HTTP Headers Analysis for https://commons.systems

Detected Technologies from Headers

See all in URL Inspect 12

Cloudflare NEL Monitoring

Cloudflare CDN

Cloudflare Web Analytics

Firebase

GitHub

Google Analytics

Google API JS Client

Google Fonts

Google Search

Google Static File Front End

Google Tag Manager

Google Cloud

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Good

default-src; script-src; style-src; +8 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Strengthen CSP by removing 'unsafe-eval'
• 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

x-fh-requested-host, accept-encoding

connection: close
transfer-encoding: chunked
vary: x-fh-requested-host, accept-encoding

Caching Headers

Cache-Control

Caching

max-age=3600

Last-Modified

Caching

Sat, 02 May 2026 20:16:14 GMT

cache-control: max-age=3600
last-modified: Sat, 02 May 2026 20:16:14 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

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9f689e969d81ef9d-EWR

Date

Other

Mon, 04 May 2026 15:43:09 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=HluNCFYugdOk%2Bl0PaAl%2FANdLi%2FAowqth%2Bmy5QV%2BR8horDrvoDAR4PI0UahSyeNt36180V8VCEciz0DaLCjipVPKk6FQUsonIEazbYfgXDLS1Pik9Xwl%2FH203dDk8hJInR0s%3D

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=10,cfOrigin;dur=11

X-Cache

Other

HIT

X-Cache-Hits

Other

0

X-Served-By

Other

cache-lga21972-LGA

X-Timer

Other

S1777909390.875354,VS0,VE2

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 9f689e969d81ef9d-EWR
date: Mon, 04 May 2026 15:43:09 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=HluNCFYugdOk%2Bl0PaAl%2FANdLi%2FAowqth%2Bmy5QV%2BR8horDrvoDAR4PI0UahSyeNt36180V8VCEciz0DaLCjipVPKk6FQUsonIEazbYfgXDLS1Pik9Xwl%2FH203dDk8hJInR0s%3D"}]}
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=10,cfOrigin;dur=11
x-cache: HIT
x-cache-hits: 0
x-served-by: cache-lga21972-LGA
x-timer: S1777909390.875354,VS0,VE2

Recommendations

Enable compression (gzip/brotli) to improve performance