Verified quality
for product & service
Deutsches Test Institut tests products and service processes using a standardized, modular protocol – transparent, traceable and independent. Strengthen customer trust and increase conversion with our recognized quality seal.
Greater trust
Verified quality
CO₂ offset
Verified quality
All benefits
at a glance.
One price. Everything included. No add-ons, no hidden fees.
Two seals, double the impact
With the dual DTI seals for product and service quality, you demonstrate the verified quality of both your product and your service processes. This twin certification makes excellence visible at a glance – and measurably strengthens customer trust.
Verified quality
Our certification demonstrably leads to a significant increase in sales. Leverage the trust created by our seal to boost your numbers.
A standardized questionnaire examines your product across seven clearly defined quality categories and delivers objective, independent results that consumers can rely on.
Packaging & sustainability- Scope of delivery & accessories
- Material quality & safety
- Ease of use & ergonomics
- Performance & efficiency
- Durability & resistance
- Product-specific features
- Packaging & sustainability
- Scope of delivery & accessories
- Material quality & safety
- Ease of use & ergonomics
- Performance & efficiency
- Durability & resistance
- Product-specific features
Test
Institut
ENG
TIGHT
FRA
ITA
ESP
NLD
SWE
POL
POL
Multi-language seals strengthen your international market presence and build trust with a broader audience.
your product
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The in-depth report highlights strengths and improvement areas and provides valuable insights for product optimization.
All conducted tests and results are transparent and can be accessed at any time via our online portal.
Product and
service certification
Deutsches Test Institut (DTI) evaluates product and service quality separately and awards two independent, legally compliant licensed seals. A standardized questionnaire ensures objective comparability, makes verified quality transparently traceable and measurably strengthens customer trust.
Place the DTI seal prominently in your shop, advertising and on packaging. Consumers recognize verified quality instantly – boosting click-through and conversion rates.
Independently verified quality reduces purchase hesitation. Shops featuring the DTI seal typically achieve significantly higher conversion rates.
More conversions mean a lower cost per sale and a higher ROI. At the same time, the seal improves your customer lifetime value over the long term.
