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What Technology Does Calendly Use?

40 technologies detected on calendly.com

Calendly uses 40 technologies on calendly.com, including Atlassian, DocuSign, HubSpot. Origin infrastructure appears to be AWS, with Cloudflare CDN and Cloudflare edge signals. Storage signals include Amazon S3. Infrastructure complexity: medium.

Business modelb2b saas
SaaS score93/100 · likely saas
Complexitymedium
NetworkCloudflare, Inc. (AS13335)

Devops

Atlassian
Confirmed · 95%

Saas

DocuSign
Confirmed · 95%
HubSpot
Confirmed · 95%
Salesforce Marketing Cloud Account Engagement
Confirmed · 95%
Stripe
Confirmed · 95%

Cookie Compliance

OneTrust
Confirmed · 95%

Crm

Salesforce
Confirmed · 93%

Email Infrastructure

Google Workspace
Confirmed · 90%
Amazon SES
Probable · 72%
Mailchimp
Probable · 72%
Marketo Email
Probable · 65%

Javascript Framework

React
Confirmed · 90%
nextjs
Probable · 70%

Cdn

Amazon CloudFront
Confirmed · 86%

Security

Cloudflare
Confirmed · 86%

Advertising

DoubleClick
Probable · 78%
LinkedIn Insight Tag
Probable · 76%

Analytics

Google Analytics
Probable · 76%
clearbit
Probable · 70%

Tag Manager

Google Tag Manager
Probable · 76%

Javascript Library

jQuery
Probable · 70%

Web Framework

Web App Manifest
Probable · 66%

Possible Signals

angular
Weak · 60%
Calendly
Weak · 60%
fullstory
Weak · 60%
google_ads
Weak · 60%
hubspot_marketing
Weak · 60%
LinkedIn Ads
Weak · 60%
marketo
Weak · 60%
Zendesk
Weak · 58%
axios
Weak · 50%
do_not_sell
Weak · 50%
google_analytics4
Weak · 50%
gsap
Weak · 50%
intersection_observer
Weak · 50%
recaptcha
Weak · 50%
us_privacy_api
Weak · 50%
zoominfo
Weak · 50%
Amazon S3
Weak · 40%
HSTS
Weak · 40%

Commercial Signals

✓ Pricing page
✓ Contact sales
✓ Docs / API docs
✓ Public API
✓ Careers page
✗ E-commerce

GTM Stack

✓ CRM
✓ Marketing automation
✓ Analytics
✓ Advertising
✓ Customer support tool
✓ Scheduling tool
✓ Email marketing

Site Signals

✓ Viewport Meta (mobile)
✓ Apple App Link (verified link)
✓ Google Play Store Link (verified link)
✓ OneTrust Domain Verification (verification)
✓ Web App Manifest (mobile)
✓ Apple Domain Verification (verification)
✓ Atlassian Domain Verification (verification)
✓ DocuSign Domain Verification (verification)
✓ Facebook Domain Verification (verification)
✓ Google Site Verification (verification)
✓ HubSpot Domain Verification (verification)
✓ Microsoft Azure DNS (verification)

Presence

✓ en html lang
✓ ag locale path
✓ ao locale path
✓ as locale path
✓ bf locale path
✓ bv locale path
✓ ce locale path
✓ cf locale path
✓ Apple app association
✓ Android asset links
✓ App Store link
✓ Google Play link

Infrastructure

Origin
AWS
CDN
Cloudflare
Edge
Cloudflare
Storage
Amazon S3
API endpoint
https://api.calendly.com
Staging env
Detected
HSTS
Enabled · max-age 31536000 · includeSubDomains · preload
security.txt
Present · Hiring
llms.txt
Present

Provider Signals

Cloudflare DNS dns
high · 95% nameserver records
Amazon CloudFront cdn
high · 90% cloudfront signal, cloudfront asset url, technology detection
Google Workspace email
high · 90% google mx or spf, google spf, mx records
AWS origin
high · 90% hosting inference
Cloudflare cdn
high · 86% cloudflare headers, cdn inference
Fastly cdn
high · 86% fastly edge signal
Cloudflare edge
high · 86% cloudflare headers
HSTS IncludeSubDomains Preload security
high · 86% strict transport security header
Cloudflare, Inc. (AS13335) network
high · 85% asn lookup
Netlify origin
medium · 84% netlify asset url
Vercel origin
medium · 84% vercel asset url
Cloudflare Workers origin
medium · 82% cloudflare workers signal
HSTS security
medium · 80% strict transport security header
Amazon S3 storage
medium · 80% technology detection
DMARC security
medium · 78% dmarc record
SPF security
medium · 78% spf record
Apple Domain Verification verification
medium · 78% apple domain verification txt
Atlassian Domain Verification verification
medium · 78% atlassian domain verification txt
DocuSign Domain Verification verification
medium · 78% docusign domain verification txt
Facebook Domain Verification verification
medium · 78% facebook domain verification txt
Google Site Verification verification
medium · 78% google site verification txt
HubSpot Domain Verification verification
medium · 78% hubspot domain verification txt
Microsoft Azure DNS verification
medium · 78% microsoft domain verification txt
Miro Domain Verification verification
medium · 78% miro domain verification txt
Stripe Domain Verification verification
medium · 78% stripe domain verification txt
Marketo Email email
medium · 72% spf record
DKIM google security
medium · 72% dkim selector
DKIM k2 security
medium · 72% dkim selector
DKIM m1 security
medium · 72% dkim selector

DNS & Email

Nameservers
Cloudflare DNS
Email provider
Google Workspace
Email senders
Google Workspace, Marketo Email
SPF
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.google.com include:mktomail.com ~all
DMARC policy
quarantine
DKIM selectors
google, k2, m1
DKIM providers
Google Workspace, Mailchimp, Amazon SES

Verification & Apps

✓ OneTrust Domain Verification
✓ Apple Domain Verification
✓ Atlassian Domain Verification
✓ DocuSign Domain Verification
✓ Facebook Domain Verification
✓ Google Site Verification
✓ HubSpot Domain Verification
✓ Microsoft Azure DNS
✓ Miro Domain Verification
✓ Stripe Domain Verification
✓ Apple app association
✓ Android asset links
✓ App Store link
✓ Google Play link

Subdomains (17)

support.calendly.com Support system
docs.calendly.com Documentation
status.calendly.com Status page
blog.calendly.com Blog platform
api.calendly.com API endpoint
assets.calendly.com Asset hosting
staging.calendly.com Staging environment
mail.calendly.com Email hosting
www.calendly.com
help.calendly.com
go.calendly.com
email.calendly.com
careers.calendly.com
jobs.calendly.com
community.calendly.com
login.calendly.com
auth.calendly.com

Global Presence

AGAOASBFBVCACECFCO.NZCO.UKCO.ZACVDCDEDFDODTEAEEELESEWEXEYFEFMFRFUFVFWGAGNGRGSHAHBHCHDHHHRIAINIQIUIVJOJQJRJUJXKCKOLBLELFLGLHLNLQLUMEMXMZNCNDNHNKNLNMNTNZOJOSOUPCPNPSPTPVPXPZQBQEQJQLQNQOQPQTQXRKRSRUSBSDSPSUTBTDTMTTTVUAUCUDUFUHUPUSVEVFVJVNVQVTVWVXWEWKWUXEXGXKXLXUXVXZYFYIYLYMYNZFZGZUZV

Social

Detected by scanning calendly.com — Last checked: June 2, 2026

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