Dompus

Search by domain name, extension, keyword or historical sales record

Search engine for domains and domain sales: 340M+ registered domains, historical sales records, and marketplace trends — collected from across the internet, all in one place.

🛡️
Verified Domain Intelligence • Data Synchronized with Zone Operators (Verisign, IANA, ICANN) • Peer Reviewed

🌐 Comprehensive Global Domain & Aftermarket Intelligence

Dompus (domainsearch.online) is an advanced domain research engine indexing more than 340 million active, expired, and historical domain names across 1,500+ top-level extensions (TLDs). Sourced systematically from authoritative registry zone files and verified aftermarket auctions, Dompus provides researchers, security professionals, and domain investors with instant visibility into worldwide namespace trends.

Whether you need to monitor brand names across global registries, analyze historical domain sales comparables, or discover expired domains with high search authority, our sub-15ms search infrastructure delivers comprehensive intelligence directly to your browser.

📈

Domain Investors

Research aftermarket historical sales, evaluate price comparables, discover unregistered gem variations, and track daily dropped domains for backordering.

🛡️

Brand Protection

Identify typo-squatting, detect brand impersonation across new gTLDs and ccTLDs, and monitor trademark infringements before reputational damage occurs.

🔍

Threat Intelligence

Investigate newly observed domains (NOD), track suspicious naming patterns, inspect DNS records, and uncover malicious infrastructure clusters in real time.

💡

Web Creators

Brainstorm startup and project names with instant substring verification, cross-checking availability across hundreds of extensions in a single keystroke.

⚡ High-Speed Inverted Substring Search Technology

Standard registry WHOIS portals and registrar search boxes restrict users to prefix lookups or exact matches, which fail to reveal when your target term is embedded inside longer compound domains. Dompus operates on an inverted n-gram index powered by a custom ClickHouse columnar database:

By splitting domain names into indexed substrings and caching frequent search vectors at the edge, Dompus processes complex substring queries across 340M+ rows in under 15 milliseconds. Users can query with three distinct matching modes: Contains (finds substrings anywhere in the SLD), Exact (identifies identical SLD registrations across all TLDs), and Starts With (rapid prefix scanning).

❓ Frequently Asked Questions

What makes Dompus different from a regular WHOIS lookup?

Traditional WHOIS checks one domain name on a single extension at a time. Dompus searches across 340M+ domains simultaneously, revealing all registered extensions, active DNS status, and historical sales prices in a unified view.

How frequently is the domain index synchronized?

Our infrastructure synchronizes daily with authoritative zone files from Verisign (.com, .net), PIR (.org), and over 1,400 global registry operators accredited by ICANN to ensure fresh registration data.

Where do historical domain sales records come from?

Sales records are compiled from publicly disclosed and verified aftermarket auction transactions, including sales reported on Sedo, GoDaddy Auctions, NameJet, DropCatch, and Dynadot.

Can I search for domains using partial keywords?

Yes. Select the "Contains" search mode to find any domain containing your keyword anywhere in the name (e.g., searching "pay" uncovers domains like "autopay", "payvector", and "smartpayments").

Is Dompus completely free to use?

Yes, all basic search modes, keyword directories, and sales database lookups are free for public research, supported by unobtrusive advertisements.

How do I report a data discrepancy or request API access?

You can reach our engineering team directly via our Contact Page or by emailing [email protected].

Home / Domains / "a4*"
Keywords matching "a4*" Contains 74776 Domain Count
⚡ Latency: 40.01 ms
Found 74776 registered domains matching "a4*"
a4z9o0o0j7n4w9i9g7w0j8i 1 TLDs
EXTENSIONS: .shop
a4papelariaeinformatica 1 TLDs
EXTENSIONS: .com.br
a4infrastructuresystems 1 TLDs
EXTENSIONS: .com
a4d3r9m2j5h4j5x7h6q1c8d 1 TLDs
EXTENSIONS: .shop
a4creationsconstruction 1 TLDs
EXTENSIONS: .com
a4a3u8z6p7o8c3h0a9h1y8o 1 TLDs
EXTENSIONS: .shop
a4-salondelarchitecture 1 TLDs
EXTENSIONS: .fr
a4-cabriofreunde-bayern 1 TLDs
EXTENSIONS: .de
a4folios500hojas 1 TLDs
EXTENSIONS: .com
a4ksolutions 1 TLDs
EXTENSIONS: .com
a4sextubes 1 TLDs
EXTENSIONS: .com
a4sextube 1 TLDs
EXTENSIONS: .com
a4revista 1 TLDs
EXTENSIONS: .com
a4rfsn6f 1 TLDs
EXTENSIONS: .top
a4kmgigk 1 TLDs
EXTENSIONS: .top
a4i4wpj2 1 TLDs
EXTENSIONS: .top
a4gxqynt 1 TLDs
EXTENSIONS: .top
a43e7d3e 1 TLDs
EXTENSIONS: .top
a4173505 1 TLDs
EXTENSIONS: .pro
a437lls 1 TLDs
EXTENSIONS: .top
a4kloh 1 TLDs
EXTENSIONS: .top
a49588 1 TLDs
EXTENSIONS: .pro
a4s9g 1 TLDs
EXTENSIONS: .shop
a4myh 1 TLDs
EXTENSIONS: .com
a449 8 TLDs
a448 8 TLDs
a408 5 TLDs
EXTENSIONS: .cc.cn.com.lol.vip
a404 13 TLDs
a4xf7-daguml-qmnikm 1 TLDs
EXTENSIONS: .work
a4wph6-4h2526-pcyia 1 TLDs
EXTENSIONS: .work
a4v6it1o-turbotrade 1 TLDs
EXTENSIONS: .vip
a4uautomacaodigital 1 TLDs
EXTENSIONS: .com
a4transportationinc 1 TLDs
EXTENSIONS: .com