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免费可读性检查器 & Reading Level Tester

即时检查任意文本或网站的可读性评分。获取您的 Flesch阅读易读性分数, reading grade level, SEO readability checks, and sentence-by-sentence analysis — free, online, no account needed.

📊 6种可读性公式 🎓 美国年级水平 🔍 搜索引擎优化可读性检查 🌐 从任意URL获取 🖊 句子高亮器 ⏱ 阅读时间
0 词

结果随输入即时更新。需要至少100词以获得准确评分。

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在上方粘贴文本以开始

您的可读性评分、年级水平和SEO检查结果随输入即时显示。

可读性的重要性

What Is a Readability Score — and Why Does It Affect Your SEO?

一个 可读性评分 衡量您的写作易于阅读和理解的程度。它考虑句子长度、词汇复杂度、音节数和段落结构等因素,给出一个对应于美国学校年级水平的数字分数。

Google's goal is to surface content that answers user questions clearly and efficiently. Content that is difficult to read has higher bounce rates, lower dwell time, and fewer social shares — all signals Google factors into rankings. Research has found that content with good readability scores consistently outperforms complex content on the same topic.

我们的免费 在线可读性检查工具 calculates six different formulas and gives you the same SEO readability checks used by leading SEO tools — so you can optimise your content before publishing.

90–100
非常容易 5年级
80–90
简单 6年级
70–80
比较容易 7年级
60–70
标准 8th–9th Grade
50–60
较困难 10th–12th Grade
30–50
困难 大学水平
0–30
非常令人困惑 大学毕业生

Flesch Reading Ease score scale — aim for 60–70 for most web content.

阅读水平检查器指南

我们的工具使用的6种可读性公式

我们的自动可读性检查器同时计算所有六种主要阅读水平公式。以下是每种公式的测量内容。

弗莱奇阅读难易度

Most widely used. Scores 0–100 (higher = easier). The formula used by Grammarly and most SEO readability tools.

Formula: 206.835 − 1.015(words/sentences) − 84.6(syllables/words)

Flesch-Kincaid年级水平

Converts Flesch to a US school grade level. A score of 8 means the text is readable by an 8th-grader. Most web content should target grade 6–8.

Formula: 0.39(words/sentences) + 11.8(syllables/words) − 15.59

Gunning Fog指数

估算理解文本所需的教育年限。主要关注多音节词(3个及以上音节)。目标:低于12。

Formula: 0.4 × (words/sentences + 100 × complex_words/words)

SMOG指数

简单测量行话。对医疗和医学内容非常准确。基于计算30个句子中的多音节词。

Formula: 3 + √(polysyllables × 30/sentences)

Coleman-Liau指数

Uses character counts rather than syllable counts — making it more consistent for digital text. Outputs a US grade level.

Formula: 0.0588L − 0.296S − 15.8 (L = letters/100 words, S = sentences/100 words)

自动可读性指数

使用每词字符数和每句词数。专为实时可读性监控设计。产生美国年级水平估计。

Formula: 4.71(chars/words) + 0.5(words/sentences) − 21.43
SEO可读性指南

如何提高您的SEO可读性得分

我们的 SEO可读性检查器 runs comprehensive checks to score your content. Getting all green bullets doesn't guarantee rankings — but it significantly improves user experience, time on page, and the likelihood that readers will share your content.

缩短句子

Google data shows that the average user reads at a 7th–8th grade level. Keep average sentence length under 20 words. Break long sentences at conjunctions (and, but, because) or split them into two separate sentences.

减少被动语态

被动语态使文本难以理解("球被约翰踢了" vs "约翰踢了球")。将被动语态控制在句子总数的10%以内。我们的检查器会高亮显示被动结构,方便您改写。

使用过渡词

Words like "however," "therefore," "additionally," and "as a result" help readers follow your argument. SEO best practice recommends at least 30% of sentences include a transition word or phrase.

保持段落简短

Online readers skim. Paragraphs longer than 150 words create visual walls that drive users away. Aim for 2–4 sentences per paragraph maximum.

使用小标题

Subheadings (H2, H3) help readers navigate long content and improve scannability. Sections longer than 300 words without a subheading should be broken up.

Readability Checkers: What's the Difference?

Many users search for readability checkers online. Different tools measure readability, but they use different approaches — and few are free for all features.

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Grammarly可读性分数

Grammarly uses the Flesch Reading Ease formula and displays a score from 0–100 on Premium plans. It focuses on writing clarity within documents but doesn't check SEO-specific readability factors like subheading distribution or transition words.

Requires Grammarly Premium — not free for readability.
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SkySEOManager SEO Readability

SkySEOManager includes readability analysis as part of its complete SEO toolkit. Unlike plugin-only solutions, our free online checker works on any URL — not just your own WordPress site.

Free online tool — works on any URL without installation.

SiteSkyline可读性检查器(本工具)

Free, instant, no account. Checks 6 readability formulas + 5 SEO checks + sentence highlighter. Works on pasted text or any live URL. All calculations run client-side — your text is never sent anywhere.

下一步

良好的可读性吸引读者。好的SEO元数据则能先发制人。

您已经检查了内容的可读性。现在确保您的标题标签、元描述和图片替代文本也已优化。 SkySEOManager 专业版 借助Gemini AI,在几分钟内为您的WordPress网站批量生成所有这些内容。

11,000+
活跃安装量
Gemini AI
驱动内容
批量编辑
500+页面
14天
退款

常见问题解答

对于SEO来说,什么才是好的可读性分数?
For most web content, a Flesch Reading Ease score of 60–70 is ideal — this corresponds to an 8th–9th grade reading level and is accessible to the majority of internet users. Blog posts and news articles often target 65–75. Technical documentation can go lower (40–60). Academic papers typically score 0–30. The key is matching your score to your target audience's education level. Our readability score checker tells you exactly what grade level your content targets.
什么是Flesch阅读易读性分数,它是如何计算的?
The Flesch Reading Ease score is the most widely used readability formula, developed by Rudolf Flesch in 1948. It scores text on a scale of 0–100 using the formula: 206.835 − 1.015(words÷sentences) − 84.6(syllables÷words). Higher scores mean easier reading. Grammarly and most readability tools use this formula as their primary metric. Our free Flesch reading ease checker calculates this score instantly.
Grammarly可读性分数如何工作?
Grammarly's readability score is based on the Flesch Reading Ease formula and displays a score from 0–100. It's only available on Grammarly Premium plans — the free version doesn't show readability. Our free readability checker provides the same Flesch score (plus 5 additional formulas) at no cost, works on any text or URL, and doesn't require an account.
How does an SEO readability checker score work?
Most SEO readability tools use the Flesch Reading Ease formula for an overall score, plus additional content checks: sentence length, paragraph length, passive voice percentage, transition word usage, consecutive sentence starts, subheading distribution, and text length. Our SEO readability checker online runs these checks on any text — not just within WordPress.
我可以检查网站URL的阅读水平吗?
Yes — switch to "Check Website URL" mode above, paste any public URL, and we'll fetch the page and extract the main content for analysis. We strip navigation, headers, footers, and sidebars to focus on the actual content text. This makes our tool an excellent website readability checker and website readability test tool for analyzing competitor content or any live page.
为什么可读性对SEO很重要?
Google's ranking systems aim to surface content that is clear, accurate, and useful. Content with poor readability tends to have higher bounce rates and lower dwell time — both signals Google interprets as a sign the content didn't satisfy the user's query. Research shows that content written at an 8th–9th grade level consistently achieves higher engagement metrics than academic-level content on the same topic. Better engagement signals → better rankings.

Check Your Readability Score Now — Free

在上面粘贴任何文本即可获得即时结果。无字数限制,无需注册,无需信用卡。最好的免费在线可读性检查器。