AI Search Audit Membership Retail
costco.co.uk

700,000 paying members.
Cited on branded queries.
Absent on the categories that grow them.

Strong on branded queries, absent on category. Domain authority lifts Costco for searches that name the brand. The on-page citation factors that would lift Costco for category queries (best wholesale store UK, bulk shopping for family UK) are missing.

52
Composite Score
Needs Work
52Search
48Design
62Brand
58Compete
55Growth
Root cause · Structural
A brand that AI knows by name, not by category.

Costco's branded surfacing is real (Bing snippet quotes "starting from £15" directly; Brave surfaces five Costco URLs in the top 10 for membership queries). The gap is on category queries. AI engines pull answers for "best wholesale store UK" and "bulk shopping for family UK" from MoneySavingExpert, Bestway, MX Wholesale, Aldi, Lidl, and Reddit threads. Costco is not in that conversation, despite being structurally the closest match.

01
No H1 on the homepage or /membership
The two highest-intent pages have no top-level heading. AI engines use H1 as the primary topical anchor; without it, the page reads as topically ambiguous.
02
Zero schema markup, site-wide
No Organization, Product, FAQPage, or Offer schema. AI engines preferentially cite sources with structured data; costco.co.uk gives them nothing structured to cite.
03
Warehouse-format mismatch on category queries
Costco's commercial advantage (members-only, in-store bulk) is not legible to AI on category queries. The /membership page reads as a brochure, not a queryable product catalogue, so when AI is asked "best wholesale store UK" or "where can I buy in bulk", Bestway and pound-shop wholesalers win the citation. Branded queries are unaffected.
AI Visibility Maturity Curve · F&T /18 methodology
Cited
AI Share of Voice · Google 2/6 · Bing 2/6 · Brave 2/6 · Composite 6/18 (bottom edge of the Cited band)
Under F&T's /18 methodology (6 queries × 3 engines, β-strict math), Costco UK lands at the bottom edge of the Cited band. The pattern is consistent with a global brand benefiting from domain authority on branded queries (Bing surfaces the £15 fee snippet directly; Brave returns five Costco URLs in the top 10 for membership cost) while remaining absent from category queries (best wholesale store UK, bulk shopping for family UK). The lift from here is structural extractability on the /membership page, not more content.
Blocked
Invisible
Emerging
Cited
Full audit available
The 18-cell grid (6 queries by 3 engines), the brand reputation finding on Q2, the Citation Host Map for warehouse retail, the Vendor Bake-Off Readiness verdict, and the named Top Action live in the full report.
Read the full AI Search Report →
Cohort callout · May 2026

Of 5 globally-famous brands tested under F&T's AI Search methodology in May 2026, 0 reached Recommended · 4 Cited · 0 Emerging · 0 Invisible · 1 Blocked.

The pattern across the Cited cohort: AI knows these brands by name, not by category. Branded queries surface the brand's own URLs; category queries route to editorial reviewers, comparison sites, or Reddit. The 1 Blocked brand is structurally different: robots.txt closure, not content gap.