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 |
|---|---|---|
| Category Content - Other Store design > Content > Content - Other | 2.23%1.81 | Declining |
| Keyword llms.txt | 1.79%2.84 | Declining |
| Keyword perplexity | 1.75%0.79 | Climbing |
| Category Content Store design > Content | 0.31%0.22 | Declining |
| Keyword Sitemaps | 0.04%0.06 | Declining |
| Category SEO Store design > Site optimization > SEO | 0.03%0.03 | Declining |
| Category Site optimization Store design > Site optimization | 0.03%0.02 | Declining |
| Keyword Robots.txt | 0.02%0.01 | Climbing |
| Category Store design | 0.01%0.01 | Declining |
| Keyword gemini | 0.01%0.01 | Declining |
Showing 1-10 out of 10
Key Insights:
- Arc: llms.txt captures 2.2% of installs in Content - Other — its strongest position among the 10 Shopify groups shown.
- Over the past 30 days, 2 gained share and 8 lost share — net downward pressure.
- llms.txt saw the sharpest contraction (-2.84pp) — worth checking whether the dip is short-term or sustained.
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 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 | Nov 2026 |
|---|---|---|---|---|---|---|
| Category Content - Other | 9.56% | 8.93%1 | 5.69%3 | 4.44%1 | 2.91%2 | 2.23%1 |
| Keyword Llms.Txt | — | 4.45% | 6.80%2 | 5.15%2 | 4.08%1 | 1.79%2 |
| Keyword Perplexity | — | 0.93% | 0.73%0 | 1.27%1 | 1.69%0 | 1.75%0 |
| Category Content | 1.19% | 1.13%0 | 0.73%0 | 0.56%0 | 0.40%0 | 0.31%0 |
| Keyword Sitemaps | — | 0.06% | 0.19%0 | 0.03%0 | 0.05%0 | 0.04%0 |
Key Insights:
- Arc: llms.txt's biggest share gain is in Perplexity — expanded from 0.9% to 1.8% over the charted period.
- Across the 5 plotted groups, Arc: llms.txt expanded share in 1 and contracted in 4.
Top Categories Arc: Llms.Txt Ranks In on Shopify
- Category Content - Other — Holds 2.2% market share in this category (-1.81pp this month) — slipping in this category.
- Keyword llms.txt — Holds 1.8% market share in this keyword (-2.84pp this month) — slipping in this keyword.
- Keyword perplexity — Holds 1.8% market share in this keyword (+0.79pp this month) — Arc: llms.txt's growing footprint here.
- Category Content — Holds 0.3% market share in this category (-0.22pp this month) — slipping in this category.
- Keyword Sitemaps — Holds 0.0% market share in this keyword (-0.06pp this month) — slipping in this keyword.
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 — 2.2% of the group's tracked install base, followed by 1.8% in llms.txt and 1.8% in perplexity. 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 is contracting in more groups than it's expanding. llms.txt saw the sharpest dip this month — switch to "Market Share Changes" to see the full distribution and check whether the contractions cluster around a shared theme.
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. How often does Arc: llms.txt's Shopify market share update?
Share figures are recomputed weekly from the latest review data. Arc: llms.txt is currently losing share in more groups than it's gaining — the trend chart's date range filter lets you check whether the slide started recently or has been ongoing.
