Results for hosted.mailcow.de

Check again 2020-04-10 05:22:09 Etc/UTC

HTTPS by default

hosted.mailcow.de uses HTTPS by default.

Chromium reports the following:

State Title Summary Description
Certificate valid and trusted The connection to this site is using a valid, trusted server certificate issued by GeoTrust RSA CA 2018.
Connection secure connection settings The connection to this site is encrypted and authenticated using TLS 1.2, ECDHE_RSA with X25519, and AES_128_GCM.
Resources all served securely All resources on this page are served securely.

More information about the site's TLS/SSL configuration:

HTTP Strict Transport Security (HSTS)

HSTS policy for https://hosted.mailcow.de:
max-age=31536000; includeSubDomains; preload

Pass Test
max-age set to at least 6 months
includeSubDomains — policy also applies to subdomains
preload — requests inclusion in preload lists [only relevant for base domain]

Base domain (https://mailcow.de) HSTS status unknown.

Content Security Policy

Content Security Policy (CSP) header not implemented.

The Content Security Policy tests are based on the ones from the Mozilla HTTP Observatory scanner/grader project (Mozilla Public License 2.0) by April King, reimplemented by us for Webbkoll. The explanatory texts are from the Observatory by Mozilla website, CC-BY-SA 3.0. Any mistake or inaccuracy in the results is our fault.

Referrer Policy

Referrer Policy set to no-referrer in meta element.

Subresource Integrity (SRI)

Subresource Integrity (SRI) not implemented, but all resources are loaded from a similar origin.

The Subresource Integrity test is based on the one from the Mozilla HTTP Observatory scanner/grader project (Mozilla Public License 2.0) by April King, reimplemented by us for Webbkoll.

HTTP headers

Pass Header Value Result
X-Content-Type-Options nosniff X-Content-Type-Options header set to "nosniff"
X-Frame-Options SAMEORIGIN X-Frame-Options (XFO) header set to SAMEORIGIN or DENY
X-XSS-Protection 1; mode=block X-XSS-Protection header set to "1; mode=block"

The header tests are based on the ones from the Mozilla HTTP Observatory scanner/grader project (Mozilla Public License 2.0) by April King, reimplemented by us for Webbkoll. The explanatory texts are from the Observatory by Mozilla website, CC-BY-SA 3.0.

Cookies

First-party cookies (1)

Domain Name Value Expires on HttpOnly Secure SameSite
hosted.mailcow.de PHPSESSID lbf50h6ltvjeqboj7t8d... session

HttpOnly means that the cookie can only be read by the server, and not by JavaScript on the client. This can mitigate XSS (cross-site scripting) attacks.

Secure means that the cookie will only be sent over a secure channel (HTTPS). This can mitigate MITM (man-in-the-middle) attacks.

SameSite can be used to instruct the browser to only send the cookie when the request is originating from the same site. This can mitigate CSRF (cross-site request forgery) attacks.

GDPR: Rec. 60, Rec. 61, Rec. 69, Rec. 70, Rec. 75, Rec. 78, Art. 5.1.a, Art. 5.1.c, Art. 5.1.e, Art. 21, Art. 22, Art. 32.

e-PD (2002/58/EC). Rec. 24, 25, Art. 5.2.

e-PD revised (2009/136/EC). Rec. 65, 66.

More information

localStorage

localStorage not used.

Third-party requests

No third-party requests.

A third-party request is a request to a domain that's not mailcow.de or one of its subdomains.

GDPR: Rec. 69, Rec. 70, Art. 5.1.b-c, Art. 25.

Server location

The server hosted.mailcow.de (5.1.76.202) appears to have been located in Germany during our test.

See more information (e.g., provider) about this IP address using KeyCDN's tool.

Raw headers

Header Value
cache-control no-store, no-cache, must-revalidate
connection keep-alive
content-encoding gzip
content-type text/html; charset=UTF-8
date Fri, 10 Apr 2020 05:21:57 GMT
expires Thu, 19 Nov 1981 08:52:00 GMT
pragma no-cache
server nginx
set-cookie PHPSESSID=lbf50h6ltvjeqboj7t8desbroh; path=/; secure; HttpOnly
strict-transport-security max-age=31536000; includeSubDomains; preload
transfer-encoding chunked
x-content-type-options nosniff
x-frame-options SAMEORIGIN
x-xss-protection 1; mode=block

What this tool checks (and doesn't check)

This tool attempts to simulate what happens when a user visits a specified page with a typical browser. The browser has no addons/extensions installed, and Do Not Track (DNT) is not enabled, since this is the default setting in most browsers.

External files such as images, scripts and CSS are loaded, but the tool performs no interactions with the page — no links are clicked, no forms are submitted.

Disclaimer: The results presented here might not be 100% correct. Bugs happen. This tool is meant to be used by site owners as a starting point for improvements, not as a rigorous analysis.

Text about HTTPS partly adapted from the CIO Council's The HTTPS-Only Standard (public domain). MaxMind's GeoLite2 country database (CC-BY-SA 4.0) is used for GeoIP lookups. See here for more information.