HTTP Headers Analysis for https://telefonica.es

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare CDN

WordPress VIP

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

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

Good

nosniff

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 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

Accept-Encoding, accept, content-type

connection: close
transfer-encoding: chunked
vary: Accept-Encoding, accept, content-type

Caching Headers

Cache-Control

Caching

max-age=300, must-revalidate

cache-control: max-age=300, 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

WordPress VIP <https://wpvip.com>

server: cloudflare
x-powered-by: WordPress VIP <https://wpvip.com>

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

a4d374f4da74902d-ARN

Date

Other

Mon, 19 Oct 2026 23:10:33 GMT

Host-Header

Other

a9130478a60e5f9135f765b23f26593b

Server-Timing

Other

cfCacheStatus;desc="DYNAMIC", cfEdge;dur=3,cfOrigin;dur=1

X-Cache

Other

HIT

X-Hacker

Other

If you're reading this, you should visit https://join.a8c.com/viphacker and apply to join the fun, mention this header.

X-Remembering

Other

Eric Binnion <https://friendsofericbinnion.wordpress.com/>

X-Rq

Other

arn1 182 253 80

X-Tef-Country-2

Other

SE

alt-svc: h3=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: a4d374f4da74902d-ARN
date: Mon, 19 Oct 2026 23:10:33 GMT
host-header: a9130478a60e5f9135f765b23f26593b
server-timing: cfCacheStatus;desc="DYNAMIC", cfEdge;dur=3,cfOrigin;dur=1
x-cache: HIT
x-hacker: If you're reading this, you should visit https://join.a8c.com/viphacker and apply to join the fun, mention this header.
x-remembering: Eric Binnion <https://friendsofericbinnion.wordpress.com/>
x-rq: arn1 182 253 80
x-tef-country-2: SE

Recommendations

Enable compression (gzip/brotli) to improve performance

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