Check all links on a website, identify broken links, and analyze different types of links.

What is this?

LinkChecker is a website link checking tool. Enter a website URL to find all non-working broken links, while filtering internal and external links for comprehensive link health analysis.

Why I Built This?

In my notes, I often store links to articles or website tools, so that I can revisit them when I have time.

Although I try to organize some websites into navigation-like interfaces, many websites are not included. After a while, these websites may become inaccessible. At this point, if I can know which websites have failed, I can replace them in time.

So, I wrote a tool that can batch check whether website links are broken. Later, I continued to improve this tool to further check all links on an entire website, so that I can more comprehensively analyze the link health of the website.

And, to better align with SEO optimization, I also added filtering features, such as grouping links by domain and filtering by status, as well as identifying internal and external links.

Core Features

• Internal/External Link Analysis - Identify and categorize internal and external links
• Real-time Filtering - Group by domain and filter by status
• RSS Discovery - Find RSS subscription links on blogs

Check Modes

Mode	Description
Basic Check	Batch input links, quickly get return status codes for each link, suitable for verifying bookmarks, external link lists, etc.
Advanced Check	Enter a website URL, automatically extract all available links from the page and check status one by one, find broken links, suitable for full-site link health checks

What Problem Does It Solve?

When maintaining websites or organizing bookmarks, checking link validity manually is time-consuming. Existing tools often require login and captcha verification. LinkChecker provides a simple, login-free solution for comprehensive link health monitoring.