Paste your URL, get an instant 0-100 SEO score, and see exactly what to fix. Analyzes title tags, meta descriptions, headings, images, links, schema markup, and technical SEO — completely free.
Title Tag
Length, keyword placement, uniqueness
Meta Description
Length, relevance, call-to-action
Heading Structure
H1-H6 hierarchy and organization
Content Quality
Word count and content depth
Image Optimization
Alt text, dimensions, accessibility
Link Structure
Internal and external link analysis
Technical SEO
Viewport, canonical, robots, charset
Social & Schema
Open Graph, Twitter Cards, JSON-LD
The most comprehensive free on-page SEO checker tool available online. Enter any URL to check on-page SEO and get an instant 0-100 score across 8 critical ranking factors: title tag optimization, meta description quality, heading structure (H1-H6 hierarchy), content depth and word count, image alt text and dimensions, internal and external link structure, technical SEO (viewport, canonical, robots, charset), and social/schema markup (Open Graph, Twitter Cards, JSON-LD structured data). Get a Google SERP preview, heading hierarchy map, and specific fix-it recommendations for every issue. Use this on-page SEO analysis tool to check your own website or analyze competitors. Perfect for bloggers, content marketers, SEO professionals, freelancers, and small business owners who want to run a quick on-page SEO check before publishing. Also supports pasting raw HTML to test on-page optimization before going live. Once you've identified title tag issues, use our [Title Tag Optimizer](/tools/title-tag-optimizer) to craft the perfect title, or preview how your page looks in Google with our [SERP Preview Tool](/tools/serp-preview-tool). For meta description improvements, our [Meta Description Generator](/tools/meta-description-generator) can help you write click-worthy descriptions. No signup required, no usage limits, completely free. Works on any publicly accessible URL.
50-60 characters, primary keyword near the start, unique per page. This is the single most important on-page SEO element.
150-160 characters, includes target keywords naturally, compelling call to action. Directly affects click-through rate in search results.
One H1 per page matching the topic, logical H2-H6 hierarchy, keywords in subheadings. Helps Google understand content organization.
Minimum 300 words for thin pages, 1500+ for competitive terms. Comprehensive coverage of the topic with original insights beats thin content every time.
Descriptive alt text on every image, compressed file sizes, explicit width and height attributes to prevent layout shift.
Link to related pages on your site with descriptive anchor text. Helps Google discover pages and understand site structure.
Viewport meta tag for mobile, canonical URL to prevent duplicates, valid robots directives, proper charset declaration.
JSON-LD structured data (FAQ, HowTo, Product, Article) enables rich snippets in search results, boosting click-through rates.
Paste any webpage URL or switch to the HTML tab to analyze raw markup before publishing.
Get an overall 0-100 score with a breakdown across 8 ranking factors. Each factor shows pass, warning, or fail.
Start with red items (score below 60) as these have the biggest impact on rankings. Then tackle warnings.
After making fixes, run the checker again to verify improvements and catch any new issues.
| Score Range | Rating | What It Means |
|---|---|---|
| 90 – 100 | Excellent | Page is well-optimized. Minor polish may still help but no critical issues remain. |
| 80 – 89 | Good | Solid SEO foundation with a few areas for improvement. Address warnings to push higher. |
| 60 – 79 | Needs Work | Several optimization gaps. These pages are losing potential traffic to better-optimized competitors. |
| 40 – 59 | Poor | Significant SEO problems. The page is unlikely to rank well without addressing these issues. |
| 0 – 39 | Critical | Major on-page issues. The page may not be indexed at all or is competing at a severe disadvantage. |
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