How to Mark Up a Whole Website as One JSON-LD Graph

Give every entity one @id and reference it everywhere else, instead of copying. That is how musklr.com marks up 23 pages as one JSON-LD graph: 135 identified entities connected by 229 edges, with the Person node on jan.sviland.org. A validator with 26 rules checks every deploy, because hand-written markup drifts silently. The full graph is drawn below.

A post about structured data may look off topic for a workout app. It is not: the blog is part of how people find Musklr, and much of what reads it now is not a person scrolling results but a machine deciding what to quote. This post is the write-up of making musklr.com readable to those machines, and it demonstrates itself: everything it describes runs on the page you are looking at.

What is JSON-LD structured data on a website?

JSON-LD is a block of JSON inside a script tag that describes what a page is about, in a vocabulary machines share: schema.org. Search engines and assistants read it to learn, without guessing from prose, what a page is, who wrote it and when. Here is the first node every musklr.com page carries:

{
  "@type": "Organization",
  "@id": "https://musklr.com/#org",
  "name": "Musklr",
  "url": "https://musklr.com/",
  "logo": "https://musklr.com/icons/icon-512.png",
  "email": "support@musklr.com",
  "founder": { "@id": "https://jan.sviland.org/#person" }
}

That says: there is an organization called Musklr, with a site, a logo and a support address. Every property states something a visitor can check.

Two older formats, microdata and RDFa, weave the same information through the visible HTML. I chose JSON-LD because it keeps the whole claim in one block: markup that lives inside the layout gets edited by every redesign, while one block can be read by one test.

What do @graph and @id do in JSON-LD?

A page rarely describes one thing. The page you are reading describes an article, its author, its lead image, its breadcrumb trail, its FAQ, and the site all of it belongs to. @graph is simply the array that holds all of those nodes in one script block, and @id gives each node a name: a URL that identifies the entity, unique across the whole web. Here is the author node exactly as every musklr.com page carries it:

{
  "@type": "Person",
  "@id": "https://jan.sviland.org/#person",
  "name": "Jan Sviland",
  "url": "https://jan.sviland.org/"
}

The interesting part is the address. The @id does not live on musklr.com at all. That is allowed, and it is the whole trick behind the next two sections.

Why use @id references instead of copying JSON-LD nodes?

Once a node has an @id, every other node can point at it instead of repeating it. A publisher property containing {"@id": "https://musklr.com/#org"} means "the organization defined over there", nothing more. Across the 23 pages of musklr.com, entities are referenced 344 times this way. Deduplicated, that is 229 distinct edges between 135 entities.

A copy looks just as good as a reference on day one. The difference shows the first time a fact changes. Twenty-three copies of a support address is twenty-three chances to update twenty-two of them. A reference cannot go stale, because the only thing it stores is the name.

How can one JSON-LD graph span two different domains?

The author of everything on musklr.com is me, and my canonical Person node lives on my own site: jan.sviland.org/#person. Musklr's pages do not redefine me. They carry a stub, the four-line node above, and the full definition lives on the page the @id resolves to.

I call it the stub rule, and it exists because the failure without it is quiet: define the same person fully on both sites, let the two definitions drift apart, and a machine eventually sees two people who merely share a name. It runs the other way too: the SoftwareApplication node for Musklr is owned by musklr.com, and my portfolio refers to it by @id instead of describing its own version.

Measured on the shipped pages: the Person is stub-defined 23 times, once per page, and referenced 49 times, which makes it and the Organization the hubs of the whole graph. Remove that one cross-domain @id and the graph falls apart into 23 islands.

Why does hand-written JSON-LD need a validator?

musklr.com is plain HTML, with no build step and no CMS. Every JSON-LD block is written by hand, which means every fact stated twice, once for people and once for machines, is two strings that can disagree. So the deploy script refuses to ship the site until a validator has passed 26 rules over every page: the JSON parses, every @id resolves, the headline matches the h1, the FAQ text appears character for character in the visible page, and so on. Even wordCount and timeRequired are measured by the validator's own extractor, because an estimated number outlives three rewrites. Two of the 26, rules 25 and 26, were built alongside this article and check the diagram below against its own table.

Twenty-six is not ambition. Most of those rules are scar tissue.

How does structured data drift out of sync with a page?

Silently. That is the finding this project keeps repeating: on a site with no build step, anything written twice drifts, and nothing notices. Several of the newest validator rules exist because a specific silent failure had already shipped:

• Sixteen video figures were live with no markup at all. No error anywhere; extractors simply did not know the videos existed. Now a video figure on a post fails the build if it has no VideoObject node.
• The graph was quoting review paragraphs the page no longer contained. The prose had been edited; the copies in the markup had not. Now every reviewBody must appear verbatim in the visible page.
• The sitemap claimed nothing had changed in six weeks, while pages were being edited daily. Now the sitemap lastmod must match each page's dateModified.
• All twelve visible bylines were six weeks stale against the dates in the markup, and four posts showed no Updated date. Now the byline and the graph must agree.

None of those was a crash. Each was the site quietly telling machines something false while looking fine to every human visitor. That is why I treat hand-maintained structured data as a testing problem, not a documentation problem.

How do you mark up one video that appears on several pages?

As one entity. The clip of Musklr's rest timer shrinking into the stats bar appears on four pages in two languages, but there is only one video, so its @id is the video file's own URL: rest-timer-morph-minimize.mp4 with #video appended. Each of the four pages describes that same entity from its own angle, and a machine merging the four descriptions learns more about one video instead of believing in four. Sitewide the markup defines VideoObject sixteen times; deduplicated by @id, that is six distinct videos across the blog posts.

What does a whole site's JSON-LD graph look like?

Measured off the shipped HTML on 14 August 2026: 23 pages, 135 identified entities of 15 types, 229 distinct edges, and 304 nodes that deliberately carry no @id at all: 86 questions, 86 answers, 66 list items, 40 offers, 12 how-to steps and 14 speakable blocks. A question belongs to its FAQ and a step to its how-to; nothing needs to point at them, and identifying each one would be 304 more names to keep unique for no gain.

Three of those numbers are decisions rather than facts about schema.org:

• The graph holds exactly two Person entities. One is me, defined on jan.sviland.org and stubbed everywhere else. The other is a real App Store reviewer, registered as his own entity so his words are never confused with mine.
• All 40 Offer nodes are anonymous. They are five apps' price tiers in two languages, and nothing needs to point at an individual price, so none of them gets an @id.
• There are 9 Review entities, not 8. Four competitor reviews per language make eight, and the ninth is a real customer testimonial that appears on both homepages under a single @id: one review, described twice. There is no tenth. Validator rule 18 blocks any review of Musklr that I write myself, because a business reviewing itself is not a review.

The diagram below is not an illustration. It draws the graph itself: every identified entity as a labeled node, every reference as an edge. Click a node, or focus it with the keyboard, and its real JSON-LD opens in a panel that pins itself to the bottom of the screen. Check it: view source on this page, search for application/ld+json, and you will find the same markup this section lists. The table below carries every node and edge in plain HTML, collapsed until you open it, so screen readers and extractors get the same data. Anonymous nodes are counted in the text above but not listed: without an @id there is nothing for an edge to point at.

Select a node to see its JSON-LD. Move between nodes with the arrow keys.

Filled nodes are entities defined on this site. Outlined nodes are stubs: short references to entities fully defined on another page or another domain.

Every node and edge in the graph

Entity, type and @id for every node.

Entity	Type	@id
Jan Sviland	Person	https://jan.sviland.org/#person
Musklr (#app)	SoftwareApplication	https://musklr.com/#app
Fitbod	SoftwareApplication	https://musklr.com/#app-fitbod
Hevy	SoftwareApplication	https://musklr.com/#app-hevy
Jefit	SoftwareApplication	https://musklr.com/#app-jefit
Strong	SoftwareApplication	https://musklr.com/#app-strong
Musklr (#org)	Organization	https://musklr.com/#org
review-raffi-o	Review	https://musklr.com/#review-raffi-o
Raffi O	Person	https://musklr.com/#reviewer-raffi-o
Musklr: Lift Heavy. Log Fast.	WebPage	https://musklr.com/#webpage
Musklr (#website)	WebSite	https://musklr.com/#website
breadcrumb	BreadcrumbList	https://musklr.com/apple-watch/#breadcrumb
Musklr for Apple Watch: Lift Heavy. Glanc…	WebPage	https://musklr.com/apple-watch/#webpage
Musklr Blog	Blog	https://musklr.com/blog/#blog
breadcrumb 2	BreadcrumbList	https://musklr.com/blog/#breadcrumb
Musklr Blog: Lifting, Apple Watch & Train…	WebPage	https://musklr.com/blog/#webpage
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faq	FAQPage	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#faq
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leadimage	ImageObject	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#leadimage
Best iOS Weight Lifting App for iPhone & …	BlogPosting	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#post
Fitbod: automated programming, no permane…	Review	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#review-fitbod
Hevy: a 14M+ athlete community and a rout…	Review	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#review-hevy
Jefit: 1,400+ exercises and expert-built …	Review	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#review-jefit
Strong: a minimal logger, three routines …	Review	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#review-strong
Best iOS Weight Lifting App for iPhone & … 2	WebPage	https://musklr.com/blog/2026/compare/best-ios-weight-lifting-app-apple-watch/#webpage
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How Musklr Keeps Your Apple Watch and iPh… 2	WebPage	https://musklr.com/blog/2026/devlog/apple-watch-iphone-workout-sync/#webpage
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Dogfooding: How Great Apps Are Made | Mus…	WebPage	https://musklr.com/blog/2026/devlog/dogfooding-how-great-apps-are-made/#webpage
breadcrumb 6	BreadcrumbList	https://musklr.com/blog/2026/devlog/structured-data-json-ld-schema-graph/#breadcrumb
The Organization node every musklr.com pa…	SoftwareSourceCode	https://musklr.com/blog/2026/devlog/structured-data-json-ld-schema-graph/#code-org
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Track your workout from the iPhone Lock S…	BlogPosting	https://musklr.com/blog/2026/feature/iphone-lock-screen-workout-tracking-live-activity/#post
Workout Live Activity on iPhone: Lock Scr…	WebPage	https://musklr.com/blog/2026/feature/iphone-lock-screen-workout-tracking-live-activity/#webpage
breadcrumb 8	BreadcrumbList	https://musklr.com/blog/2026/tutorial/how-to-build-bar-line-sparkline-radar-charts-with-swift-charts/#breadcrumb
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leadimage 6	ImageObject	https://musklr.com/blog/2026/tutorial/how-to-build-bar-line-sparkline-radar-charts-with-swift-charts/#leadimage
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How to Build Bar, Line, Sparkline and Rad… 2	WebPage	https://musklr.com/blog/2026/tutorial/how-to-build-bar-line-sparkline-radar-charts-with-swift-charts/#webpage
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code-wrapper	SoftwareSourceCode	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#code-wrapper
faq 7	FAQPage	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#faq
How do you try a SwiftUI hero animation i…	HowTo	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#howto
leadimage 7	ImageObject	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#leadimage
The Ring That Wouldn't Shrink: Building M…	BlogPosting	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#post
The Ring That Wouldn't Shrink: SwiftUI ma…	WebPage	https://musklr.com/blog/2026/tutorial/swiftui-matchedgeometryeffect-hero-animation/#webpage
Musklr: Løft tungt. Logg raskt.	WebPage	https://musklr.com/no/#webpage
Musklr (#website) 2	WebSite	https://musklr.com/no/#website
breadcrumb 10	BreadcrumbList	https://musklr.com/no/apple-watch/#breadcrumb
Musklr for Apple Watch: Løft tungt. Kikk.…	WebPage	https://musklr.com/no/apple-watch/#webpage
Musklr-bloggen	Blog	https://musklr.com/no/blog/#blog
breadcrumb 11	BreadcrumbList	https://musklr.com/no/blog/#breadcrumb
Musklr-bloggen: styrketrening, Apple Watc…	WebPage	https://musklr.com/no/blog/#webpage
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faq 8	FAQPage	https://musklr.com/no/blog/2026/funksjon/trening-pa-last-skjerm-iphone-live-activity/#faq
leadimage 8	ImageObject	https://musklr.com/no/blog/2026/funksjon/trening-pa-last-skjerm-iphone-live-activity/#leadimage
Følg treningen fra låseskjermen på iPhone	BlogPosting	https://musklr.com/no/blog/2026/funksjon/trening-pa-last-skjerm-iphone-live-activity/#post
Live Activity for trening på iPhone: låse…	WebPage	https://musklr.com/no/blog/2026/funksjon/trening-pa-last-skjerm-iphone-live-activity/#webpage
breadcrumb 13	BreadcrumbList	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#breadcrumb
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code-radar 2	SoftwareSourceCode	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#code-radar
code-sparkline 2	SoftwareSourceCode	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#code-sparkline
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Hvordan setter du opp en playground i Xco…	HowTo	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#howto
leadimage 9	ImageObject	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#leadimage
Slik bygger du søyle-, linje-, sparkline-…	BlogPosting	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#post
Slik bygger du søyle-, linje-, sparkline-… 2	WebPage	https://musklr.com/no/blog/2026/guide/slik-bygger-du-soyle-linje-sparkline-og-radargrafer-med-swift-charts/#webpage
breadcrumb 14	BreadcrumbList	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#breadcrumb
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code-wrapper 2	SoftwareSourceCode	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#code-wrapper
faq 10	FAQPage	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#faq
Hvordan prøver du en hero-animasjon i Swi…	HowTo	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#howto
leadimage 10	ImageObject	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#leadimage
Ringen som ikke ville krympe: slik bygde …	BlogPosting	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#post
Ringen som ikke ville krympe: SwiftUI mat…	WebPage	https://musklr.com/no/blog/2026/guide/swiftui-matchedgeometryeffect-hero-animasjon/#webpage
breadcrumb 15	BreadcrumbList	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#breadcrumb
faq 11	FAQPage	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#faq
Hvordan står Musklr seg mot Strong, Hevy,…	ItemList	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#itemlist
leadimage 11	ImageObject	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#leadimage
Beste iOS-app for styrketrening på iPhone…	BlogPosting	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#post
Fitbod: automatisk programmering, uten pe…	Review	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#review-fitbod
Hevy: et fellesskap på 14 mill.+ utøvere …	Review	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#review-hevy
Jefit: 1 400+ øvelser og ekspertbygde pla…	Review	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#review-jefit
Strong: en minimalistisk logg, tre rutine…	Review	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#review-strong
Beste iOS-app for styrketrening på iPhone… 2	WebPage	https://musklr.com/no/blog/2026/sammenlign/beste-ios-app-for-styrketrening-iphone-apple-watch/#webpage
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Slik holder Musklr Apple Watch og iPhone …	BlogPosting	https://musklr.com/no/blog/2026/utviklingslogg/apple-watch-iphone-treningssynkronisering/#post
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Slik bygger du én JSON-LD-graf for hele n… 2	WebPage	https://musklr.com/no/blog/2026/utviklingslogg/strukturerte-data-json-ld-og-schema-grafen/#webpage
breadcrumb 19	BreadcrumbList	https://musklr.com/privacy.html#breadcrumb
Musklr: App Privacy Policy	WebPage	https://musklr.com/privacy.html#webpage
breadcrumb 20	BreadcrumbList	https://musklr.com/support.html#breadcrumb
Musklr: Support	WebPage	https://musklr.com/support.html#webpage
breadcrumb 21	BreadcrumbList	https://musklr.com/terms.html#breadcrumb
Musklr: Terms of Use	WebPage	https://musklr.com/terms.html#webpage
Logging a leg press from the wrist in Mus…	VideoObject	https://musklr.com/video/apple-watch-workout-sync.mp4#video
Logging a set. This is the screen I look …	VideoObject	https://musklr.com/video/log-set-demo.mp4#video
A new record, the moment it lands.	VideoObject	https://musklr.com/video/pr-demo.mp4#video
The reverse direction: tap the mini timer…	VideoObject	https://musklr.com/video/rest-timer-morph-expand.mp4#video
How it works now. Tap away and the ring f…	VideoObject	https://musklr.com/video/rest-timer-morph-minimize.mp4#video
The naive version running. Watch the ring…	VideoObject	https://musklr.com/video/rest-timer-playground-slide-bug.mp4#video

Which node points at which, and through which property.

From	Property	To
Musklr (#app)	author	Jan Sviland
Musklr (#app)	publisher	Musklr (#org)
Musklr (#org)	founder	Jan Sviland
review-raffi-o	author	Raffi O
review-raffi-o	itemReviewed	Musklr (#app)
Musklr: Lift Heavy. Log Fast.	isPartOf	Musklr (#website)
Musklr (#website)	publisher	Musklr (#org)
Musklr for Apple Watch: Lift Heavy. Glanc…	breadcrumb	breadcrumb
Musklr for Apple Watch: Lift Heavy. Glanc…	isPartOf	Musklr (#website)
Musklr Blog	isPartOf	Musklr (#website)
Musklr Blog	publisher	Musklr (#org)
Musklr Blog: Lifting, Apple Watch & Train…	breadcrumb	breadcrumb 2
Musklr Blog: Lifting, Apple Watch & Train…	isPartOf	Musklr (#website)
Best iOS Weight Lifting App for iPhone & …	about	Musklr (#app)
Best iOS Weight Lifting App for iPhone & …	author	Jan Sviland
Best iOS Weight Lifting App for iPhone & …	image	leadimage
Best iOS Weight Lifting App for iPhone & …	isPartOf	Musklr Blog
Best iOS Weight Lifting App for iPhone & …	mainEntityOfPage	Best iOS Weight Lifting App for iPhone & … 2
Best iOS Weight Lifting App for iPhone & …	mentions	Fitbod
Best iOS Weight Lifting App for iPhone & …	mentions	Hevy
Best iOS Weight Lifting App for iPhone & …	mentions	Jefit
Best iOS Weight Lifting App for iPhone & …	mentions	Strong
Best iOS Weight Lifting App for iPhone & …	publisher	Musklr (#org)
Fitbod: automated programming, no permane…	author	Jan Sviland
Fitbod: automated programming, no permane…	isPartOf	Best iOS Weight Lifting App for iPhone & … 2
Fitbod: automated programming, no permane…	itemReviewed	Fitbod
Hevy: a 14M+ athlete community and a rout…	author	Jan Sviland
Hevy: a 14M+ athlete community and a rout…	isPartOf	Best iOS Weight Lifting App for iPhone & … 2
Hevy: a 14M+ athlete community and a rout…	itemReviewed	Hevy
Jefit: 1,400+ exercises and expert-built …	author	Jan Sviland
Jefit: 1,400+ exercises and expert-built …	isPartOf	Best iOS Weight Lifting App for iPhone & … 2
Jefit: 1,400+ exercises and expert-built …	itemReviewed	Jefit
Strong: a minimal logger, three routines …	author	Jan Sviland
Strong: a minimal logger, three routines …	isPartOf	Best iOS Weight Lifting App for iPhone & … 2
Strong: a minimal logger, three routines …	itemReviewed	Strong
Best iOS Weight Lifting App for iPhone & … 2	breadcrumb	breadcrumb 3
Best iOS Weight Lifting App for iPhone & … 2	isPartOf	Musklr (#website)
Best iOS Weight Lifting App for iPhone & … 2	primaryImageOfPage	leadimage
How Musklr Keeps Your Apple Watch and iPh…	about	Musklr (#app)
How Musklr Keeps Your Apple Watch and iPh…	author	Jan Sviland
How Musklr Keeps Your Apple Watch and iPh…	image	leadimage 2
How Musklr Keeps Your Apple Watch and iPh…	isPartOf	Musklr Blog
How Musklr Keeps Your Apple Watch and iPh…	mainEntityOfPage	How Musklr Keeps Your Apple Watch and iPh… 2
How Musklr Keeps Your Apple Watch and iPh…	publisher	Musklr (#org)
How Musklr Keeps Your Apple Watch and iPh… 2	breadcrumb	breadcrumb 4
How Musklr Keeps Your Apple Watch and iPh… 2	isPartOf	Musklr (#website)
How Musklr Keeps Your Apple Watch and iPh… 2	primaryImageOfPage	leadimage 2
Dogfooding: How Great Apps Are Made	about	Musklr (#app)
Dogfooding: How Great Apps Are Made	author	Jan Sviland
Dogfooding: How Great Apps Are Made	image	leadimage 3
Dogfooding: How Great Apps Are Made	isPartOf	Musklr Blog
Dogfooding: How Great Apps Are Made	mainEntityOfPage	Dogfooding: How Great Apps Are Made | Mus…
Dogfooding: How Great Apps Are Made	publisher	Musklr (#org)
Dogfooding: How Great Apps Are Made | Mus…	breadcrumb	breadcrumb 5
Dogfooding: How Great Apps Are Made | Mus…	isPartOf	Musklr (#website)
Dogfooding: How Great Apps Are Made | Mus…	primaryImageOfPage	leadimage 3
The Organization node every musklr.com pa…	isPartOf	How to Mark Up a Whole Website as One JSO… 2
The author node every musklr.com page car…	isPartOf	How to Mark Up a Whole Website as One JSO… 2
How to Mark Up a Whole Website as One JSO…	about	Musklr (#website)
How to Mark Up a Whole Website as One JSO…	author	Jan Sviland
How to Mark Up a Whole Website as One JSO…	hasPart	The Organization node every musklr.com pa…
How to Mark Up a Whole Website as One JSO…	hasPart	The author node every musklr.com page car…
How to Mark Up a Whole Website as One JSO…	image	leadimage 4
How to Mark Up a Whole Website as One JSO…	isPartOf	Musklr Blog
How to Mark Up a Whole Website as One JSO…	mainEntityOfPage	How to Mark Up a Whole Website as One JSO… 2
How to Mark Up a Whole Website as One JSO…	mentions	Musklr (#app)
How to Mark Up a Whole Website as One JSO…	mentions	Musklr (#org)
How to Mark Up a Whole Website as One JSO…	publisher	Musklr (#org)
How to Mark Up a Whole Website as One JSO… 2	breadcrumb	breadcrumb 6
How to Mark Up a Whole Website as One JSO… 2	isPartOf	Musklr (#website)
How to Mark Up a Whole Website as One JSO… 2	primaryImageOfPage	leadimage 4
Track your workout from the iPhone Lock S…	about	Musklr (#app)
Track your workout from the iPhone Lock S…	author	Jan Sviland
Track your workout from the iPhone Lock S…	image	leadimage 5
Track your workout from the iPhone Lock S…	isPartOf	Musklr Blog
Track your workout from the iPhone Lock S…	mainEntityOfPage	Workout Live Activity on iPhone: Lock Scr…
Track your workout from the iPhone Lock S…	publisher	Musklr (#org)
Workout Live Activity on iPhone: Lock Scr…	breadcrumb	breadcrumb 7
Workout Live Activity on iPhone: Lock Scr…	isPartOf	Musklr (#website)
Workout Live Activity on iPhone: Lock Scr…	primaryImageOfPage	leadimage 5
code-bar-trend	isPartOf	How to Build Bar, Line, Sparkline and Rad… 2
code-radar	isPartOf	How to Build Bar, Line, Sparkline and Rad… 2
code-sparkline	isPartOf	How to Build Bar, Line, Sparkline and Rad… 2
How do you set up an Xcode playground for…	isPartOf	How to Build Bar, Line, Sparkline and Rad… 2
How to Build Bar, Line, Sparkline and Rad…	author	Jan Sviland
How to Build Bar, Line, Sparkline and Rad…	image	leadimage 6
How to Build Bar, Line, Sparkline and Rad…	isPartOf	Musklr Blog
How to Build Bar, Line, Sparkline and Rad…	mainEntityOfPage	How to Build Bar, Line, Sparkline and Rad… 2
How to Build Bar, Line, Sparkline and Rad…	mentions	Musklr (#app)
How to Build Bar, Line, Sparkline and Rad…	publisher	Musklr (#org)
How to Build Bar, Line, Sparkline and Rad… 2	breadcrumb	breadcrumb 8
How to Build Bar, Line, Sparkline and Rad… 2	isPartOf	Musklr (#website)
How to Build Bar, Line, Sparkline and Rad… 2	primaryImageOfPage	leadimage 6
code-both-endpoints	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
code-naive	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
code-wrapper	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
How do you try a SwiftUI hero animation i…	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
The Ring That Wouldn't Shrink: Building M…	author	Jan Sviland
The Ring That Wouldn't Shrink: Building M…	image	leadimage 7
The Ring That Wouldn't Shrink: Building M…	isPartOf	Musklr Blog
The Ring That Wouldn't Shrink: Building M…	mainEntityOfPage	The Ring That Wouldn't Shrink: SwiftUI ma…
The Ring That Wouldn't Shrink: Building M…	mentions	Musklr (#app)
The Ring That Wouldn't Shrink: Building M…	publisher	Musklr (#org)
The Ring That Wouldn't Shrink: SwiftUI ma…	breadcrumb	breadcrumb 9
The Ring That Wouldn't Shrink: SwiftUI ma…	isPartOf	Musklr (#website)
The Ring That Wouldn't Shrink: SwiftUI ma…	primaryImageOfPage	leadimage 7
Musklr: Løft tungt. Logg raskt.	isPartOf	Musklr (#website) 2
Musklr (#website) 2	publisher	Musklr (#org)
Musklr for Apple Watch: Løft tungt. Kikk.…	breadcrumb	breadcrumb 10
Musklr for Apple Watch: Løft tungt. Kikk.…	isPartOf	Musklr (#website) 2
Musklr-bloggen	isPartOf	Musklr (#website) 2
Musklr-bloggen	publisher	Musklr (#org)
Musklr-bloggen: styrketrening, Apple Watc…	breadcrumb	breadcrumb 11
Musklr-bloggen: styrketrening, Apple Watc…	isPartOf	Musklr (#website) 2
Følg treningen fra låseskjermen på iPhone	about	Musklr (#app)
Følg treningen fra låseskjermen på iPhone	author	Jan Sviland
Følg treningen fra låseskjermen på iPhone	image	leadimage 8
Følg treningen fra låseskjermen på iPhone	isPartOf	Musklr-bloggen
Følg treningen fra låseskjermen på iPhone	mainEntityOfPage	Live Activity for trening på iPhone: låse…
Følg treningen fra låseskjermen på iPhone	publisher	Musklr (#org)
Live Activity for trening på iPhone: låse…	breadcrumb	breadcrumb 12
Live Activity for trening på iPhone: låse…	isPartOf	Musklr (#website) 2
Live Activity for trening på iPhone: låse…	primaryImageOfPage	leadimage 8
code-bar-trend 2	isPartOf	Slik bygger du søyle-, linje-, sparkline-… 2
code-radar 2	isPartOf	Slik bygger du søyle-, linje-, sparkline-… 2
code-sparkline 2	isPartOf	Slik bygger du søyle-, linje-, sparkline-… 2
Hvordan setter du opp en playground i Xco…	isPartOf	Slik bygger du søyle-, linje-, sparkline-… 2
Slik bygger du søyle-, linje-, sparkline-…	author	Jan Sviland
Slik bygger du søyle-, linje-, sparkline-…	image	leadimage 9
Slik bygger du søyle-, linje-, sparkline-…	isPartOf	Musklr-bloggen
Slik bygger du søyle-, linje-, sparkline-…	mainEntityOfPage	Slik bygger du søyle-, linje-, sparkline-… 2
Slik bygger du søyle-, linje-, sparkline-…	mentions	Musklr (#app)
Slik bygger du søyle-, linje-, sparkline-…	publisher	Musklr (#org)
Slik bygger du søyle-, linje-, sparkline-… 2	breadcrumb	breadcrumb 13
Slik bygger du søyle-, linje-, sparkline-… 2	isPartOf	Musklr (#website) 2
Slik bygger du søyle-, linje-, sparkline-… 2	primaryImageOfPage	leadimage 9
code-both-endpoints 2	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
code-naive 2	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
code-wrapper 2	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
Hvordan prøver du en hero-animasjon i Swi…	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
Ringen som ikke ville krympe: slik bygde …	author	Jan Sviland
Ringen som ikke ville krympe: slik bygde …	image	leadimage 10
Ringen som ikke ville krympe: slik bygde …	isPartOf	Musklr-bloggen
Ringen som ikke ville krympe: slik bygde …	mainEntityOfPage	Ringen som ikke ville krympe: SwiftUI mat…
Ringen som ikke ville krympe: slik bygde …	mentions	Musklr (#app)
Ringen som ikke ville krympe: slik bygde …	publisher	Musklr (#org)
Ringen som ikke ville krympe: SwiftUI mat…	breadcrumb	breadcrumb 14
Ringen som ikke ville krympe: SwiftUI mat…	isPartOf	Musklr (#website) 2
Ringen som ikke ville krympe: SwiftUI mat…	primaryImageOfPage	leadimage 10
Beste iOS-app for styrketrening på iPhone…	about	Musklr (#app)
Beste iOS-app for styrketrening på iPhone…	author	Jan Sviland
Beste iOS-app for styrketrening på iPhone…	image	leadimage 11
Beste iOS-app for styrketrening på iPhone…	isPartOf	Musklr-bloggen
Beste iOS-app for styrketrening på iPhone…	mainEntityOfPage	Beste iOS-app for styrketrening på iPhone… 2
Beste iOS-app for styrketrening på iPhone…	mentions	Fitbod
Beste iOS-app for styrketrening på iPhone…	mentions	Hevy
Beste iOS-app for styrketrening på iPhone…	mentions	Jefit
Beste iOS-app for styrketrening på iPhone…	mentions	Strong
Beste iOS-app for styrketrening på iPhone…	publisher	Musklr (#org)
Fitbod: automatisk programmering, uten pe…	author	Jan Sviland
Fitbod: automatisk programmering, uten pe…	isPartOf	Beste iOS-app for styrketrening på iPhone… 2
Fitbod: automatisk programmering, uten pe…	itemReviewed	Fitbod
Hevy: et fellesskap på 14 mill.+ utøvere …	author	Jan Sviland
Hevy: et fellesskap på 14 mill.+ utøvere …	isPartOf	Beste iOS-app for styrketrening på iPhone… 2
Hevy: et fellesskap på 14 mill.+ utøvere …	itemReviewed	Hevy
Jefit: 1 400+ øvelser og ekspertbygde pla…	author	Jan Sviland
Jefit: 1 400+ øvelser og ekspertbygde pla…	isPartOf	Beste iOS-app for styrketrening på iPhone… 2
Jefit: 1 400+ øvelser og ekspertbygde pla…	itemReviewed	Jefit
Strong: en minimalistisk logg, tre rutine…	author	Jan Sviland
Strong: en minimalistisk logg, tre rutine…	isPartOf	Beste iOS-app for styrketrening på iPhone… 2
Strong: en minimalistisk logg, tre rutine…	itemReviewed	Strong
Beste iOS-app for styrketrening på iPhone… 2	breadcrumb	breadcrumb 15
Beste iOS-app for styrketrening på iPhone… 2	isPartOf	Musklr (#website) 2
Beste iOS-app for styrketrening på iPhone… 2	primaryImageOfPage	leadimage 11
Slik holder Musklr Apple Watch og iPhone …	about	Musklr (#app)
Slik holder Musklr Apple Watch og iPhone …	author	Jan Sviland
Slik holder Musklr Apple Watch og iPhone …	image	leadimage 12
Slik holder Musklr Apple Watch og iPhone …	isPartOf	Musklr-bloggen
Slik holder Musklr Apple Watch og iPhone …	mainEntityOfPage	Slik holder Musklr Apple Watch og iPhone … 2
Slik holder Musklr Apple Watch og iPhone …	publisher	Musklr (#org)
Slik holder Musklr Apple Watch og iPhone … 2	breadcrumb	breadcrumb 16
Slik holder Musklr Apple Watch og iPhone … 2	isPartOf	Musklr (#website) 2
Slik holder Musklr Apple Watch og iPhone … 2	primaryImageOfPage	leadimage 12
Dogfooding: slik blir gode apper til	about	Musklr (#app)
Dogfooding: slik blir gode apper til	author	Jan Sviland
Dogfooding: slik blir gode apper til	image	leadimage 13
Dogfooding: slik blir gode apper til	isPartOf	Musklr-bloggen
Dogfooding: slik blir gode apper til	mainEntityOfPage	Dogfooding: slik blir gode apper til | Mu…
Dogfooding: slik blir gode apper til	publisher	Musklr (#org)
Dogfooding: slik blir gode apper til | Mu…	breadcrumb	breadcrumb 17
Dogfooding: slik blir gode apper til | Mu…	isPartOf	Musklr (#website) 2
Dogfooding: slik blir gode apper til | Mu…	primaryImageOfPage	leadimage 13
Organization-noden hver side på musklr.co…	isPartOf	Slik bygger du én JSON-LD-graf for hele n… 2
Forfatternoden hver side på musklr.com bæ…	isPartOf	Slik bygger du én JSON-LD-graf for hele n… 2
Slik bygger du én JSON-LD-graf for hele n…	about	Musklr (#website) 2
Slik bygger du én JSON-LD-graf for hele n…	author	Jan Sviland
Slik bygger du én JSON-LD-graf for hele n…	hasPart	Organization-noden hver side på musklr.co…
Slik bygger du én JSON-LD-graf for hele n…	hasPart	Forfatternoden hver side på musklr.com bæ…
Slik bygger du én JSON-LD-graf for hele n…	image	leadimage 14
Slik bygger du én JSON-LD-graf for hele n…	isPartOf	Musklr-bloggen
Slik bygger du én JSON-LD-graf for hele n…	mainEntityOfPage	Slik bygger du én JSON-LD-graf for hele n… 2
Slik bygger du én JSON-LD-graf for hele n…	mentions	Musklr (#app)
Slik bygger du én JSON-LD-graf for hele n…	mentions	Musklr (#org)
Slik bygger du én JSON-LD-graf for hele n…	publisher	Musklr (#org)
Slik bygger du én JSON-LD-graf for hele n… 2	breadcrumb	breadcrumb 18
Slik bygger du én JSON-LD-graf for hele n… 2	isPartOf	Musklr (#website) 2
Slik bygger du én JSON-LD-graf for hele n… 2	primaryImageOfPage	leadimage 14
Musklr: App Privacy Policy	breadcrumb	breadcrumb 19
Musklr: App Privacy Policy	isPartOf	Musklr (#website)
Musklr: Support	breadcrumb	breadcrumb 20
Musklr: Support	isPartOf	Musklr (#website)
Musklr: Terms of Use	breadcrumb	breadcrumb 21
Musklr: Terms of Use	isPartOf	Musklr (#website)
Logging a leg press from the wrist in Mus…	isPartOf	How Musklr Keeps Your Apple Watch and iPh… 2
Logging a leg press from the wrist in Mus…	isPartOf	Dogfooding: How Great Apps Are Made | Mus…
Logging a leg press from the wrist in Mus…	isPartOf	Slik holder Musklr Apple Watch og iPhone … 2
Logging a leg press from the wrist in Mus…	isPartOf	Dogfooding: slik blir gode apper til | Mu…
Logging a set. This is the screen I look …	isPartOf	Dogfooding: How Great Apps Are Made | Mus…
Logging a set. This is the screen I look …	isPartOf	Dogfooding: slik blir gode apper til | Mu…
A new record, the moment it lands.	isPartOf	Dogfooding: How Great Apps Are Made | Mus…
A new record, the moment it lands.	isPartOf	Dogfooding: slik blir gode apper til | Mu…
The reverse direction: tap the mini timer…	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
The reverse direction: tap the mini timer…	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
How it works now. Tap away and the ring f…	isPartOf	Dogfooding: How Great Apps Are Made | Mus…
How it works now. Tap away and the ring f…	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
How it works now. Tap away and the ring f…	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…
How it works now. Tap away and the ring f…	isPartOf	Dogfooding: slik blir gode apper til | Mu…
The naive version running. Watch the ring…	isPartOf	The Ring That Wouldn't Shrink: SwiftUI ma…
The naive version running. Watch the ring…	isPartOf	Ringen som ikke ville krympe: SwiftUI mat…

Does structured data improve search rankings or AI answers?

I do not know, and this post would be dishonest to imply otherwise. Nothing here is measured. Musklr does not ask new users how they found the app, so no number connects any of this work to a download. Teams that survey their signups can make that connection; Musklr has no such survey.

What I can say is narrower. The claims in the markup are true, they are checked on every deploy, and they are cheap to keep true now that the rules exist. If a machine answers a question about workout apps next year, musklr.com is at least readable to it. Whether that turns into downloads, the site cannot say today, and saying so plainly beats implying it can.

Frequently asked questions

Does FAQ schema still get rich results in Google?

For most sites, no. Google restricted FAQ rich results to well-known government and health sites in 2023, so a fitness blog gets no expandable questions on the results page. The markup stays useful anyway: assistants and other extractors read FAQPage nodes, and the visible answers still serve readers.

Can a JSON-LD @id point at another domain?

Yes. An @id is an identifier in the form of a URL, and nothing requires it to sit on the page's own domain. Every page on musklr.com names its author as jan.sviland.org/#person, an address on a different site, and that single cross-domain reference is what joins the two sites into one graph.

Does Google read llms.txt?

No. Google has said its search crawlers do not use llms.txt, and none of the large AI providers has confirmed reading it either. musklr.com ships one anyway: it costs almost nothing to maintain and describes the site in plain text for whichever crawler decides to look.

Is JSON-LD better than microdata for structured data?

For maintenance, yes. Microdata weaves the markup through the visible HTML, so restructuring a page can change what a machine reads without anyone noticing. JSON-LD sits in one script block, separate from the layout, and Google recommends it as the preferred format. One block is also far easier to test.

How do you validate JSON-LD structured data?

Google's Rich Results Test and the Schema.org validator check syntax and rich-result eligibility. Neither can know what is true about your site, so musklr.com also runs its own validator with 26 rules on every deploy. It checks, among other things, that the FAQ text exists on the page, that every @id points at something real, and that word counts are measured rather than guessed.