HTTP Headers Analysis for https://mail.cimulate.ai

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

Weak

upgrade-insecure-requests 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
• Significantly strengthen CSP directives
• 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

connection: close
transfer-encoding: chunked

Caching Headers

No caching headers found

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: __cf_bm=MKfxY36FaKnekLpLbyksJxGADHolOVFtREXnT0JwFns-1774946333-1.0.1.1-A37CRp861ncJsFZUMh3C7uJRqn_7HV9iUNy4c3dpgQ8LcR7ubE82GNvsHWxmCYi8MvJnw3ybTmtLlon4U0kfWUvjSrUTgQX2SOi6LnH6xHo; path=/; expires=Tue, 31-Mar-26 09:08:53 GMT; domain=.mail.cimulate.ai; HttpOnly; Secure; SameSite=None
_cfuvid=7tw.k6gGBIaJEIeJLVC7kL_D278zLFrev9rdR3tgg2E-1774946333591-0.0.1.1-604800000; path=/; domain=.mail.cimulate.ai; HttpOnly; Secure; SameSite=None

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Ray

Other

9e4e0a55ec5ce642-IAD

Date

Other

Tue, 31 Mar 2026 08:38:53 GMT

Nel

Other

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

success: 1.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=jeFCO%2FrTBM2c%2FkcsdRZZNlsNOMrh3Fz5wbQdzMxYNVKhhFfsuNaB71rCtGD50K4Q%2FG0%2Fj%2FxrUDbnN6ny08sSc2Uj4nHXQbPv97nf%2BAL3YnvjgAmkS2cF1fIerVCyiSnr9Y0%3D

X-Hs-Cfworker-Meta

Other

{"resolver":"NotFoundResolver"}

X-Hs-Portal-Id

Other

40659087

X-Hs-Prerendered-Error

Other

Thu, 05 Mar 2026 03:37:14 GMT

X-Hs-Reason

Other

404 predicted at edge

alt-svc: h3=":443"; ma=86400
cf-ray: 9e4e0a55ec5ce642-IAD
date: Tue, 31 Mar 2026 08:38:53 GMT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=jeFCO%2FrTBM2c%2FkcsdRZZNlsNOMrh3Fz5wbQdzMxYNVKhhFfsuNaB71rCtGD50K4Q%2FG0%2Fj%2FxrUDbnN6ny08sSc2Uj4nHXQbPv97nf%2BAL3YnvjgAmkS2cF1fIerVCyiSnr9Y0%3D"}],"group":"cf-nel","max_age":604800}
x-hs-cfworker-meta: {"resolver":"NotFoundResolver"}
x-hs-portal-id: 40659087
x-hs-prerendered-error: Thu, 05 Mar 2026 03:37:14 GMT
x-hs-reason: 404 predicted at edge

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching