HTTP Headers Analysis for https://getproton.me

Detected Technologies from Headers

See all in URL Inspect 3

YouTube

Convert

OpenStreetMap

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

Basic

default-src; media-src; connect-src; +9 more 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

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding

accept-ranges: bytes
connection: close
transfer-encoding: chunked
vary: Accept-Encoding

Caching Headers

Age

Caching

33

Cache-Control

Caching

public, max-age=120, s-maxage=120, must-revalidate

Etag

Caching

"5b416-64e7c1b962580-gzip"

Last-Modified

Caching

Thu, 02 Apr 2026 15:46:46 GMT

age: 33
cache-control: public, max-age=120, s-maxage=120, must-revalidate
etag: "5b416-64e7c1b962580-gzip"
last-modified: Thu, 02 Apr 2026 15:46:46 GMT

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: Domain=protonvpn.com; Path=/; HttpOnly; SameSite=None; Secure; Max-Age=7776000
Tag=default; Path=/; SameSite=None; Secure; Max-Age=7776000

Other Headers

Date

Other

Fri, 03 Apr 2026 21:23:04 GMT

X-Permitted-Cross-Domain-Policies

Other

none

X-Ua-Compatible

Other

IE=Edge

date: Fri, 03 Apr 2026 21:23:04 GMT
x-permitted-cross-domain-policies: none
x-ua-compatible: IE=Edge

Recommendations

Enable compression (gzip/brotli) to improve performance