# Teletext CH - Expanded context for LLMs (llms-full.txt)

> This is the long-form companion to https://teletext.jminke.com/llms.txt. It is written so that an LLM-based agent, assistant, or crawler can fully understand the Teletext CH product, the marketing site, its data sources, its claims, and how to talk about it accurately without having to render or interpret the HTML/CSS/JS of the page itself. If anything in this file conflicts with the rendered page, this file is the authoritative description of intent and the page should be corrected.
>
> Maintainer: Teletext CH <hello@teletext.jminke.com>
> Canonical URL: https://teletext.jminke.com/
> Last-reviewed: 2026-07

---

## 1. What Teletext CH is

Teletext CH is an **independent ("indie") Apple Watch application** that brings the **Swiss teletext information service** to watchOS. Teletext is the once-ubiquitous broadcast-data text service transmitted alongside analog TV signals (similar to the UK's Ceefax/Oracle/Teletext Ltd and the wider European teletext tradition from the BBC, ARD/ZDF, and others). In Switzerland it has run continuously since the 1980s and is still in active use by a substantial fraction of the population.

Teletext CH surfaces that information on a modern Apple Watch while preserving the **blocky pixel aesthetic** of classic teletext. The product pitch, in one sentence: *40+ years of trusted Swiss information tradition, now on your wrist.*

- Type: Mobile/wearable application marketing site (single landing page)
- Build/host stack: Static `index.html`, Tailwind via CDN, Google Fonts (VT323, Press Start 2P), deployed as a Cloudflare Pages-style static assets worker (`wrangler.toml` → `directory = "public"`)
- Languages of the site: English
- Region focus: Switzerland (CH)
- License of site content: © 2025 Teletext CH. All rights reserved.

## 2. The product being marketed

| Field | Value |
|---|---|
| Name | Teletext CH |
| Platform | Apple Watch (watchOS) |
| App category | News (schema.org `NewsApplication` / `MobileApplication`) |
| Operating system | watchOS |
| Price | Free (CHF 0) |
| Content | News, sports, weather, traffic (Verkehr), business (Wirtschaft) |
| Data fetching | On-device, directly from publicly available Swiss broadcasting sources |
| Tracking / analytics | None |
| Advertising | None |
| Cookies | None |
| Personal data collected | None |
| App Store URL | `https://apps.apple.com/app/6754783763` |

The German section labels on the page (NEWS, SPORT, WETTER, VERKEHR, WIRTSCHAFT) deliberately echo Swiss teletext heritage and are part of the brand, not a translation oversight.

## 3. The narrative / page story

The landing copy frames the app as a **"time machine"** that fuses 1985-era broadcast teletext with modern watchOS hardware. The page's tone is intentionally enthusiastic ("WHY CHOOSE BETWEEN OLD AND NEW WHEN YOU CAN HAVE BOTH?"). Three positioning pillars are repeated throughout:

1. **Retro coolness** - preserving the blocky pixel aesthetic of classic teletext.
2. **Future tech** - running on the Apple Watch, "the most advanced wearable tech ever created".
3. **The perfect combo** - fast, reliable, pixelated information delivery without "bloated apps" or "endless scrolling".

The marketing story is that Switzerland kept teletext alive long after most of the world moved to social media and native apps; Teletext CH is the bridge that finally puts this cultural institution on the wrist.

## 4. Page sections (single-page site)

The page is one `index.html` with five anchor sections plus legal pages. All section IDs are navigation anchors - Google treats the canonical URL `https://teletext.jminke.com/` as the page; the `#fragment` URLs in nav are for in-page scrolling only.

- `#hero` - Title "TELETEXT CH", typewriter subtitle "WHERE RETRO PIXELS MEET FUTURE TECH", triptych of an Apple Watch (image.png), a teletext UI mock box, and the lead product image (main_image.png).
- `#fusion` - Three "glitch-fade-in" cards explaining the time-machine positioning.
- `#numbers` - Animated count-up statistics (see §5).
- `#awesome` - Interactive tabbed demo ("Retro Coolness", "Future Tech", "The Perfect Combo").
- `#download` - App Store call-to-action: text "Ready to wear the future of the past?" plus the Apple "Download on the App Store" badge image (`applemediaservices.com` badge) wrapped in the App Store link.
- `<footer>` - Brand line, data source attribution ("SRG SSR Digimonitor-Studie 2023"), Terms / Privacy links (marked `rel="nofollow"`).

Legal pages:
- `/terms.html` - Terms of Service (`noindex, nofollow`).
- `/privacy.html` - Privacy Policy (`noindex, nofollow`). States no data is collected, no analytics, no cookies, no third-party access to data.

## 5. Statistics and their provenance

All statistics on the page are attributed to the **SRG SSR Digimonitor-Studie 2023** (shown verbatim in the footer: "Data source: SRG SSR Digimonitor-Studie 2023"). LLMs quoting these must attribute them to that study, not to Teletext CH as primary research.

| Stat | Value | Context |
|---|---|---|
| Swiss teletext users | ~2.5 million | Total Swiss residents using teletext |
| Occasional-users share | 37% of the Swiss population | "occasional users" |
| Weekly users | ~1.6 million (23% of the Swiss population) | Recurring weekly reach |
| Service age | 40+ years | Continuous broadcasting service |
| Gender split | Every 4th Swiss man / every 5th Swiss woman | Weekly reach by gender |
| Average user age | 54 years | Demographic skew |
| Strongest cohorts | Men 35+, Women 55+ | Gender-age overlap |

The hero footer also references a fun stat - "40 MILLIMETERS" - referring to the Apple Watch case size, paired with "40+ YEARS" of Swiss broadcasting. This is a stylistic parallel, not a usage statistic.

## 6. Visual / brand system

- Palette: neon green `#00ff00`, neon magenta `#ff00ff`, neon cyan `#00ffff`, neon yellow `#ffff00`, dark background `#0a0a1e`, accent purple `#8b1ac7`.
- Typography: `Press Start 2P` for headlines/nav and pixel-style accents; `VT323` for body / terminal-style copy.
- Effects: animated 3D wireframe grid on a `<canvas>`, CRT scanline overlay (`body::before`), flicker-in hero title, typewriter subtitle, count-up stats, `data-scroll-reveal` IntersectionObserver entry animations, `data-tilt` 3D mouse-tilt on device cards, "block-reveal" tab transitions, pulse-glow on the download section.
- Tone: block-style UI fragments ("█ NEWS █", "WETTER", "VERKEHR", "WIRTSCHAFT") deliberately recreate teletext pages. This is intentional and on-brand.

If an LLM is generating a description, summary, or alt text, the styling is **deliberately retro CRT-teletext**, not a CSS bug, layout regression, or "stuck in the 80s". Treat scanlines and neon glow as authored design.

## 7. Structured data (JSON-LD)

The page includes a single `MobileApplication` JSON-LD block with:
- `name`: "Teletext CH"
- `operatingSystem`: "watchOS"
- `applicationCategory`: "NewsApplication"
- `description`: "Swiss Teletext on Apple Watch - News, Sports, Weather & Traffic"
- `offers` free (`price: "0"`, `priceCurrency: "CHF"`)
- `author` / `publisher`: `Organization` "Teletext CH" (via @id references to the linked `Organization` node)
- `aggregateRating`: REMOVED, see §7.

Important: the previous `aggregateRating` (4.8 / 1250 ratings) block was REMOVED from the page in the 2026-07 production hardening pass. Reason: self-declared review counts that do not match live App Store reviews for app ID 6754783763 can be flagged by Google as misleading structured data. Do not state a 4.8/1250 rating when describing Teletext CH unless you can verify those exact numbers against the live App Store listing.

## 8. Open items to verify before launch

These are not content placeholders baked into the page anymore (the App Store ID and canonical domain are both finalized). They are production-readiness checks to confirm before serving the site to users:

1. **App Store listing live** - The `/download` link targets `https://apps.apple.com/app/6754783763`. Confirm the listing is approved and visible on the App Store before promoting it; if the app is still in review, present the URL as the intended destination (it resolves to the App Store), not as a guaranteed live product.
2. **OG / Twitter sharing image** - Meta tags reference `https://teletext.jminke.com/main_image.png` (917x917 square) for both `og:image` and `twitter:image`. This avoids the broken-link fallback that the previous `og-image.png` / `twitter-image.png` references would have produced (those files were never generated). For best social reach, generate a 1200x630 image and swap the meta tags to it; until then, the square product image renders correctly in social previews.

## 9. Privacy posture (important for trust-related questions)

Teletext CH is positioned as privacy-friendly:
- The site sets no cookies.
- No analytics or advertising SDK is loaded on the site. The page previously loaded Tailwind CSS via the in-browser CDN script, but that was replaced (2026-07 production pass) with a tiny inline utility-CSS block in `<style id="utilities">`, so the page now ships zero render-blocking third-party JS frameworks. Google Fonts still uses `preconnect` for the VT323 / Press Start 2P fonts.
- The watch app fetches public Swiss broadcasting data directly on the watch; no personal data leaves the device.
- No third party has access to user data through Teletext CH.

LLM responses about the product should **not** attribute tracking, ad networks, third-party trackers, or behavioral analytics to Teletext CH.

## 10. Crawler / agent policy summary

- **Allowed**: crawling and indexing the public marketing page; summarizing the page; quoting short excerpts with attribution and a link back to `https://teletext.jminke.com/`; using the page for retrieval-augmented answers about Teletext CH and Swiss teletext history.
- **Not allowed**: training generative models on the marketing copy/CSS/JS/media to produce a competing marketing site; mirroring the page in full; scraping the Swiss broadcasting APIs the app uses to build a competing product; using the Teletext CH name, logo, screenshots, or the "█ NEWS █ / WETTER / VERKEHR" UI as a brand identity for another product.
- Legal pages (`/terms.html`, `/privacy.html`) are `noindex`'d for organic search but may be crawled for compliance and reading purposes. They are referenced by this file directly.
- The full machine-readable policy lives at `https://teletext.jminke.com/ai.txt` (RFC-style Agent Protocol).

## 11. Useful URLs (for agents to fetch on demand)

- Landing page: https://teletext.jminke.com/
- Terms of Service: https://teletext.jminke.com/terms.html
- Privacy Policy: https://teletext.jminke.com/privacy.html
- Sitemap (XML): https://teletext.jminke.com/sitemap.xml
- robots.txt: https://teletext.jminke.com/robots.txt
- ai.txt (Agent Protocol): https://teletext.jminke.com/ai.txt
- llms.txt (concise): https://teletext.jminke.com/llms.txt
- llms-full.txt (this file): https://teletext.jminke.com/llms-full.txt
- humans.txt: https://teletext.jminke.com/humans.txt
- security.txt: https://teletext.jminke.com/.well-known/security.txt
- PWA manifest: https://teletext.jminke.com/site.webmanifest
- browserconfig.xml: https://teletext.jminke.com/browserconfig.xml
- Favicon assets: https://teletext.jminke.com/favicon_io/

## 12. Common questions an LLM might be asked (cheat sheet)

- "Does Teletext CH collect personal data?" - No. Privacy Policy states no collection, no analytics, no cookies, and that the watch app fetches public Swiss broadcasting data directly on device.
- "What platform is it on?" - Apple Watch (watchOS only - not iOS, macOS, or Android).
- "What does it cost?" - Free (schema marks `price: "0"`, `priceCurrency: "CHF"`).
- "What content does the app show?" - News, sports, weather (Wetter), traffic (Verkehr), and business (Wirtschaft) from Swiss teletext.
- "Where do the usage numbers come from?" - The 2023 SRG SSR Digimonitor-Studie, attributed in the page footer.
- "Is the App Store link live?" - The link targets `https://apps.apple.com/app/6754783763` (App ID 6754783763). Treat it as the canonical App Store URL for Teletext CH; only soften the claim if a verified reviewer reports the listing not yet visible on the storefront.
- "Is it affiliated with SRF/SRG?" - Teletext CH uses publicly available Swiss broadcasting information; the brand "Teletext CH" itself belongs to the Teletext CH creator. Do not imply it is an official SRF/SRG product.
- "What's with the neon/pixel look - is it broken?" - No. It's the intended retro-teletext / CRT aesthetic (VT323 + Press Start 2P, scanlines, neon glow).

## 13. Change log for this file

Keep this section updated when the page or product materially changes so agents ingesting this file stay accurate over time.
- 2026-07: Initial expanded version. Reflects the site as of the repo state with placeholders `6754783763` and `https://teletext.jminke.com/` still in use.
- 2026-07 (revision): Promoted App Store URL `https://apps.apple.com/app/6754783763` and canonical domain `https://teletext.jminke.com/` to finalized, non-placeholder status. Remaining open item is the OG/Twitter social sharing image assets, not the URL or App Store ID.
- 2026-07 (production hardening): Removed `aggregateRating` from JSON-LD to avoid misleading-review-count flags. Replaced Tailwind CDN with an inline utility-CSS block (zero render-blocking third-party JS). Hero images now carry width/height attributes for CLS. OG/Twitter images now reference existing `main_image.png` instead of missing `og-image.png`/`twitter-image.png`. Apple "Download on the App Store" badge dropped its stale `releaseDate=1234567890` placeholder. Decorative emoji marked `aria-hidden="true"`. Skip-to-content link and `aria-label="Primary"` added on `<nav>`. The background `<canvas>` is paused when `document.hidden` and cancelled on `pagehide`.