The Standardized User Experience Percentile Rank Questionnaire — a concise eight-item instrument that measures the overall quality of website or application experiences across four dimensions: usability, credibility, appearance, and loyalty. SUPR-Q scores are expressed as percentile ranks against a normative benchmark database, making it straightforward to understand how a product compares to industry peers.
Common contexts
- Running a competitive benchmark before a major redesign to establish a baseline percentile rank
- Post-launch measurement to quantify credibility and loyalty gains after a trust-focused redesign
- Quarterly tracking of experience quality across multiple product lines for executive reporting
Use when
Use SUPR-Q when you need to compare your product's overall experience quality against industry norms, especially for websites where credibility and loyalty dimensions are as important as raw usability. It's particularly valuable when stakeholders need a single, defensible number to frame a redesign business case.
Avoid when
Avoid SUPR-Q when your goal is to find specific usability problems — its aggregate score will tell you you're in the 40th percentile but won't tell you why the checkout flow fails. Using it as a diagnostic tool wastes your survey budget on a metric designed for benchmarking, not problem-finding.
The percentile rank is the real power — a raw score of 68 is meaningless until you know it puts you below 70% of competitors, which is the number that finally gets redesign budget approved.
Real-world examples
- Forrester uses SUPR-Q benchmarking across banking, travel, and retail websites annually, and the data shows that brand-recognition leaders outperform feature-rich challengers on trust and loyalty subscales.
- Nielsen Norman Group validated SUPR-Q against SUS and NPS and found it predicts return-visit intent better than either, making it the preferred survey for websites where repeat engagement is the business goal.
- A government digital service used SUPR-Q before and after a redesign to demonstrate a 23-point improvement in credibility — a metric that helped justify continued investment to non-design stakeholders.