Legal and contact information for zzd, per the Swiss Unfair Competition Act (UCA art. 3). zzd is a one-person sole proprietorship (Einzelunternehmen). Small operation, real human.

Operator
zzd
Legal form
Sole proprietorship (Einzelunternehmen) · Switzerland
Profession
Web design and development
Address
5000 Aarau · Aargau · Switzerland
Contact
hello@zzd.ch
Owner & responsible for content
Yelin Zhang · hello@zzd.ch

Swiss law (Unfair Competition Act, UCA art. 3) requires a sole proprietorship to publish the owner's full first and last name — that is the only reason it appears here. The full postal address is available on request. As a one-person business below the CHF 100'000 VAT threshold, zzd is not VAT-registered, so there is no UID/VAT number to display.