HTTP Headers Analysis for https://get.vitalsource.com

Open Cached · just now

26 Headers

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Weak

upgrade-insecure-requests 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

Good

no-referrer-when-downgrade

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Significantly strengthen CSP directives
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

Transfer-Encoding

Performance

chunked

Vary

Performance

accept-encoding

connection: close
transfer-encoding: chunked
vary: accept-encoding

Caching Headers

Cache-Control

Caching

s-maxage=36000, max-age=5

Last-Modified

Caching

Tue, 07 Apr 2026 08:59:29 GMT

cache-control: s-maxage=36000, max-age=5
last-modified: Tue, 07 Apr 2026 08:59:29 GMT

Content Headers

Content-Type

Content

text/html; charset=UTF-8

content-type: text/html; charset=UTF-8

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

set-cookie: __cf_bm=NPVx79qScjO5hJ4mcWrMTzbZscjM0FGspwjVB53aHf0-1777945790.0652087-1.0.1.1-hOyBQP5al8ZkLMwuMxzed.zslYGwZlQPoPVoerFeVeNcWEvTnD.Vt243jcTvUZJ7CgbeCd.0GZd146tTBdmpKNgL3hfC6wQVKfRKIUSMvfe_5_nLN67MNzTLnrCl1pRR; HttpOnly; Secure; Path=/; Domain=get.vitalsource.com; Expires=Tue, 05 May 2026 02:19:50 GMT
_cfuvid=wppa8qj_wBfKeCEH7TWedEdxNrwcQpiIvnrycJHC_lM-1777945790.0652087-1.0.1.1-Z4hTWhwvgqJ17Z5v9dQVnTl3ntbtjsxjCFyZWnx5CmI; HttpOnly; SameSite=None; Secure; Path=/; Domain=get.vitalsource.com

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Ray

Other

9f6c1743ebc84ba9-IAD

Date

Other

Tue, 05 May 2026 01:49:50 GMT

Edge-Cache-Tag

Other

CT-77621533266,P-21688971,L-205319256488,W-205495704354,W-205532310682,W-205532310684,W-205532310686,W-205532310690,CW-174440018870,CW-174515927853,CW-174852845879,CW-182724355122,CW-184009249676,CW-184009250081,CW-184009250092,CW-184010451066,CW-184010902060,CW-205451864394,CW-205483016047,CW-73471801412,CW-73471943083,CW-79705144371,E-174458324771,E-174515604267,E-174516918630,E-174855408980,E-174859988393,E-174862733427,E-174896794658,E-182724314164,E-182731652907,E-184010452331,E-184131734962,E-184186245767,E-184564147065,E-184592956000,E-184631442469,E-184632100166,E-184666336575,E-184786968232,E-184971798443,E-184977156676,E-187232606608,E-205450977969,E-205451864429,E-205483016225,E-73471379124,E-73471444654,E-73471530090,E-73471730035,E-73471733387,E-73471735050,E-73471933485,E-73471943080,MENU-205495704354,MENU-205532310682,MENU-205532310684,MENU-205532310686,MENU-205532310690,MENU-205532310796,PGS-ALL,SW-2,GC-205514012200,GC-205532297058,GC-79015307027

Link

Other

URL https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/205451864429/1768979907474/template_vs-header-v3.min.css

rel=preload as=style

URL https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/174458324771/1752604260226/template_vs-hero-panel-v2.min.css

rel=preload as=style

URL https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/73471530090/1743099532762/template_animate.min.css

rel=preload as=style

URL https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/184131734962/1752604257317/template_vs-content-media-40-60-panels-v2.min.css

rel=preload as=style

Nel

Other

Report-To Group cf-nel max-age: 1w

success: 1.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=A%2FtGaB%2FLaXxznQqc8X4GdUnnOEn3eKeG%2B7rMo8eLHIEoEMaxilmltZIKycP2fLWR%2FA2DpanX9DMNIbXTSsQv95GIBpZD%2FlaKK5UtmpCQ%2BaVOHLZ1%2B3hkg9hepn4dZ26UpKSDj1s%3D

X-Hs-Cache-Config

Other

BrowserCache-5s-EdgeCache-180s

X-Hs-Cache-Control

Other

s-maxage=36000, max-age=0

X-Hs-Cf-Cache-Status

Other

HIT

X-Hs-Cfworker-Meta

Other

{"contentType":"SITE_PAGE","resolver":"PreRenderedContentResolver"}

X-Hs-Content-Id

Other

77621533266

X-Hs-Hub-Id

Other

21688971

X-Hs-Portal-Id

Other

21688971

X-Hs-Prerendered

Other

Tue, 07 Apr 2026 08:59:29 GMT

alt-svc: h3=":443"; ma=86400
cf-ray: 9f6c1743ebc84ba9-IAD
date: Tue, 05 May 2026 01:49:50 GMT
edge-cache-tag: CT-77621533266,P-21688971,L-205319256488,W-205495704354,W-205532310682,W-205532310684,W-205532310686,W-205532310690,CW-174440018870,CW-174515927853,CW-174852845879,CW-182724355122,CW-184009249676,CW-184009250081,CW-184009250092,CW-184010451066,CW-184010902060,CW-205451864394,CW-205483016047,CW-73471801412,CW-73471943083,CW-79705144371,E-174458324771,E-174515604267,E-174516918630,E-174855408980,E-174859988393,E-174862733427,E-174896794658,E-182724314164,E-182731652907,E-184010452331,E-184131734962,E-184186245767,E-184564147065,E-184592956000,E-184631442469,E-184632100166,E-184666336575,E-184786968232,E-184971798443,E-184977156676,E-187232606608,E-205450977969,E-205451864429,E-205483016225,E-73471379124,E-73471444654,E-73471530090,E-73471730035,E-73471733387,E-73471735050,E-73471933485,E-73471943080,MENU-205495704354,MENU-205532310682,MENU-205532310684,MENU-205532310686,MENU-205532310690,MENU-205532310796,PGS-ALL,SW-2,GC-205514012200,GC-205532297058,GC-79015307027
link: <https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/205451864429/1768979907474/template_vs-header-v3.min.css>; rel=preload; as=style,<https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/174458324771/1752604260226/template_vs-hero-panel-v2.min.css>; rel=preload; as=style,<https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/73471530090/1743099532762/template_animate.min.css>; rel=preload; as=style,<https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/184131734962/1752604257317/template_vs-content-media-40-60-panels-v2.min.css>; rel=preload; as=style,<https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/73471730035/1743099546649/template_owl-carousel.min.css>; rel=preload; as=style,<https://get.vitalsource.com/hubfs/hub_generated/template_assets/1/174855408980/1752604266118/template_vs-multi-use-panel-v2.min.css>; rel=preload; as=style
nel: {"report_to":"cf-nel","success_fraction":0.01,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=A%2FtGaB%2FLaXxznQqc8X4GdUnnOEn3eKeG%2B7rMo8eLHIEoEMaxilmltZIKycP2fLWR%2FA2DpanX9DMNIbXTSsQv95GIBpZD%2FlaKK5UtmpCQ%2BaVOHLZ1%2B3hkg9hepn4dZ26UpKSDj1s%3D"}]}
x-hs-cache-config: BrowserCache-5s-EdgeCache-180s
x-hs-cache-control: s-maxage=36000, max-age=0
x-hs-cf-cache-status: HIT
x-hs-cfworker-meta: {"contentType":"SITE_PAGE","resolver":"PreRenderedContentResolver"}
x-hs-content-id: 77621533266
x-hs-hub-id: 21688971
x-hs-portal-id: 21688971
x-hs-prerendered: Tue, 07 Apr 2026 08:59:29 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance