Everything you need to find, fix, and monitor SEO issues in React, Vue, Next.js, and other JavaScript-heavy websites. No more guessing what Google sees.
We use actual Chrome to render your pages, executing JavaScript exactly like Googlebot does.
Every issue comes with plain-English explanations and copy-paste code fixes.
Side-by-side screenshots show what Google sees on desktop and mobile vs what users see.
Catch JavaScript errors that break your pages and hurt SEO—included free for all.
We use Puppeteer (headless Chrome) to render your pages exactly like Google does. Unlike traditional crawlers that only see raw HTML, we execute JavaScript and wait for your React, Vue, or Next.js app to fully render.
See exactly what Google sees on both desktop and mobile compared to what your users see. Side-by-side screenshots across all device types instantly reveal rendering differences or JavaScript failures hurting your rankings.
Our optimized crawler uses parallel processing, resource blocking, and sitemap discovery to scan your site efficiently. Get comprehensive results in 1-2 minutes.
Don't want to crawl your entire site? Paste specific URLs you want to scan. Perfect for testing landing pages, auditing after deployments, or re-checking problem pages.
Watch your scan progress in real-time with our Server-Sent Events streaming. See pages being analyzed, issues found, and estimated time remaining as it happens.
We detect a comprehensive range of SEO issues including missing titles, meta descriptions, H1 tags, Open Graph tags, Twitter cards, canonical URLs, structured data, performance issues, and more.
Automatically catch JavaScript errors that break your pages and hurt SEO. We detect uncaught exceptions, console errors, and failed network requests during every scan.
Discover orphan pages with zero internal links, identify poorly-linked content, and optimize your site structure for better crawlability and SEO performance.
Every issue comes with plain-English explanations that anyone can understand. Learn why it matters, get step-by-step fix instructions, and copy real code examples.
Check your Open Graph and Twitter Card tags to ensure your content looks great when shared on Facebook, LinkedIn, Twitter/X, and other social platforms.
Detect JSON-LD structured data on your pages. Get recommendations for implementing Schema.org markup to enable rich snippets in search results.
Find images missing alt text, which hurts both SEO and accessibility. We identify exactly which images need attention and provide best practices.
Set up automated scans to monitor your SEO. Pro users get weekly/monthly scans, Enterprise users unlock daily frequency for real-time monitoring.
Get email alerts when scheduled scans complete and receive weekly SEO digest summaries of all your monitored sites. Stay informed without checking dashboards.
Access your complete scan history and compare any two scans side-by-side. See what's improved, what's regressed, and track your SEO progress over time.
Compare screenshots between scans to see how your site changed visually over time. Catch layout regressions and rendering changes before they impact rankings.
Invite your team members to collaborate on SEO. Track team activity with built-in analytics, export team reports as PDF, and work together to fix issues.
Control who can do what with granular permissions. Viewers can see results, Members can run scans, Admins can manage the team.
Generate professional PDF reports perfect for clients, stakeholders, or your own records. Branded, comprehensive, and ready to share.
Export your scan data in CSV for spreadsheets or JSON for developers. Import into Google Sheets, Excel, or your own tools.
Integrate JSVisible into your workflow with our REST API. Trigger scans programmatically, retrieve results, and build custom integrations.
We catch everything that matters for JavaScript SEO, including JS errors and orphan pages
Built specifically for modern JavaScript frameworks and SSR/CSR apps
Every issue comes with plain-English explanations and ready-to-use code examples for your specific framework. No more Googling how to add meta tags in Next.js.
// app/page.js
export const metadata = {
title: "Your Page Title | Brand",
description: "A compelling description...",
openGraph: {
title: "Social Share Title",
description: "Social description...",
images: [{
url: "https://site.com/og.jpg",
width: 1200,
height: 630,
}],
},
twitter: {
card: "summary_large_image",
},
};Traditional SEO tools weren't built for JavaScript
| Feature | Traditional Tools | JSVisible |
|---|---|---|
| JavaScript Rendering | ❌ | ✅ |
| React/Vue/Next.js Support | ❌ Partial | ✅ Full |
| Client-Side Content | ❌ Misses | ✅ Sees All |
| Real Browser Engine | ❌ | ✅ Chrome |
| ELI5 Explanations | ❌ | ✅ All Tiers |
| Desktop & Mobile Googlebot Screenshots | ❌ | ✅ Pro+ |
| JavaScript Error Detection | ❌ | ✅ All Tiers |
| Internal Link Analysis | ❌ | ✅ All Tiers |
| Framework Code Examples | ❌ | ✅ |
| Results Speed | ⏱️ Minutes | ⚡ 1-2 Minutes |
| URL List Mode | ❌ | ✅ |
| Real-Time Progress | ❌ | ✅ |
Stop guessing if your JavaScript site is SEO-friendly. Get a comprehensive scan in 1-2 minutes—no credit card required.
✨ Free forever plan available • ✅ No credit card required • 🔒 Cancel anytime