30 checks in Multimodal Content & Media. Automated Its subsection has a live automated checker in the engine.
| ID | Check | Passes when |
|---|---|---|
| 8.5.01 | Validate every media asset includes a title | Present |
| 8.5.02 | Validate every media asset includes a description | Present |
| 8.5.03 | Validate image alt text descriptive & accurate | Descriptive |
| 8.5.04 | Validate video descriptions include contextual summary | Summarized |
| 8.5.05 | Validate audio descriptions present (non-transcript) | Present |
| 8.5.06 | Detect missing metadata (title, alt, caption) | None |
| 8.5.07 | Validate media filenames SEO-optimized | Optimized |
| 8.5.08 | Validate media descriptions avoid keyword stuffing | Clean |
| 8.5.09 | Detect contradicting metadata across media versions | None |
| 8.5.10 | Validate captions match media content | Matching |
| ID | Check | Passes when |
|---|---|---|
| 8.5.11 | Validate structured data exists for all media types | Present |
| 8.5.12 | Validate structured data syntax valid (JSON-LD) | Valid |
| 8.5.13 | Validate schema type correct (ImageObject, VideoObject, AudioObject) | Correct |
| 8.5.14 | Validate metadata fields populated (name, description, url, uploadDate) | Populated |
| 8.5.15 | Validate schema metadata aligns with page context | Aligned |
| 8.5.16 | Detect missing thumbnailUrl for video objects | None |
| 8.5.17 | Validate EXIF/metadata readable for images (when applicable) | Readable |
| 8.5.18 | Validate structured data not duplicated or conflicting | Clean |
| 8.5.19 | Validate media entities recognized by LLM entity parsers | Recognized |
| 8.5.20 | Compute Structured Media Metadata Score | Finalized |
| ID | Check | Passes when |
|---|---|---|
| 8.5.21 | Validate media content supports page’s core topic | Supportive |
| 8.5.22 | Validate all media aligns with semantic clusters | Aligned |
| 8.5.23 | Detect misleading or off-topic visuals | None |
| 8.5.24 | Validate media enhances factual clarity | Enhanced |
| 8.5.25 | Validate LLMs interpret media metadata consistently | Consistent |
| 8.5.26 | Detect semantic conflict between media + surrounding text | None |
| 8.5.27 | Validate metadata supports AI multimodal understanding | Supportive |
| 8.5.28 | Validate additional metadata fields (duration, bitRate, encodingFormat) | Present |
| 8.5.29 | Validate media metadata freshness (updated when content updated) | Fresh |
| 8.5.30 | Compute Multimodal Alignment Master Score | Finalized |
← 8.4 Audio Transcript Availability & Multimodal Accessibility8.6 Visual AI Embedding Consistency →
A Deep Audit scores every check here that applies to your page, then an AI pass of up to 150 checks. Included on Pro and Ultra, or $9 for one audit.
See plansMachine-readable: catalog totals and the full catalog as JSON (IDs, section, weight, status).