Broken Link Checker Tool: Find and Fix Dead Links Before They Hurt Your SEO
A broken link checker is a tool that scans your website and flags any hyperlink that no longer works, whether it’s an internal page, an external site, or an image. It works by crawling every URL on your site and checking the HTTP status code each one returns. If a link comes back with a 404 or similar error, the tool reports it so you can fix or remove it before it damages your SEO and user experience. ToolHubZone’s Broken Link Checker does exactly this, and it’s free to use right from your browser.
Broken links are one of those problems that pile up quietly. A page gets deleted, a product goes out of stock, a partner site restructures its URLs, and suddenly your visitors are clicking into dead ends. Most site owners don’t notice until traffic drops or Google Search Console starts flagging errors. That’s exactly why a broken link checker tool exists: to catch these dead links before they cost you rankings, trust, or sales.
Whether you’re running a small blog or managing an ecommerce store on Shopify, checking your site regularly for broken links isn’t optional anymore. It’s basic site maintenance, the same way you’d check for spelling errors or slow-loading pages. At ToolHubZone, this tool was built to make that maintenance simple: no downloads, no signups, just a quick scan whenever you need one.
What Is a Broken Link Checker?
A broken link checker is software that crawls a website’s pages and tests every hyperlink it finds, internal links, external links, image sources, and even links inside PDFs or documents. For each URL, the tool sends a request and records what comes back. If the server returns an error instead of the expected page, that link gets flagged as broken.
The term “broken link” covers a few related problems. A dead link points to a page that no longer exists. Link rot describes the gradual buildup of these dead links across a website over time, since content gets moved, deleted, or restructured constantly on the web. A 404 error is the most common signal of a broken link: it means the server couldn’t find the requested page.
Not every broken link looks the same, though. Some links redirect endlessly in a loop. Others point to a page that loads but shows the wrong content. Some just time out because the server is down. A good broken link checker catches all of these cases, not just the obvious 404s.
Here’s a simple way to think about it: every link on your website is a promise to your visitor that clicking it will take them somewhere useful. A broken link checker exists to make sure your site keeps that promise, page after page, without you having to click through everything manually.
Why Broken Links Hurt Your SEO and User Experience
Broken links don’t just annoy visitors, they send a signal to Google that your site isn’t well maintained. Search engines crawl your pages the same way a broken link checker does, and when their crawler keeps hitting dead ends, it wastes what’s known as crawl budget, the limited number of pages Googlebot will crawl on your site during a given visit. Sites with a lot of broken links often end up with important pages crawled less frequently, simply because the crawler spent time on links that led nowhere.
There’s also a direct impact on domain authority. When other websites link to your dead pages, or when your own internal links point to pages that no longer exist, you lose the value those links were supposed to pass. This is especially costly with backlinks. If an authoritative site links to a page on your domain and that page returns a 404, you’re losing SEO equity that took real effort to earn.
On the user side, the damage is more immediate. A visitor who clicks a link and lands on a “Page Not Found” screen usually doesn’t try again, they leave. This shows up in your analytics as a higher bounce rate and lower time on site, both of which factor into how search engines judge your site health and overall user experience. A handful of broken links might not tank your rankings overnight, but a pattern of them, especially on high-traffic pages, tells Google your site isn’t being maintained, and that’s rarely good for technical SEO.
The fix isn’t complicated. It just requires knowing where the broken links actually are, which is the whole point of running a scan regularly instead of waiting for problems to show up in your traffic numbers.
How a Broken Link Checker Tool Works
At its core, a broken link checker works like a mini version of what Google’s own crawler does. It starts at your homepage (or a URL you provide), reads the HTML, and pulls out every link it finds. Then it visits each one and checks the HTTP status code the server sends back.
A status code is just a short number that tells you what happened when the tool tried to load a page. A 404 Not Found means the page doesn’t exist at that address. A 410 Gone means the page existed before but has been intentionally removed, which is actually a clearer signal to search engines than a 404. A 500 Server Error means something broke on the server’s end, not necessarily that the link itself is wrong. Good tools separate these codes out, because fixing a 404 is a different job than waiting out a temporary server issue.
Most broken link checkers work in one of two ways. Some crawl your entire site structure on their own, following internal links from page to page like a web crawler or bot would. Others read your sitemap directly, which is faster since it already lists every page you want indexed, and skips the guesswork of discovering pages through navigation alone. Some tools also respect your robots.txt file, which tells crawlers which parts of your site they’re allowed to check.
Once the scan finishes, you get a report listing every broken URL, its status code, and usually the page it was found on. From there, it’s up to you to decide whether to fix, redirect, or remove each one. ToolHubZone’s Broken Link Checker follows this same crawl-and-report process, scanning the pages you submit and returning results without requiring you to install anything or dig through your site’s code manually.
Types of Broken Links You Should Know About
Not all broken links are the same, and knowing the difference helps you decide how urgently to fix each one.
The first distinction is internal link versus external link. An internal link points to another page on your own site, while an external link (also called an outbound link) points to a different domain entirely. Internal broken links are usually easier to fix since you control the destination. External ones are trickier, because the other website might have restructured its URLs, shut down, or changed ownership without any warning to you.
Then there’s the question of redirects. A 301 redirect permanently sends visitors and search engines from an old URL to a new one, passing along most of the page’s SEO value. A 302 redirect does the same thing but signals that the move is temporary, so search engines don’t treat it as permanent. Broken redirect chains, where one redirect leads to another and another, are a common but often overlooked cause of slow pages and lost link equity.
The table below breaks down the most common HTTP status codes you’ll see in a broken link report, what each one actually means, and what to do about it.
|
HTTP Status Code |
What It Means |
What To Do |
|---|---|---|
|
404 Not Found |
The page doesn’t exist at this URL |
Redirect to a relevant page, restore the content, or remove the link |
|
410 Gone |
The page existed but was intentionally removed |
Leave as is if removal was permanent, or redirect if there’s a suitable replacement |
|
301 Moved Permanently |
The page has permanently moved to a new URL |
Update the link to point directly to the new URL instead of relying on the redirect |
|
302 Found (Temporary) |
The page has temporarily moved |
Monitor it. Update the link only if the move becomes permanent |
|
500 Internal Server Error |
The server encountered an error processing the request |
Check server logs. This usually isn’t a link problem, it’s a hosting or configuration issue |
|
503 Service Unavailable |
The server is temporarily down or overloaded |
Re-check later. Often resolves on its own once server load decreases |
Knowing which code you’re dealing with matters because not every broken link needs the same fix. A 404 on a page you deleted on purpose might just need a redirect. A 500 error, on the other hand, has nothing to do with your links at all, it’s a server-side problem that a broken link checker will still flag, but that your hosting provider needs to solve.
Best Broken Link Checker Tools Compared
There’s no shortage of tools that claim to find broken links, but they differ quite a bit in what they actually offer, how much they cost, and how much technical setup they require. Here’s an honest breakdown of the most commonly used options.
Screaming Frog is a desktop-based crawler popular with SEO professionals. It’s powerful and handles large sites well, but it requires a download and has a steep learning curve for anyone who isn’t already familiar with technical SEO tools.
Ahrefs Broken Link Checker pulls from Ahrefs’ backlink database, which makes it strong for finding broken external links pointing to your site, not just links within it. The free version gives a basic report, but deeper features sit behind a paid plan.
SEMrush offers broken link checking as part of its larger Site Audit tool. It’s thorough, but you’re paying for an entire SEO suite rather than a standalone checker, which isn’t ideal if all you need is a quick scan.
Google Search Console doesn’t check broken links directly, but it does show crawl errors Google itself encountered, which is useful as a secondary check even though it’s not built for this specific job.
Dr. Link Check, Xenu’s Link Sleuth, and the W3C Link Checker are older, more technical tools. They work, but Xenu requires a Windows download and the W3C tool is really built for HTML validation more than ongoing link monitoring.
For WordPress users, the Broken Link Checker plugin runs directly inside your dashboard and scans automatically, which is convenient but can slow down your site if you’re on shared hosting, since it runs constant background checks.
If you just want a fast, browser-based broken link checker tool without installing anything or creating an account, ToolHubZone’s Broken Link Checker is built for exactly that. You paste in a URL, it crawls the page, and you get a straightforward report of what’s broken, without the upsells or the learning curve that comes with the bigger SEO suites.
|
Tool |
Free or Paid |
Best For |
Login Required |
|---|---|---|---|
|
ToolHubZone Broken Link Checker |
Free |
Quick scans, no setup |
No |
|
Screaming Frog |
Free (limited) / Paid |
Large sites, technical SEO teams |
No (desktop app) |
|
Ahrefs Broken Link Checker |
Free (limited) / Paid |
Finding broken backlinks |
No for basic scan |
|
SEMrush Site Audit |
Paid |
Full site audits, agencies |
Yes |
|
Google Search Console |
Free |
Monitoring Google’s own crawl errors |
Yes |
|
WordPress Broken Link Checker Plugin |
Free |
WordPress sites, automatic monitoring |
No (runs in dashboard) |
|
Ahrefs SEO Toolbar (Chrome Extension) |
Free |
Checking links on a single page while browsing |
No |
If you’re managing a handful of pages, a browser-based tool like ToolHubZone’s checker is usually enough. If you’re auditing thousands of pages across a large site, something like Screaming Frog or Ahrefs, built for bulk crawling, will handle the scale better.
Malicious/security link checking
They check for SSL certificate validity, blacklisted domains, and malware/phishing links, not just dead links. This is a real gap since “is a dead link checker safe” ties directly into this.
Soft 404s / “soft error check”
A page that returns 200 OK but actually shows an error message or blank content. This is a legitimate broken-link category we haven’t covered at all in our “Types of Broken Links” section.
Scheduled/automatic checking
All three heavily promote “auto check” (daily/weekly/monthly scans with email reports). We mentioned “check monthly or quarterly” briefly in the how-to section, but didn’t frame it as a distinct concept worth its own mention.
Multi-site / bulk checking
Checking multiple domains in one run, not just multiple pages on one site. We touched on bulk for large sites, but not multi-domain scanning, which is a distinct use case (e.g., agencies managing several client sites).
Broken link building as an SEO tactic
Both competitors mention using competitors’ broken pages as link-building opportunities. This is a bonus/advanced use case we haven’t touched, and it’s in your original keyword list (“broken link building,” “broken link generator”).
CSS and resource file links
They check stylesheets and resource files too, not just HTML tags and images. We mention this briefly but could be sharper.
How to Check Your Website for Broken Links (Step-by-Step)
Checking your site doesn’t require any technical background. Here’s how to do it using ToolHubZone’s Broken Link Checker.
Go to the tool.
Open ToolHubZone’s Broken Link Checker in your browser. No signup or download needed, it works directly on the page.
Enter your website URL.
Paste in the homepage or the specific page you want to scan. If you’re checking a single blog post or product page, you can paste that exact URL instead of the whole domain.
Run the scan.
The tool crawls the page, follows the links it finds, and checks each one’s status code in the background. Depending on how many links are on the page, this usually takes a few seconds to a couple of minutes.
Review the report.
You’ll get a list of every broken link found, along with its status code (404, 500, etc.) and where on the page it appears. This makes it easy to jump straight to the problem instead of searching your HTML manually.
Prioritize what to fix first
Not every broken link needs immediate attention. Focus on links found on high-traffic pages, or ones with a lot of internal links pointing to them, since those cause the most damage to crawl efficiency and user experience.
If you’re managing a larger website with hundreds or thousands of pages, checking one URL at a time isn’t practical. In that case, running scans page by page across your most important sections (blog, product pages, category pages) works better than trying to crawl the entire site in one pass. For very large sites, pairing a quick tool like this with a dedicated crawler such as Screaming Frog for full-site audits gives you both speed for routine checks and depth for periodic full scans.
It’s also worth checking your site on a schedule rather than once. Links that work today can break next month simply because an external site you linked to changed its structure. A monthly or quarterly scan catches these before they pile up.
How to Fix Broken Links Once You Find Them
Finding broken links is only half the job. What you do next depends on why the link broke in the first place.
If the page moved to a new URL, set up a 301 redirect from the old address to the new one. This is the most common fix and it preserves most of the SEO value the original page had built up. Most content management systems, including WordPress and Shopify, let you add redirects without touching code directly.
If the page was deleted on purpose and there’s no replacement, you have two reasonable options. You can let it return a 410 Gone status, which tells search engines clearly that the removal was intentional, or you can redirect it to a closely related page if one exists. Redirecting to an unrelated page just to avoid a 404 usually does more harm than good, since it confuses visitors and can look manipulative to search engines.
If the broken link points to an external site, first check whether the destination page moved rather than disappeared entirely. A quick search for the page title often turns up its new URL. If the external site is genuinely gone, either remove the link or replace it with a link to a similar resource that’s still live.
If you can’t fix every broken link right away, a well-designed 404 page helps in the meantime. Instead of a dead end, a good 404 page includes a search bar, links to popular pages, and clear navigation back into your site. It won’t fix the SEO issue, but it does reduce the damage to user experience while you work through the backlog.
One thing worth avoiding: don’t just delete a broken link without checking what was linking to it internally. If several of your own pages point to that URL, you’ll want to update all of them, not just the one you happened to notice first. This is exactly why running a full link audit periodically, rather than fixing issues one at a time as you stumble across them, saves time in the long run.
Broken Link Checker for WordPress and Shopify
WordPress sites tend to accumulate broken links faster than most, mainly because of how often themes, plugins, and page builders get updated or swapped out. If you’re using WordPress, you have two main options. The Broken Link Checker plugin runs inside your dashboard and flags dead links automatically, which is convenient if you want ongoing monitoring without remembering to run manual scans. The tradeoff is that it runs continuously in the background, which can slow down page load times on shared or lower-tier hosting. If performance is a concern, running an external scan with a tool like ToolHubZone’s checker every few weeks avoids that overhead while still catching the same issues.
Shopify works differently since it’s a hosted platform without direct access to a traditional CMS dashboard plugin ecosystem the way WordPress has. For Shopify stores, broken links usually show up in a few predictable places: discontinued product pages, deleted collections, or blog posts that reference products no longer in the catalog. Since Shopify doesn’t have a native broken link checker built in, running your store’s URL through an external tool periodically is the more practical approach. Pay particular attention to product pages that have accumulated backlinks or ad traffic, since a broken link there directly affects sales, not just SEO.
For both platforms, the underlying fix is the same: identify the broken URL, decide whether to redirect, restore, or remove it, then update any internal links pointing to that page so the problem doesn’t just resurface next month.