Profile any domain's email vendor, DNS setup, and SaaS stack from public DNS alone.

MX provider, SPF/DKIM/DMARC posture, nameserver host, CDN, and 25+ SaaS signals via TXT verification records. Pure DNS over HTTPS. No login. Sub-second per domain.

Try it free, scale when you're ready.

$0.01 per domain · free preview on the first domain Open on Apify →

What it does

DNS is the cleanest, fastest technographic source on the internet. Every company's choice of email vendor, identity provider, CRM, and helpdesk leaves a verification TXT record in their DNS. You don't need to scrape, you don't need to log in, you just query.

The DNS + Email Footprint Profiler runs a parallel DNS over HTTPS query for MX, NS, TXT, A, and _dmarc records, plus probes the eight most common DKIM selectors. It classifies the MX vendor into Google Workspace, Microsoft 365, Proofpoint, Mimecast, Cisco, Zoho, Fastmail, ProtonMail, Amazon SES, SendGrid, Postmark, Mailgun, or self-hosted. It classifies the nameserver into Cloudflare, Route 53, GoDaddy, Namecheap, DNSimple, Google Cloud DNS, Azure DNS, DigitalOcean, NS1, or Dyn. It extracts SPF posture, DMARC policy and percentage, and DKIM selector presence. And it scans TXT records for 25+ SaaS verification signals (Atlassian, Salesforce, HubSpot, Stripe, Adobe, Zoom, Webex, AWS SES, SendGrid, Postmark, Mailgun, Klaviyo, Intercom, Zendesk, Notion, Linear, GitHub Pages, Vercel, Netlify, and more).

All from public DNS. No website needs to load, no JavaScript needs to run, no rate limits to worry about.

Who it's for

Sales targeting

Filter your TAM down to companies on Google Workspace vs Microsoft 365. Or to companies using SendGrid (your competitor). Or to companies that have signed up for Atlassian but not your product yet.

Security teams

Audit a portfolio for SPF/DMARC posture in seconds. Surface every domain without DMARC enforcement so you can prioritise outreach.

M&A diligence

Map the target company's vendor stack from public records before the data room opens.

FinOps consultants

Build a vendor map for new clients in one query before the first discovery call.

Example output

{
  "domain": "stripe.com",
  "mx_provider": "Google Workspace",
  "spf_pass": true,
  "dmarc_policy": "reject",
  "dmarc_percent": 100,
  "ns_provider": "Cloudflare",
  "cdn_provider": "Cloudflare",
  "saas_signals": [
    "AWS SES",
    "Atlassian",
    "SendGrid",
    "Stripe verification"
  ]
}

Pipeline integration

Run DNS + Email Footprint on your prospect list, filter to the email-vendor or SaaS signal that matches your ICP, pipe the matches into Email Finder & Verifier for named contacts, then into AI Sales Personalizer to reference the exact stack in your opener.

Related scrapers

Ready to run it on your list?

$0.01 per domain · pay only for results that land Open on Apify →

Keywords

find companies using google workspace find companies using microsoft 365 mx record lookup bulk dmarc check api spf record audit find companies using sendgrid find companies using atlassian saas detection from dns dns footprint api bulk dmarc scanner email security audit domain technographic

Built by Emily Ward · All 25 scrapers · Back to AI Sales Personalizer · Pricing