Guides
Step-by-step guides to help you get the most out of dislike404.com and fix errors on your website.
Getting Started
New to dislike404.com? Start here. Learn how to add your website, understand your first scan results, and get the most out of the service.
How to add your website
Adding your website to dislike404.com is straightforward. Here is what you need to know before you start.
Read guideI added my website - what happens now?
Learn what dislike404.com does after you add your website, how to read your scan results, and what the different status codes mean.
Read guideHow to verify your website
Verifying your website proves that you own or manage it, and unlocks higher scan limits and additional settings.
Read guideTutorials
Step-by-step guides for specific features and settings of dislike404.com.
How to interpret your scan results
A walkthrough of your scan results page — what the tabs mean, how to use filters, and how to decide what needs your attention.
Read guideHow to use the blacklist
The blacklist lets you exclude specific URLs or entire domains from being scanned. Here is how it works and when to use it.
Read guideWhat to do when dislike404.com finds an error
A step-by-step walkthrough of how to investigate and resolve errors found in your scan results.
Read guideHow to Fix 404 Errors on Your Website
A 404 error means a page no longer exists at a given URL. Learn how to fix broken internal links, broken external links, and how to handle inbound broken links properly.
Read guideKnowledge Base
Technical references, HTTP status codes, and everything else you need to understand how website monitoring works.
What Is a Broken Link and Why Does It Matter?
A broken link is a hyperlink that no longer works. Learn what causes them, why they matter for SEO and user experience, and how to find them.
Read guideHow to Find Broken Links on Your Website
Broken links accumulate on any active website. Learn the most practical ways to find them, from manual checks to automated crawlers.
Read guideBroken Links and SEO — How Dead Links Hurt Your Rankings
Broken links do more than frustrate visitors — they waste crawl budget, interrupt link equity, and signal to search engines that your site is not well maintained. Here is what you need to know.
Read guideHow Often Should You Scan Your Website for Errors?
How often you should scan your website for broken links depends on how actively it changes. Here is a practical guide for different types of websites.
Read guideWhat Is a Soft 404?
A soft 404 is a page that returns a 200 OK status code but contains no useful content. Learn why soft 404s confuse search engines, how they differ from real 404s, and how to find and fix them.
Read guideHTTP Status Codes
A complete reference of HTTP status codes — what each code means, why it occurs, and what to do about it.
HTTP Status Code Reference
A complete reference of all HTTP status codes you may encounter in your dislike404.com scan results, including what each code means and what to do about it.
Read guideWhat Is a 301 Redirect?
A 301 redirect tells browsers and search engines that a page has permanently moved to a new URL. Learn why 301 redirects matter for SEO, how they differ from 302 redirects, and how to use them correctly.
Read guideWhat Is HTTP 401 Unauthorized?
HTTP 401 Unauthorized means the request requires authentication. Learn what causes 401 errors, how they differ from 403 errors, and what to do when you see one in your scan results.
Read guideWhat Is HTTP 403 Forbidden?
HTTP 403 Forbidden means a page exists but access is denied. Learn what causes 403 errors, how they differ from 401 and 404, and what to do when you see one in your scan results.
Read guideWhat Is HTTP 404 Not Found?
HTTP 404 Not Found means a page does not exist at the requested URL. Learn what causes 404 errors, what they mean for visitors and search engines, and how to fix them.
Read guideWhat Is HTTP 410 Gone?
HTTP 410 Gone means a page has been permanently removed and will not return. Learn how 410 differs from 404, when to use it deliberately, and what it means for SEO.
Read guideWhat Is HTTP 500 Internal Server Error?
HTTP 500 Internal Server Error means something went wrong on the server while processing a request. Learn what causes 500 errors, how to diagnose them, and how to fix them.
Read guideWhat Is HTTP 503 Service Unavailable?
HTTP 503 Service Unavailable means the server is temporarily unable to handle the request. Learn what causes 503 errors, how they differ from 500 errors, and what to do when you see one in your scan results.
Read guide