Readability and keyword density checker

What the scores mean

• Grade level (Flesch-Kincaid) estimates the years of schooling needed to follow the text. Most web articles do best between grade 7 and 10, even for expert readers, because people skim on phones.
• Flesch reading ease runs from 0 to 100. Higher is easier. Anything above 60 reads comfortably.
• Long sentences are anything over 30 words. The tool lists your longest so you can split them.

What keyword density should you aim for?

Google has said for years that it doesn't use a keyword density target. There's no magic percentage. The number is still useful as a warning light: under about 0.5% often means the page never clearly states its topic, and over 3% usually reads as stuffing. Between those, write naturally and use related words. The "most repeated phrases" list helps you spot phrases you lean on too hard.

Readability isn't dumbing down

Short sentences and plain words don't make an article shallow. They make the ideas easier to see. Keep the technical terms your readers expect, explain the rest, and let each paragraph make one point.