What technology does cal.com use?

We did not detect any specific technologies for cal.com in the latest scan.

Is cal.com secure (HTTPS)?

Yes. cal.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 14, 2026.

Hosting provider information for cal.com is not available yet.

What is cal.com's SEO score?

cal.com scored 80/100 for SEO in the latest analysis (great).

What is cal.com's overall website score?

cal.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.

Has cal.com's score changed over time?

cal.com's overall score has declined by 3 points (from 85 to 82) since Jul 25, 2026.

cal.com

Cal.com | Scheduling Software for Online Bookings

Last scanned Aug 1, 2026, 3:00 AM · 9 views

Overall score

Great

Summary

A fully customizable scheduling software for individuals, businesses taking calls and developers building scheduling platforms where users meet users. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance fair (70/100). Top issue: No structured data (JSON-LD) found.

A fully customizable scheduling software for individuals, businesses taking calls and developers building scheduling platforms where users meet users.

Top issues to fix

7 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
Heavy page (2.2 MB)
Performance
Aim for under 2 MB: compress images and split large JavaScript bundles.

+1 more issue — details in the sections below.

SEO

3 issue(s) found

Performance

155 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 25, 2026

Overall: 82
SEO: 80
Security: 80
Performance: 70
Accessibility: 100

Organization

Company details published in this site's own structured data.

A fully customizable scheduling software for individuals, businesses taking calls and developers building scheduling platforms where users meet users.

Contact

Email, phone, and address published on this site's own pages.

Email: support@cal.com

Meta tags

Title: Cal.com | Scheduling Software for Online Bookings
Description: A fully customizable scheduling software for individuals, businesses taking calls and developers building scheduling platforms where users meet users.
Canonical: https://cal.com/
Language: en
Charset: utf-8
Viewport: width=device-width
Robots meta: max-image-preview:large
Manifest: https://api.jsonbin.io/v3/b/69739405ae596e708ff0394c?meta=false

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: cal.com
Valid from: Jun 16, 2026
Valid to: Sep 14, 2026
Days until expiry: 44
SAN domains: cal.com, external.cal.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 20 · H3 21

Links

57 internal · 16 external · 20 broken

Images

183 total · 0 missing alt

Scripts / Styles

22 scripts · 0 stylesheets

JS / CSS size

32.4 KB · 443 KB

Page size

2.2 MB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://cal.com
Final URL: https://cal.com
HTTP status: 200
HTTP version: HTTP/2
Response time: 109 ms
HTML size: 2.2 MB
Redirect chain: https://cal.com

See something wrong on this report? Request a correction

Frequently asked questions

What technology does cal.com use?: We did not detect any specific technologies for cal.com in the latest scan.
Is cal.com secure (HTTPS)?: Yes. cal.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 14, 2026.
Who hosts cal.com?: Hosting provider information for cal.com is not available yet.
What is cal.com's SEO score?: cal.com scored 80/100 for SEO in the latest analysis (great).
What is cal.com's overall website score?: cal.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
Has cal.com's score changed over time?: cal.com's overall score has declined by 3 points (from 85 to 82) since Jul 25, 2026.