Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
JsonWhois is a hosted API service for developers. Its core offering is to wrap domain Whois, IP Whois, IP geolocation, domain availability checks, and webpage screenshots into a unified JSON interface. It mainly addresses the inconsistent formatting of Whois protocols, the complexity of parsing responses, and rate limits on public servers, allowing applications to obtain structured results with a single HTTP GET request.
In terms of functionality, it covers domain metadata, registrant contacts, registrars, DNS status, IP ownership, contacts and network range information, as well as a boolean result indicating whether a domain is available for registration. The Screenshot API can render a URL and return a base64 image, with support for jpeg/png, width and height, transparent background, quality, full-page screenshots, timeout settings, and other parameters. The API uses key-based authentication, requires no special headers, and provides explanations for standard HTTP response codes.
The documentation includes authentication details, error codes, curl examples, PHP examples, and sample JSON responses, making integration relatively straightforward. For client libraries, the main content lists three open-source GitHub repositories for PHP, NodeJS, and Python, while other languages can use the REST API directly. On the security side, it supports IP whitelisting for API keys and provides browsable API logs for usage auditing, which is practical for backend service integrations.
Pricing is PAYG and usage-based, with free quotas for different APIs: the first 250 requests are free for Domain Whois and IP Whois respectively, the first 1000 requests are free for IP Geolocation, the first 500 requests are free for Domain Availability, and the first 50 requests are free for Screenshot. After that, tiered pricing applies, with lower unit prices at higher usage levels. This suits teams with fluctuating usage, but the main content does not disclose payment methods, invoicing, enterprise contracts, or SLA details.
Its strengths are a simple interface, JSON responses, granular pricing, and the ability to abstract away differences between Whois backends for developers. Limitations include the lack of detail on data source coverage, update frequency, geolocation accuracy, availability commitments, and self-hosting options. The page crawl also returned multiple 404 sections, so the site’s maintenance status needs further verification. JsonWhois is suitable for domain tools, asset management, risk control, security analysis, registrar-adjacent products, and SaaS products that need webpage screenshots.
The crawled text does not provide information on network accessibility from mainland China, payment methods, or local compliance, so access from China is rated as unknown. Domestic teams should test API latency, stability, and payment availability before production deployment. If access or compliance is constrained, alternatives such as WhoisXML API, IPinfo, ipdata, Abstract API, and ScreenshotOne may be considered.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on jsonwhois.io official site.
jsonwhois.io is an Unknown API & Data provider. TG4G tracks its product information, an overall rating of 8.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach jsonwhois.io directly.