Technical audit · 29.05.2026

bmi.bund.de

German Federal Ministry of the Interior

Federal Ministry of the Interior. 112 requests, 3 domains — all state-owned. social.bund.de — a state Mastodon server. multimedia.gsb.bund.de — a state media server. ReadSpeaker — 10 files served locally. Matomo opt-in via the matomoTracking cookie. No tracking appears in the HAR. Full compliance.

Request timeline

+127 ms · load
CSS, SVG icons, images — all from www.bmi.bund.de. Topics: security, migration, Bevölkerungsschutz (civil protection), the constitution, modern governance.
+189 ms · ReadSpeaker
www.bmi.bund.de/static/readspeaker/ — ReadSpeaker v2.5.4.1728 loads from 10 local files: Core.js, PlayerAPI.js, HL.js, ui.js, Config.js, Facade.js, Styles.css, Settings.js, Customization.js. Fully self-hosted — no external calls.
+311 ms · fonts
BundesSansWeb v3-014 (Regular, Bold, Italic) and BundesSerifWeb (Regular, Bold, Italic) — all local.
+764 ms · state Mastodon
social.bund.de — a state Mastodon server (Fediverse). 3 requests: BMI's account avatar, an attachment to a post. Data transfer stays within state infrastructure.
+769 ms · state media server
multimedia.gsb.bund.de — the GSB (Government Site Builder) state media server. 1 request: a twemoji emoji 👉. State infrastructure.

Declared versus actual

✓ Matomo/PIWIK — documented with the matomoTracking cookie, opt-in — declared
✓ IP anonymization — 'zwei Bytes der IP-Adresse anonym' — declared
✓ ReadSpeaker — documented (IP transmitted only when the 'Vorlesen' button is activated) — declared
✓ Session cookies (Warenkorb) — documented as technisch notwendig — declared
✓ ITZBund — documented as Auftragsverarbeiter — declared
+ social.bund.de — not explicitly mentioned in the policy — not declared
+ multimedia.gsb.bund.de — not explicitly mentioned in the policy — not declared

Transfer timings

+764 ms social.bund.de

Federal bodies' Mastodon server. social.bund.de. State infrastructure.

+769 ms multimedia.gsb.bund.de

GSB media server. twemoji emoji. State infrastructure.

Context

BMI (Bundesministerium des Innern und für Heimat) is the Federal Ministry of the Interior, overseeing Bundespolizei, BKA, BfV, BBK, BAMF, and other agencies covered in this series. Responsible for internal security, migration, civil protection, and constitutional order. HAR: 112 requests, 3 domains.

social.bund.de — state Mastodon

BMI’s homepage displays a feed of posts from the ministry’s Mastodon account. social.bund.de is the state Fediverse server, operated within the bund.de infrastructure. Three requests: BMI’s account avatar, an image attachment to a post, a thumbnail image. This is not a third-party service: social.bund.de sits within state infrastructure, just like www.bmi.bund.de. The data transfer is between state servers. The policy contains a Social Media section but does not mention social.bund.de as a distinct technical recipient of data when the homepage loads.

multimedia.gsb.bund.de — Government Site Builder

multimedia.gsb.bund.de is the media server of Government Site Builder, the central CMS platform for federal bodies. One request: a twemoji emoji 👉 (1f449.png). Technically, this is the same state infrastructure as www.bmi.bund.de. Not explicitly mentioned in the policy.

ReadSpeaker — a fully self-hosted implementation

BMI goes further than BBK: ReadSpeaker is hosted not as a single JS file, but as a complete package of 10 files: Core.js, PlayerAPI.js, HL.js, ui.js, Config.js, Facade.js, Styles.css, Common.Settings.js, pub.Config.js, Customization.js — all served from www.bmi.bund.de/static/readspeaker/. Not a single request to external ReadSpeaker servers on page load. The IP address is transmitted only when “Vorlesen” is clicked — exactly as documented in the policy.

The policy describes the mechanism in detail: the cookieBannerClosed cookie records that the banner was interacted with, and matomoTracking (value true/false) records the user’s statistics choice. “Nur dann wird das Javascript von Matomo geladen und ermöglicht statistische Auswertungen.” There are no Matomo requests in the HAR — consent has not been given, and the analytics tool is not activated.

Conclusion

bmi.bund.de is the eighth zero result in the German series. The ministry that oversees most of the agencies covered in this series reproduces the same standard: state hosting, local fonts, ReadSpeaker with no external calls, and Matomo with correct opt-in. The two additional domains (social.bund.de, multimedia.gsb.bund.de) are state infrastructure, not third-party services. Using a state-run Mastodon server instead of Twitter/X for the social widget is a deliberate choice in favor of infrastructural independence.

Evidence

How to verify: download the file and compute its checksum — sha256sum file.har (Linux, macOS) or certutil -hashfile file.har SHA256 (Windows); it must match the one shown. The conclusions apply to the scope of this measurement — see the limitations of the method.

Original (audit)
HAR file: de/bmi-bund-de-2026-05-29.har
SHA-256: 30c5e2d9c85cd3211e5014069aab8d2983f009421b1354ac8adbc234b33372eb
HAR files are stored on EU infrastructure (Proton Drive). SHA-256 is published for integrity verification.