Technical audit · 29.05.2026

bmwsb.bund.de

Federal Ministry for Housing, Urban Development and Building

Federal Ministry for Housing, Urban Development and Building. 50 requests, 2 domains. GSB platform, Apache. BundesSchrift v3 and Fira Sans served locally. The Instagram CDN loads before the banner, without consent. The policy describes Instagram as an external channel, without mentioning the embedded feed. Set-Cookie — zero.

Request timeline

+0 ms · homepage
www.bmwsb.bund.de/ — GSB, Apache. The CSP allows a broad set of services for internal pages: *.intercom.io, *.castr.com, *.itzbund.de, *.newsletter2go.com — none active on the homepage.
+90 ms · GSB styles
GSB CSS bundles (small, medium, large, xlarge, xxlarge, xxxlarge, custom, addon_usability) — all local. BMWSB is one of the few GSB sites with xxlarge and xxxlarge breakpoints.
+219 ms · fonts
BundesSchrift-v3-014: BundesSansWeb (Regular, Italic, Bold) and FiraSans-v4-301/Roman/FiraSans-Regular — four woff files, all local.
+250 ms · Instagram CDN — before the banner
scontent-dus1-1.cdninstagram.com — six JPEG images from BMWSB's Instagram account load directly from Meta's servers. An embedded Instagram feed on the homepage. Before the GSB cookie banner.
+564 ms · GSB cookie banner
www.bmwsb.bund.de/SiteGlobals/Modules/CookieBanner/DE/Allgemein/CookieBanner.html — the proprietary GSB banner. By the time the banner appears, the Instagram CDN has already made six requests.

Declared versus actual

✓ Matomo (piwik.itzbund.de) — mentioned in the policy with opt-out, consent-only — declared
✓ Instagram — mentioned in the Social Media section of the policy as an external channel (without embedding on the site) — declared
✓ YouTube, Twitter/X, LinkedIn, Mastodon (social.bund.de) — mentioned as external channels — declared
+ Instagram CDN (scontent-*.cdninstagram.com) — the embedded feed on the homepage is not described in the policy — not declared

Transfer timings

+250 ms scontent-dus1-1.cdninstagram.com

Meta / Instagram CDN. Düsseldorf edge. Six feed images. Before the banner.

Detected trackers

Indicators of GDPR non-compliance

Context

BMWSB (Bundesministerium für Wohnen, Stadtentwicklung und Bauwesen) is the Federal Ministry for Housing, Urban Development, and Building. GSB platform, Apache. HAR: 50 requests, 2 domains.

Instagram CDN before the banner — the policy does not describe the embedding

At +250 ms, six JPEG images from BMWSB’s Instagram feed load from scontent-dus1-1.cdninstagram.com (Meta CDN, Düsseldorf data center). The GSB cookie banner appears at +564 ms — the Instagram CDN beats it by ~314 ms. The visitor’s IP address is transmitted to Meta’s servers on every homepage visit.

BMWSB’s privacy policy contains a Social Media section describing Instagram as an external channel that users manage on their own responsibility: “Nutzerinnen und Nutzer nutzen diese Dienste in eigener Verantwortung.” The embedding of an Instagram feed directly on the ministry’s homepage is not mentioned in the policy — a substantial discrepancy between the declared and actual behavior.

BundesSchrift v3 and Fira Sans — local

BundesSansWeb v3-014 (Regular, Italic, Bold) and FiraSans v4-301 Regular — four woff files from /static/fonts/. No Google Fonts.

CSP — a rich stack for internal pages

The Content-Security-Policy permits *.intercom.io and js.intercomcdn.com (Intercom — support chat), *.castr.com (video streaming), *.newsletter2go.com (newsletters), multiplatform-f.akamaihd.net (Akamai CDN), hls-hd.myrasec.de (Myra Security). None of these are active on the homepage.

Conclusion

www.bmwsb.bund.de does not comply with TDDDG §25(1): the Instagram CDN loads before the consent banner. The privacy policy describes Instagram only as an external channel, without disclosing the fact that a feed is embedded on the homepage.

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/bmwsb-bund-de-2026-05-29.har
SHA-256: 7853ab424a383f7aeaf5a9a5bb1eeae3fd3a3127e7b88fd0c10733085ff4df1b
Re-check snapshot
Awaiting changes
HAR files are stored on EU infrastructure (Proton Drive). SHA-256 is published for integrity verification.