// privacy.policy_
Information about the processing of personal data on this website in accordance with the EU General Data Protection Regulation (GDPR).
1. Controller
The controller within the meaning of Art. 4 (7) GDPR for the processing of personal data on this website is:
Jan-Maurice DahlmannsKattowitzerstraße 2b
41065 Mönchengladbach
Germany
Phone: +49 2161 902 26 31
E-mail: requests@bugfish.eu
2. General Information
This is a purely static, non-commercial website. It does not use cookies, does not use analytics or tracking tools, does not embed third-party content (all fonts, images, scripts and audio files are served locally from this website itself), and does not contain contact forms, comment functions or any other input fields that transmit data to us. The browser tools process your input locally on your device (see section 5).
Personal data is therefore only processed to the technically necessary extent described below.
3. Hosting via GitHub Pages
This website is hosted on GitHub Pages, a service of GitHub, Inc., 88 Colin P. Kelly Jr. Street, San Francisco, CA 94107, USA ("GitHub").
When you visit this website, GitHub automatically processes technical data that your browser transmits, in particular:
- IP address of the requesting device
- Date and time of the request
- Requested page / file (URL)
- Browser type and version, operating system (user agent)
- Referrer URL
This data is processed by GitHub in server log files for the purpose of delivering the website, ensuring its stability and security, and defending against attacks. We ourselves have no access to these log files.
The legal basis for this processing is Art. 6 (1) lit. f GDPR. Our legitimate interest lies in the secure and reliable provision of this website.
GitHub may transfer this data to servers in the United States. GitHub, Inc. is certified under the EU-U.S. Data Privacy Framework, which the European Commission recognises as providing an adequate level of data protection (Art. 45 GDPR).
Further information can be found in GitHub's privacy documentation: GitHub General Privacy Statement and About GitHub Pages - data collection.
4. No Cookies, No Tracking
This website does not set any cookies and does not use web analytics, advertising networks, social media plugins, or fingerprinting technologies. The optional music player and the interactive terminal on the start page run entirely in your browser; no data is transmitted to us or to third parties when you use them.
Local storage. Nothing is written to your device automatically. Only when
you expressly ask for it, a few features keep small entries in your browser's local
storage: the terminal's save game (command checkpoint), your favourite tools
(star button on the Tools page) and game scores (checkbox "remember on this device"). These
entries stay on your device and are never transmitted to us or to anyone else — we cannot
access them. Storing and reading them is strictly necessary to provide the function you
expressly requested (§ 25 (2) no. 2 TDDDG), so no consent is required. You can delete them
at any time: with the "forget all" button on the Tools page, by unticking "remember on this
device", or by clearing this website's data in your browser settings.
5. Browser Tools
The tools on the Tools page (e.g. hash and password generators, encoders, converters, image and QR tools, games) run entirely in your browser. Text, files and images you enter or drop into them are processed locally on your device and are not uploaded to us or to third parties. Settings such as the list of recently used tools exist only in memory for the duration of your visit.
5.1 DNS Lookup and Mail DNS Checker — only with your consent
These two tools can only answer DNS questions by asking a public DNS resolver. They therefore show a consent checkbox, which is not pre-ticked. No data is sent before you tick it. Once you have consented and start a lookup, your browser sends the following data directly to the DNS-over-HTTPS resolver you selected:
- the domain name or IP address you look up and the requested record types,
- your IP address, the date and time of the request,
- technical request data transmitted by your browser (e.g. browser type / user agent).
No cookies, credentials or referrer are sent with these requests. Depending on your selection, the recipient is Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA (privacy notice for the 1.1.1.1 resolver), and/or Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA (privacy notice for Google Public DNS). The providers process this data under their own responsibility to answer your queries; we ourselves receive none of it.
Purpose and legal basis: answering the DNS queries you requested, based on your consent (Art. 6 (1) lit. a GDPR). Giving consent is voluntary; without it, only these two tools cannot be used.
Withdrawal: you can withdraw your consent at any time with effect for the future by unticking the checkbox (Art. 7 (3) GDPR); the lawfulness of the requests made before the withdrawal remains unaffected. Your consent is not stored — it only applies to your current visit of the page and has to be given again after reloading.
Transfer to a third country: the data is transferred to the USA. Cloudflare, Inc. and Google LLC are certified under the EU-U.S. Data Privacy Framework, for which the European Commission has adopted an adequacy decision (Art. 45 GDPR).
Storage period: we do not store any of this data. How long the providers keep their resolver logs is set out in their privacy notices linked above.
5.2 Images in the Markdown preview
The Markdown preview does not load images from other servers on its own; remote images are shown as placeholders. Only if you click "load remote images", your browser connects to the servers named in your image addresses, which receive your IP address. This happens solely at your own request and for addresses you entered yourself; we have no influence on the processing by those servers.
6. Contact by E-mail
If you contact us by e-mail, the data you provide (your e-mail address, the content of your message and any personal data contained in it) will be processed solely to handle your request. The legal basis is Art. 6 (1) lit. f GDPR (legitimate interest in answering your enquiry) or, if your enquiry is aimed at concluding a contract, Art. 6 (1) lit. b GDPR. Your data will be deleted once the correspondence is complete, unless statutory retention obligations apply.
7. External Links
This website contains links to external websites (e.g. GitHub, YouTube, Spotify, social networks). This privacy policy applies only to this website. When you follow an external link, the privacy policy of the respective operator applies. No data is transferred to these providers by merely visiting this website - a connection is only established after you actively click a link.
8. Your Rights as Data Subject
Regarding the personal data concerning you, you have the following rights under the GDPR:
- Right of access (Art. 15 GDPR)
- Right to rectification (Art. 16 GDPR)
- Right to erasure (Art. 17 GDPR)
- Right to restriction of processing (Art. 18 GDPR)
- Right to data portability (Art. 20 GDPR)
- Right to object to processing based on Art. 6 (1) lit. f GDPR (Art. 21 GDPR)
To exercise these rights, contact us using the details given in section 1. Exercising these rights is free of charge.
9. Right to Lodge a Complaint
You have the right to lodge a complaint with a data protection supervisory authority (Art. 77 GDPR). The supervisory authority responsible for us is:
Landesbeauftragte für Datenschutz und Informationsfreiheit Nordrhein-WestfalenKavalleriestraße 2-4
40213 Düsseldorf, Germany
www.ldi.nrw.de
10. No Automated Decision-Making
No automated decision-making or profiling within the meaning of Art. 22 GDPR takes place on this website.
11. Data Security
This website is delivered exclusively over an encrypted HTTPS connection provided by GitHub Pages.
12. Changes to this Privacy Policy
We may update this privacy policy to reflect legal or technical changes. The current version is always available on this page.
LAST UPDATED: 2026-09-24