They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. Benjamin Franklin, Memoirs of the life & writings of Benjamin Franklin

TLDR

This website is not logging any data, is not using any scripts/applications for tracking its visitors and does not place any cookies on your computer.

Logging

The access and error logs are disabled in nginx so there is absolutely no trace of any of the visitors of this website. I suggest you do the same thing if you can, the side effect is that I have no idea how many visitors the website gets.

access_log off;
error_log off;

Data Transfer

All data is served over the HTTPS protocol, encrypting all data between the browser and the server. Your network provider will still be able to see that you are downloading data from sizeof.cat, but they will not be able to see the content.

Google FLoC

Google Chrome product development team introduced a technology called the Federated Learning of Cohorts (FLoC), first proposed in 2020. Google explains that FLoC is “a new way for businesses to reach people with relevant content and ads by clustering large groups of people with similar interests. FLoC is built into the Chrome source code, and clusters users together based on which websites they visit. FLoC can be accessed by a Javascript API on different pages to enable a new form of ad targeting.

This website opts out of all FLoC cohort calculation by sending the HTTP response header Permissions-Policy with a specific flag. This enables a website to declare that it does not want to be included in the user’s list of sites for cohort calculation.

add_header Permissions-Policy "interest-cohort=()";

Whether Google respects the flag, now that’s another issue.

Do Not Track

This websitesite uses the LetsEncrypt Certificate Authority, which is itself DNT-compliant and does not log your browser checking the validity of this website’s HTTPS certificate. The DNT policy file is available here.

HTTP referer

This website is using meta tags to strip referer information (yes, that’s how the HTTP header IS spelled) from all outgoing links as well as placing rel="noreferrer" on the same anchor links, therefore not passing any referral data from this website to any external websites.

<meta name="referrer" content="never" />
<meta name="referrer" content="no-referrer" />

Webmentions

When you send a webmention to this website, you are explicitly providing metadata in your website’s markup, and this information is used to display your comment/reply on this website. This information consists of:

  • Your name or username.
  • A profile picture or avatar, if you have set one on your website.
  • The URL of your website, and the specific URL of your comment/reply.
  • The content of your comment/reply.

All of this is information made public by you, and no information other than information you have made public can be captured by this process.

DDoS Guard

DDoS Guard is providing protection against DDoS attacks and obscures the origin server for my privacy and safety.

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