Wellness in Köln (Nordrhein-Westfalen)

Köln
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Wellness Köln: Businesses and reviews

How to rate your visit in Köln — genuine and verifiable

McGesund reviews are created on site in Köln, with geo check and signature — no fake, no bot. Three steps: scan the QR, tap four criteria, done. You can spot businesses in Köln that already have a QR code on display by these symbols in the listings:

McGesund
Scan QR code

Example. Not scannable. Please hover with the mouse.

SLO-MOVIDEOFOTOPORTRAITPANO

Scan QR code on site

Scan the QR code at reception, counter or in the waiting room — only on-site scans count. Mass campaigns and fake reviews are technically impossible.

McGesund
Submit review

Friendliness

Reliability

Hygiene standard

Professionalism

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Submit review

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Rate across four criteria

You rate across four dimensions — friendliness, hygiene, reliability, professionalism — plus an optional experience report. Geo check and cryptographic signature make your submission audit-proof.

McGesund
Verify authenticity

  • Conventional signature (Ed25519)

    Mathematically confirmed

  • Post-quantum signature (Falcon-1024)

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  • Key anchored in Bitcoin

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  • Text, rating and location unchanged since submission

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Verify authenticity yourself

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Verifiable at any time

Your review appears with an authenticity check mark on the profile. Others can re-verify the authenticity in their browser — Bitcoin-anchored, without having to trust McGesund.