HTTP Headers Analysis for https://yubico.com

Detected Technologies from Headers

See all in URL Inspect 1

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

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

Good

strict-origin-when-cross-origin

Permissions-Policy

Missing

Not configured

Recommendations

• 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,Accept-Encoding

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

Caching Headers

Age

Caching

31435

Cache-Control

Caching

max-age=0

age: 31435
cache-control: max-age=0

Content Headers

Content-Length

Content

418606

Content-Type

Content

text/html; charset=UTF-8

content-length: 418606
content-type: text/html; charset=UTF-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Sat, 11 Apr 2026 11:35:35 GMT

Link

Other

URL https://www.yubico.com/wp-json/

rel=https://api.w.org/

URL https://www.yubico.com/wp-json/wp/v2/pages/576376

rel=alternate title=JSON type=application/json

URL https://www.yubico.com/

rel=shortlink

Via

Other

1.1 google, 1.1 varnish

X-Cache

Other

HIT

X-Cache-Hits

Other

0

X-Served-By

Other

cache-nyc-kteb1890075-NYC

X-Timer

Other

S1775907336.537820,VS0,VE1

date: Sat, 11 Apr 2026 11:35:35 GMT
link: <https://www.yubico.com/wp-json/>; rel="https://api.w.org/", <https://www.yubico.com/wp-json/wp/v2/pages/576376>; rel="alternate"; title="JSON"; type="application/json", <https://www.yubico.com/>; rel=shortlink
via: 1.1 google, 1.1 varnish
x-cache: HIT
x-cache-hits: 0
x-served-by: cache-nyc-kteb1890075-NYC
x-timer: S1775907336.537820,VS0,VE1

Recommendations

Enable compression (gzip/brotli) to improve performance