The vitadefence.com course
This course is about one thing: making vitadefence.com readable, quotable and correctly understood by the engines that answer questions — Google’s AI surfaces, ChatGPT, Claude, Perplexity and the rest.
The home page of vitadefence.com, as it was when the checks ran.
Built from the checks run against vitadefence.com on 31 August 2026 at 12:10.
Vitadefence Ltd, UK company 15979768
Start here
The checks were run against vitadefence.com. This is where each one stands, and which chapter to read for it.
- 6 chapter(s) give you a finished file and the steps to install it.
- 3 chapter(s) found nothing to fix — they say what was measured and when it starts to matter.
- 1 chapter(s) could not be completed. They claim nothing either way and name the reason.
| Chapter | State |
|---|---|
| 1. The language block | did not run |
| 2. The preferred-source button | a file to install |
| 3. Can the answer engines read you | nothing to fix |
| 4. The plain-text summary for machines | a file to install |
| 5. What the site says about itself, in machine form | a file to install |
| 6. Can a paragraph survive being quoted | a file to install |
| 7. The pages nothing links to | a file to install |
| 8. The trust signals a reader and a machine both look for | a file to install |
| 9. Which AI engines can actually reach you | nothing to fix |
| 10. The extra machine-readable blocks your pages qualify for | nothing to fix |
1. The language block
What this is
If your site exists in more than one language, every version has to point at every other version — including itself — or Google ignores the lot. This is the single most common way a translated site loses its own translations.
This check did not run
The reason recorded for vitadefence.com was:
no version of the site could be read, so nothing is claimed
No result is claimed either way. This is not a clean pass and it is not an empty finding — the check did not complete, and this chapter exists to tell you so.
What we found on vitadefence.com
Nothing. This check produced no measurement of vitadefence.com, so this chapter teaches nothing and asks you to do nothing.
Step 1 — Have it run again
Ask for this one check to be run again once vitadefence.com answers normally. Nothing in this chapter should be acted on until it has.
2. The preferred-source button
What this is
Google lets a reader mark your site as a source they prefer. Once they do, your pages carry a badge in Top Stories — and in AI Overviews and AI Mode. The lever is two lines of HTML, and most sites do not have them.
Why this matters for vitadefence.com
1 page(s) of vitadefence.com were read and the button was not on them. It is two lines of HTML, and it is the only lever you have: a reader marks you as a preferred source, and that preference follows them into Google’s AI answers.
What we found on vitadefence.com
Paste the script line in <head> and the div where the button should appear; it renders in the reader’s own language automatically. Checked 1 page(s): https://vitadefence.com
- no preferred-sources button and no fallback link on this page
Pages read for this check: https://vitadefence.com.
NOT CHECKED - Google decides eligibility algorithmically and there is no way to apply. Whether this domain appears in the picker can only be seen in Google’s own picker, by a person.
Step 1 — Add the library line to <head>
This goes in the <head> of every page of vitadefence.com:
<script async src="https://news.google.com/swg/js/v1/publisher.js"></script>
Step 2 — Put the button where a reader will see it
This line renders the button itself. Put it where you want it to appear — near the top of an article works, a footer does not:
<div google-add-preferred-source-btn></div>
Step 3 — Keep a plain link as the fallback
If a page of vitadefence.com cannot run scripts, this ordinary link does the same job for vitadefence.com:
<a href="https://www.google.com/preferences/source?q=vitadefence.com">Add vitadefence.com as a preferred source</a>
In the words of the company that published this
Google: “Embed an interactive button to your web pages, which lets readers seamlessly add your site as a preferred source and returns them to your page. By adding only two lines to your HTML, this option renders an automatically localized, Google-styled button that supports device and language customization.”
Their page: developers.google.com/search/docs/appearance/preferred-sources
How to check you did it right
- Load https://vitadefence.com and look for the button where you put it.
- Open the fallback link on its own — it should land on Google’s preferred-source page naming vitadefence.com.
- View source and confirm the library line is inside
<head>and not somewhere in the body.
What it looks like when it is working
- A reader on vitadefence.com can add you in one press, and vitadefence.com carries the badge for them afterwards.
- NOT CHECKED - Google decides eligibility algorithmically and there is no way to apply. Whether this domain appears in the picker can only be seen in Google’s own picker, by a person.
The finished file is in your pack at packs/02-preferred-sources/preferred-sources-button.html.
3. Can the answer engines read you
What this is
The crawlers everybody blocks are the ones that train models. They are not the ones that decide whether an assistant can quote you. Those are different, they are named differently at every vendor, and blocking them by accident is easy — Apple, for instance, follows your Googlebot rule when you have not named Apple.
What we found on vitadefence.com
Every crawler that decides whether an AI can quote you can already reach this site. Nothing to fix here.
All 6 answering crawlers can reach vitadefence.com. Your robots file answered HTTP 200.
| Crawler | Whose | Can reach vitadefence.com |
|---|---|---|
| OAI-SearchBot | OpenAI | yes |
| Claude-SearchBot | Anthropic | yes |
| Claude-User | Anthropic | yes |
| Googlebot | yes | |
| PerplexityBot | Perplexity | yes |
| Applebot | Apple | yes |
Not checked, and said so rather than assumed: Google-Extended, meta-externalagent, Bingbot, CCBot, Amazonbot, Bytespider.
Measured on https://vitadefence.com.
The file at packs/03-ai-crawlers/robots-block.txt says the same thing for vitadefence.com, so you can check this yourself rather than take our word for it.
Nothing to do here yet
There is no step to follow in this chapter for vitadefence.com today. Nothing has been invented to give you something to do.
When this starts to matter
Every crawler that decides whether an assistant can quote you can already reach this site.
4. The plain-text summary for machines
What this is
A short file at the root of the site that tells an assistant, in plain markdown, what the business is and which pages matter. Chrome now audits for it.
Why this matters for vitadefence.com
An assistant that lands on vitadefence.com has to work out what the business is from the HTML. This file tells it directly, in 30 line(s) built from your own pages, and Chrome now audits for it.
What we found on vitadefence.com
Built from 25 of this site’s own pages, using their real titles and descriptions - no sentence here was written by us
The file below was built from 25 page(s) of vitadefence.com — your own titles and your own descriptions. Not a sentence of it was written by us.
- 3 list item(s) under ‘What we sell’ have no
[name](url)link, which their spec requires - 5 list item(s) under ‘Why a buyer might pick us’ have no
[name](url)link, which their spec requires - 3 list item(s) under ‘Markets and websites’ have no
[name](url)link, which their spec requires - 5 list item(s) under ‘Compliance’ have no
[name](url)link, which their spec requires - 2 list item(s) under ‘Contact’ have no
[name](url)link, which their spec requires - no rel=“describedby” link pointing at the llms.txt - v2 of their spec added this and almost no tool emits it yet
- no rel=“alternate” type=“text/markdown” link to a markdown twin
Notes from reading your sitemap: robots.txt declared 1 sitemap(s); https://vitadefence.com/sitemap.xml -> 421 urls.
Step 1 — Publish the file at your root
Save this as llms.txt so it answers at https://vitadefence.com/llms.txt:
# Vitadefence UK · Premium supplements · Made in the UK
> 63 premium supplements (mostly plant-based) · HPMC capsules · Made in the UK · GMP certified · FREE Royal Mail Tracked 48® delivery.
## Pages
- [Vitadefence UK · Premium supplements · Made in the UK](https://vitadefence.com/): 63 premium supplements (mostly plant-based) · HPMC capsules · Made in the UK · GMP certified · FREE Royal Mail Tracked 48® delivery.
- [Articles — The Vitadefence Library · Vitadefence UK](https://vitadefence.com/articles): Plain-words deep-dives on every supplement we make. Origin, ingredients, why this formula. Guides on acai, zinc, ashwagandha, spirulina, ginseng and more.
- [Acai Berry Tablets & Capsules — Amazon Fruit |](https://vitadefence.com/articles/acai-berry-multi): Acai berry tablets and capsules from the Amazon — a deep-purple forest fruit and nine quiet partners in one daily vegan capsule. Read the story →
- [Acerola Cherry Capsules — Vitamin C | Vitadefence](https://vitadefence.com/articles/acerola-multi): Acerola cherry capsules — the West Indian cherry, naturally rich in vitamin C, with quiet plant partners. Read the story →
- [African Mango Extract Capsules | Vitadefence](https://vitadefence.com/articles/african-mango): African mango (Irvingia gabonensis) seed extract capsules — the West African forest seed in a daily vegan capsule. Read the story →
- [Aloe Vera Capsules & Tablets — Inner-Leaf | Vitadefence](https://vitadefence.com/articles/aloe-vera-multi): Aloe vera capsules and tablets — inner-leaf gel concentrate with quiet plant partners for the daily ritual. Read the story →
- [Amino Acid Capsules — BCAAs & Glutamine | Vitadefence](https://vitadefence.com/articles/amino-acid-multi): An amino acid capsule with BCAAs, l-glutamine and the supporting spine. The plain everyday amino blend, no scoop required. Read the story →
- [Apple Cider Vinegar Capsules — ACV | Vitadefence](https://vitadefence.com/articles/apple-cider-multi): Apple cider vinegar capsules — the kitchen-cupboard tradition without the sting on the teeth. The morning ACV ritual, in a capsule. Read the story →
- [Apple Cider Vinegar: What It Is (The Honest Version) |](https://vitadefence.com/articles/apple-cider-vinegar): Apple cider vinegar explained honestly: what it is, what 'the mother' means, its long kitchen history - and a straight word on the claims we.
- [Artichoke Capsules — Cynarin, Black Garlic & Bitters |](https://vitadefence.com/articles/artichoke-multi): Artichoke leaf capsules with black aged garlic, beetroot, burdock, turmeric and choline. The bitter principle, in one daily capsule. Read the full story.
- [Ashwagandha Capsules UK — KSM-66 & Cordyceps |](https://vitadefence.com/articles/ashwagandha-multi): Ashwagandha capsules and tablets — KSM-66 with cordyceps, ginseng, maca, reishi and a B-vitamin spine. Ayurvedic rasayana, one daily. Read the story →
- [Bilberry Lutein & Zeaxanthin Capsules | Vitadefence](https://vitadefence.com/articles/bilberry-multi): Bilberry with lutein and zeaxanthin in vegan capsules — the dark hedgerow berry and the macular pigments. Read the story →
- [Botanical Fibre — Quality Raw Materials | Vitadefence](https://vitadefence.com/articles/botanical-fibre-multi): A quiet daily fibre blend built on quality botanical raw materials — soluble fibre and plant partners for the morning glass. Read the story →
- [Botanical Multi — Quality Raw Materials | Vitadefence](https://vitadefence.com/articles/botanical-multi): A daily botanical capsule built on quality raw materials, led by aloe vera at 3,000mg with quiet plant partners. Read the story →
- [Chlorella vs Spirulina: What's the Difference? |](https://vitadefence.com/articles/chlorella-vs-spirulina): Chlorella vs spirulina explained simply: what each one is, where it comes from, how they differ in nutrition, taste and form, and how to choose.
- [Collagen and Vitamin C: Why They Go Together | Vitadefence](https://vitadefence.com/articles/collagen-and-vitamin-c): Collagen and vitamin C explained: what collagen is, marine vs bovine, and the one authorised claim that matters - vitamin C contributes to normal collagen.
- [Collagen Multi — Orange Powder & Multivitamin |](https://vitadefence.com/articles/collagen-multi): Collagen multivitamin in an orange powder shake — 11g bovine collagen, glucosamine, chicory fibre and full vit/mineral premix. Read the story →
- [Cranberry Capsules with Live Cultures | Vitadefence](https://vitadefence.com/articles/cranberry-multi): Cranberry concentrate capsules with live cultures and vitamin C — the New England bog berry in a daily vegan capsule. Read the story →
- [Creatine Monohydrate Unflavoured — 500g UK | Vitadefence](https://vitadefence.com/articles/creatine-monohydrate): Pure unflavoured creatine monohydrate, 500g, 100 servings at 5g. Informed Manufacturer grade, no fillers. The most studied molecule in the gym.
- [Creatine Chocolate Recovery Shake | Vitadefence](https://vitadefence.com/articles/creatine-multi): Chocolate recovery shake with creatine, whey, BCAAs, glutamine, collagen and a full vitamin premix. One scoop after the session. Read the story →
- [Dandelion Root Capsules — Taraxacum | Vitadefence](https://vitadefence.com/articles/dandelion-multi): Dandelion root (Taraxacum officinale) with quiet plant partners — the lawn weed your grandmother brewed as tea. Read the story →
- [Digestive Enzyme Multi — turmeric, ACV & enzymes |](https://vitadefence.com/articles/digestive-enzyme-multi): Digestive enzyme capsules with turmeric, apple cider vinegar, fennel, peppermint, ginger and a six-enzyme blend. UK-made. Read the full story.
- [Electrolyte Powder & Supplements UK | Vitadefence](https://vitadefence.com/articles/electrolyte-multi): Electrolyte powder UK with sodium, potassium, magnesium and calcium plus a B-vitamin support spine. The hot-day stir-in. Read the story →
- [Garcinia Cambogia & Green Coffee Bean | Vitadefence](https://vitadefence.com/articles/garcinia-cambogia-multi): Garcinia cambogia (kokum / Malabar tamarind) with green coffee bean — the South Indian culinary spice in a daily capsule. Read the story →
- [Glucomannan Capsules — Konjac Root 3g | Vitadefence](https://vitadefence.com/articles/glucomannan-multi): Glucomannan from konjac root, the EFSA-authorised 3g daily dose, with the choking-warning surfaced up front. Read the story →
Step 2 — Publish the 25 markdown copies
Each of your pages gets a plain-markdown twin at its own address. They are written for you already and sit in packs/04-llms-txt/markdown/. The addresses they belong at:
- https://vitadefence.com/articles.md
- https://vitadefence.com/articles/acai-berry-multi.md
- https://vitadefence.com/articles/acerola-multi.md
- https://vitadefence.com/articles/african-mango.md
- https://vitadefence.com/articles/aloe-vera-multi.md
- https://vitadefence.com/articles/amino-acid-multi.md
- https://vitadefence.com/articles/apple-cider-multi.md
- https://vitadefence.com/articles/apple-cider-vinegar.md
Step 3 — Point at them, one way or the other
Use either form. Not both.
As HTML, in the <head>:
<link rel="describedby" href="https://vitadefence.com/llms.txt">
<link rel="alternate" type="text/markdown" href="https://vitadefence.com/index.html.md">
Or as an HTTP response header, which also covers the markdown files themselves and can be set in your server or CDN without touching a page:
Link: <https://vitadefence.com/index.html.md>; rel="alternate"; type="text/markdown", <https://vitadefence.com/llms.txt>; rel="describedby"
In the words of the company that published this
llmstxt.org: “The file can be placed at the site root, or at any path within it, covering the pages under that path.” The markdown copies go “at the same URL as the original page, either with .md appended (page.html.md) or with the extension replaced by .md (page.md)”. The pointer “can be provided as HTML <link> elements, or as an HTTP Link: response header… and can be added in web server or CDN configuration without modifying any pages.”
Their page: llmstxt.org
How to check you did it right
- Open https://vitadefence.com/llms.txt in a browser. It should return the file, not a 404, and start with
# Vitadefence UK · Premium supplements · Made in the UK. - Open one of the markdown addresses above; it should return plain text, not HTML.
What it looks like when it is working
- https://vitadefence.com/llms.txt answers, the pointer is in place, and the faults listed above stop being reported.
- The faults to clear: 3 list item(s) under ‘What we sell’ have no
[name](url)link, which their spec; 5 list item(s) under ‘Why a buyer might pick us’ have no[name](url)link, whi; 3 list item(s) under ‘Markets and websites’ have no[name](url)link, which th.
The finished file is in your pack at packs/04-llms-txt/llms.txt.
5. What the site says about itself, in machine form
What this is
Structured data is how a business states its own name, phone, logo and profiles in a form a machine reads without guessing.
Why this matters for vitadefence.com
Every value in the blocks below was read off vitadefence.com — name, url, description, logo, email, sameAs. Nothing was supplied by us, which is the only way this is safe: a machine trusts structured data, so a wrong value in it is worse than no value at all.
What we found on vitadefence.com
Built from 8 fact(s) this site states about itself. Nothing here was invented; anything Google’s example wants that the site never says is listed under ‘missing’ for you to fill in. Validate with their Rich Results Test before shipping: search.google.com/test/rich-results
vitadefence.com already carries 2 structured-data block(s) of type Organization, WebSite.
| What your page states | The value we read |
|---|---|
| name | Vitadefence UK |
| url | https://vitadefence.com |
| description | 63 premium supplements (mostly plant-based) · HPMC capsules · Made in the UK · GMP certified · FREE Royal Mail Tracked 48® delivery. |
| logo | https://vitadefence.com/og-hero.jpg |
| info@vitadefence.com | |
| sameAs | https://facebook.com/vitadefence, https://instagram.com/vitadefence, https://tiktok.com/@vitadefence, https://x.com/vitadefence, https://youtube.com/@vitadefence |
The business name above was taken from og:site_name - the site naming itself.
Step 1 — Add the Organization block
Paste this into the <head> of https://vitadefence.com, whole, tag and all:
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Vitadefence UK",
"url": "https://vitadefence.com",
"logo": "https://vitadefence.com/og-hero.jpg",
"sameAs": [
"https://facebook.com/vitadefence",
"https://instagram.com/vitadefence",
"https://tiktok.com/@vitadefence",
"https://x.com/vitadefence",
"https://youtube.com/@vitadefence"
],
"contactPoint": [
{
"@type": "ContactPoint",
"contactType": "customer service",
"email": "info@vitadefence.com"
}
],
"description": "63 premium supplements (mostly plant-based) · HPMC capsules · Made in the UK · GMP certified · FREE Royal Mail Tracked 48® delivery."
}
</script>
Step 2 — Add the WebSite block
Paste this into the <head> of https://vitadefence.com, whole, tag and all:
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "WebSite",
"name": "Vitadefence UK",
"url": "https://vitadefence.com"
}
</script>
Left out rather than guessed at
Your site does not state these anywhere we could read, so they are not in the block. An invented value in machine-readable data is worse than a missing one — put it on the page first, then add it here.
- a telephone number (no tel: link on the page)
- a postal address - their LocalBusiness example carries address as a PostalAddress with streetAddress, addressLocality, addressRegion, postalCode and addressCountry. This site does not state one anywhere we can read, so it is LEFT OUT rather than guessed
- opening hours and geo coordinates - same reason, left out
How to check you did it right
- Run each block through Google’s own Rich Results Test at
search.google.com/test/rich-resultsbefore you ship it. - Read each value back against the page itself.
nameshould be exactly what vitadefence.com calls itself. - Here that is Vitadefence UK — if that is wrong, fix it on the page first, not in the block.
What it looks like when it is working
- vitadefence.com carries 4 block(s) instead of 2, and every value in them matches something a visitor can read on the page.
The finished file is in your pack at packs/05-structured-data/organization.jsonld.
6. Can a paragraph survive being quoted
What this is
An assistant answering a question lifts a passage out of a page. A paragraph that opens with It, This or They refers to something that lived in the paragraph before — lifted out, it means nothing.
Why this matters for vitadefence.com
52 paragraph(s) on vitadefence.com cannot survive being lifted out of the page. An assistant answering a question quotes a passage, not a website — a paragraph that opens with It or This refers to something that stayed behind.
What we found on vitadefence.com
369 of 421 paragraphs across 10 page(s) could be lifted out and quoted as they stand. 421 page(s) exist in the sitemap; 10 were read.
369 of 421 paragraph(s) across 10 page(s) of vitadefence.com could be lifted out and quoted as they stand.
| Page | Could be quoted | Paragraphs with a stranded opening |
|---|---|---|
| https://vitadefence.com/articles/african-mango | 0.69 | 7 |
| https://vitadefence.com/articles/amino-acid-multi | 0.7 | 9 |
| https://vitadefence.com/articles/artichoke-multi | 0.7 | 4 |
| https://vitadefence.com/articles/acerola-multi | 0.81 | 6 |
| https://vitadefence.com/articles/acai-berry-multi | 0.85 | 6 |
This is our own measure, not a published standard.
Step 1 — Open your worst page first
https://vitadefence.com/articles/african-mango — 7 of its paragraphs carry a stranded opening, the most on the site.
Step 2 — Rewrite the opening words, nothing else
Where a paragraph starts with It, This, They, These, There or However, replace that word with the thing it means. You are not rewriting the page — you are putting the subject back into the first sentence.
Step 3 — Work down the list
Then the next pages, in this order:
- https://vitadefence.com/articles/amino-acid-multi
- https://vitadefence.com/articles/artichoke-multi
- https://vitadefence.com/articles/acerola-multi
- https://vitadefence.com/articles/acai-berry-multi
How to check you did it right
- Take one rewritten paragraph, read it on its own with the page hidden, and ask whether it still says who and what it is about.
- If it does not, the opening word is still doing work the sentence should do.
What it looks like when it is working
- The ratio for vitadefence.com moves up from 0.88 toward 1.0 — today it is 369 liftable out of 421.
- This is our own measure, not a published standard.
The finished file is in your pack at packs/06-quotability/quotability.csv.
7. The pages nothing links to
What this is
A page no link points at is a page a search engine may never find. This builds the three things that fix that: a complete sitemap file, an HTML page listing every address as a real link, and a footer block of the hub links.
Why this matters for vitadefence.com
A page no link points at is a page a search engine may never find. This builds the three things that fix that: a complete sitemap file, an HTML page listing every address as a real link, and a footer block of the hub links. For vitadefence.com, this is what that check found.
What we found on vitadefence.com
423 address(es) found across 25 page(s) read. 421 are already in the site’s own sitemap, 2 are not, and 1 sitemap entry/entries could not be read.
This check was run against https://vitadefence.com.
What it gives you for vitadefence.com: the finished sitemap.xml, the HTML sitemap page, and the footer block — built only from addresses your own site already has. No date is invented: a last-modified date appears only where your own existing sitemap already declared one.
Step 1 — The pages nothing links to
sitemaps.org (protocol 0.9): a Sitemap must “Begin with an opening <urlset> tag and end with a closing </urlset> tag”, “Specify the namespace (protocol standard) within the <urlset> tag”, “Include a <url> entry for each URL, as a parent XML tag” and “Include a <loc> child entry for each <url> parent tag”. “All other tags are optional.” “The file itself must be UTF-8 encoded.” “All URLs in a Sitemap must be from a single host.” Save the file at your site root and link the HTML version from your footer.
1. Save this as sitemap.xml at the root of your site:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://vitadefence.com/</loc>
<lastmod>2026-08-20T14:54:01.138Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/account</loc>
</url>
<url>
<loc>https://vitadefence.com/articles</loc>
<lastmod>2026-08-20T14:54:01.138Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/acai-berry-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/african-mango</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/aloe-vera-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/amino-acid-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/apple-cider-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/apple-cider-vinegar</loc>
<lastmod>2026-06-01T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/artichoke-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/ashwagandha-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/bilberry-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/botanical-fibre-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://vitadefence.com/articles/botanical-multi</loc>
<lastmod>2026-05-09T00:00:00.000Z</lastmod>
</url>
<url>
Shown in part — the first 60 lines of 2152. The whole file is in your pack at packs/07-discovery/sitemap-and-links.txt.
How to check you did it right
- Open
packs/07-discovery/sitemap-and-links.txtand compare it with what https://vitadefence.com serves today. - The rule this follows is theirs, not ours:
sitemaps.org/protocol.html
What it looks like when it is working
- Every address we found is already reachable and already declared, so there is nothing to add. (as measured on https://vitadefence.com)
The finished file is in your pack at packs/07-discovery/sitemap-and-links.txt.
8. The trust signals a reader and a machine both look for
What this is
Eight mechanical, countable things a person can walk over to your page and check: a named author, a page about that author, a date a reader can see, links out to sources, concrete numbers, a way to make contact, an about page that answers, and a company identity.
Why this matters for vitadefence.com
Eight mechanical, countable things a person can walk over to your page and check: a named author, a page about that author, a date a reader can see, links out to sources, concrete numbers, a way to make contact, an about page that answers, and a company identity. For vitadefence.com, this is what that check found.
What we found on vitadefence.com
10 page(s) read. All 8 content signals were found. Every line carries the tag or text it was read from. No score is given, because no published specification defines one
This check read 10 address(es) on vitadefence.com:
- https://vitadefence.com
- https://vitadefence.com/articles
- https://vitadefence.com/articles/acai-berry-multi
- https://vitadefence.com/articles/acerola-multi
- https://vitadefence.com/articles/african-mango
- https://vitadefence.com/articles/aloe-vera-multi
- https://vitadefence.com/articles/apple-cider-multi
- https://vitadefence.com/articles/apple-cider-vinegar
What it gives you for vitadefence.com: the list of which of the eight are missing, each with the tag or the text it was read from. No score is given — nobody publishes a formula for trust, so nobody can compute one honestly.
Step 1 — The trust signals a reader and a machine both look for
Nothing to install. This is a list of which trust signals your own pages do and do not carry, each with the tag or text it was read from, so a person can check every line. There is no published specification that defines a trust score, so no score is given and none should be accepted from anyone.
10 page(s) read. All 8 content signals were found. Every line carries the tag or text it was read from. No score is given, because no published specification defines one
- the author is linked to a page about that author: found on 8 of the 10 page(s) read
- a publication or updated date a reader can see: found on 2 of the 10 page(s) read
- links to sources on other domains: found on 1 of the 10 page(s) read
- a publication or updated date a reader can see: 8 page(s) carry a date in the code that a reader never sees on the page
- pages read: 1 page(s) in the sitemap could not be read: https://vitadefence.com/articles/amino-acid-multi (URLError: <urlopen error _ssl.c:1012: The handshake operation timed out>)
How to check you did it right
- Open
packs/08-trust-signals/trust-signals.txtand compare it with what https://vitadefence.com serves today.
What it looks like when it is working
- All eight signals were found on at least one page. (as measured on https://vitadefence.com)
The finished file is in your pack at packs/08-trust-signals/trust-signals.txt.
9. Which AI engines can actually reach you
What this is
“AI” is not one thing. The same site can be readable by one engine and invisible to another, and the reason differs per vendor — blocking one company’s user-fetcher costs you nothing, blocking another’s may reduce your visibility, in that vendor’s own words.
What we found on vitadefence.com
All 5 engine(s) checked can reach this site. Nothing to change. 6 item(s) are openly not checked. Nothing about them is claimed.
All 5 engine(s) we check can reach vitadefence.com. Its robots file answered HTTP 200.
| Engine | Can reach vitadefence.com |
|---|---|
| OpenAI | yes |
| Anthropic | yes |
| Perplexity | yes |
| Apple | yes |
| yes |
Measured on https://vitadefence.com.
The file at packs/09-per-engine/per-engine.txt says the same thing for vitadefence.com, so you can check this yourself rather than take our word for it.
Nothing to do here yet
There is no step to follow in this chapter for vitadefence.com today. Nothing has been invented to give you something to do.
When this starts to matter
Every engine we check can reach your site.
10. The extra machine-readable blocks your pages qualify for
What this is
Beyond the block that describes the business itself, a page can declare what it IS — an article, a product with a price, a piece of software. Machines read those declarations directly instead of guessing.
What we found on vitadefence.com
No block was produced. Nothing on this page marks it as an article, a product or a software application. Nothing was invented to make one. Check anything you publish with Google’s Rich Results Test: search.google.com/test/rich-results
Nothing on the pages read from vitadefence.com marks them as an article, a product or a piece of software, so there is no extra block to add.
Measured on https://vitadefence.com.
The file at packs/10-extra-blocks/extra-blocks.jsonld says the same thing for vitadefence.com, so you can check this yourself rather than take our word for it.
Nothing to do here yet
There is no step to follow in this chapter for vitadefence.com today. Nothing has been invented to give you something to do.
When this starts to matter
Nothing on the pages read marks them as an article, a product or a piece of software, so there is no extra block to add.
What we could not check
1 check(s) did not complete against vitadefence.com. Each one is named below with the reason recorded at the time. None of them is reported as a pass.
The language block
no version of the site could be read, so nothing is claimed
No result is claimed either way. This is not a clean pass and it is not an empty finding — the check did not complete, and this chapter exists to tell you so.
How this was measured
9 of 10 checks ran against vitadefence.com on 31 August 2026. Every rule applied comes from the published documentation of the company that set it; the one exception is the quotability chapter, which is our own measure and says so wherever it appears.
The pages read, and what each chapter was built from:
| Chapter | Built from |
|---|---|
| The language block | did not run |
| The preferred-source button | https://vitadefence.com |
| Can the answer engines read you | https://vitadefence.com |
| The plain-text summary for machines | https://vitadefence.com |
| What the site says about itself, in machine form | https://vitadefence.com |
| Can a paragraph survive being quoted | https://vitadefence.com/, https://vitadefence.com/articles, https://vitadefence.com/articles/acai-berry-multi (+7 more) |
| The pages nothing links to | https://vitadefence.com |
| The trust signals a reader and a machine both look for | https://vitadefence.com, https://vitadefence.com/articles, https://vitadefence.com/articles/acai-berry-multi (+7 more) |
| Which AI engines can actually reach you | https://vitadefence.com |
| The extra machine-readable blocks your pages qualify for | https://vitadefence.com |
This is our own measure, not a published standard. This is our own measure, not a published standard, and it is labelled that way wherever it appears.