What this site knows about you.
Short version: reading this site needs no cookies and no consent. Analytics is the only thing that would set one, it is off until you turn it on, and there is no account, no newsletter and no form here that asks you for anything.
Who runs this
Josef Širůčka runs sirucka.cz as a personal site — not a company, not on behalf of one. That makes him the data controller for anything described below. Write to josef@sirucka.cz about any of it.
Cookies
Three kinds, and only the last one is optional.
| Cookie | Purpose | Set when | Lifetime |
|---|---|---|---|
__Host-sirucka-auth |
Keeps the site owner signed in to the admin area. | Only on a successful admin login — never for a visitor. | 12 hours |
__Host-sirucka-af |
Blocks cross-site request forgery on admin forms. | Only in the admin area. | Browser session |
_ga, _ga_G-8LFE1XBL0L |
Google Analytics — counts visits and which pages get read. | Only after you accept in the consent bar. | 2 years |
Your answer to the consent bar is remembered in your browser's local storage under
sirucka-consent. That never leaves your device and is not readable by this
server.
Analytics
The site uses Google Analytics 4 (property G-8LFE1XBL0L) to see roughly how
many people read a page and which posts are worth writing more of. Until you accept,
no analytics code is loaded at all — Google is not contacted, and no
analytics cookie exists. Accepting loads it; choosing essential only does not,
and the site works identically either way.
You can change your mind at any time: . Clearing your browser storage for this site has the same effect.
Other services your browser contacts
Loading a page here also fetches a few files from other people's servers. Those servers necessarily see your IP address and user agent, the same as any request on the web. None of them are given anything else about you, and none of them set cookies for this site.
- fonts.googleapis.com and fonts.gstatic.com — the Source Sans 3 and JetBrains Mono typefaces, on every page.
- cdn.simpleicons.org — brand logos next to the contact links.
- googletagmanager.com and google-analytics.com — analytics, and only after you accept.
What the server records
There is no contact form on this site — the contact page is a plain
mailto: link, so writing to me is ordinary email and nothing passes through
here. No profiles, no comments, no sign-ups.
The server does see your IP address on each request, and uses it in memory to rate-limit abuse of the login and the live status feed. It is not written to the database and not shared. The hosting stack keeps short-lived operational logs, as any web server does.
Your rights
Under the GDPR you can ask what personal data is held about you, have it corrected or erased, have its processing restricted, object to it, and receive it in a portable form (Art. 15–21). In practice there is very little to ask about here: withdrawing analytics consent with the button above stops collection immediately and deletes the analytics cookies from this device. It does not erase what Google already received before you withdrew — for that, ask me and I will make the deletion request against the property. For anything else, email josef@sirucka.cz. If you think a request was handled badly, you can complain to the Czech supervisory authority, the Úřad pro ochranu osobních údajů.
Last updated 28 August 2026.