SEO & Link Checking

Link Checker

Check the HTTP status, final URL, and number of redirects.

The URL must start with https:// or http://
Link checker and HTTP status checker for detecting broken links and server errors
Check Links and HTTP Status

A link may look correct on the page but return a 404 error when opened, pass through a redirect, or reach a server that does not respond as expected. Looking at the URL alone is not enough; what matters is the actual response returned by the server.

The Link Checker and HTTP Status tool helps you test a URL and read its response code, making it easier to distinguish between a page that works normally, a redirected URL, a missing page, and a server-side error.

This review is useful when maintaining internal and external links, after moving pages or changing permalinks, and before publishing content with many links. The earlier you detect a problem, the easier it is to fix.

200 301 404 500
When to Use It

You do not need to wait for a user complaint before testing links. There are several common situations where checking URLs is useful, especially after technical changes or content updates.

After Changing a Page URL

Check both the old and new URL to confirm that the redirect works as expected and that users do not end up on an error page.

Before Publishing a Long Article

If the content contains many internal or external links, it is useful to test them before publishing instead of discovering broken links later.

After Migrating a Website

Domain or structural changes can leave old links behind. Checking URLs helps identify paths that were not migrated correctly.

When You See a 404

Verify whether the problem is truly a missing page rather than an incorrect redirect or a URL that was typed incorrectly.

Reviewing External Links

External websites may move or delete pages, so link checks can help identify URLs that no longer reach the intended source.

Diagnosing a Server Problem

5xx status codes indicate a server-side problem and should be treated differently from a 404 response, which usually means the requested resource was not found.

200, 301, and 404

You do not need to memorize dozens of status codes to get started. Understanding a few common codes explains a large share of everyday link problems.

200 — Successful Response

The server received the request and returned the resource successfully. When checking a normal page, this is usually the type of response you expect to see.

301 — Permanent Redirect

The resource has permanently moved to another URL. This is useful after changing URLs, but unnecessary redirect chains should still be avoided.

404 — Page Not Found

The server could not find the requested resource. If the URL is internal, review whether it should be fixed or redirected to an appropriate replacement.

The first digit of a status code tells you the general type of response, which makes it easier to narrow down the problem before investigating further.

Class General Meaning Examples What Should You Review?
2xx The request was successful. 200 Confirm that the returned page is the page you actually intended to reach.
3xx The request is being redirected to another URL. 301, 302 Review the final destination and the number of redirects.
4xx There is a problem with the request or requested resource. 403, 404 Check the URL, access permissions, and whether the page exists.
5xx The server encountered an error while processing the request. 500, 502, 503 Review the server, application, or backend service status.
How to Use It

Running the check is simple, but interpreting the result is the important part. Do not stop at the status code itself; compare it with what you expected the URL to do.

Enter the URL

Paste the complete URL and verify the protocol, domain, and path before starting the test.

Run the Check

Start the test to see the response returned by the server for the requested URL.

Read the Status

Determine whether the URL works successfully, redirects, is missing, or has a server-side problem.

Fix the Cause

Update the URL, redirect, or destination page according to the actual status instead of only addressing the visible symptom.

Before You Consider a Link Healthy

A URL can return 200 and still lead to a different page than the one you intended. Always evaluate the response within the context of the link itself.

1

Confirm that the final URL reaches the correct page rather than a generic page or unrelated result.

2

If a redirect exists, check whether it is necessary and whether the final destination is still appropriate.

3

When an intermittent 5xx error appears, test again and review server health rather than assuming the URL itself is incorrect.

User Experience and Technical SEO

A broken link interrupts the path a user or crawler was expected to follow to another piece of content. As outdated or incorrect links accumulate, the website becomes harder to maintain and navigate.

Better Internal Links

Healthy internal links make navigation between pages clearer and prevent users from landing on missing pages.

Easier Content Maintenance

Finding a broken link early is better than allowing dozens of outdated links to accumulate across articles and pages.

Cleaner Redirects

Reviewing 301 redirects helps reduce redirect chains and lets you update internal links so they point directly to the final destination.

A More Stable User Experience

Links that behave as expected maintain smooth navigation and reduce frustration while users move between sections of the website.

Reviewing External Links

External resources change over time, so older content deserves occasional review when it relies heavily on reference links.

Faster Problem Diagnosis

Knowing the HTTP status code narrows the investigation: is the issue the URL, redirect, permissions, or server?

Common Mistakes

Many link problems do not require a complicated solution. Understanding the actual status first is often enough to make the right decision.

1

Treating every redirect as a problem, even though a 301 may be intentional after moving a page to a new URL.

2

Trying to fix an external broken link with an unrelated internal redirect instead of updating or removing the source link when it is no longer useful.

3

Focusing only on the status code without confirming that the final page is actually the content the link was intended to reach.

Frequently Asked Questions
What Does Checking an HTTP Status Mean?
It means testing a URL to see what response the server returns, such as a successful request, redirect, missing page, or server-side error.
What Does a 200 Status Code Mean?
It means the request succeeded and the server returned the requested resource. You should still confirm that the returned page is actually the page you intended to reach.
What Is the Difference Between 301 and 302?
Both are redirect status codes. A 301 indicates a permanent move, while a 302 is generally used when the redirect is temporary.
What Does a 404 Error Mean?
It means the server could not find the requested resource at that URL. The page may have been deleted, moved, or the path may have been entered incorrectly.
What Do 5xx Errors Mean?
They indicate that the server encountered a problem while handling the request. Examples include 500, 502, and 503, and they require a different type of investigation from 4xx link errors.
Does Every 301 Redirect Need to Be Fixed?
Not necessarily. A 301 may be correct after moving a page, but within your own website it is usually better to update internal links so they point directly to the final destination when possible.
Should External Links Be Checked?
Yes, especially in older articles or pages that rely on many external sources because those websites may change URLs or remove pages over time.
Does a 200 Status Mean the Link Is Perfect?
Not always. A 200 status means the request succeeded technically, but you should also confirm that the final content is the intended page rather than a generic or unrelated result.

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