HTTP Headers Analysis for https://docs.backdropcms.org

Detected Technologies from Headers

See all in URL Inspect 1

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=300

Content-Security-Policy

Missing

Not configured 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
• Add Content-Security-Policy header to prevent XSS attacks
• 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

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-store

cache-control: private, no-store

Content Headers

No content headers found

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Sat, 02 May 2026 00:02:17 GMT

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Served-By

Other

cache-nyc-kteb1890042-NYC, cache-nyc-kteb1890096-NYC

X-Timer

Other

S1777680137.190400,VS0,VE31

date: Sat, 02 May 2026 00:02:17 GMT
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-served-by: cache-nyc-kteb1890042-NYC, cache-nyc-kteb1890096-NYC
x-timer: S1777680137.190400,VS0,VE31

Recommendations

Enable compression (gzip/brotli) to improve performance