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Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability

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Bulk WHOIS and domain lookup: check domain availability, domain age, registrar and expiration dates, status and nameservers from the registries' RDAP (WHOIS where a TLD has none), plus DNS records with MX, SPF and DMARC. A domain checker at $0.002 per domain.

Pricing

from $1.40 / 1,000 domains

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0.0

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Developer

Nebula Colors LLC

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6 hours ago

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You can access the Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

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Bulk WHOIS Lookup and Domain Availability OpenAPI definition

OpenAPI is a standard for designing and describing RESTful APIs, allowing developers to define API structure, endpoints, and data formats in a machine-readable way. It simplifies API development, integration, and documentation.

OpenAPI is effective when used with AI agents and GPTs by standardizing how these systems interact with various APIs, for reliable integrations and efficient communication.

By defining machine-readable API specifications, OpenAPI allows AI models like GPTs to understand and use varied data sources, improving accuracy. This accelerates development, reduces errors, and provides context-aware responses, making OpenAPI a core component for AI applications.

You can download the OpenAPI definitions for Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability from the options below:

OpenAPI.json

If you’d like to learn more about how OpenAPI powers GPTs, read our blog post.

You can also check out our other API clients:

Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability API in Python

Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability API in JavaScript

Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability API through CLI

Bulk WHOIS & Domain Lookup: DNS Lookup and Domain Availability API

Bulk WHOIS Lookup: Domain Age, Expiry, Registrar

thoob/rdap-domain-lookup

Looks up domain registration data through official IANA RDAP servers (the structured-JSON successor to WHOIS): registrar, key dates, status codes, nameservers, DNSSEC, and abuse contact. Clean fields, no mangled WHOIS text. Billed only per resolved domain.

Pono Data

Domain Checker — WHOIS, DNS & SSL Lookup API

vivid_astronaut/domain-checker

Check domain availability and fetch WHOIS records, DNS records, and SSL certificate details in one call. Supports bulk domain lists — useful for domain research, brand monitoring, and infrastructure audits.

BRAINIALL Team

Domain OSINT Recon

prooflio/domain-osint-recon

Aggregates WHOIS, DNS records, certificate-transparency subdomains and PTR records for a domain into one structured report.

Prooflio AI

5.0

(1)

Website domain name validator

saswave/website-domain-name-validator

Verify if a website is still up and running or if it contains a redirection to a new domain name. Data enrichment at scale.

SASWAVE

125

Bulk DNS Records Lookup - A, MX, TXT, NS, CNAME

logiover/bulk-dns-records-lookup

Look up DNS records for thousands of domains at once — A, AAAA, MX, NS, TXT, CNAME, SOA and CAA — via DNS-over-HTTPS. Ideal for email deliverability (SPF/DMARC), security audits and migrations. No API key, export to CSV or JSON.

Logiover

Domain Intelligence Lookup

obicodes/domain-intel

Full domain intelligence in one call. Get WHOIS registration data, DNS records, SSL certificate status, IP geolocation, ASN, mail provider detection, and an actionable email security score (SPF, DMARC, MX). Built for developers, security teams, agencies, and growth teams.

Obicodes

Bulk Domain Checker: WHOIS Lookup, DNS, SSL & HTTP

aiqlabs/bulk-domain-checker

Check a list of domains in one run: DNS records, mail provider from MX, SPF/DMARC, HTTP status and full redirect chain, SSL certificate expiry, and WHOIS/RDAP registration - plus a plain-English issue list per domain. No API keys.

Ai-Q Labs

WHOIS Domain Lookup & Availability - Bulk RDAP KYB API

pink_comic/whois-domain-lookup

Bulk WHOIS/RDAP domain lookup for KYB, merchant risk, and vendor checks. Return registration status, domain age, expiry, registrar, DNS evidence, and cautious availability signals for naming, onboarding, and monitoring. Related: Company Enrichment, Business Entity Search.

Ava Torres

Domain Lookup

greip/domain-lookup

Lookup and analyze domain names and retrieve detailed information including security status, email authentication records (SPF, DMARC, DKIM, MX, BIMI), creation date, and risk assessment. Perfect for domain verification, fraud prevention, and security analysis.

Greip

Domain WHOIS Lookup — Registrar, DNS & Expiry Dates

maged120/domain-lookup

Perform WHOIS lookups on any domain. Returns registrar name, registration and expiry dates, nameservers, and available contact information in structured JSON.