Readability Checker for SEO Content

Check your blog posts, landing pages, and articles for readability. Search engines reward content that real people can actually read.

Words
Sentences
Avg Sentence
Read Time
Flesch Reading Ease
Target 60–70 for most web content. Higher scores keep readers on page longer.
Flesch-Kincaid Grade
Most high-performing blog content sits between Grade 6 and Grade 8.
Gunning Fog Index
Keep below 12 for general audiences. Complex content increases bounce rates.
SMOG Index
Grade level estimate. Requires 30+ sentences for accuracy.
Coleman-Liau Index
Character-based grade level. Consistent across different content types.
Automated Readability Index
Grade level based on characters and sentence length.

Breakdown

Paste your content above and click Analyze Text to see your readability scores.

Why Readability Matters for SEO

Google rewards readable content

Google's ranking systems evaluate user engagement signals like time on page, scroll depth, and bounce rate. Content that is easier to read keeps visitors engaged longer — which sends positive signals to search engines.

Match your audience's reading level

Most successful blog content targets a 6th–8th grade reading level — not because readers aren't intelligent, but because people skim online and prefer clear, direct writing. Matching your content to your audience reduces friction.

Featured snippets favor plain language

Google's featured snippets and AI Overviews tend to pull from content that clearly and directly answers questions. Concise sentences and simple vocabulary increase the likelihood your content gets selected.

SEO Readability Targets by Content Type

Blog posts & articles

Aim for a Flesch Reading Ease score of 60–70 and a Flesch-Kincaid Grade Level of 7–9. Keep average sentence length under 20 words. Use subheadings to break up long sections.

Landing pages & product copy

Landing pages benefit from even simpler writing — target a Flesch score of 70+ and Grade Level of 6–8. Short sentences and bullet points increase conversion rates and reduce cognitive load.

Technical & niche content

Technical content written for expert audiences can have a higher grade level. The key is consistency — your readability level should match what your target reader expects and is comfortable with.

How to Improve Readability for SEO

Shorten your sentences

Long sentences are the single biggest driver of high grade-level scores. Aim for an average of 15–18 words per sentence. Break any sentence over 25 words into two.

Replace complex words

Swap multi-syllable words for simpler alternatives where meaning allows. "Use" instead of "utilize." "Show" instead of "demonstrate." "Help" instead of "assistance." Simpler words are almost always clearer.

Use active voice

Active voice produces shorter, more direct sentences. "The tool analyzes your text" is clearer than "Your text is analyzed by the tool." Active voice naturally lowers your readability score.