HTTP Headers Analysis for https://backdropcms.org

Detected Technologies from Headers

See all in URL Inspect 3

Backdrop CMS

Nginx

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

Good

SAMEORIGIN

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Good

strict-origin

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-Content-Type-Options: nosniff
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

Accept-Encoding, Cookie, Accept-Encoding

accept-ranges: bytes
connection: close
vary: Accept-Encoding, Cookie, Accept-Encoding

Caching Headers

Age

Caching

0

Cache-Control

Caching

public, max-age=300

Etag

Caching

"1777440694"

Expires

Caching

Fri, 16 Jan 2015 07:50:00 GMT

Last-Modified

Caching

Wed, 29 Apr 2026 05:31:34 +0000

age: 0
cache-control: public, max-age=300
etag: "1777440694"
expires: Fri, 16 Jan 2015 07:50:00 GMT
last-modified: Wed, 29 Apr 2026 05:31:34 +0000

Content Headers

Content-Language

Content

en

Content-Length

Content

34770

Content-Type

Content

text/html; charset=utf-8

content-language: en
content-length: 34770
content-type: text/html; charset=utf-8

Server Headers

Server

nginx/1.18.0

server: nginx/1.18.0

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Wed, 29 Apr 2026 05:35:19 GMT

Link

Other

URL https://backdropcms.org/

rel=canonical

URL https://backdropcms.org/

rel=shortlink

Via

Other

1.1 varnish

X-Backdrop-Cache

Other

HIT

X-Cache

Other

MISS, MISS

X-Cache-Hits

Other

0, 0

X-Generator

Other

Backdrop CMS (http://backdropcms.org)

X-Nginx-Cache

Other

MISS

X-Served-By

Other

cache-ewr-kewr1740028-EWR, cache-ewr-kewr1740074-EWR

X-Timer

Other

S1777440920.833306,VS0,VE54

date: Wed, 29 Apr 2026 05:35:19 GMT
link: <https://backdropcms.org/>; rel="canonical",<https://backdropcms.org/>; rel="shortlink"
via: 1.1 varnish
x-backdrop-cache: HIT
x-cache: MISS, MISS
x-cache-hits: 0, 0
x-generator: Backdrop CMS (http://backdropcms.org)
x-nginx-cache: MISS
x-served-by: cache-ewr-kewr1740028-EWR, cache-ewr-kewr1740074-EWR
x-timer: S1777440920.833306,VS0,VE54

Recommendations

Enable compression (gzip/brotli) to improve performance