Structured Data LLM Test Suite

All pages describe the same fictional business — The Copper Kettle Café — using different markup formats.

What This Tests

Upload these files to a domain, then ask an LLM to crawl each URL and surface business details (name, address, hours, menu, reviews, etc.). Compare which formats the model extracts most accurately and completely.

Test Pages

• JSON-LD Schema.org — embedded <script type="application/ld+json">
• Microdata Schema.org — inline itemscope / itemprop attributes
• RDFa Lite Schema.org — inline vocab / typeof / property attributes
• Microformats2 h-card / h-review — class-based markup
• Open Graph + Twitter Cards Meta tags — <meta property="og:…">
• Plain Meta Tags Baseline — no schema, just standard HTML meta + semantic markup
• Combined (all formats) Kitchen sink — every format on one page

Canonical Test Data

Every page encodes the same facts. Use this as your answer key:

• Business: The Copper Kettle Café
• Type: CoffeeShop / Café / Restaurant
• Address: 42 Orchard Lane, Ambleside, Cumbria, LA22 9BU, UK
• Phone: +44 1539 432100
• Website: https://copperkettle.example.com
• Coordinates: 54.4291, -2.9626
• Hours: Mon–Fri 07:00–18:00, Sat 08:00–19:00, Sun 09:00–16:00
• Price range: ££ (moderate)
• Cuisine: British, Bakery, Vegetarian-friendly
• Menu items: Lakeland Flapjack £3.50, Full Cumberland Breakfast £12.95, Afternoon Tea for Two £28.00
• Rating: 4.7 / 5 (based on 238 reviews)
• Sample review: "Best scones in the Lake District" — Margaret H., 5 stars, 2025-11-14
• Founder: Eleanor Tyson, established 2018