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Companies / US

Cal.com

cal.com9 facts from HTTP + DNSLast verified 17 Sept 2026

Cal.com sits behind Cloudflare and is built with Framer. Its mail goes through Google Workspace.

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CDN & edge

  • Confidence 95 of 100, certainCloudflare

DNS

  • Confidence 95 of 100, certainCloudflare DNS

CMS & site builders

  • Confidence 95 of 100, certainFramer

Analytics

  • Confidence 90 of 100, certainGoogle Tag Manager
  • Confidence 90 of 100, certainPostHog

Email

MX records show the mailbox; SPF shows services allowed to send

  • Confidence 95 of 100, certainGoogle Workspace
  • Confidence 80 of 100, strongSendGrid

Workspace accounts

Verification records: an account exists, usage unknown

  • Confidence 70 of 100, likelyMicrosoft 365
  • Confidence 70 of 100, likelyOpenAI

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