HTTP Headers Analysis for https://instructuremedia.com

Detected Technologies from Headers

See all in URL Inspect 4

Drupal

Nginx

Pantheon

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15768000

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Weak

report-uri Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

no-referrer-when-downgrade

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
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

Accept-Encoding, Cookie, Cookie, Cookie

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

Caching Headers

Age

Caching

814

Cache-Control

Caching

max-age=31536000, public

Etag

Caching

W/"1772049695"

Expires

Caching

Sun, 19 Nov 1978 05:00:00 GMT

Last-Modified

Caching

Wed, 25 Feb 2026 20:01:35 GMT

age: 814
cache-control: max-age=31536000, public
etag: W/"1772049695"
expires: Sun, 19 Nov 1978 05:00:00 GMT
last-modified: Wed, 25 Feb 2026 20:01:35 GMT

Content Headers

Content-Language

Content

en

Content-Length

Content

145800

Content-Type

Content

text/html; charset=UTF-8

content-language: en
content-length: 145800
content-type: text/html; charset=UTF-8

Server Headers

Server

nginx

server: nginx

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Wed, 25 Feb 2026 20:18:22 GMT

Via

Other

1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish

X-Cache

Other

HIT, MISS, MISS, MISS, MISS

X-Cache-Hits

Other

2, 0, 0, 0, 0

X-Drupal-Cache

Other

HIT

X-Drupal-Dynamic-Cache

Other

MISS

X-Generator

Other

Drupal 10 (https://www.drupal.org)

X-Pantheon-Styx-Hostname

Other

styx-fe3-a-856584b44b-97zzj

X-Served-By

Other

cache-chi-klot8100106-CHI, cache-iad-kiad7000036-IAD, cache-iad-kiad7000139-IAD, cache-iad-kiad7000139-IAD, cache-iad-kcgs7200179-IAD

X-Styx-Req-Id

Other

3ca4d1e7-1285-11f1-887a-36d7aa985e07

X-Timer

Other

S1772050702.349831,VS0,VE43

date: Wed, 25 Feb 2026 20:18:22 GMT
via: 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-cache: HIT, MISS, MISS, MISS, MISS
x-cache-hits: 2, 0, 0, 0, 0
x-drupal-cache: HIT
x-drupal-dynamic-cache: MISS
x-generator: Drupal 10 (https://www.drupal.org)
x-pantheon-styx-hostname: styx-fe3-a-856584b44b-97zzj
x-served-by: cache-chi-klot8100106-CHI, cache-iad-kiad7000036-IAD, cache-iad-kiad7000139-IAD, cache-iad-kiad7000139-IAD, cache-iad-kcgs7200179-IAD
x-styx-req-id: 3ca4d1e7-1285-11f1-887a-36d7aa985e07
x-timer: S1772050702.349831,VS0,VE43

Recommendations

Enable compression (gzip/brotli) to improve performance