Every modern web browser offers to save bookmarks that act as a reminder and quick way to open websites. Internet users who save bookmarks regularly end up with hundreds, and sometimes even thousands of bookmarks. The major problem here is that bookmarks do not update automatically. What this means is that bookmarks become invalid if the website in question gets deleted or moved.
Web browsers furthermore do not hinder a user to bookmark a website for a second time. Some may visualize that a bookmark already exists but none will stop the user from bookmarking a web page multiple times.
Update: Bookmark Sentry has been renamed to Bookmark Scanner.
Bookmark Sentry for the Google chrome browser is a browser extension that can scan all bookmarks for dead and duplicate links.
The extension scans all browser bookmarks automatically after installation. This can take some time depending on the number of bookmarks and the folder structure.
The scanner displays the scan progression in the extension's options. It shows the bookmark that is currently scanned, the percentage as a bar and number, the last scan, next scheduled scan and the number of problems found (which either means dead or duplicate bookmarks).
Scan results are displayed on the very same screen after a scan for duplicate or dead bookmarks finishes.
The extension displays status codes and text to make it easier for the user to identify the underlying problems. Each bookmark can be removed individually by clicking on the X at the front of each result. There is no option to delete all at once. Links are clickable to manually recheck the bookmark in question.
Bookmark Sentry will scan all bookmarks once a month by default. It is possible to change the interval to another or switch to manual checks only. The only other available preference is the time between connection scans. The default time is 10 seconds, reducing it will increase the scan speed.
Bookmark Sentry is a helpful extension for the Chrome browser. Most users are probably fine with running the extension once to check their bookmarks and disabling or uninstalling it afterwards. Only heavy bookmark users may need to use it regularly.
Update: A Chrome extension alternative is not available. Windows users can use AM Deadlink instead which supports the Chrome browser as well.
Chrome users may want to check out Favorites Checker for the browser instead.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.