On-Page SEO Checker
Check a page's meta description, H1 and headings, and how easy it is to read. Enter a URL or paste your text.
What it checks
The title and meta description (length and pixel width), the H1 and heading outline, word count, and readability: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau and ARI.
How to use the readability score
Most web pages do best around 60–70 Flesch Reading Ease (plain English, about grade 8). Shorter sentences and simpler words raise the score. Technical audiences can go lower.
Questions
Should a page have only one H1?
One clear H1 that matches the page topic is best practice. Google can handle more, but one H1 keeps the structure clear for readers and crawlers.
What is a good Flesch Reading Ease score?
60–70 is plain English and suits most audiences. Above 80 is very easy; below 50 is hard to read.
Is readability a ranking factor?
Not directly. But easy-to-read pages keep people reading, which helps the page do its job.