HTTP Headers Analysis for https://www.calendly.com

Detected Technologies from Headers

See all in URL Inspect 3

AWS CloudFront

Amazon S3

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Origin

accept-ranges: bytes
connection: close
transfer-encoding: chunked
vary: Origin

Caching Headers

Cache-Control

Caching

no-cache

Last-Modified

Caching

Fri, 10 Apr 2026 22:29:53 GMT

cache-control: no-cache
last-modified: Fri, 10 Apr 2026 22:29:53 GMT

Content Headers

Content-Type

Content

text/html

content-type: text/html

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: country=US; path=/; Secure; SameSite=Strict
CALENDLY_AUTHENTICATED_USER_STATUS=false; path=/; Secure; SameSite=Strict
cal_anonymous_id=80c3c15a-e439-4bcf-9d64-26a28b673a39; path=/; max-age=31536000; Secure; SameSite=Strict
__cf_bm=ciUbC2j4.h_SE_DAod9OaWlYCcSGoMDWZO9BVh7gpiE-1775920540.7017965-1.0.1.1-ptYfXybbPNZMljxewHBydIv..K7KSEknmcxcfBSn4eUIDYbhNgOfioGqfCZfi8h0H1Ro4AnQqGzjodEoVVKQPuSw6IQVS4SHny6mUCgzraxkw2nAyFJLx.I5swXsvgTQ; HttpOnly; Secure; Path=/; Domain=calendly.com; Expires=Sat, 11 Apr 2026 15:45:40 GMT
_cfuvid=z7E5ooTkCc6yNjsqwWtcP738kIWCtBlrbcb6Q5QZ6nY-1775920540.7017965-1.0.1.1-YTQRW2CxK2e0hrS.O0cKtcJUkq4SiXcjiiiOLAW8iJU; HttpOnly; SameSite=None; Secure; Path=/; Domain=calendly.com

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9eaaf2b36fd92058-IAD

Date

Other

Sat, 11 Apr 2026 15:15:40 GMT

Via

Other

1.1 f958a7ff273f1fbe2d4c89cc6e059db8.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

_KJxJrWHfl2Tcq4tmZDuHnYZZLFzKj9E-hAEhA7uwZibQz7Q40AgkA==

X-Amz-Cf-Pop

Other

IAD61-P11

X-Amz-Server-Side-Encryption

Other

AES256

X-Amz-Version-Id

Other

G4B6UgCsZOjcaV17MjIGizrAUGSznaAl

X-Cache

Other

RefreshHit from cloudfront

X-Country-Code

Other

US

cf-cache-status: DYNAMIC
cf-ray: 9eaaf2b36fd92058-IAD
date: Sat, 11 Apr 2026 15:15:40 GMT
via: 1.1 f958a7ff273f1fbe2d4c89cc6e059db8.cloudfront.net (CloudFront)
x-amz-cf-id: _KJxJrWHfl2Tcq4tmZDuHnYZZLFzKj9E-hAEhA7uwZibQz7Q40AgkA==
x-amz-cf-pop: IAD61-P11
x-amz-server-side-encryption: AES256
x-amz-version-id: G4B6UgCsZOjcaV17MjIGizrAUGSznaAl
x-cache: RefreshHit from cloudfront
x-country-code: US

Recommendations

Enable compression (gzip/brotli) to improve performance