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Companies / US

Calendly

calendly.com15 facts from HTTP + DNS + jobsLast verified 17 Sept 202610 job posts read on greenhouse

Calendly sits behind Amazon CloudFront and Cloudflare and is built with Astro. Its mail goes through Google Workspace.

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Hosting

  • Confidence 50 of 100, likelyGoogle Cloud

CDN & edge

  • Confidence 95 of 100, certainAmazon CloudFront
  • Confidence 95 of 100, certainCloudflare

DNS

  • Confidence 95 of 100, certainCloudflare DNS

Infrastructure

Mostly from job postings

  • Confidence 50 of 100, likelyKubernetes

Frameworks

  • Confidence 90 of 100, certainAstro

Analytics

  • Confidence 90 of 100, certainGoogle Tag Manager

Payments

  • Confidence 70 of 100, likelyStripe

Email

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

  • Confidence 95 of 100, certainGoogle Workspace

Marketing

  • Confidence 80 of 100, strongMarketo

Workspace accounts

Verification records: an account exists, usage unknown

  • Confidence 75 of 100, strongAtlassian
  • Confidence 75 of 100, strongDocuSign
  • Confidence 75 of 100, strongSlack
  • Confidence 70 of 100, likelyMicrosoft 365
  • Confidence 70 of 100, likelyOpenAI

Hints

Named in a single job post. Not a claim yet.

  • Confidence 35 of 100, a hintDatadog
  • Confidence 35 of 100, a hintGo
  • Confidence 35 of 100, a hintGraphQL
  • Confidence 35 of 100, a hintNode.js
  • Confidence 35 of 100, a hintPostgreSQL
  • Confidence 35 of 100, a hintReact
  • Confidence 35 of 100, a hintRedis
  • Confidence 35 of 100, a hintRuby
  • Confidence 35 of 100, a hintRuby on Rails
  • Confidence 35 of 100, a hintTypeScript

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