Asda ranks #17 of 20 UK retail sites with a B (84%) quality score vs the 85% category average. 149 issues detected vs 130.2 avg. Biggest competitive gap: Security issues (23 vs 10.3 avg, +13 above peers). Competitive strengths: fewer issues than avg in A11y.

Below the median — but that means clear opportunity to differentiate. Biggest ROI: fix the 23 Security issues (peers average 10.3). Start with: "Content Security Policy Misconfiguration - script-src 'none'".