HTTP Headers Analysis for https://mail.nolock.dev

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=64072000; includeSubDomains; preload

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

SAMEORIGIN

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 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

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

Caching Headers

Cache-Control

Caching

private,no-cache,no-store,max-age=0,must-revalidate

Expires

Caching

Thu, 01 Jan 1970 00:00:00 GMT

Pragma

Caching

no-cache

cache-control: private,no-cache,no-store,max-age=0,must-revalidate
expires: Thu, 01 Jan 1970 00:00:00 GMT
pragma: no-cache

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: zalb_ad62b78f7f=f77d659b2d1f0e491a7f3bf11b3322a6; Path=/; Secure; HttpOnly
zmcsr=c12297ca-93ad-4d29-9863-c3351024b7d7;path=/;SameSite=None;Secure;priority=high
_zcsr_tmp=c12297ca-93ad-4d29-9863-c3351024b7d7;path=/;SameSite=Strict;Secure;priority=high
JSESSIONID=13A062EFA933AEEFB935636FD052D287; Path=/; Secure; HttpOnly

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

BYPASS

Cf-Ray

Other

9d4093504a52d707-IAD

Date

Other

Thu, 26 Feb 2026 15:46:28 GMT

Nel

Other

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

success: 0.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=QbZ9dgbMsWxFoWCk79FVp3FgGxrTAeP79E%2F9OD91SysfyXQxAvN4GFmKMi%2BFZkCEBw3dV7Vh8BGngO5xFtSK5SSDHJXlo2p5nfHQS2%2BBPg%3D%3D

Server-Timing

Other

cfCacheStatus;desc="BYPASS", cfEdge;dur=315,cfOrigin;dur=18

alt-svc: h3=":443"; ma=86400
cf-cache-status: BYPASS
cf-ray: 9d4093504a52d707-IAD
date: Thu, 26 Feb 2026 15:46:28 GMT
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=QbZ9dgbMsWxFoWCk79FVp3FgGxrTAeP79E%2F9OD91SysfyXQxAvN4GFmKMi%2BFZkCEBw3dV7Vh8BGngO5xFtSK5SSDHJXlo2p5nfHQS2%2BBPg%3D%3D"}]}
server-timing: cfCacheStatus;desc="BYPASS", cfEdge;dur=315,cfOrigin;dur=18

Recommendations

Enable compression (gzip/brotli) to improve performance