional access-control option for integrations. JsonWhois.io is a focused choice for live, programmatic lookups and related endpoint access, but it is not suited to workflows requiring historical WHOIS records, RDAP support, or bulk lookup. Teams that need those capabilities should choose a WHOIS platform built around historical, standards-based, or high-volume research. For developers seeking lightweight JSON calls with usage-based pricing, JsonWhois.io is the more direct fit.
JsonWhois.io pros and cons
- Where it wins
- Free monthly Domain WHOIS and IP WHOIS allowances
- Authenticated REST requests return JSON-formatted responses
- Includes availability, geolocation, and webpage screenshot APIs
- Where it doesn't
- No historical WHOIS data
- No RDAP support
- No bulk lookup capability
JsonWhois.io fact sheet, pricing and score →
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