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

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

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

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

accept-encoding

connection: close
transfer-encoding: chunked
vary: accept-encoding

Caching Headers

Age

Caching

1194

Last-Modified

Caching

Fri, 01 May 2026 17:09:27 GMT

age: 1194
last-modified: Fri, 01 May 2026 17:09:27 GMT

Content Headers

Content-Type

Content

text/html; charset=utf-8

content-type: text/html; charset=utf-8

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: _cfuvid=55IUD6rMktBvtU21STpcPTBSsSxERkBmY_y1FXkkxMw-1777656561.571115-1.0.1.1-09k21vfyIB2SHNtk1WZkT2M6BzE7JUqNgWGlpadPMic; HttpOnly; SameSite=None; Secure; Path=/; Domain=www.userflow.com

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9f508205bdfd2054-IAD

Date

Other

Fri, 01 May 2026 17:29:21 GMT

Nel

Other

Report-To Group cf-nel max-age: 1w

success: 0.0%

O2o-Cache-Status

Other

HIT

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=nDJq%2Fiuwi0lthXE17DPIXn8JwQ2p%2FsHF20%2FfW1pF7IfJkN5%2FaPFPbOe9wVl9NKkdadDGuxAKDwXWAeiv44KBGCGf%2FMpGKPauD%2BPZ6SOjWriHBjQP7gp9AC%2BIPNOftEat2vI%3D

Surrogate-Control

Other

max-age=432000

Surrogate-Key

Other

www.userflow.com 69a017c4446c4234a8ae2c8c pageId:69a017c6446c4234a8ae2d76 69c4eb62a158d241540ff5c3

X-Lambda-Id

Other

739c994d-6c00-42fa-948e-4e5c389ce794

X-Wf-Region

Other

us-east-1

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 9f508205bdfd2054-IAD
date: Fri, 01 May 2026 17:29:21 GMT
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
o2o-cache-status: HIT
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=nDJq%2Fiuwi0lthXE17DPIXn8JwQ2p%2FsHF20%2FfW1pF7IfJkN5%2FaPFPbOe9wVl9NKkdadDGuxAKDwXWAeiv44KBGCGf%2FMpGKPauD%2BPZ6SOjWriHBjQP7gp9AC%2BIPNOftEat2vI%3D"}]}
surrogate-control: max-age=432000
surrogate-key: www.userflow.com 69a017c4446c4234a8ae2c8c pageId:69a017c6446c4234a8ae2d76 69c4eb62a158d241540ff5c3
x-lambda-id: 739c994d-6c00-42fa-948e-4e5c389ce794
x-wf-region: us-east-1

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching