Kuroma
AI Readability Score
What this check reads on your page
Inside the page's main content region, the text is split into sentences at full stops, question marks, exclamation marks and their Chinese and Japanese forms, and at the boundary of every block element, so a heading and a list item are never read as one sentence. The score comes from the average sentence length, which is best at fifteen words and worst at thirty-five, and from the share of prose paragraphs under fifty words, counting only blocks that hold a sentence and are not mostly link text. It also notes whether the content uses bold, italic or highlighted text. A page with no sentence-length text is reported as unscored rather than failed.
Our verdict on the evidence
Evidence-backed Engines preferentially select easier, clearer text, and fluency rewrites improve citation rates in controlled sandboxes. A moderate, causal signal.
GEO: Generative Engine Optimization (arXiv 2311.09735)
The score is a proxy for a quality it cannot read: it counts words per sentence and per paragraph and never asks whether a sentence is clear, so a short muddled sentence passes and a long lucid one does not. What it stands in for is the retriever's window. A passage that fits inside one is quoted as written; one that runs past it is trimmed at whatever boundary the engine picks, which is rarely the boundary you would have chosen.
What it is worth
12% of On-Page Content, which is 3 points of the overall 100.
How audited pages score on it
Based on 29,756 audited pages.
The median page scores 70, and the middle half of pages score between 70 and 81.
- Good (75 to 100)11,920 (40%)
- Moderate (50 to 74)15,392 (52%)
- Needs work (25 to 49)2,384 (8%)
- Critical (0 to 24)60 (0%)
8% of audited pages score below 50 on it.
Where it fails most and least
Industries that fail it most
- Streaming / Video: 14% of 714 audited pages fail it
- DTC / Consumer Brands: 13% of 988 audited pages fail it
- Publishing / News Media: 13% of 877 audited pages fail it
- Gaming: 12% of 769 audited pages fail it
- Healthcare Services: 12% of 217 audited pages fail it
Industries that fail it least
- AI / Machine Learning: 1% of 471 audited pages fail it
- Cybersecurity: 3% of 106 audited pages fail it
- SaaS / Cloud Software: 3% of 184 audited pages fail it
- MarTech / Marketing Platform: 3% of 197 audited pages fail it
- Mental Health / Wellness: 4% of 114 audited pages fail it
How to fix it
- Split any sentence past twenty-five words into two; the sentence tier is at its best near fifteen words on average.
- Keep paragraphs under fifty words; the paragraph tier scores the share of them that stay under that line.
- Write the content as paragraphs rather than as headings over lists of links; a block that is mostly link text does not count as prose.
- Bold the key term or figure in a passage; the check credits bold and italic text in the content region.