Open Graph card (1200×630 PNG)
A 1200×630 Open Graph preview card at the exact og:image aspect ratio, for testing link-preview generators, social-card renderers, and image pipelines.
Specifications
- Size
- 1200x630
- Ratio
- 1.91:1
- Use
- og:image
- Format
- PNG
Testing contract
Expected to pass- Scenario
- Exercise Open Graph card (1200×630 PNG) in its social workflow. A 1200×630 Open Graph preview card at the exact og:image aspect ratio, for testing link-preview generators, social-card renderers, and image pipelines.
- Expected result
- Decoded geometry is 1200×630 pixels in RGB mode; frame count is 1. Declared feature checks: size=1200x630; ratio=1.91:1; use=og:image.
What is a .png file?
PNG (Portable Network Graphics) is a raster image format using lossless DEFLATE compression. It supports full 8- or 16-bit-per-channel truecolor, palette, and greyscale modes with an optional alpha channel, but no animation. It is the standard choice for screenshots, logos, and graphics with sharp edges or transparency.
How to use this file
Use an example PNG to test image decoders, alpha-compositing, thumbnail generators, and format converters, or to verify that a pipeline preserves transparency and color depth on round-trip.
How to use this file for testing
“Open Graph card (1200×630 PNG)” is a deterministic Testaroo fixture for Web assets. Favicons, web app manifests, service workers, robots and sitemap files, Open Graph images, and .well-known resources, for testing web tooling, crawlers, PWA installers, and asset pipelines.
Documented properties for this file: PNG. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such, expect parsers to fail loudly rather than silently accept them.
Web-platform fixtures are standards-compliant samples against fictional example.com data. Test crawlers, PWA installers and manifest validators, favicon/icon pipelines, service-worker registration, or .well-known parsers against the documented structure.
Code examples
<img src="og-card.png" alt="Example image" width="640" loading="lazy">Generated by generation/web_assets.py. Free for any use, no attribution required, license.
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