Privacy

Most of this site holds nothing about you at all. You can read every explainer, work through the questions and read the timeline without an account, and none of that is recorded against you. The part that does hold personal data is the directory, and this page is about that part.

Who is responsible

Melvin Erk, Cothmannstraße 5-7, 1120 Wien, Austria. Write to contact@kaiserbyte.com about anything on this page.

What is held, and why

Your email address

Held so you can sign in. There is no password on this site — we send a link to your address instead, and clicking it signs you in. The legal basis is Art. 6(1)(b): it is what makes the free service you asked for work at all.

Giving it is neither a legal nor a contractual requirement. Nothing happens if you do not: you simply do not have an account, and everything except the directory works without one.

Your listing

If you publish a listing, it holds the name you give, the country, the ways to contact you, the languages you work in, and whatever you write in the description. The legal basis is again Art. 6(1)(b), and it is published on purpose — the listing being readable is the whole point of it.

Your listing is public. Anyone can read it and search engines can index it. Only the ways to contact you are held back, and those are shown to people who are signed in. You can take the listing down at any moment and it disappears from this site immediately — but copies already taken by search engines are not ours to delete, so we do not pretend otherwise.

Who looked at whose contact details

When a signed-in account is shown a listing's contact details, one line is recorded: which account, which listing, what time. Nothing about what was said afterwards, because conversations happen by email between the two of you and never touch this site.

The legal basis is Art. 6(1)(f), our legitimate interest in noticing when somebody works through the whole directory collecting addresses to spam. These lines are deleted automatically after 90 days.

Reports about a listing

If you report a listing, we keep what you sent so we can look at it and, if we act, tell the person affected why. You do not have to say who you are.

Cookies

Two, both set when you sign in and both gone when you sign out. sid holds a random identifier and nothing else, and it is what keeps you signed in. ppwr_account holds the single character 1 — no name, no identifier, nothing that says who you are — and its only job is to let the page show "Your listing" instead of "Sign in" without asking the server first.

There is no analytics cookie, no advertising cookie and no tracking of any kind, which is why this site never asks you to accept anything.

Nothing on these pages is loaded from anywhere else — no fonts from a font service, no maps, no embedded videos, no scripts from other companies. Your browser talks to this site and to nobody else.

Who else sees it

Two kinds of supplier, and no others: the one delivering our outgoing mail, because that is what sending you a sign-in link means, and the one hosting the server, because that is where the data sits. Nobody receives it for their own purposes, and it is not sold.

How long it is kept

• Account and listing: until you delete them. Delete the account and both go.
• Who-looked-at-whom lines: 90 days, then deleted automatically.
• Sign-in links and codes: they stop working after minutes and are deleted the moment they are used.
• Server logs: short, and kept only as long as running the server needs.

What you can ask for, and who to complain to

You can ask for a copy of what is held about you, ask for it to be corrected, ask for it to be deleted, ask us to stop using it, object to the who-looked-at-whom logging, or ask for your data in a portable form. Write to contact@kaiserbyte.com.

Nothing on this site is billed, so a deletion request has no accounting record standing in its way.

If you are unhappy with how any of that is handled, you can complain to a supervisory authority. In Austria that is the Österreichische Datenschutzbehörde, Barichgasse 40-42, 1030 Wien, Austria.

Decisions made by machine

None. Nothing here profiles you or decides anything about you automatically, and the questions you work through in the check are never sent to us at all.

Last written on 2026-08-13.