WHOIS & Domain Lookup: Bulk RDAP, DNS, SSL and Email Provider

Check a list of domains in one run and get one clean record per domain with its registration details (registrar, creation and expiry dates, domain age), DNS setup, email provider, SPF and DMARC, SSL certificate and website status. Registration data comes from the registries' official RDAP services, the modern replacement for WHOIS. $1.50 per 1,000 domains.

What can this bulk domain lookup do?

Area	What you get	Source
Registration (WHOIS/RDAP)	registrar, IANA ID, abuse email, registrant organisation and country (where published), created, updated and expiry dates, domain age, days to expiry, status codes, nameservers, DNSSEC	Official registry RDAP via IANA's directory
DNS	A, AAAA, MX, NS, TXT, www CNAME, SPF and the services it names, DMARC and its policy, verification records, email provider	Public DNS-over-HTTPS (Google, Cloudflare backup)
SSL certificate	issuer, subject, SANs, valid from/to, days to expiry, validity and error, TLS version	Direct TLS connection to port 443
Website	HTTPS status, final URL, server header	One HTTPS request to the home page

mailProvider identifies Google Workspace, Microsoft 365, Zoho Mail, Proofpoint, Mimecast and others from MX records. spfServices lists senders such as SendGrid, Mailchimp or HubSpot. verificationServices shows which services (Google, Microsoft, Atlassian, DocuSign, Stripe...) have verified the domain.

Input can be domains, URLs or email addresses; subdomains are reduced to the registered domain unless you choose to keep them.

Who uses it?

• Sales and marketing teams enriching lead lists with email platform and tools in use.
• IT, security and compliance teams auditing a domain portfolio for expiring domains and certificates or missing DMARC.
• Domain investors and brand managers tracking age, registrar and expiry.
• Email deliverability consultants checking SPF and DMARC across client domains.

How to use it

1. Click Try for free (or Start).
2. Paste Domains (or URLs or email addresses), one per line.
3. Leave all checks on, or turn off the ones you do not need.
4. Run it, then filter for expiresInDays < 60, sslDaysToExpiry < 21 or an empty dmarcPolicy.

Input example

{
  "domains": [
    "python.org",
    "shopify.com",
    "bbc.co.uk",
    "info@spiegel.de"
  ],
  "checkRegistration": true,
  "checkDns": true,
  "checkSsl": true,
  "checkHttps": true
}

Output example

{
  "domain": "python.org",
  "registeredDomain": "python.org",
  "rdapSource": "https://rdap.publicinterestregistry.org/rdap",
  "registered": true,
  "registrar": "Gandi SAS",
  "registrarIanaId": "81",
  "registrarUrl": null,
  "registrarAbuseEmail": "abuse@support.gandi.net",
  "registrantOrganization": "Python Software Foundation",
  "registrantCountry": "US",
  "createdDate": "1995-03-27T05:00:00Z",
  "updatedDate": "2026-08-12T05:01:11Z",
  "expiryDate": "2033-03-28T05:00:00Z",
  "domainAgeDays": 11538,
  "expiresInDays": 2342,
  "domainStatus": [
    "client transfer prohibited"
  ],
  "rdapNameservers": [
    "ns-1134.awsdns-13.org",
    "ns-2046.awsdns-63.co.uk",
    "ns-484.awsdns-60.com"
  ],
  "dnssec": false,
  "dnsResolved": true,
  "aRecords": [
    "151.101.128.223",
    "151.101.192.223",
    "151.101.0.223"
  ],
  "aaaaRecords": [
    "2a04:4e42:200::223",
    "2a04:4e42:600::223",
    "2a04:4e42:400::223"
  ],
  "mxRecords": [
    "50 mail.python.org"
  ],
  "nsRecords": [
    "ns-1134.awsdns-13.org",
    "ns-2046.awsdns-63.co.uk",
    "ns-484.awsdns-60.com"
  ],
  "txtRecords": [
    "openai-domain-verification=dv-VgeNijVDgW7g56UZyGIVyKNr",
    "status-page-domain-verification=9y2klhzbxsgk",
    "libera-1298aas"
  ],
  "wwwCname": "dualstack.python.map.fastly.net",
  "spfRecord": "v=spf1 mx ip4:188.166.95.178/32 ip6:2a03:b0c0:2:d0::71:1 include:stspg-customer.com include:_spf.google.com include:mailgun.org ~all",
  "spfServices": [
    "Google Workspace",
    "Mailgun"
  ],
  "dmarcRecord": "v=DMARC1; p=none; pct=100; rua=mailto:re+shb8ybr70a3@dmarc.postmarkapp.com; sp=none; aspf=r;",
  "dmarcPolicy": "none",
  "verificationServices": [
    "OpenAI",
    "Google",
    "GlobalSign"
  ],
  "mailProvider": "Self-hosted / other",
  "sslHost": "python.org",
  "sslValid": true,
  "sslError": null,
  "sslIssuer": "GlobalSign Atlas R3 DV TLS CA 2025 Q4",
  "sslIssuerOrganization": "GlobalSign nv-sa",
  "sslSubject": "www.python.org",
  "sslSans": [
    "www.python.org",
    "*.python.org",
    "python.org"
  ],
  "sslValidFrom": "2026-01-13T13:03:46Z",
  "sslValidTo": "2027-02-14T13:03:45Z",
  "sslDaysToExpiry": 108,
  "tlsVersion": "TLSv1.3",
  "httpsResponds": true,
  "httpsStatus": 200,
  "finalUrl": "https://www.python.org/",
  "serverHeader": "nginx",
  "httpsError": null,
  "checkedAt": "2026-10-28T14:35:14Z"
}

How much does it cost?

$1.50 per 1,000 domains ($0.0015 per domain, all checks included), plus a $0.00005 start fee per run.

You check	You pay
100 domains	$0.15
2,000 customer domains every month	$3.00 a month
20,000 domains	$30.00

Volume discounts on higher Apify plans. The prices above are for the Apify Free plan. On paid plans the per-result price drops automatically: about 15% lower on Bronze, 25% lower on Silver and 38% lower on Gold and above.

Use it via API, Make, Zapier, n8n or an AI agent

Apify API. Start a run and get the results back in one HTTP request (replace YOUR_API_TOKEN with the token from Apify Console > Settings > Integrations):

curl -X POST "https://api.apify.com/v2/acts/plotpointtech~bulk-domain-lookup/run-sync-get-dataset-items?token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"domains": ["python.org", "shopify.com", "bbc.co.uk", "info@spiegel.de"], "checkRegistration": true, "checkDns": true, "checkSsl": true, "checkHttps": true}'

For longer jobs, start the run asynchronously and read the dataset when it finishes. Official apify-client libraries exist for Python and JavaScript; the API tab on this page has ready-made code.

No-code automation. Connect the tool to Make, Zapier, n8n, Google Sheets, Slack, Airtable or any webhook with Apify integrations, and use Schedules in Apify Console to run it hourly, daily or weekly.

AI agents (MCP). Give Claude, ChatGPT, Cursor, VS Code or any MCP-compatible agent direct access to this tool through the hosted Apify MCP server. Add this server URL to your client:

https://mcp.apify.com?tools=plotpointtech/bulk-domain-lookup

The agent can then call the tool with the same input fields shown above and read the results.

FAQ

Is it legal to look up domain data? Yes. RDAP and DNS are public services designed for automated queries, and certificates are presented to every visitor. The tool does not collect registrant names, emails or phone numbers of private individuals; redacted values stay empty. Some registries limit how their data may be used (for example DENIC, .de, to technical and administrative purposes); follow those terms.

What is RDAP and how is it different from WHOIS? RDAP is the structured, standardised successor to WHOIS, run by the same registries and registrars. It returns the same registration facts in a reliable format.

What does registered: false mean? The registry's RDAP service reported the domain as not found, which usually means it is available. It is empty when a registry has no RDAP service.

Why are dates missing for some country domains? Some ccTLD registries publish limited data or have no RDAP at all; rdapError explains why. DNS, SSL and HTTPS checks still work for every domain.

Can it check whether domains are available to register? Yes, indirectly: registered: false from the registry indicates an unregistered domain.

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Plot Point Technologies is not affiliated with IANA, any domain registry or registrar, Google or Cloudflare.

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