how to find broken links?
Broken links can be checked using various online tools like SEMRUSH and Majestic tools. These links are harmful for your website and should be restored before your website gets penalized.
Google Analytics is a great free tool for tracking website performance, and it's also helpful for easily finding broken links. First, log into your Google Analytics account and set the evaluation period for the amount of time you want to look at. If you check for broken links monthly, set the period for the month since your last check.
xenu is the best.
http://home.snafu.de/tilman/xenulink.html (http://home.snafu.de/tilman/xenulink.html)
Something like that but on-line is here:
http://www.deadlinkchecker.com/ (http://www.deadlinkchecker.com/)
But you have to enter the capcha code constantly