Shopify: vendor profile

In short

Shopify lets a theme publish llms.txt and llms-full.txt through Liquid templates beside agents.md, an option its developer changelog added on 2026-05-28. One Shopify storefront answered a markdown request with a text/markdown header and an HTML body. Basic costs $29 a month billed yearly.

At a glance

standards.txt shopify

llms-txt               = supports
markdown-negotiation   = no statement
markdown-twin          = no statement
initial-html           = supports
real-404               = no statement
vary-accept            = no statement

2 supports, 0 partial or announced, 4 no statement.

Shopify Site builder

Shopify is a hosted commerce platform whose Online Store themes render Liquid templates on the server, serve agents.md with llms.txt mirrors, a 404 template, a generated robots.txt and sitemap, and JSON-LD through a Liquid filter.

Type: Site builder
Home page: www.shopify.com, answered HTTP 200 on 2026-11-05
Last read: 5 November 2026

What it does for this layer

Liquid, the template language Shopify themes are written in, was created by Shopify and is published as an open-source project on GitHub. [primary source] source, read 5 November 2026.
A Shopify theme's 404 page comes from templates/404.json, and the theme docs suggest no objects for it beyond making clear that the page was not found. [primary source] source, read 5 November 2026.
Asked by curl 8.7.1 for a made-up path, the Shopify storefront www.allbirds.com returned HTTP 404 with a 421,495-byte HTML page and Vary: Accept on 2026-11-05. [observed, 2026-11-05] source, read 5 November 2026.
On 2026-11-05 the same Shopify storefront answered a curl 8.7.1 request with Accept: text/markdown on its home page with a text/markdown content type and Vary: Accept, yet the 702,741-byte body opened as an HTML document. [observed, 2026-11-05] source, read 5 November 2026.
Shopify's developer changelog of 2026-05-28 introduced llms.txt.liquid and llms-full.txt.liquid next to agents.md.liquid, each edited under Online Store, Themes, Edit code. [primary source, 2026-05-28] source, read 5 November 2026.
www.allbirds.com served /llms.txt to curl 8.7.1 on 2026-11-05 as text/markdown rather than text/plain, 5,793 bytes long, with Vary: Accept. [observed, 2026-11-05] source, read 5 November 2026.
Shopify keeps the theme-root AGENTS.md, a file of up to 50 KB that briefs coding agents such as Sidekick, apart from the public /agents.md, and never serves the theme-root file on the storefront. [primary source] source, read 5 November 2026.
Shopify generates a default robots.txt, and a robots.txt.liquid file in the theme's Templates folder replaces that output, with the robots object supplying the default rule groups. [primary source] source, read 5 November 2026.
Shopify's structured_data Liquid filter turns a product into schema.org Product, or ProductGroup when it has variants, and an article into schema.org Article, for the theme to print inside a JSON-LD script tag. [primary source] source, read 5 November 2026.
Every Shopify store generates sitemap.xml at the root of each of its domains, linking separate sitemaps for products, collections, blogs and pages, and refreshes it when content is added. [primary source] source, read 5 November 2026.
The Shopify pricing page read on 2026-11-05 listed Basic at $29 a month billed yearly or $39 monthly, Grow at $79, Advanced at $299 and Plus from $2,300 a month. [primary source, 2026-11-05] source, read 5 November 2026.

Products and plans

Plans and prices as the vendor's own pages showed them on the date read.
Product	What it is	Price	As of	Source
Shopify plans	Hosted store plans that include the Online Store theme storefront.	From USD 29 Basic, per month billed yearly; $39 billed monthly	2026-11-05	source
Shopify Plus	Enterprise commerce plan.	From USD 2,300 per month	2026-11-05	source

Standards

The six standards this site tracks; no statement means the pages read said nothing.
Standard	Status	What the vendor's pages say	Source
llms-txt	supports	Every store has a default agents.md, and /llms.txt and /llms-full.txt point to that content unless a theme template overrides them.	source
markdown-negotiation	no statement	No statement in the theme, changelog or Liquid docs read; a storefront home page answered Accept: text/markdown on 2026-11-05 with a markdown content type on an HTML body.	source
markdown-twin	no statement	No statement about per-page markdown copies found; agents.md and llms.txt are store-level files.	none
initial-html	supports	Online Store themes are Liquid templates that Shopify renders with store data; headless Hydrogen storefronts are not covered by the pages read.	source
real-404	no statement	The 404 template docs do not give the status code; a storefront returned 404 for a made-up path on 2026-11-05.	source
vary-accept	no statement	No statement found; storefront responses on 2026-11-05 carried Vary: Accept.	source

Checks on its own site

Readings of shopify.com, the vendor's own website, which describe that site and not the product.
Reading	Result	Date
Home page request	HTTP 200; H1 in the initial HTML: yes; 564 words; 0 JSON-LD blocks	2026-11-05
Request with Accept: text/markdown	HTTP 200, text/html, Vary: accept-encoding	2026-11-05
/llms.txt at the host root	HTTP 200, text/plain, 12 KB, starts with an H1	2026-11-05
A made-up path	HTTP 404	2026-11-05
Ora score, cached	72, grade B	2026-11-04
Cloudflare keyless scan	20, L1 Basic Web Presence	2026-11-05
Shared crawl row	Tranco rank 171; home page HTTP 200; H1 in the HTML: yes; 1,133 words; JSON-LD types: none; answers markdown: no; made-up path HTTP 404; llms.txt valid: yes	2026-11-04

What it does not do

Shopify does not serve the theme-root AGENTS.md to shoppers or shopping agents; only agents.md.liquid output reaches /agents.md.

Related pages on this site

Sources

Shopify: home page https://www.shopify.com/, read 5 November 2026
Liquid reference | Shopify Dev https://shopify.dev/docs/api/liquid, read 5 November 2026
404 template | Shopify Dev https://shopify.dev/docs/storefronts/themes/architecture/templates/404, read 5 November 2026
Customize /llms.txt, /llms-full.txt and /agents.md | Shopify developer changelog https://shopify.dev/changelog/posts/customize-llmstxt-llms-fulltxt-and-agentsmd, read 5 November 2026
AGENTS.md | Shopify Dev https://shopify.dev/docs/storefronts/themes/agentic-workflows/agents-md, read 5 November 2026
Customize robots.txt | Shopify Dev https://shopify.dev/docs/storefronts/themes/seo/robots-txt, read 5 November 2026
Liquid filters: structured_data | Shopify Dev https://shopify.dev/docs/api/liquid/filters/structured_data, read 5 November 2026
Finding and submitting your sitemap | Shopify Help Center https://help.shopify.com/en/manual/promoting-marketing/seo/find-site-map, read 5 November 2026
Shopify Pricing https://www.shopify.com/pricing, read 5 November 2026

Last reviewed 5 November 2026