SEO Score
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Scores your article 0–100 across readability, keyword density, heading structure, and sentence quality. Get specific improvement suggestions before you publish.
Solo Plan · $3.99/moAn article SEO scorer is a content analysis tool that evaluates your written content across multiple SEO-relevant dimensions and produces a single 0–100 score. Instead of publishing and waiting weeks for Google Analytics to tell you whether your content performed, an SEO scorer gives you actionable feedback before you hit publish — so you can fix the issues that would otherwise cost you rankings.
Our article SEO scorer evaluates three core dimensions: readability (how easy your content is to read), keyword usage (how naturally and frequently your target keyword appears), and content structure (whether the article is long enough and well-organized to rank for competitive queries). Each dimension receives its own sub-score, and the overall score combines them into a single actionable metric.
The readability component uses the Flesch Reading Ease formula to assess how accessible your content is. Google values accessible content because it correlates with higher dwell time and lower bounce rate — both engagement signals that influence rankings. A Flesch score of 60+ earns full marks in this component. Below 60, the readability contribution decreases proportionally.
The keyword component analyzes whether your target keyword appears in the content and whether the density falls within the optimal range. The ideal keyword density for most content is 0.5%–2.5%. Too low means Google may not understand what the page is about. Too high risks triggering spam filters and creates awkward, unnatural prose that damages user experience. The scorer also checks whether your keyword appears at the start of the article — early keyword placement is a positive signal.
The structure component evaluates article length and organization. Content under 300 words is typically too thin to rank for anything competitive. Content over 800 words signals depth and comprehensive coverage. Over 1,500 words earns maximum structure points. The reasoning: Google consistently rewards content that thoroughly covers a topic, and longer content has more opportunity to answer the full range of related questions around a keyword.
The traditional content workflow is: write → publish → wait → analyze → regret → rewrite. The SEO scorer short-circuits this cycle. By identifying readability problems, keyword gaps, and structure issues before publishing, you avoid the most common reasons content fails to rank.
Consider the compound effect: a piece that scores 45 out of 100 on your SEO scorer has identifiable problems in at least two of the three scoring dimensions. These problems — thin content, poor readability, or absent keyword targeting — are precisely the factors Google's quality assessment systems are designed to detect and rank accordingly.
A five-minute review with the SEO scorer before publishing can prevent months of underperformance. And for content teams producing multiple articles per week, the SEO score becomes a quality gate that standardizes output across different writers.
| Score | Assessment | Typical Issues |
|---|---|---|
| 80–100 | Excellent — ready to publish | Minor refinements possible |
| 65–79 | Good — publish with minor fixes | One dimension slightly under target |
| 50–64 | Fair — needs improvement | Two dimensions below target |
| 35–49 | Poor — significant revision needed | Content too short, low readability, or missing keyword |
| 0–34 | Very poor — major rework required | Multiple fundamental issues |
Thin content — articles under 500 words — rarely ranks for competitive keywords. Google's quality guidelines explicitly mention that low-effort, short content is a signal of low quality. The minimum viable length for a blog post targeting a competitive keyword is typically 800–1,200 words. For highly competitive topics, 2,000+ words is common among top-ranking results.
If your target keyword doesn't appear in the article (or appears only once in a 2,000-word piece), Google may not recognize the content as relevant to that query. While keyword stuffing is correctly penalized, natural keyword usage throughout the content is still important. Include your primary keyword in the first paragraph, in at least one subheading, and several times throughout the body.
An article with a Flesch score of 35 is technically written for a college-educated specialist audience. For most blog topics, this is far too dense. Long sentences, complex vocabulary, and passive voice all combine to lower readability and increase bounce rate — which feeds back as a negative ranking signal.
Writing a generic article "about" a topic without specifying a target keyword produces content without a clear relevance signal. Every piece of content should target a specific keyword or query — the more specific, the better. Our scorer asks for your target keyword before calculating, ensuring the analysis is relevant to your actual goal.
AI content generation tools can produce large volumes of text quickly, but they don't guarantee SEO performance. In fact, AI-generated content often underperforms on keyword usage scores (because AI tends toward broad language rather than specific keyword targeting) and on readability (because AI-generated prose often runs long and complex).
Running AI-generated content through an SEO scorer before publishing is an essential quality control step. The scorer identifies the specific dimensions where AI content typically falls short and gives you targeted guidance on how to improve it before it goes live.
Target to aim for: Before publishing any blog post, aim for a minimum SEO score of 65. This indicates your content is broadly on track across readability, keyword usage, and structure. A score of 80+ means the article is well-optimized and ready to compete for its target keyword.
Aim for 65 or above before publishing. Scores above 80 indicate well-optimized content. Between 50 and 65, there's one specific dimension pulling the score down — identify which one and fix it. Below 50 means the content needs significant work in multiple areas before it's ready to compete in search.
The optimal range is 0.5%–2.5% for most content. For a 1,000-word article, that means your primary keyword should appear 5–25 times. Aim for the lower end of this range and focus on natural usage — include the keyword in your title, first paragraph, at least one H2, and throughout the body where it fits naturally.
Length itself isn't a direct ranking factor — but depth and comprehensiveness are. Longer articles rank better on average because they have more opportunity to comprehensively cover a topic, answer related questions, and earn links. A well-written 800-word article will outrank a padded, low-quality 3,000-word article. Aim for the length that genuinely covers your topic thoroughly.
Yes. The SEO scorer works on any text, regardless of origin. It's particularly useful for evaluating AI-generated content, guest posts, or outsourced writing before publishing, giving you a standardized quality baseline.
If you're refreshing old content — which is one of the highest-ROI SEO activities — re-score after each revision to track improvement. For evergreen articles that rank but have declining traffic, run them through the scorer and compare against current top-ranking content for the same keyword to identify gaps.