How is the readability score calculated?

The score uses web-reading heuristics: average sentence length, share of long sentences, word length, paragraph density, and content volume.

Is keyword density an SEO target?

No. It is only a diagnostic signal to spot excessive repetition or confirm that an important phrase is actually present.

Yes. The option to ignore HTML tags analyses visible text rather than raw code.

Tools · Content

Readability score analyzer

Assess the clarity of web copy: sentence and paragraph length, vocabulary, reading time, lexical repetition, and target-keyword density. The score remains indicative and is designed to highlight passages worth revising.

Analyse a text or HTML excerpt

Text to analyse

Paste a raw text, page description, article section, or HTML excerpt here for a quick diagnosis.

Input area

0 caractères · 0 mots

Target keyword or phrase (optional)

Measures occurrences and an indicative density. It is not an SEO target to maximise.

Occurrences / density

— · —

Analysis options

Ignore HTML tags Analyse the visible content rather than the raw code. Analyse in real time Update the diagnosis after each change. Show long sentences List up to the first 10 sentences above the threshold.

Long sentence threshold Number of words from which a sentence becomes harder to scan.

words

Quick summary

The score remains indicative and is designed for web reading in English and French.

Indicative overall score

0/100

À analyser

Collez un texte pour obtenir un diagnostic rapide et indicatif.

Words

Sentences

Paragraphs

Avg. words / sentence

0,0

Reading time

0 min

Detailed diagnosis

Find strengths, areas to improve, and specific elements to rework in the text.

Strengths

Areas to improve

Priority recommendations

Detailed statistics

Characters

Avg. characters / word

0,0

Long sentences

Long words (10+ characters)

Longest paragraph

0 mot

Most frequent significant words

This list helps identify lexical repetition. Common function words are intentionally ignored.

No significant frequent word to display.

Long sentences

Seuil actuel : 25 mots.

La liste est limitée aux 10 premières occurrences lorsqu’il y en a davantage.

How should you read the score?

80 to 100

Very readable

The text is clear, airy enough, and generally easy to read on screen.

60 to 79

Readable

The structure works well, though a few simplifications could still improve comfort.

40 to 59

Needs simplification

The content is still usable, but several passages need clearer wording.

0 to 39

Hard to read

The text is dense or too complex for quick web reading.

The score remains indicative. It relies on simple heuristics: sentence length, paragraph density, the share of long words, and the overall size of the text.

Usage tips

Shorten sentences

Shorter sentences help a main idea land faster, especially on mobile.

Air out paragraphs

A paragraph that is too dense makes reading harder even when the content is relevant.

Choose clear vocabulary

A simple and precise word is often more effective than needlessly heavy technical wording.

Use headings and lists

Subheadings and lists make key information easier to spot quickly.

Avoid very long blocks

A very compact text feels harder even when the substance is good.

Adapt the level to the audience

The broader the audience, the more deliberately simple the wording should be.

Continue the optimisation

You can then use the other tools on the site to improve snippet clarity, run a broader page audit, or explore new optimisation ideas.

Back to the Toolbox View the Google SERP Simulator View Audit Express Web Contact me