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Technical audit · 2026-05-26

wohnbauforschung.at

Vienna Housing Research Portal, MA 50
AT

Vienna's housing research portal — 42 requests, 1 domain. Zero external requests. But the privacy policy describes Google Analytics with an opt-out scheme and treats the mere fact of visiting the site as consent — a classic pre-GDPR pattern.

Timeline of the leak

+0 ms · load
All 42 requests go to www.wohnbauforschung.at. No external requests — jQuery, Bootstrap, Font Awesome, and other libraries are hosted locally under /lib/.
Session total
Google Analytics did not appear in the HAR. It may be disabled or inactive on the current version of the site — but the policy still describes it as active.

Declared versus actual

✓ Google Analytics — declared in the policy, absent from the HAR — declared

Indicators of GDPR non-compliance

Context

wohnbauforschung.at is the City of Vienna’s housing research portal, operated by UIV Urban Innovation Vienna GmbH on behalf of MA 50 (Wiener Wohnbauförderung). HAR: 42 requests, 1 domain.

Local infrastructure

42 requests — all to www.wohnbauforschung.at. No external dependencies. jQuery, Bootstrap, Font Awesome, Lightbox — all hosted locally under /lib/. Apache 2.4.67 on Debian. Zero cookies, zero external requests.

A policy from the past

Google Analytics is declared, but did not appear in the HAR — it may in fact no longer be active. Yet the privacy policy describes it as an active tool — and does so using a scheme that became outdated with the introduction of GDPR in 2018: consent is deemed to arise from the mere fact of visiting the site (“Nutzer dieser Website stimmen den Bestimmungen zum Datenschutz zu”), and instead of opt-in, an opt-out via a Google browser plugin is offered. No banner, no CMP, no Art. 6(1)(a) legal basis.

Conclusion

In practice, this is a clean HAR — one domain, zero trackers. On paper, the privacy policy describes Google Analytics using a pre-compliant consent scheme. If Google Analytics is ever reactivated, it will run without any user consent — because the policy already “permits” it.

Evidence
Original (audit)
HAR file: at/wohnbauforschung-at-2026-05-26.har
SHA-256: 21b2f281c993bcef0c453b765af99afc73298b87268a61b26a48bae3f698a755
Re-check snapshot
Awaiting changes
HAR files are stored on EU infrastructure (Proton Drive). SHA-256 is published for integrity verification.
IMPORTANT: before filing a complaint with the regulator, first contact the company directly and give it 30 days to respond. Without this step the regulator may reject the complaint. Details and a template letter to the company are in the Methodology.
Ready-to-send complaint letter

Where to file: Datenschutzbehörde (DSB) — file a complaint online →

To: Datenschutzbehörde (DSB)
From: [Your name], [contact email]

1. Subject of the complaint
I am filing a complaint regarding the processing of my personal data by the website wohnbauforschung.at.

2. Circumstances
I visited the website wohnbauforschung.at and found indications that the processing of my personal data does not comply with the GDPR. The technical analysis published on gdpru.eu on 26 May 2026 (open methodology, reproducible measurements) documents the following indications:

1) Google Analytics is declared in the privacy policy without a consent-based legal basis. The policy offers opt-out via a browser plugin instead of opt-in. User consent is presumed from the mere fact of visiting the site ("Nutzer stimmen den Bestimmungen zu").

Full technical documentation is published at: https://gdpru.eu/en/audits/at-wohnbauforschung-at/

3. Provisions violated
GDPR Art. 6(1)(a), Art. 7

4. Request
I request that you investigate the violations described and apply the measures provided for in Article 58(2) GDPR.

5. Attachments
The full evidence base — the HAR file, its SHA-256 checksum and the quotation from the site's privacy policy documenting the stated contradiction — is published and verifiable at the link in point 2 above.

[Date]                                    [Signature / name]