Free Broken Link Checker

Broken Links: The Silent SEO Killer

Broken links are one of the most common and most overlooked technical SEO problems. Every 404 error on your site represents a dead end for both users and search engines — a page that was supposed to provide value but instead delivers frustration. For startups, where every visitor is precious and domain authority is still building, broken links drain your SEO equity and damage user trust.

How Broken Links Hurt Your SEO

Wasted Crawl Budget — Search engines allocate a limited number of pages they'll crawl on your site during each visit. Every broken link they encounter is a wasted crawl opportunity — time spent discovering a dead page instead of indexing your valuable content. For smaller sites with lower authority, crawl budget is especially precious.

Lost Link Equity — When external sites link to a page on your site that returns a 404, the ranking power (link equity) those backlinks provide is effectively lost. If a high-authority blog linked to your product page and that URL breaks during a redesign, you've lost a valuable SEO asset that may have taken months to earn.

User Experience Degradation — Users who click a broken link are likely to leave your site entirely. High bounce rates from broken pages send negative engagement signals to search engines, potentially affecting rankings across your entire domain.

Broken Internal Links — Internal links that point to non-existent pages disrupt your site's information architecture. Search engines use internal links to discover and understand the relationship between your pages. Broken internal links create dead ends in this architecture.

Common Causes of Broken Links

Startups are particularly prone to broken links because of rapid iteration. URL structure changes during redesigns, deleted or unpublished content without proper redirects, third-party integrations that change their URLs, typos in manually entered links, and content management migrations all create broken links. External links also break regularly as other websites reorganize, sunset products, or change domains.

Single Page vs. Sitemap Scanning

This tool supports two scanning modes. Single page mode extracts all links from one URL and checks each for broken responses — ideal for auditing a specific landing page or blog post. Sitemap mode parses your sitemap.xml, checks every listed URL, and optionally crawls each page's links — providing a comprehensive site-wide audit.

Using This Tool

Enter a page URL or sitemap.xml URL, and the tool scans all discovered links for HTTP status errors (4xx client errors, 5xx server errors, timeouts). Results are displayed in a filterable table showing the broken URL, its HTTP status, the page where the link was found, and the anchor text used. Download a CSV report to share with your development team for remediation. Create a free Pro Launch account to access this tool and keep your startup's link health in check.

Frequently Asked Questions

Free Broken Link Checker — broken link checker | Pro Launch