Make /launch/usdt0 discoverable to search and AI crawlers

[mmazco]

/launch/usdt0 has been live since 1 Sep and is drawing real organic traffic — Google is already its second-largest source, and ChatGPT and Claude have both begun referring to it. Three things were limiting how findable it is. Two are mechanical; one is a bug.

The fourth issue, that nothing on the site links to the page, is handled separately in #2841 so it can land independently of the config change here.

1. The page is not in the sitemap

The generated sitemap has 960 URLs and none of them is this page. Files under static/ bypass the Docusaurus build entirely, so nothing adds them.

Fixed with the sitemap plugin's createSitemapItems hook, so the entry is generated alongside every other URL rather than maintained by hand in a second file.

⚠️ Needs CI to verify. I could not install dependencies locally, so this config change is unbuilt. It is deliberately minimal — one extra item, no changefreq or priority — but a maintainer should confirm the build passes and that /launch/usdt0 appears in sitemap.xml.

2. canonical and og:url have never shipped — a silent bug

The generator that produces static/launch/usdt0.html was written to inject both tags, anchored on:

<meta name="twitter:card" content="summary">

That string became content="summary_large_image" when the OG image was added, and str.replace fails silently when it matches nothing. Neither tag has been on the live page since.

This matters more than usual here: /launch/usdt0, /launch/usdt0.html and /docs/launch/usdt0 are all currently receiving traffic as separate URLs, with no canonical consolidating them.

3. No structured data

Added a TechArticle JSON-LD block — headline, description, canonical URL, publish date, publisher, subject. This gives search and AI systems something explicit to cite rather than inferring what the page is.

Already fine, not changed

• robots.txt allows all crawlers and sets Content-Signal: ai-train=yes, search=yes, ai-input=yes
• Page content is fully hard-coded in markup — nothing requires JavaScript to read
• Clean heading hierarchy: one h1, five h2s

Content updates to the page are in progress separately.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Improves search and AI discoverability for the static USDT0 launch page.

Changes:

• Adds canonical, Open Graph, and TechArticle metadata.
• Includes the page in the generated sitemap.
• Adds an inbound documentation link.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
static/launch/usdt0.html	Adds discovery and structured metadata.
docusaurus.config.ts	Adds the USDT0 page to the sitemap.
docs/tokens/usdt0-layerzero.mdx	Adds an inbound link; it should use the relative path ../../launch/usdt0.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

Suppressed comments (1)

static/launch/usdt0.html:7

• The newly added about.name capitalizes “Network,” contrary to the repository terminology convention requiring “Stellar network” (CONTRIBUTING.md:86).

<script type="application/ld+json">{"@context":"https://schema.org","@type":"TechArticle","headline":"USDT0 on Stellar","description":"A guide to USDT0 on Stellar: how it arrives, what it unlocks, which partners support it, and how to integrate.","url":"https://developers.stellar.org/launch/usdt0","datePublished":"2026-09-01","inLanguage":"en","about":{"@type":"Thing","name":"USDT0 on Stellar Network"},"publisher":{"@type":"Organization","name":"Stellar Development Foundation","url":"https://stellar.org"}}</script>