HTTP Headers Analysis for https://app-staging.readcube.com

Detected Technologies from Headers

See all in URL Inspect 2

AWS CloudFront

Amazon S3

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=86400

Content-Security-Policy

Weak

frame-ancestors 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

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

accept-ranges: bytes
connection: close

Caching Headers

Cache-Control

Caching

no-store

Etag

Caching

"2a67c04e736ec6a3876188ea20224f7a"

Last-Modified

Caching

Thu, 01 Oct 2026 14:42:40 GMT

cache-control: no-store
etag: "2a67c04e736ec6a3876188ea20224f7a"
last-modified: Thu, 01 Oct 2026 14:42:40 GMT

Content Headers

Content-Length

Content

23133

Content-Type

Content

text/html

content-length: 23133
content-type: text/html

Server Headers

Server

AmazonS3

server: AmazonS3

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Date

Other

Sat, 03 Oct 2026 20:04:56 GMT

Via

Other

1.1 5d507257661db55dbda3e53dd8b38dce.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

KkMpk8armNuuEQFb3n50UttED1Pc0t180SYjt9EtEvs3k5sRW_ertw==

X-Amz-Cf-Pop

Other

IAD61-P12

X-Cache

Other

Miss from cloudfront

alt-svc: h3=":443"; ma=86400
date: Sat, 03 Oct 2026 20:04:56 GMT
via: 1.1 5d507257661db55dbda3e53dd8b38dce.cloudfront.net (CloudFront)
x-amz-cf-id: KkMpk8armNuuEQFb3n50UttED1Pc0t180SYjt9EtEvs3k5sRW_ertw==
x-amz-cf-pop: IAD61-P12
x-cache: Miss from cloudfront

Recommendations

Enable compression (gzip/brotli) to improve performance