Free Readability & Keyword Density Checker
Paste your text to see how easy it is to read and how often your keyword appears — with simple suggestions to improve both.
Free · no sign-up needed
Reading ease
77
Easy — good for most web readers
Grade level
5.9
Words
109
Keyword density
1.83%
Checks
- Good
Reading ease
77/100 — Easy — good for most web readers. Aim for 60+.
- Good
Grade level
About US grade 5.9. Most web content reads best at grade 7–9.
- Good
Sentence length
13.6 words on average; 0 sentence(s) over 25 words.
- Good
Keyword density
"email marketing" appears 1× (1.83%). Around 0.5–2.5% reads naturally; more looks like stuffing.
- Good
Keyword in the first paragraph
Yes — good, it tells readers and Google the topic early.
Most used words
- one · 3 · 2.8%
- email · 2 · 1.8%
- send · 2 · 1.8%
- message · 2 · 1.8%
- keep · 2 · 1.8%
- marketing · 1 · 0.9%
- cheapest · 1 · 0.9%
- ways · 1 · 0.9%
- reach · 1 · 0.9%
- customers · 1 · 0.9%
- straight · 1 · 0.9%
- inbox · 1 · 0.9%
Want the whole article written?
RankFlowHQ reads the top Google results for your keyword and writes a researched, SEO-ready article with sources, title and meta description.
Write the full article — free →How to use it
- Optionally enter the keyword you're targeting.
- Paste your article or draft.
- Follow the checks: shorten long sentences, simplify wording, and keep keyword use natural.
Questions
What is a good Flesch reading ease score?
60 or higher is easy for most web readers. Scores below 50 are harder and suit technical or academic audiences.
What keyword density is best?
There's no magic number. Around 0.5–2.5% usually reads naturally; much higher looks like keyword stuffing.
Does readability affect SEO?
Indirectly. Clear writing keeps readers on the page and answers the search better, which helps rankings.