Bulk Domain WHOIS, DNS, MX/SPF/DMARC & SSL Checker

🔥 Launch Sale: 90% OFF for the first week! Every price below is already the regular, below-market rate, and launch week takes 90% off on top.

Check thousands of domains at once: RDAP/WHOIS registrar, creation and expiry dates, domain age, nameservers, A/AAAA/MX/TXT/CAA records, email provider, SPF/DMARC/DKIM with an email-security score, verified SaaS tools and SSL certificate expiry. No API key.

What can Bulk Domain WHOIS, DNS, MX/SPF/DMARC & SSL Checker do?

Paste domains. For each one we ask the registry's own RDAP server (the modern, structured WHOIS, found via the IANA bootstrap), resolve DNS over HTTPS, read the email-authentication records, spot SaaS verification tokens and open a TLS connection to read the certificate.

What you get	Features
🪪 Registrar, created / updated / expiry dates, age, DNSSEC	🏛️ Registry RDAP via IANA bootstrap: official, structured
🌐 A, AAAA, NS, MX, TXT, CAA, www CNAME, DNS provider	🔒 Live TLS handshake for SSL issuer and days left
✉️ Email provider, SPF, DMARC policy, DKIM, 0-100 score	🧩 Verified SaaS tools from TXT tokens (Google, Microsoft, Atlassian, OpenAI...)
⏰ Days until domain and certificate expiry	📤 CSV, Excel, JSON, API, Zapier, Make, n8n

Who this is for

• Lead qualification: company email provider, stack and domain age
• Deliverability and security audits of SPF/DMARC/DKIM
• Domain portfolio and certificate expiry monitoring
• Brand protection and lookalike-domain triage

What you get back

Field	Type	What it is
domain	string	domain
registrar	string/null	registrar
created_at	string/null	created at
expires_at	string/null	expires at
domain_age_days	integer/null	domain age days
dns_provider	string/null	dns provider
email_provider	string/null	email provider
spf_all_mechanism	string/null	spf all mechanism
dmarc_policy	string/null	dmarc policy
email_security_score	integer	email security score
verified_services	array of string	verified services
ssl_issuer	string/null	ssl issuer
ssl_days_left	integer/null	ssl days left
status	string	status

Full rows carry 49 fields; see the Output tab for the complete schema. A sample (trimmed) row:

{
  "domain": "stripe.com",
  "registrar": "SafeNames Ltd.",
  "dmarc_policy": "reject",
  "email_security_score": 95
}

What you need to provide

Field	Type	Required	What it does	Sample
domains	array	Yes	One per line. Bare domains, URLs or even email addresses work: stripe.com, https://www.python.org/about, jane@apify.com.	["stripe.com", "python.org", "apify.com"]
checkSsl	boolean	No	TLS handshake on port 443 for issuer, expiry date and days left.	true
checkDkim	boolean	No	Look up 10 common DKIM selectors (google, selector1, s1, k1...). Adds a few DNS queries per domain.	true
maxConcurrency	integer	No	How many domains to check at once.	8

Quick start

1. Click Try for free.
2. Press Start. The sample input finishes in well under a minute with no keys or accounts.
3. Replace the sample with your own list and run again.
4. Download the dataset as CSV, Excel or JSON, or pull it from the API.

Pricing

Pay per result, no subscription. Launch Sale: 90% OFF for the first week!

• domain-enriched: $0.002 (domain enriched, $2 per 1,000). One domain that returned RDAP or DNS data. Invalid and non-existent domains are free.
• For comparison: $0.005-0.02 per domain on WHOIS/DNS APIs.
• Set a max cost per run in the run options and the run stops cleanly when it hits it.
• Normal Apify platform usage (compute, optional proxy) applies.

Limits and honest notes

• A few ccTLDs have no public RDAP server; you still get DNS, email and SSL data and rdap_error: tld_has_no_rdap.
• Registrant details are usually redacted for privacy (GDPR); we flag registrant_redacted instead of guessing.
• DKIM is probed on common selectors only; custom selectors cannot be discovered from DNS.
• All collection is done by this Actor itself over public sources; it never calls other paid Actors.

Code and API

Same input as the Console sample:

{
  "domains": [
    "stripe.com",
    "python.org",
    "apify.com"
  ]
}

curl -X POST "https://api.apify.com/v2/acts/physealabs~domain-whois-dns-enricher/run-sync-get-dataset-items?token=$APIFY_TOKEN" \
  -H "Content-Type: application/json" -d @input.json

from apify_client import ApifyClient
items = ApifyClient("YOUR_APIFY_TOKEN").actor("physealabs/domain-whois-dns-enricher").call(run_input={"domains": ["stripe.com", "python.org", "apify.com"]})

It also works from Zapier, Make, n8n and Apify schedules.

About

Built by Physea Labs · Liminal: the same grounded-research engine that powers Liminal's checked answers, packaged as a plain scraper. No AI guesswork in the data, every row is traceable to its public source.

Need the next step, like scoring these results, deciding which accounts to pursue or writing a cited brief? Liminal by Physea Labs does that on top of data like this. Questions or a missing field? Open an issue on this Actor and we usually ship fixes within days.