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Yoast: vendor profile

In short

Yoast's Shopify app writes an llms.txt only after the merchant opts in, listing the 10 most-sold products by default. The WordPress plugin gained Schema Aggregation in 27.1 as an opt-in endpoint. yoast.com's robots.txt points to its schemamap under /wp-json/, a path the same file disallows for every crawler. Yoast SEO Premium costs $118.80 a year before VAT.

At a glance

standards.txt yoast

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

1 supports, 0 partial or announced, 5 no statement.

Yoast Markdown or llms.txt tool

Dutch maker of the Yoast SEO plugin for WordPress and app for Shopify, part of Newfold Digital. Both can write an llms.txt, and the WordPress plugin adds a Schema Aggregation endpoint that serves a whole site's JSON-LD graph as one schemamap.

Type
Markdown or llms.txt tool
Operator, as the facts below state it
Newfold Digital
Headquarters
Netherlands
Home page
yoast.com, answered HTTP 200 on 2026-11-05
Last read
5 November 2026

What it does for this layer

  • Yoast was founded in 2010 by Joost de Valk and says its team is about 110 people, around 70 of them at its office in Wijchen, the Netherlands. [primary source] source, read 5 November 2026.
  • Yoast's press page states that the company has belonged to Newfold Digital since 2021 and sends press questions to the Newfold Digital newsroom. [primary source] source, read 5 November 2026.
  • Yoast SEO Premium for WordPress cost $118.80 a year before VAT on 2026-11-05 for one seat, with more seats at $5 a month each. [primary source, 2026-11-05] source, read 5 November 2026.
  • Yoast SEO AI+ cost $358.80 a year before VAT on 2026-11-05 and bundles Yoast WooCommerce SEO, the News, Video and Local SEO plugins, and AI Brand Insights, which tracks how answer engines mention a brand and which sources they cite. [primary source, 2026-11-05] source, read 5 November 2026.
  • Yoast SEO for Shopify costs $19 per 30 days and Yoast SEO AI+ for Shopify $45, each with a 14-day trial, and the plan table lists llms.txt generation in both tiers. [primary source, 2026-11-05] source, read 5 November 2026.
  • Yoast's Shopify llms.txt, introduced on 2026-03-31, is off until the merchant opts in; by default it lists the store's 10 most-sold products, up to 5 of its largest collections, policies and key pages, refreshes weekly, and leaves an existing /llms.txt redirect alone. [primary source, 2026-03-31] source, read 5 November 2026.
  • Yoast announced from Wijchen on 2025-11-25 a collaboration with NLWeb, Microsoft's open framework for letting AI systems query websites, built on the structured data Yoast already writes. [primary source, 2025-11-25] source, read 5 November 2026.
  • Yoast SEO 27.1, released 2026-03-03, added Schema Aggregation to the free plugin as an opt-in endpoint, switched on with a toggle, that returns the whole site's structured data as one deduplicated graph Yoast calls a schemamap. [primary source, 2026-03-03] source, read 5 November 2026.
  • Yoast SEO 28.8, dated 2026-10-27, added Yoast abilities through which an AI agent can switch llms.txt, the Schema Aggregator, XML sitemaps and Open Graph output on or off, added NLWeb's sf:contentType element to the schema map, and raised the minimum WordPress version to 7.0. [primary source, 2026-10-27] source, read 5 November 2026.
  • Yoast's developer spec for the WordPress llms.txt says markdown code blocks containing special markdown characters are not yet supported and those characters are escaped in the file. [primary source] source, read 5 November 2026.
  • On 2026-11-05 yoast.com's robots.txt advertised its schemamap with a non-standard Schemamap: line pointing under /wp-json/, the same path the file disallows for every user agent, so a crawler that obeys robots.txt is told not to fetch it. [observed, 2026-11-05] source, read 5 November 2026.
  • On 2026-11-05 yoast.com served a 7,682-byte llms.txt laid out as a product index under a Products heading, answered Accept: text/markdown on its home page with HTML, and returned 404 for a made-up path. [observed, 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.
ProductWhat it isPriceAs ofSource
Yoast SEO (WordPress)Free WordPress SEO plugin with meta tags, XML sitemaps, schema output, an opt-in llms.txt and the Schema Aggregation endpoint.Free tier, paid plans above it
free plugin; Schema Aggregation included in the free version		2026-11-05source
Yoast SEO PremiumPaid WordPress plugin adding internal linking suggestions, AI features and support.From USD 118.80
per year ex VAT, one seat; extra seats $5/month		2026-11-05source
Yoast SEO AI+Bundle of Premium-level WordPress plugins, WooCommerce SEO and AI Brand Insights monitoring.From USD 358.80
per year ex VAT		2026-11-05source
Yoast SEO for ShopifyShopify app with SEO analysis, product structured data and an opt-in llms.txt.From USD 19
per 30 days ex VAT; AI+ for Shopify $45; 14-day trial		2026-11-05source

Standards

The six standards this site tracks; no statement means the pages read said nothing.
StandardStatusWhat the vendor's pages saySource
llms-txtsupportsThe WordPress plugin and the Shopify app each generate llms.txt once the owner switches it on.source
markdown-negotiationno statementNo statement found in the Yoast product, release and spec pages read; yoast.com answered Accept: text/markdown with HTML.none
markdown-twinno statementNo per-page .md output found in Yoast's feature list or the 27.1 and 28.8 release notes.none
initial-htmlno statementNo statement found; Yoast relies on the host CMS rendering pages on the server.none
real-404no statementNo statement found on 404 status handling in the pages read.none
vary-acceptno statementNo statement found; Yoast does not negotiate formats.none

Checks on its own site

Readings of yoast.com, the vendor's own website, which describe that site and not the product.
ReadingResultDate
Home page requestHTTP 200; H1 in the initial HTML: yes; 1,080 words; 1 JSON-LD block2026-11-05
Request with Accept: text/markdownHTTP 200, text/html, Vary: Accept-Encoding, Cookie2026-11-05
/llms.txt at the host rootHTTP 200, text/plain, 7.5 KB, starts with an H12026-11-05
A made-up pathHTTP 4042026-11-05
Ora score, cached41, grade D2026-04-19
Cloudflare keyless scan20, L1 Basic Web Presence2026-11-05
Shared crawl rowTranco rank 6,834; home page HTTP 200; H1 in the HTML: yes; 1,527 words; JSON-LD types: WebPage, ImageObject, BreadcrumbList, WebSite, Organization, Brand; answers markdown: no; made-up path HTTP 404; llms.txt valid: yes2026-11-04

What it does not do

  • Yoast SEO does not convert pages to markdown or answer Accept: text/markdown; even yoast.com returned HTML to that request on 2026-11-05.

Related pages on this site

Sources

  1. Yoast: home page https://yoast.com/, read 5 November 2026
  2. About Yoast https://yoast.com/about-us/, read 5 November 2026
  3. Yoast press https://yoast.com/press/, read 5 November 2026
  4. Yoast SEO Premium https://yoast.com/product/yoast-seo-premium-wordpress/, read 5 November 2026
  5. Yoast SEO AI+ https://yoast.com/product/yoast-seo-ai-plus/, read 5 November 2026
  6. Yoast SEO for Shopify https://yoast.com/shopify/, read 5 November 2026
  7. Introducing llms.txt to Shopify https://yoast.com/yoast-seo-for-shopify-march-31-2026/, read 5 November 2026
  8. Yoast collaborates with Microsoft to help AI understand Open Web https://yoast.com/press/yoast-nlweb-microsoft-251125/, read 5 November 2026
  9. Yoast SEO 27.1 Schema Aggregation release post https://yoast.com/yoast-seo-march-3-2026/, read 5 November 2026
  10. Yoast SEO 28.8 changelog https://developer.yoast.com/changelog/yoast-seo/28.8/, read 5 November 2026
  11. llms.txt functional specification https://developer.yoast.com/features/llms-txt/functional-specification/, read 5 November 2026
  12. yoast.com robots.txt https://yoast.com/robots.txt, read 5 November 2026
  13. yoast.com llms.txt, markdown and 404 checks (observed) https://yoast.com/llms.txt, read 5 November 2026

Last reviewed 5 November 2026