AI Readiness benchmark for Marketplace
Across 211 audited domains we have classified as Marketplace, the median AI Readiness score is 37 out of 100. That is 2 points below the median for all 30,738 audited domains in the corpus (39).
How the scores are distributed
Half of the 211 audited Marketplace domains score between 31 and 43. The corpus-wide interquartile range, across all 30,738 audited domains, is 32 to 45.
Which factors this industry fails most often
The rubric scores 19 factors. A factor counts as failed here when a site scores below 50 out of 100 on it. The last column is how many audits each rate was calculated from. Question Coverage & FAQ Presence and Media Accessibility are not scored on every kind of page: a rankings table or a paginated index has no question to answer and no image to caption. Citation-Worthiness, E-E-A-T Signals and Question Coverage & FAQ Presence lean on English-language patterns, so on a page written in another language they are scored out of a smaller total. Those rows therefore leave out every audit of a page the factor was not scored on the same scale, and every audit that did not record enough about the page for us to tell. Every other row counts every audit in this industry that scored the factor.
| Factor | Fails in Marketplace | Fails corpus-wide | Difference | Audits counted |
|---|---|---|---|---|
| Citation-Worthiness AI Readiness · 7.5% of the total score · counted only on pages in a language it measures in full |
100% | 94% | +6 | 46 |
| E-E-A-T Signals Authority Signals · 7% of the total score · counted only on pages in a language it measures in full |
100% | 89% | +11 | 46 |
| Question Coverage & FAQ Presence On-Page Content · 6.5% of the total score · counted only on pages this factor applies to, in a language it measures in full |
100% | 85% | +15 | 43 |
| Structured Data Quality On-Page Content · 4.5% of the total score |
94% | 96% | -2 | 211 |
| Unique Value Proposition AI Readiness · 5.1% of the total score |
91% | 94% | -3 | 211 |
| Media Accessibility On-Page Content · 1.8% of the total score · counted only on pages this factor applies to |
90% | 87% | +3 | 183 |
| External Citations & References Authority Signals · 9% of the total score |
79% | 83% | -4 | 211 |
| Trust & Brand Signals Authority Signals · 9% of the total score |
79% | 74% | +5 | 211 |
| Answer Box Potential AI Readiness · 7.2% of the total score |
76% | 68% | +8 | 211 |
| Schema Markup Completeness Technical Optimization · 1% of the total score |
67% | 63% | +4 | 211 |
| Crawlability & Accessibility Technical Optimization · 13% of the total score |
55% | 46% | +9 | 211 |
| Content Freshness AI Readiness · 5.7% of the total score |
48% | 49% | -1 | 211 |
| AI Discoverability AI Readiness · 3% of the total score |
40% | 34% | +6 | 211 |
| Heading Hierarchy On-Page Content · 2.8% of the total score |
34% | 28% | +6 | 211 |
| Raw HTML Availability AI Readiness · 1.5% of the total score |
29% | 24% | +5 | 211 |
| Page Performance Indicators Technical Optimization · 2% of the total score |
26% | 20% | +6 | 211 |
| Mobile Optimization Technical Optimization · 4% of the total score |
24% | 14% | +10 | 211 |
| Content Depth & Comprehensiveness On-Page Content · 6.5% of the total score |
18% | 14% | +4 | 211 |
| AI Readability Score On-Page Content · 3% of the total score |
12% | 8% | +4 | 200 |
Where Marketplace diverges from everyone else
Relative to the whole corpus, this industry is distinctively weak on Question Coverage & FAQ Presence (+15 points), E-E-A-T Signals (+11 points), Mobile Optimization (+10 points).
It is distinctively strong on External Citations & References (-4 points), Unique Value Proposition (-3 points), Structured Data Quality (-2 points).
Question Coverage & FAQ Presence: fails on 100% of the 43 Marketplace audits it was measured on
Covering the sub-questions users actually ask is the single strongest diagnosed lever: contextual gaps and intent divergence explain most zero-citation failures. FAQ formatting by itself is not the lever; answering the questions is.
E-E-A-T Signals: fails on 100% of the 46 Marketplace audits it was measured on
No study tests author bios as a causal AI-citation lever; the real authority channel is off-site brand footprint. On-page bylines and dates are kept as best-practice hygiene at reduced weight.
Mobile Optimization: fails on 24% of the 211 Marketplace audits it was measured on
No AI-engine evidence exists for mobile signals; this is classic search hygiene (Google page experience) retained at a modest weight.
Audited Marketplace sites with a public report card
Each of these sites has a public AI Readiness report card from a real audit. Scores are point-in-time; the card shows what was measured and when.
| Site | Grade | Score | Audited |
|---|---|---|---|
| kaitori-daikichi.jp | Grade A | 69/100 | 20 Aug 2026 |
| TIME BOMB RECORDS (timebomb.co.jp) | Grade A | 61/100 | 15 Sep 2026 |
| 全国展開の買取専門店 ジュエルカフェ【公式】 (jewel-cafe.jp) | Grade A | 59/100 | 15 Sep 2026 |
| PChome 24h購物 (24h.pchome.com.tw) | Grade A | 58/100 | 15 Sep 2026 |
| トップ (bookoffonline.co.jp) | Grade A | 58/100 | 15 Sep 2026 |
| メロンブックス 国内最大級の同人 (melonbooks.co.jp) | Grade B | 57/100 | 15 Sep 2026 |
| ランサーズ株式会社コーポレートサイト (Lancers,Inc.) (lancers.co.jp) | Grade B | 56/100 | 15 Sep 2026 |
| 全國電子 (www.elifemall.com.tw) | Grade B | 55/100 | 15 Sep 2026 |
| 樂天市場購物網 (rakuten.com.tw) | Grade B | 54/100 | 20 Aug 2026 |
| メイクマン【公式】 (makeman.co.jp) | Grade B | 54/100 | 15 Sep 2026 |
| www.parche.co.jp | Grade B | 53/100 | 16 Sep 2026 |
| 大垣書店 (books-ogaki.co.jp) | Grade B | 53/100 | 15 Sep 2026 |
Browse every audited site in the public audit archive.
See the full ranked list of 36 Marketplace sites →
How to read this
- What the sample is. The 211 domains we have audited and classified as Marketplace. That is a sample of the industry, not a census: it is the set of sites our crawler has reached and scored, and it carries whatever bias that selection has.
- Rubric version 2026-08-13. Every figure here comes from audits scored on this single rubric generation. Scores from different generations measure different things, so they are never mixed. Compatible generations: 2026-08-13.
- Why there are no company names. These are aggregates. We do not publish which domains sit at the bottom of a distribution, and the queries behind this page cannot return a domain name.
- Publishing floor. We publish an industry only once it reaches 100 audited domains, and a factor's failure rate only once 30 audits in the industry count toward that factor. Below either floor the number would move with a handful of sites, so we withhold it.
- What the audit can and cannot see. This audit measures citation readiness: how easily AI engines can crawl, extract, and quote these pages. It cannot see the off-site brand footprint (mentions, reviews, third-party coverage) that gates whether AI engines retrieve a brand at all; Kuroma's visibility scans and off-site signals track that side. Read the full methodology.