How dislike404.com Keeps Your Website Error-Free
Broken links are easy to miss. A page gets moved, an external site goes down, and suddenly you have dead links all over your website - and no idea. Here's how dislike404.com makes sure that never happens.
Everything you see here is free. A few features work a bit differently depending on whether your website is verified. Verifying is free and takes just a few minutes.
Automated Monitoring
You set it up once. We do the rest.
Automated Scanning
Our crawler goes through your entire website at regular intervals and checks every page and outgoing link for errors. You set the schedule, we do the rest.
Adjustable Scan Interval
You choose how often your website gets scanned - from once a day to once a month. Once set, our crawler will stick to that schedule automatically.
On-Demand Scanning
Trigger a manual scan at any time - available for all users, verified or not. Perfect after a deployment or content update.
Pause Scanning
You can pause the automatic recurring scan at any time - handy if your website is temporarily offline, under construction, or you just don't need the alerts right now. Even with automatic scans paused, you can still trigger a manual scan whenever you want.
Error Detection
More than just checking if a page loads.
Full HTTP Status Checking
Every link on your website gets checked - internal pages, external links, images, scripts, stylesheets. Every redirect gets followed, and anything that doesn't return a clean response gets flagged.
Content Parsing
Everything that returns HTTP 200 with a text/ content type gets parsed: HTML, XML, sitemaps and more. That way we don't just check if a page is reachable, we also find every link hiding inside it.
JavaScript URL Extraction
Our crawler also extracts URLs from JavaScript and checks those too - without actually executing the JavaScript. So broken URLs referenced in your scripts get caught as well
Error Pages Get Checked Too
Found a 404 page? We don't stop there. Error pages get scanned for broken links just like any other page. Because a broken link on a 404 page is still a broken link.
Notifications & Alerts
Know immediately when something breaks.
Email Alerts
When a scan finds errors, you get an email. No manual checking, no guessing - we let you know when something needs your attention.
Flexible Notification Settings
Choose from three notification modes: no emails, errors only, or a full status report after every scan.
Control & Customization
Your website, your rules.
URL Blacklisting
Exclude specific URLs, path patterns or external domains from the crawler - via your robots.txt or directly through the blacklist manager in your dashboard.
Customizable Crawl Speed
Control how aggressively our bot crawls your website. Run lightweight scans to minimize server load, or crank up the speed for faster results.
Multiple Website Monitoring
Add all your websites to a single account. Each one gets its own scan settings, error history and notification preferences - fully independent. Currently, you can add up to 5 website to your account. If you need more, just send me a message.
Robust Scanning Limits
Verified websites can scan up to 50,000 internal pages - meaning any page on your website with actual content - and up to 500,000 total requests, which includes every single asset we check along the way: images, scripts, stylesheets and more. Need higher limits? Just send me a message.
Trust & Transparency
Privacy-first. Built by a developer, for developers. Made in Germany
robots.txt Compliance
Our crawler respects your robots.txt rules. Pages you've marked as off-limits will never be crawled - not on your site, not on external sites either.
Clearly Identified Bot
Our crawler identifies itself openly with a dedicated user agent. No hidden traffic. You can always verify what it's doing in your server logs. Learn more →
Hosted in Germany. GDPR-compliant
dislike404.com runs on a server based in Germany. Your data stays in the EU and is processed in compliance with GDPR. Have a look at our Privacy Policy if you want to know more.
No third-party trackers. No cookie banner.
dislike404.com doesn't use Google Analytics, external fonts or any other third-party services. We do use Matomo for analytics – but it's self-hosted, and IP addresses are anonymized. No cookies, no banner, no nonsense.