Problem:
You are using linkchecker to check your WordPress site, but you get the following error multiple times:
$ linkchecker https://techoverflow.net URL `https://techoverflow.net/xmlrpc.php' Parent URL https://techoverflow.net/, line 8, col 1 Real URL https://techoverflow.net/xmlrpc.php Check time 1.394 seconds Result Error: 405 Method Not Allowed
Solution:
Installing a plugin that disables XMLRPC doesn’t help here – because the XMLRPC pingback link will still be present on every page.
Instead, just tell linkchecker to ignore the XMLRPC link altogether:
linkchecker https://techoverflow.net --ignore-url=/xmlrpc.php$