Arc: Llms.Txt Shopify App – Market Share & Install Footprint
(Updated September 2026) Track Arc: llms.txt's estimated install share within every Shopify App Store group it appears in — categories, keywords, and collections — with current %, 30-day change, and Growing / Stable / Declining status. Create llms.txt for your store by AI. And get mentioned in ChatGPT, Claude. llms.txt is AI Sitemap.
Arc: Llms.Txt — Market Share Across Shopify App Store Groups
Arc: llms.txt's estimated install share within each Shopify App Store group it appears in — categories, keywords, and collections — with current %, status (Growing / Stable / Declining), and 30-day change. Filterable by date range and sortable by share or share change.
| Category/Keyword | Market Share | Status |
|---|---|---|
CategoryContent - Other Store design > Content > Content - Other | 8.72%1.17 | Declining |
Keywordllms.txt | 4.33%4.33 | Growing |
Keywordclaude ai | 2.17%2.17 | Growing |
CategoryContent Store design > Content | 1.10%0.11 | Declining |
Keywordperplexity | 0.92%0.92 | Growing |
CategorySEO Store design > Site optimization > SEO | 0.14%0.02 | Declining |
CategorySite optimization Store design > Site optimization | 0.12%0.01 | Declining |
KeywordSitemaps | 0.06%0.06 | Growing |
CategoryStore design | 0.06%0.01 | Declining |
Keywordgemini | 0.03%0.03 | Growing |
Showing 1-10 out of 11
Key Insights:
- Arc: llms.txt captures 8.7% of installs in Content - Other — its strongest position among the 10 Shopify groups shown (11 groups in total).
- Over the past 30 days, 5 gained share and 5 lost share — a mixed share picture.
Arc: Llms.Txt — Market Share Trend Across Top Groups
Monthly market share trajectory for Arc: llms.txt across its top 5 Shopify App Store groups over the past year — pick categories or keywords to plot, filter by country, and switch sub-tabs for absolute share or per-interval change.
Charts Data
| Category / Keyword | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Llms.Txt | — | — | — | 4.35% | 6.65%2.3 | 5.16%1.49 |
| Content - Other | 12.96% | 11.15%1.81 | 9.52%1.63 | 8.67%0.85 | 5.41%3.26 | 4.27%1.14 |
| Perplexity | — | — | — | 0.92% | 0.72%0.2 | 1.26%0.54 |
| Content | 1.63% | 1.35%0.28 | 1.16%0.19 | 1.10%0.06 | 0.71%0.39 | 0.56%0.15 |
| Seo | 0.22% | 0.18%0.04 | 0.15%0.03 | 0.14%0.01 | 0.09%0.05 | 0.07%0.02 |
Key Insights:
- Arc: llms.txt's biggest share gain is in Llms.Txt — expanded from 4.3% to 5.2% over the charted period.
- Across the 5 plotted groups, Arc: llms.txt expanded share in 2 and contracted in 3.
Top Categories Arc: Llms.Txt Ranks In on Shopify
- CategoryContent - Other — Holds 8.7% market share in this category (-1.17pp this month) — slipping in this category.
- Keywordllms.txt — Holds 4.3% market share in this keyword (+4.33pp this month) — Arc: llms.txt's growing footprint here.
- Keywordclaude ai — Holds 2.2% market share in this keyword (+2.17pp this month) — Arc: llms.txt's growing footprint here.
- CategoryContent — Holds 1.1% market share in this category (-0.11pp this month) — slipping in this category.
- Keywordperplexity — Holds 0.9% market share in this keyword (+0.92pp this month) — Arc: llms.txt's growing footprint here.
Arc: Llms.Txt on Shopify — Market Share FAQs
1. Where does Arc: llms.txt have the most market share on Shopify?
Arc: llms.txt captures the largest share of installs in Content - Other — 8.7% of the group's tracked install base, followed by 4.3% in llms.txt and 2.2% in claude ai. Sort the table by Share to see the full ordered list.
2. Which Shopify categories is Arc: llms.txt gaining or losing share in?
Arc: llms.txt's share movement is mixed this month — gaining in some groups, holding or slipping in others. Use the "Market Share Changes" sub-tab to find both the climbers and the decliners ordered by movement size.
3. How is Arc: llms.txt's Shopify market share calculated?
Market share is estimated from each app's review velocity within a group, used as a proxy for install share. For category and collection groups, it's a straight share-of-reviews calculation; for keyword groups, ranking position is weighted (rank #1 ≈ 40× the weight of rank #22, with apps beyond #22 excluded) since search traffic concentrates heavily at the top. The Country filter on the table re-computes share using only that country's reviews.
4. In how many Shopify groups does Arc: llms.txt hold market share?
Arc: llms.txt appears in 11 Shopify App Store groups in total — categories, keywords, and collections combined. The table above lists the top 10 where it captures the largest share; paginate or sort by Change to see the rest.
5. How often does Arc: llms.txt's Shopify market share update?
Share figures are recomputed weekly from the latest review data. Significant share changes typically take 2–4 weeks to manifest because the underlying review base moves slowly; switch the chart's granularity to Weekly to spot inflection points within the noise.
