JsonWhois
JsonWhois is a domain API services provider offering REST API access to WHOIS records, website screenshots, and social media metrics, plus bulk database downloads and daily newly registered domains feeds for cybersecurity, brand protection, domain investment, and marketing intelligence customers.
- Company typePrivate
- Founded-
- HeadquartersMaldon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What JsonWhois does
JsonWhois is a domain API services provider delivering programmatic access to WHOIS records, website screenshots, and social media metrics through a REST API. Operated by Whois API LLC, a privately held US-incorporated entity with operating presence in Maldon, United Kingdom, the company serves a global customer base spanning cybersecurity professionals, brand protection teams, domain investors and registrars, digital marketers, market researchers, law enforcement, and individual website owners. The platform is built on Node.js and MongoDB, with SDK support for Python, NodeJS, Ruby, and PHP, rate limits of 300 HTTP requests per minute and 10 concurrent requests, and documented uptime of 99.9% with typical response times of 500ms to 3 seconds. The company maintains GDPR and COPPA compliance.
The product portfolio comprises six offerings: a single-domain WHOIS API with weekly data refreshes, a Bulk WHOIS service for batch lookups, a Screenshot API with monthly image refresh and historical archival, a Social Data API returning counts across Google, Twitter, Facebook, LinkedIn, Pinterest, and Stumbleupon, a complete WHOIS Database Download covering 300+ million active domains across 1,000+ gTLDs and hundreds of ccTLDs in MySQL and CSV formats, and daily Newly Registered Domains feeds delivering approximately 85,000 newly registered or dropped domains per day. The company monetizes through usage-based monthly API subscriptions with burst overage charges ($0.01 per WHOIS lookup, $0.02 per screenshot), one-time or periodic database download fees, and recurring data feed subscriptions.
Distribution combines a self-serve API-first motion via jsonwhois.com with documentation across multiple languages, content marketing through a Ghost-based blog, and a referral partnership with sister site EmailCrawlr offering 20% off. Enterprise and custom plan inquiries are handled via direct sales contact, and a dedicated support network with language expertise in PHP, NodeJS, and Python backs developer integrations. Marketing emphasizes breadth of WHOIS coverage, intelligent parsing with raw-data validation, comprehensive pricing flexibility, and 99.9% uptime reliability.
JsonWhois firmographics
Firmographics- Name
- JsonWhois
- Legal name
- Whois API LLC
- Website
- https://jsonwhois.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- JsonWhois is a domain API services provider offering REST API access to WHOIS records, website screenshots, and social media metrics, plus bulk database downloads and daily newly registered domains feeds for cybersecurity, brand protection, domain investment, and marketing intelligence customers.
- Ownership category
- akta.pro rank
Where JsonWhois is headquartered
LocationHeadquarters
- HQ city
- Maldon
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
JsonWhois business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales
Revenue model
- WHOIS API Calls: Usage-based billing for WHOIS lookups. Customers choose their monthly allocation of calls. Burst queries available at $0.01 per WHOIS lookup when exceeding plan limits.
- Screenshot API: Usage-based billing for screenshot captures. Burst queries available at $0.02 per screenshot when exceeding plan limits. Images are refreshed monthly with historical archive maintained.
- WHOIS Database Download: One-time or periodic downloads of WHOIS database containing over 300 million domains. Available as MySQL dumps or CSV files, with both raw and parsed data options. Covers gTLDs and ccTLDs.
- Newly Registered Domains Feeds: Daily feeds of newly registered or dropped domain names across TLDs. Provides approximately 85,000 domain names registered or dropped daily. Delivered as CSV files readable by spreadsheet applications.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Monthly | Customizable usage-based plans |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
JsonWhois product offering
Product offeringCore offering
JsonWhois provides REST API services for domain intelligence, delivering WHOIS registration data, full-page screenshots, and social media counts on demand. The platform also offers bulk WHOIS lookups, downloadable historic WHOIS databases covering 300+ million domains, and daily feeds of newly registered or dropped domains, all consumed programmatically by developers and integrated into cybersecurity, brand protection, and domain investment workflows.
Product overview
JsonWhois is a Domain API Services platform that offers a suite of interconnected WHOIS data products. The core offering includes the WHOIS API for individual domain lookups, complemented by the Screenshots API for visual domain capture and Social Data API for social media metrics. For larger-scale needs, the Bulk WHOIS service enables batch domain lookups, while the Whois Database Download provides complete historic database access with 300+ million domains. The Newly Registered Domains data feeds offer daily registration snapshots. All services share a common API infrastructure and can be accessed programmatically via SDKs for NodeJS, Ruby, PHP, and Python.
Differentiator
Problem solved
Functional benefit
Products and services
- WHOIS API
Quantifiable outcome
- 300+ million domains available in database
- +3 more outcomes
Companies that use JsonWhois
Customer profileSegments6 records
Ideal customer profiles5 records
JsonWhois technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
JsonWhois partnerships and signals
Strategic signalScale indicators6 records
Recent moves6 records
Expansion highlights6 records
JsonWhois competitors and assessment
Company assessmentDirect peers
- DomainTools: Established domain intelligence platform offering WHOIS lookup, historic WHOIS, DNS, and threat-intelligence datasets. Competes with JsonWhois for the same cybersecurity, brand-protection, and investigator customers at the enterprise tier.
- SecurityTrails: Provides DNS and domain history APIs including WHOIS, passive DNS, and asset inventory feeds. Comparable API-first delivery and shared customer base of security researchers and threat hunters.
- ViewDNS.info: Long-running WHOIS, IP, and DNS data service. Direct comparable on bulk WHOIS lookups and free/paid hybrid API access for similar SMB and developer customers.
- Whoxy: WHOIS lookup and domain history API serving SEO, cybersecurity, and law-enforcement users. Closely mirrors JsonWhois's product set and usage-based pricing model.
- Whoisology: Domain ownership research tool that correlates WHOIS records across registrants. Overlaps with JsonWhois on investigative and law-enforcement use cases.
- DNSlytics: DNS analytics and WHOIS lookup platform with API access. Comparable data scope and developer-oriented delivery model.
- WhoisXMLAPI: Direct WHOIS and domain intelligence API provider offering individual lookups, bulk downloads, NRD feeds, and screenshot services. Closest one-to-one competitor to JsonWhois across product surface and target customers.
Broad incumbents
- MarkMonitor (Clarivate): Enterprise brand-protection incumbent using domain and WHOIS intelligence as part of a broader anti-counterfeiting and anti-piracy portfolio. Competes for the same enterprise brand-protection buyers that JsonWhois targets.
- RiskIQ (Microsoft Defender Threat Intelligence): External attack surface and threat-intelligence platform with WHOIS and domain data integrated into a broader security suite. Overlaps with JsonWhois on threat-detection and IoC use cases for larger enterprise buyers.
Emerging players
- URLscan.io: URL and domain scanning service that captures screenshots and HTTP context for analysis. Comparable to JsonWhois's Screenshot API and overlaps on cybersecurity research workflows.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
JsonWhois social profiles
Digital presenceJsonWhois compliance and trust
Trust signalCompliance2 records
JsonWhois financial estimates
Financial estimateRevenue estimate
Valuation estimate
JsonWhois leadership team
Management profileNumber of profiles
JsonWhois funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
JsonWhois M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about JsonWhois
What does JsonWhois do?
JsonWhois provides REST API services for domain intelligence, delivering WHOIS registration data, full-page screenshots, and social media counts on demand. The platform also offers bulk WHOIS lookups, downloadable historic WHOIS databases covering 300+ million domains, and daily feeds of newly registered or dropped domains, all consumed programmatically by developers and integrated into cybersecurity, brand protection, and domain investment workflows.
Is JsonWhois a public or private company?
JsonWhois is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was JsonWhois founded?
JsonWhois was founded in -1. It employs 1 to 10 people.
Where is JsonWhois based?
JsonWhois is headquartered in Maldon, United Kingdom, in the Europe region.
How does JsonWhois make money?
Four revenue lines are on record. WHOIS API Calls are the primary driver. The others are screenshot API, WHOIS Database Download and newly Registered Domains Feeds.
Who are JsonWhois's main competitors?
Direct peers on record are DomainTools, SecurityTrails, ViewDNS.info, Whoxy, Whoisology, DNSlytics and WhoisXMLAPI. Broad incumbents are MarkMonitor (Clarivate) and RiskIQ (Microsoft Defender Threat Intelligence). URLscan.io is listed as an emerging player.
Does JsonWhois have an API?
Yes. JsonWhois provides a REST API for WHOIS lookups, social data retrieval, and screenshot capture. The API offers endpoints for fetching WHOIS records (GET https://jsonwhois/api/v1/whois), social data (GET https://jsonwhois/api/v1/social), and screenshots (GET https://jsonwhois/api/v1/screenshot). SDK support is provided via Unirest library for NodeJS, Ruby, PHP, and Python. Usage limits include a maximum of 300 HTTP requests per minute and up to 10 concurrent requests. Average response times range from 500ms to 3 seconds. The service supports both human interactive and automated use cases. Developer documentation is at jsonwhois.com/docs.