Bulk Domain WHOIS, DNS, Email Security & Availability Checker

What does Bulk Domain WHOIS, DNS & Availability Checker do?

Paste a list of domains, website URLs or email addresses and get, for each domain:

• WHOIS / RDAP registration data — registrar, creation date, expiry date, last update, domain age and days to expiry, status codes (e.g. client transfer prohibited), nameservers, DNSSEC.
• Availability — whether the domain is unregistered and free to buy.
• DNS records — A, AAAA, MX, NS, TXT, CNAME, and whether the domain has a live website.
• Email setup & security — detected mail provider (Google Workspace, Microsoft 365, Zoho, Proton, GoDaddy, …), SPF and DMARC records and the DMARC policy (none / quarantine / reject).

Data comes from official open protocols: RDAP (the modern replacement of WHOIS, served by the registries themselves via IANA) and DNS. No API keys, no rate-limited WHOIS scraping. Thousands of domains per run.

Why use it?

• Lead qualification & enrichment: see which companies use Google Workspace vs Microsoft 365, how old their domain is, and whether they have a website.
• Email deliverability & security audits: find domains missing SPF or DMARC, or with a weak DMARC policy.
• Domain investing & brand protection: check availability in bulk, monitor expiry dates of your portfolio or of names you want to catch.
• Fraud and risk checks: flag very young domains in sign-ups, payments or outreach lists.
• IT inventory: audit DNS and registrars across all your company's domains.

How to use it

1. Paste domains, URLs or emails into Domains (one per line). https://www.example.com/page and jane@example.com both become example.com; duplicates are removed.
2. Choose which checks to run.
3. Click Start and export JSON, CSV or Excel, or use the API and integrations.

Input example

{
  "domains": ["apify.com", "https://www.github.com/about", "jane@zoho.com", "my-new-startup-name.com"],
  "includeWhois": true,
  "includeDns": true,
  "includeEmailSecurity": true
}

Output example

{
  "domain": "github.com",
  "status": "ok",
  "registered": true,
  "available": false,
  "registrar": "MarkMonitor Inc.",
  "registrarIanaId": "292",
  "createdDate": "2007-10-09T18:20:50Z",
  "expiresDate": "2028-10-09T18:20:50Z",
  "updatedDate": "2026-09-07T09:22:52Z",
  "ageDays": 6939,
  "daysToExpiry": 731,
  "domainStatus": [
    "client delete prohibited",
    "client transfer prohibited",
    "client update prohibited"
  ],
  "nameservers": [
    "dns1.p08.nsone.net",
    "dns2.p08.nsone.net",
    "dns3.p08.nsone.net",
    "dns4.p08.nsone.net",
    "ns-1283.awsdns-32.org",
    "ns-1707.awsdns-21.co.uk",
    "ns-421.awsdns-52.com",
    "ns-520.awsdns-01.net"
  ],
  "dnssec": false,
  "a": [
    "140.82.114.3"
  ],
  "aaaa": [],
  "mx": [
    {
      "priority": 0,
      "host": "github-com.mail.protection.outlook.com"
    }
  ],
  "ns": [
    "dns1.p08.nsone.net",
    "ns-421.awsdns-52.com",
    "ns-1707.awsdns-21.co.uk",
    "dns4.p08.nsone.net",
    "dns2.p08.nsone.net",
    "dns3.p08.nsone.net",
    "ns-520.awsdns-01.net",
    "ns-1283.awsdns-32.org"
  ],
  "txt": [
    "google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o",
    "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all"
  ],
  "cname": null,
  "hasWebsite": true,
  "hasMx": true,
  "mailProvider": "Microsoft 365",
  "spf": "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all",
  "hasSpf": true,
  "dmarc": "v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1",
  "hasDmarc": true,
  "dmarcPolicy": "quarantine"
}

An unregistered domain returns "available": true.

How much does it cost?

Pay-per-event pricing: a small fixed price per domain checked (see the Pricing tab). Invalid inputs are free. Platform usage is included.

Limitations

• Registration data is available for every TLD that runs a public RDAP server — all generic TLDs (.com, .net, .org, .io, .ai, .app, …) and most country codes. A few country registries (e.g. .de) do not publish RDAP; for those you still get DNS and email data, and whoisError explains why registration data is missing.
• Registrant contact details are usually redacted by registries for privacy (GDPR) and are not returned.
• "Available" means the registry has no record of the domain; premium or reserved names may still not be purchasable at the standard price.

FAQ

How many domains can I check? As many as you like — the Actor checks them in parallel.

Is this WHOIS? RDAP is the official successor of WHOIS, run by the same registries, and returns structured data instead of free text.