Mass URL Checker, Validate Thousands of URLs in Minutes

Built for large-scale URL validation. Check 10,000, 25,000, or even 100,000 URLs with proxy rotation and smart rate limiting that avoids false positives.

Checking 10,000 URLs or more? One job takes up to 100,000, and it runs in the cloud while you close the tab.

Try 15,000 URL checks on us →

URL Checking at Scale

Most URL checkers break down at scale. They run from a single IP, get rate-limited by target servers, and produce unreliable results. When you need to check thousands of URLs, you need infrastructure designed for mass validation, not a tool built for checking 50 links.

🌐 Proxy Rotation

Requests are distributed across multiple IP addresses to avoid triggering rate limits or IP bans on target servers. No more 429 errors ruining your results.

⚡ Parallel Processing

Our cloud infrastructure checks URLs in parallel across distributed servers. 100,000 URLs in minutes, not hours.

🎯 Zero False Positives

Playwright-based deep checking handles JavaScript-rendered pages. Smart retry logic distinguishes between genuinely broken URLs and temporary server issues.

Why Mass URL Checking Is Different

At small scale, URL checking is straightforward, send a request, check the status code. At mass scale, everything changes:

  • Rate Limits: Checking 1,000 URLs on the same domain will trigger 429 errors within seconds. Our checker limits to 20 requests per minute per domain.
  • IP Reputation: Mass requests from a single IP look like a bot attack. Proxy rotation makes requests appear natural.
  • False Negatives: Some sites use JavaScript to render content. A simple HTTP request sees an empty page and reports it as broken. Playwright catches these.
  • Timeouts: At scale, some servers respond slowly. Aggressive timeouts mark slow pages as broken. We use adaptive timeouts based on server response patterns.

💡 Scale matters: Checking 100,000 URLs at 20 requests per minute per domain with a single IP would take over 40 hours. Our distributed infrastructure with proxy rotation completes the same job in minutes.

Who Needs Mass URL Checking?

  • Enterprise SEO Teams: Large websites with tens of thousands of pages need regular link health checks
  • Digital Agencies: Managing dozens of client sites means checking URLs at scale across different domains
  • E-commerce Platforms: Product catalogs with thousands of pages need automated broken link detection
  • Knowledge Base Maintainers: Internal documentation with external references needs periodic mass validation
  • Site Migration Teams: Verify that every old URL redirects to the correct new page after a migration

Mass Checking vs. Desktop Tools

Desktop tools like Screaming Frog are powerful, but they hit a wall at scale:

  • Single IP: Desktop tools send all requests from your machine's IP, easy to block
  • RAM Limits: Large crawls consume gigabytes of memory and crash
  • Your Bandwidth: Mass checking ties up your internet connection for hours
  • Must Stay Running: Close your laptop and the job stops

Our cloud-based mass checker runs on distributed infrastructure. Upload your list, close your browser, and we'll email you when it's done.

Related Resources

Ready to Check URLs at Scale?

Your first month is on us: 15,000 URL checks. Scale up to 100,000 URLs with proxy rotation and reports that always complete.

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