Welcome to Domain Age Checker
Free SEO Tools for Better Rankings
Analyze your website, optimize for Google, and rank higher. All our tools are completely free—no signup required.
- ✓ 100% free tools
- ✓ No cost, ever
- ✓ Client-side, private
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Our Tools
Complete SEO Toolkit for Success
Use 12 free SEO tools to analyze on-page SEO, content quality, mobile friendliness, site speed, sitemaps, and more. No signup required.
On-Page SEO Analyzer
Analyze your page title, meta description, heading tags, and keyword density. Get a complete SEO score and actionable recommendations to optimize your on-page content.
- Title: 52 chars
- Description: 145 chars
- H1 Tags: 1 found
- Keyword: 1.5% density
- Readability: Good
Content Quality Checker
Check your content’s readability, grade level, and quality. Get Flesch Reading Ease scores, Flesch-Kincaid grade levels, and passive voice analysis for better engagement.
- Flesch Reading Ease (0-100)
- Flesch-Kincaid Grade Level
- Passive voice detection
- Sentence/paragraph analysis
- Content quality score
Mobile SEO Checker
Test your website’s mobile friendliness for Google mobile-first indexing. Check viewport settings, font sizes, tap targets, and responsive design compliance.
- Viewport meta tag check
- Font size validation (16px+)
- Tap target size (44x44px)
- Responsive design test
- Mobile usability score
Heading Structure Analyzer
Check your page’s H1 to H6 heading hierarchy for a proper SEO structure. Find missing H1 tags, skipped heading levels, and get suggestions to build a search friendly outline.
- H1 to H6 hierarchy mapping
- Missing heading detection
- Skipped level warnings
- Outline visualization
- SEO structure score
Keyword Density Checker
Find out how often your target keywords appear across your content. Spot over-optimization or thin keyword usage and balance density for natural, search friendly copy.
- Single and multi-word keyword tracking
- Density percentage breakdown
- Keyword frequency count
- Over-optimization alerts
- Exportable keyword report
Free Sitemap Checker
Validate your XML sitemap for errors, broken links, and missing pages. Make sure search engines can discover and crawl every important page on your site.
- XML sitemap validation
- Broken URL detection
- Missing page alerts
- Sitemap format check
- Crawlability summary
Free Robots.txt Checker
Review your robots.txt file to confirm search engines can crawl the right pages. Catch accidental blocks that keep Google from indexing your content.
- Syntax validation
- Disallow rule detection
- Sitemap reference check
- User-agent breakdown
- Crawl access summary
Duplicate Content Checker
Scan your pages for duplicate or near-duplicate content that can hurt your rankings. Compare text blocks and get a uniqueness score before you publish.
- Text similarity comparison
- Duplicate paragraph detection
- Uniqueness percentage
- Internal duplication check
- Plagiarism-style report
Free Website Speed Tester
Measure your page load time and Core Web Vitals to see how fast your site really is. Get clear suggestions to speed up load times and improve user experience.
- Page load time
- Core Web Vitals check
- Load speed grade
- Performance bottleneck list
- Speed improvement tips
Keyword Count Checker
Count exactly how many times your target keywords and phrases appear across your content. See raw occurrence counts alongside word and character totals in one clean report.
- Exact keyword occurrence count
- Word & character count
- Multi-word phrase tracking
- Track multiple keywords at once
- Instant, real-time counting
SERP Snippet Preview Tool
Preview exactly how your page title and meta description will appear in Google’s search results, on both desktop and mobile, before you hit publish.
- Live Google SERP preview
- Desktop & mobile views
- Title pixel-width check
- Description truncation warning
- Rich snippet preview
Unicode Text Generator
Generate stylish Unicode text — bold, italic, cursive, and more — for social bios, headings, and captions that stand out. No special fonts needed, just copy and paste.
- Bold & italic Unicode styles
- Cursive & fancy fonts
- Copy-paste ready output
- Social media safe characters
- 20+ style variations