WHOISOLOGY

What WHOISOLOGY does

Whoisology is a reverse WHOIS domain name ownership database that aggregates and cross-references more than 5 billion archived WHOIS records covering 317+ million active domains across 2,850+ TLDs and ccTLDs, with quarterly data updates since 2008. Its core product is a self-serve web platform (whoisology.com) that lets users search domain ownership by registrant name, email, organization, phone, address, registrar, nameservers, and dates, and then drill into every result by clicking any data attribute to reveal all other domains connected to it. Purpose-built tools include Advanced Search (multi-filter WHOIS queries, $5 each), Keyword Search ($3 each), and Bulk Domain Search (up to 5,000 domains per query, priced per 1,000 records). The platform also offers full downloadable WHOIS database files in MYSQL and CSV formats.

The business runs on a freemium and tiered subscription model. A free basic membership with limited daily pages and advertisements serves as the top-of-funnel; paid Premium tiers (Beginner $30/month or $300/year, Advanced $90/month or $900/year, Legendary $270/month or $2,700/year) unlock higher page allowances, search credits, historical archive depth, API credits, and ad-free access. Additional revenue comes from usage-based fees for advanced, keyword, and bulk searches and from one-time enterprise database download sales handled via a direct sales contact. Customer segments are horizontal: cybersecurity and cybercrime investigators, law enforcement, corporate intelligence and brand-protection teams, legal and compliance professionals, marketing and business development, and journalists (via a complimentary Media Level Access program). The company is privately held and founder-owned, with Ryan McKegney listed as co-founder, operating without disclosed institutional funding or headcount data.

Name

WHOISOLOGY

Legal name

Whoisology

Website

https://whoisology.com

Company type

Private

Operating status

Operating

Short description

Whoisology is a self-serve reverse WHOIS database that aggregates over 5 billion historical domain ownership records across 2,850+ TLDs since 2008. It serves cybersecurity investigators, law enforcement, corporate intelligence, legal, and journalist users via freemium and tiered subscriptions.

Ownership category

akta.pro rank

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations

Revenue model

1. Premium Subscription Memberships: Recurring subscription revenue from tiered membership plans (Beginner, Advanced, Legendary) billed monthly or annually. Premium members receive higher page allowances per hour, free advanced and keyword search credits, discounted bulk downloads, access to all archive periods, and no advertisements.
2. Usage-Based Search Fees: Additional fees for advanced searches ($5 each), keyword searches ($5 each), and bulk domain searches (Full Details $20 per 1,000 domains; Admin/Registrant/Other details $5 per 1,000 domains). Premium memberships include varying monthly credits that offset these fees.
3. Freemium / Free Basic Access: Free basic membership offering limited daily results. Free users receive a small number of pages per day and can upgrade by registering. Free members see advertisements on the site.
4. WHOIS Database Download Sales: One-time purchase or subscription for downloadable WHOIS database files covering all gTLDs and ccTLDs in MYSQL and CSV formats, with pricing based on report types (Basic Reports start at $2-$10 per 1,000 results depending on tier).

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Whoisology is a reverse WHOIS domain name ownership database and archive containing over 5 billion searchable and cross-referenced WHOIS records covering 317+ million active domains across 2,850+ TLDs and ccTLDs. The platform enables reverse WHOIS lookup — searching for all domains owned by a specific person, email, organization, phone, or address — using over 10 years of historical WHOIS data collected since 2008. Customers access these capabilities through a self-serve web platform with free and premium subscription tiers, with optional bulk WHOIS database downloads.

Product overview

Whoisology is a domain name ownership archive offering a unified platform of reverse WHOIS lookup tools. The core product consists of the searchable Whoisology Platform containing billions of archived WHOIS records. The platform is complemented by premium membership tiers (Beginner, Advanced, Legendary) that unlock advanced search tools (Advanced Search, Keyword Search, Bulk Domain Search), greater data access volumes, and API credits. An optional WHOIS Database Download add-on provides bulk data files in MYSQL and CSV formats. A specialized Media Level Access tier serves journalism and media professionals. The Whoisology 101 tutorial section provides user education. Data is updated approximately quarterly.

Differentiator

Problem solved

Functional benefit

Products and services

• Whoisology Platform Self-serve web platform providing reverse WHOIS lookup across a 5+ billion record archive of historical domain name ownership data, used by cybersecurity, corporate intelligence, legal, and brand protection professionals.
• Basic (Free) Membership Free tier offering limited daily page access with basic WHOIS search capabilities; includes a small number of pages per day and access to the most current archive, with advertisements displayed on the site.
• Premium Membership Paid subscription tier with three levels (Beginner $30/month or $300/year, Advanced $90/month or $900/year, Legendary $270/month or $2,700/year) offering higher page allowances per hour, advanced and keyword search tools, complimentary report downloads, discounted bulk downloads, no advertisements, historical WHOIS archive access, and varying monthly API credits.
• WHOIS Database Download Bulk purchase of the full WHOIS database in MYSQL and CSV formats, containing over 5 billion WHOIS records, 317+ million active domains across 2,850+ TLDs and ccTLDs, with historical data collected since 2008. Custom pricing available via sales contact.
• Media Level Access Complimentary specialized access tier for journalists, bloggers, and media professionals to use the platform for investigative reporting, with company email verification required for approval.

Quantifiable outcome

• 5+ billion WHOIS records across 317+ million active domains
• +3 more outcomes

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators6 records

Recent moves3 records

Expansion highlights4 records

Direct peers

• ViewDNS.info: ViewDNS.info offers a free and freemium suite of WHOIS, IP, DNS, and domain-history tools. Direct overlap on basic reverse-registrant and WHOIS-history queries for investigators on tight budgets.
• Censys: Censys provides internet-wide scanning and certificate/WHOIS intelligence used by security researchers. Comparable on self-serve subscription access to internet-intelligence data and emphasis on historical certificate/registrant records.
• Shodan: Shodan is a subscription-based search engine for internet-connected devices and host/registrant data. Comparable as a self-serve internet-intelligence subscription serving security researchers and investigators on a similar PLG model.
• Whoxy: Whoxy is a reverse WHOIS lookup and domain-monitoring service that lets users find domains by registrant email, name, or phone. It targets the same cyber-investigation and brand-protection use cases and overlaps on subscription-based reverse-registrant search.
• DomainTools: DomainTools is the leading commercial provider of WHOIS, reverse WHOIS, DNS, and domain-intelligence data. It overlaps directly with Whoisology on historical WHOIS lookup and reverse registrant search, and competes for the same cybersecurity, brand-protection, and investigator buyer.
• SecurityTrails: SecurityTrails provides historical DNS, WHOIS, and domain-intelligence data through a self-serve SaaS platform used by security researchers. Comparable on historical record archive, API access, and tiered subscription pricing for individual security buyers.

Broad incumbents

• Recorded Future: Recorded Future is a large threat-intelligence platform that ingests WHOIS, DNS, and domain data alongside other telemetry. Indirectly comparable as a buyer and consolidator of domain-intelligence feeds that Whoisology could integrate with or compete against.
• CSC Digital Brand Services: CSC provides corporate domain registrar, brand-protection, and anti-fraud services to large enterprises. Comparable on the brand-protection dimension of WHOIS intelligence, but operates primarily in an enterprise services model rather than self-serve subscriptions.
• MarkMonitor (Clarivate): MarkMonitor is an enterprise brand-protection and domain-management platform owned by Clarivate. Overlaps with Whoisology on WHOIS-based brand/typosquat detection, but bundles it with full-service corporate domain portfolio management for large enterprises.

Others

• DomainScan / Whois.com (Whois Identity & Integrity): Whois.com is a free public WHOIS lookup front-end operated by Whois Identity & Integrity. Not a like-for-like competitor (no reverse-WHOIS archive), but sets the floor price for free WHOIS lookups that Whoisology's free tier is benchmarked against.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/whoisology

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WHOISOLOGY