HTTP Headers Analysis for https://costkey.dev

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31556926

Content-Security-Policy

Weak

frame-ancestors Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Present

geolocation=(), microphone=(), camera=(); +1 more

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Significantly strengthen CSP directives

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

x-fh-requested-host, accept-encoding

accept-ranges: bytes
connection: close
vary: x-fh-requested-host, accept-encoding

Caching Headers

Cache-Control

Caching

max-age=3600

Etag

Caching

"c5ae95c0232869773f74af0b8952e6d4f2b863b667be335d6dae093c374ba9a4"

Last-Modified

Caching

Fri, 24 Apr 2026 15:29:45 GMT

cache-control: max-age=3600
etag: "c5ae95c0232869773f74af0b8952e6d4f2b863b667be335d6dae093c374ba9a4"
last-modified: Fri, 24 Apr 2026 15:29:45 GMT

Content Headers

Content-Length

Content

94437

Content-Type

Content

text/html; charset=utf-8

content-length: 94437
content-type: text/html; charset=utf-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400

Date

Other

Fri, 08 May 2026 22:37:09 GMT

X-Cache

Other

HIT

X-Cache-Hits

Other

0

X-Served-By

Other

cache-bos-kbos510023-BOS

X-Timer

Other

S1778279830.781999,VS0,VE1

alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
date: Fri, 08 May 2026 22:37:09 GMT
x-cache: HIT
x-cache-hits: 0
x-served-by: cache-bos-kbos510023-BOS
x-timer: S1778279830.781999,VS0,VE1

Recommendations

Enable compression (gzip/brotli) to improve performance