Geprüfte Qualität für Produkt & Service
The German Test Institute tests products and service processes with its standardized, modular test procedure — transparently, comprehensibly and independently. Increase customer trust and increase your conversion rate with our recognized seal of approval.
More trust
Verified quality
CO₂ compensates









Verified quality





Alle Vorteile
auf einen Blick.
Ein Preis. Alles drin. Keine Aufpreise, keine versteckten Gebühren.
Two seals, double effect
With the dual DTI seals for product and service quality, you also prove the certified quality of your product and service processes. This double award makes excellence visible at a glance and demonstrably strengthens the trust of your customers.


Verified quality
Our certification has been proven to result in a significant increase in sales. Use the trust that our seal creates with your customers to drive up your sales figures.
A standardized questionnaire examines your product in seven clearly defined quality categories and provides objective, independent results that consumers can rely on.
Test
institute
ENG
TIGHT
FRA
ITA
ESP
NLD
SWE
POL
POL
Multilingual seals strengthen your international market presence and build trust with a wider target group.


your product
€€€€€
This detailed report highlights strengths and weaknesses and provides valuable insights for your product improvement.
All tests and results carried out are transparent and can be viewed on our online portal at any time.
Product and
Service certification
The DTI checks product and service quality separately and awards two independent, legally certified seals in return. A standardized questionnaire ensures objective comparability, makes the tested quality transparently comprehensible and demonstrably strengthens the trust of your customers.



Platzieren Sie das DTI-Siegel prominent in Shop, Werbung und auf Verpackungen. Konsumenten erkennen geprüfte Qualität sofort – das steigert Klick- und Kaufraten.
Unabhängig verifizierte Qualität reduziert Kaufzweifel. Shops mit DTI-Siegel erzielen erfahrungsgemäß deutlich höhere Abschlussraten.
Mehr Conversions bedeuten geringere Kosten pro Verkauf und einen höheren ROI. Gleichzeitig verbessert das Siegel langfristig Ihren Customer Lifetime Value.