How to Use a Free Broken Link Checker Tool (and Actually Fix What You Find)

How to Use a Free Broken Link Checker Tool (and Actually Fix What You Find)

Broken links are silently damaging your site right now, and most website owners don't find out until they're already losing rankings. A free broken link checker tool gives you a fast way to scan your pages, find URLs returning 404 errors or dead redirects, and fix them before search engines penalize you for a poor user experience. These tools exist in abundance — the harder part is knowing which one fits your situation and what to do with the results.

Why Broken Links Are a Bigger Problem Than You Think

I used to treat broken links as a cosmetic issue. A 404 here, a dead outbound link there — no big deal, right? Wrong. According to Ahrefs, crawl errors and broken internal links are among the top technical SEO issues found across millions of websites they've audited. Visitors who hit a dead page bounce immediately, and that bounce signal isn't invisible to Google.

Here's what actually happens when a page has multiple broken internal links: link equity — that flow of ranking power from one page to another — gets lost. You might have built a solid backlink profile for a cornerstone article, but if the internal links pointing to it are broken, some of that equity evaporates into nothing. That's not a theory. It's a structural problem that compounds over time, especially on sites that have been publishing content for years without a regular audit.

If your site is more than two years old, I'd bet there are at least a dozen broken links buried somewhere. Blog posts referencing old products, partner pages that have moved, or external resources that simply went offline.

The Best Free Broken Link Checker Tools (With Real Trade-offs)

Let me be honest about the free tier reality: most free broken link checker tools have crawl limits. That's not a dealbreaker — it just means you need to pick the right tool for your site size.

For most bloggers and small business sites, Screaming Frog's free version covers a surprising amount of ground. 500 URLs sounds limiting, but if you focus the crawl on a single category or subfolder, you can get granular results fast. I ran it on a client's recipe blog last year — 480 URLs crawled, 23 broken links found, 11 of which were broken internal links to a category page they'd restructured six months earlier.

Google Search Console is the one I'd never skip, even if you use another tool. It doesn't give you a full crawl on demand, but it flags 404 errors that Googlebot has already encountered. That's arguably more important than a theoretical crawl.

How to Actually Run a Broken Link Check (Step by Step)

Let's use Screaming Frog as the example since it's free, desktop-based, and gives you the clearest data output for beginners.

1. Download and install Screaming Frog SEO Spider (Windows or Mac).

2. Enter your URL in the search bar and hit Start. The free version will crawl up to 500 URLs automatically.

3. Filter by response code. Once the crawl finishes, click the Response Codes tab and filter for 4xx errors. These are your broken pages.

4. Check the Inlinks tab for each broken URL. This shows you exactly which pages are linking to the dead URL — that's where you need to go and fix the link.

5. Export the list as a CSV. This matters if you're handing the fix list to someone else or working through it over multiple sessions.

This works — but only under this condition: your site must be publicly accessible. If you're testing a staging environment behind a password, Screaming Frog will either fail the crawl or return misleading results.

For larger sites above 500 URLs, Ahrefs Webmaster Tools is the free option I'd lean on. You verify your site (same process as Search Console), then run a Site Audit. The crawl report will flag broken links, redirect chains, and even broken links on pages that no one is internally linking to — those forgotten zombie pages.

What to Do With the Results

Finding broken links is the easy part. This is where people get stuck.

You have three real options for each broken link you find:

• Update the link to point to the correct, working URL

• Remove the link entirely if the content it referenced is gone and no good replacement exists

• Set up a 301 redirect from the broken destination URL to a relevant working page (this applies to your own broken internal pages, not external sites)

For broken external links — links pointing from your site to someone else's dead page — the fastest fix is to either find an alternative source and update the anchor, or delete the reference. Don't just leave a hyperlink pointing nowhere. It makes you look like you stopped caring about your own content.

Here's a scenario that illustrates why speed matters. Imagine a 4-year-old review post on a software comparison site. It ranks #6 for a mid-volume keyword. Buried in it are three outbound links to tools that have since shut down — all returning 404s. A visitor clicks two of them, hits dead ends, and bounces. Google sees that behavioral pattern repeated across dozens of visits. Over the next 90 days, that post quietly slides from position 6 to position 14. No algorithm penalty announced. No warning in Search Console. Just a slow fade caused by a degraded user experience. Fix those three links and redirect the page's internal orphan situation, and it can recover — but it takes time.

That's not a hypothetical. That's a pattern I've seen on content sites more than once.

How Often Should You Check for Broken Links?

My opinion: quarterly is the minimum for active sites. If you publish frequently or rely on external sources in your content, monthly is smarter.

The set-it-and-forget-it mentality kills otherwise solid SEO work. A link that worked perfectly when you published a post in 2021 may have gone dead by 2023 without anyone noticing. According to a study referenced by Semrush, the average lifespan of a web page is around 100 days before it either moves or disappears. That number is worth sitting with for a moment.

For e-commerce sites, the stakes are higher. A broken product page link in a top-performing blog post can directly cost you conversions, not just rankings.

Set a recurring calendar reminder. Run the audit. Export. Fix. It doesn't have to take more than an hour once you have a workflow down.

FAQ

What is the best free broken link checker tool for beginners?

Screaming Frog SEO Spider's free version (up to 500 URLs) is the easiest starting point for beginners because the interface is clear and the export options are practical. For passive monitoring, Google Search Console should run alongside any tool you choose.

Can broken links hurt my Google rankings?

Yes, broken internal links waste your site's crawl budget and interrupt the flow of link equity between pages. Broken outbound links also degrade user experience, which is an indirect ranking factor.

How do I find broken links on my site without installing software?

Ahrefs Webmaster Tools and Google Search Console both let you identify broken links through a browser-based interface after you verify site ownership — no desktop installation required.

Do broken external links matter as much as broken internal links?

Internal broken links are generally more damaging from an SEO standpoint because they disrupt your site's own crawlability. Broken outbound links matter more for user trust and content credibility, but fixing both is worth the effort.

How long does it take to fix broken links once you've found them?

For a site with under 50 broken links, most people can work through fixes in one to two hours. Larger sites with hundreds of broken URLs may need a prioritized batch approach — start with pages that get the most organic traffic.

Run a free broken link checker tool on your site this week, export the results, and fix the top 10 most-linked broken pages first.