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Backlink Checker

404 SOFTWARE LABS SL.
ExtensionDeveloper Tools16 users
Item media 1 (screenshot) for Backlink Checker

Overview

Free backlink checker tool to verify links from freelancer reports. Upload CSV, PDF, or XLS and validate backlinks instantly.

Hired a freelancer to build backlinks? Now verify they actually did the work. This free backlink checker tool validates links from any report format instantly. Drop your freelancer's backlink report into the extension. PDF, CSV, XLS, or paste URLs directly. Click verify. Get results in seconds. It's the easiest way to check if your backlinks exist and work correctly. 🎯 KEY FEATURES ✅ Multiple Format Support - Upload backlink reports in PDF, CSV, or XLS format. Paste URLs directly or link to Google Sheets. ✅ Bulk Backlink Checker - Verify dozens of links at once. No need to check each URL manually. ✅ Dofollow Detection - See which links pass SEO value and which are nofollow. Essential for evaluating link building work. ✅ Error Identification - Spot broken links, 403 errors, blocked pages, and missing links immediately. ✅ Status Overview - Clear breakdown showing OK, Warning, and Error counts with percentages. ✅ Export Results - Download your verification report as CSV or PDF for records and client communication. 🔍 WHY YOU NEED A BACKLINK CHECKER When you pay for link building services, you're trusting someone to deliver real results. But how do you know the backlinks actually exist? Manual verification takes hours. Opening each page, searching for your link, checking if it's dofollow—it's tedious work. A backlink checker tool automates this process. Upload the report you received, and the tool visits each page to verify your link is present and properly configured. This matters because: 🔹 Freelancers sometimes submit fake reports 🔹 Links get removed after initial placement 🔹 Pages go offline or return errors 🔹 Some links are nofollow when you paid for dofollow 🔹 Bad backlinks from spam sites hurt your rankings 💡 HOW IT WORKS Open the extension from your browser toolbar. You'll see a simple interface with two options: drop a file or paste URLs. For file uploads, drag your backlink report directly into the drop zone. The tool accepts PDF files, CSV spreadsheets, and XLS documents. It automatically extracts URLs from your report. Prefer to paste directly? Copy your list of URLs into the text area. You can also link to a Google Sheets document containing your backlink data. Click "Verify Links" and watch the results populate. Each backlink shows its status: OK means the link exists and works. Warning indicates potential issues like nofollow status. Error means the link wasn't found or the page returned an error. 📊 UNDERSTANDING YOUR RESULTS The backlink checker categorizes each link clearly: ✓ OK (Green) - Link found, page accessible, properly configured ⚠ Warning (Yellow) - Link exists but has issues (nofollow, redirects, etc.) ✗ Error (Red) - Link not found, page blocked, HTTP errors You'll see the source page URL, your target URL, link status, and follow type. Filter results by status to focus on problems that need attention. 🚀 PERFECT FOR This online backlink checker serves anyone who buys link building services: 🔹 Website owners verifying freelancer deliverables 🔹 SEO agencies auditing contractor work 🔹 Marketing teams validating campaign results 🔹 Business owners protecting their SEO investment Don't trust reports blindly. Verify backlinks before paying for completed work. ✨ WHY THIS BACKLINK CHECKER TOOL Unlike expensive SEO tools that require subscriptions, this seo backlink checker is free to use. No account required for basic verification. The browser extension means instant access—no separate website backlink checker to visit. Most backlink checker tools focus on discovering links. This one focuses on verification. It answers a simple question: did my freelancer actually create the backlinks they reported? Simple interface. Fast results. Clear answers. 📈 PROTECT YOUR SEO INVESTMENT Link building is expensive. Whether you're paying per link or monthly retainers, you deserve to know the work was done correctly. Bad backlinks waste money. Missing backlinks waste more. Use this free backlink checker tool before approving freelancer invoices. Catch fake reports. Identify removed links. Works as a dofollow backlink checker to verify link attributes. Keep your contractors accountable. Install the extension now and start verifying your backlinks. Your SEO budget will thank you.

Details

  • Version
    0.3.0
  • Updated
    January 5, 2026
  • Size
    85.06KiB
  • Languages
    52 languages
  • Developer
    404 SOFTWARE LABS SL.
    CALLE SERRANIA DEL TURIA, 4 - BJ 2 GANDIA, Valencia 46730 ES
    Website
    Email
    info@404sl.es
    Phone
    +34 658 23 66 43
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    471886666

Privacy

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

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