How Do I Find and Fix Broken Links (404 Errors)? The Step-by-Step Guide for Marketers and Agencies — SEOtoolbox.io

How Do I Find and Fix Broken Links (404 Errors)? The Step-by-Step Guide for Marketers and Agencies

by Samuel Sylvander·Sep 10, 2025

Broken links, often resulting in 404 errors, do more than frustrate website visitors—they harm your site’s credibility, hinder the user experience, and can negatively impact your SEO rankings. Search engines view a site riddled with broken links as poorly maintained, leading to lower rankings and lost organic traffic.

Useful tools mentioned in this article

Website Audit
Automatically crawl your site for on-page issues, get a health score with a 12-month trend, and turn every finding into a prioritised task.
Learn more
Client Reporting Tool
Combine SEO results with paid and social data from every marketing platform into one automated, scheduled, on-brand report for each client.
Learn more

What Is a 404 Error?

A 404 error means that a page could not be found on your website. This typically occurs when a page has been deleted, moved, or its URL has changed without proper redirection. Broken links are both an inconvenience for users and a signal to search engines that your content may be outdated or unreliable.

How to Find Broken Links with the Website Audit Tool

The easiest way to keep your website healthy is to regularly scan for broken links. Website Audit Tool from SEOtoolbox.io offers a straightforward and comprehensive solution for this. Here’s how it works:

To get started, simply enter your website URL into the tool and let it scan. Within minutes, you’ll have a clear list of all broken links, ready for action.

Fixing 404 Errors: A Simple Workflow

Once the Website Audit Tool has found broken links, follow these steps to fix them efficiently:

1. Review the Audit Report

Open your audit report and locate the section listing all broken links. Each entry will show both the source (where the link is on your site) and the target (the destination that returns the 404 error).

2. Analyze the Context

3. Implement Redirects

For important pages that have moved, set up a 301 redirect from the old URL to the new one. This ensures that both users and search engines are forwarded seamlessly to the correct content without losing any existing link authority.

4. Re-Audit and Monitor

After updating or removing broken links, rerun the Website Audit Tool to confirm that all 404 errors have been resolved. With regular audits scheduled, you’ll be alerted to future issues before they affect your audience or your SEO.

Streamline the Fixing Process with Integrations and Team Management

For agencies and marketing teams, managing broken links can be a collaborative effort. The following integrations and features are invaluable:

With clear task assignment and collaboration tools, agencies can handle broken links for many clients at scale—improving productivity and ensuring fast resolution.

Reporting and Proving Your Progress

To show stakeholders what’s been fixed or to share results with clients, the Client Reporting Tool automatically compiles audit results into professional, easy-to-understand reports. Share progress on broken links, site health, and more to demonstrate real value and maintain trust.

Key Takeaways

Ready to Eliminate Broken Links?

Keep your site (and your clients’ sites) error-free and visible in search. Sign up for SEOtoolbox.io to automate broken link audits, manage fixes, and provide your team or clients with top-level SEO performance—no extra hassle required.