HTTP Headers Analysis for https://viaf.org

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare CDN

Next.js

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536000; includeSubDomains

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

• Consider adding 'preload' to HSTS for maximum security
• 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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-Encoding

connection: close
transfer-encoding: chunked
vary: RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-Encoding

Caching Headers

Cache-Control

Caching

private, no-cache, no-store, max-age=0, must-revalidate

cache-control: private, no-cache, no-store, max-age=0, must-revalidate

Content Headers

Content-Type

Content

text/html;charset=utf-8

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

Server Headers

Server

cloudflare

X-Powered-By

Server

Next.js

server: cloudflare
x-powered-by: Next.js

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: NEXT_LOCALE=en; Path=/; Expires=Sun, 11 Apr 2027 18:19:47 GMT; Max-Age=31536000; SameSite=lax
__cf_bm=CrVSLnnuIG8MlMITda2k5BCIYG641OOokgp1.X9pyCg-1775931587.5367668-1.0.1.1-cuUjMuCOusZ.m8JUer32Ej3zfCC49KaLHpO1LgjM5Dr8wcRja.Dk_Oa8SVpA445oG2L8nAdxZphpGn0rK1QGL3Yk27UywhKIBPK4csfh.r85pINvOt.agdG00B5FHrro; HttpOnly; Secure; Path=/; Domain=viaf.org; Expires=Sat, 11 Apr 2026 18:49:47 GMT

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9eac006619302290-IAD

Date

Other

Sat, 11 Apr 2026 18:19:47 GMT

Link

Other

URL https://viaf.org/de

rel=alternate hreflang=de

URL https://viaf.org/en

rel=alternate hreflang=en

URL https://viaf.org/es

rel=alternate hreflang=es

URL https://viaf.org/fr

rel=alternate hreflang=fr

X-Middleware-Rewrite

Other

/en

X-Middleware-Set-Cookie

Other

NEXT_LOCALE=en; Path=/; Expires=Sun, 11 Apr 2027 18:19:47 GMT; Max-Age=31536000; SameSite=lax

cf-cache-status: DYNAMIC
cf-ray: 9eac006619302290-IAD
date: Sat, 11 Apr 2026 18:19:47 GMT
link: <https://viaf.org/de>; rel="alternate"; hreflang="de", <https://viaf.org/en>; rel="alternate"; hreflang="en", <https://viaf.org/es>; rel="alternate"; hreflang="es", <https://viaf.org/fr>; rel="alternate"; hreflang="fr", <https://viaf.org/ja>; rel="alternate"; hreflang="ja", <https://viaf.org/ko>; rel="alternate"; hreflang="ko", <https://viaf.org/pl>; rel="alternate"; hreflang="pl", <https://viaf.org/ru>; rel="alternate"; hreflang="ru", <https://viaf.org/>; rel="alternate"; hreflang="x-default", </_next/static/media/4473ecc91f70f139-s.p.woff>; rel=preload; as="font"; crossorigin=""; type="font/woff", </_next/static/media/463dafcda517f24f-s.p.woff>; rel=preload; as="font"; crossorigin=""; type="font/woff"
x-middleware-rewrite: /en
x-middleware-set-cookie: NEXT_LOCALE=en; Path=/; Expires=Sun, 11 Apr 2027 18:19:47 GMT; Max-Age=31536000; SameSite=lax

Recommendations

Enable compression (gzip/brotli) to improve performance

Consider removing X-Powered-By header to hide server technology