Readability Analyzer
Flesch, Gunning Fog, and SMOG scores plus per-paragraph signals.
Paste text or fetch a URL
Scores update as you type. All scoring happens in your browser.
Flesch Reading Ease
Higher is easier. Aim for 60–70 for general audiences.
Other grade-level scores
Counts
Start here · What does readability mean in SEO?
Readability is how easy your text is to understand. It covers sentence length, paragraph length, word complexity, and the rhythm of the page.
Search engines do not need every article to be written for a child, but users bounce when the copy feels heavy, vague, or hard to scan.
Use readability scores as feedback, not as a law. A technical page can be more complex, but it should still guide the reader clearly.
When to use this tool
- Before publishing
Run the draft before it goes live to catch long sentences, dense paragraphs, and sections that need clearer headings.
- Content refresh
Use it when an old page ranks but underperforms. Easier copy can improve engagement without changing the whole strategy.
- Writer coaching
Share paragraph-level signals with writers so feedback becomes specific instead of
make this simpler.
Examples
Walk through these with the form above — they are practice scenarios, not live data.
Beginner guide check
Try this
Paste a 1,000-word beginner article with several long paragraphs.
What to look for
Look for sections with high grade level and long average sentence length. Split or rewrite those first.
Product page copy
Try this
Paste your product description and FAQ copy together.
What to look for
If the score is hard to read, simplify benefits and move specifications into bullets or short answer blocks.
Short tutorial
Follow in order the first time you use the tool; later you can skip to the step you need.
- Step 1 - Paste the draft
Use the real page copy, not only the intro. Readability often falls apart in middle sections.
- Step 2 - Review score and hotspots
Start with the worst paragraphs. One dense block can make the whole page feel harder than it is.
- Step 3 - Rewrite one problem at a time
Shorten sentences, replace jargon, and add subheadings. Run again to confirm the page got easier to scan.
More detail
New here? Skim Start here first, then run one Examples scenario in the form above.
Readability Analyzer does one job: flesch, Gunning Fog, and SMOG scores plus per-paragraph signals. It lives under Content & Writing on SEOToolkits, where the beginner idea is simple: Content SEO is the practice of making a page useful, clear, and complete enough to satisfy a searcher.
FAQ
- What readability score should I aim for?
- For broad web content, a middle-school reading level is often comfortable. Expert pages can be higher if the structure is still clear.
- Do readability scores affect rankings directly?
- They are not a simple ranking switch. They matter because clear pages better satisfy users, earn links, and reduce confusion.
- Should I remove all technical terms?
- No. Keep necessary terms, then explain them. Precision and clarity should work together.
Related tools
Same workflow cluster on SEOToolkits — open another module without leaving context.
Sentence Complexity
Per-sentence complexity scoring with rewrite suggestions.
Paragraph Optimizer
Tighten paragraphs for scanability and topical density.
Jargon Simplifier
Rewrite expert-speak into accessible language without losing meaning.