Blog SEO Checker
Paste your blog content and get an instant SEO score with actionable fixes. Free, no signup needed.
What is a blog SEO checker?
A blog SEO checker is a tool that analyzes your blog content against search engine optimization best practices and gives you a score with actionable recommendations. It evaluates factors like word count, keyword usage, heading structure, readability, and internal linking to help your content rank higher on Google.
How to use the blog SEO checker
- Enter your target keyword in the keyword field (recommended for accurate scoring)
- Paste your blog content or markdown into the content area
- Click "Check SEO Score" to analyze your content
- Review each check — green means passing, red means needs improvement
- Fix the failing checks and re-analyze until your score is 80+
SEO scoring criteria explained
| Check | What It Measures | Why It Matters |
|---|---|---|
| Word Count | Total words (300+ to pass) | Longer content ranks better for competitive keywords |
| Keyword Present | Target keyword appears in content | Google needs to know what your page is about |
| Keyword Density | 0.5–3% keyword frequency | Too low = unclear topic; too high = looks spammy |
| Heading Structure | At least 2 H2 headings | Headings help Google understand content hierarchy |
| Readability | Under 20 words per sentence | Easier-to-read content has lower bounce rates |
| First Paragraph | Keyword in introduction | Confirms topic relevance immediately |
What is a good SEO score?
A score of 80 or above means your content is well-optimized and ready to publish. Scores between 50–79 indicate room for improvement — focus on the failing checks. Below 50 means significant issues that will likely prevent ranking. Most published blog posts that rank on page 1 of Google score 75+ on comprehensive SEO checks.
Frequently Asked Questions
How accurate is this SEO checker?
This tool checks the most impactful on-page SEO factors that directly affect ranking: keyword usage, content depth, heading structure, readability, and internal links. It does not check off-page factors like backlinks or domain authority, which also influence rankings but are not content-related.
What keyword density should I target?
Aim for 0.5–2% keyword density. This means using your target keyword 5–20 times in a 1,000-word article. Modern SEO also rewards semantic variations and related terms rather than exact-match repetition.
Does this tool check meta titles and descriptions?
This checker focuses on body content analysis. For meta title and description optimization, use our free Meta Description Generator andBlog Title Generator.