Asda ranks #18 of 22 UK retail sites with a B (85%) quality score vs the 85% category average. 149 issues detected vs 123.7 avg. Biggest competitive gap: Security issues (23 vs 9.5 avg, +14 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 9.5). Start with: "Content Security Policy Misconfiguration - script-src 'none'".