One of the sites which people reference on Buddhism.SE is Piya Tan's "Dharmafarers".
The URLs of reference material on that site have changed, for example:
The old URLs no longer work (and aren't redirected automatically).
They did implement this automatic redirection (301 Moved Permanently) ...
... but that doesn't appear to work for the Wordpress resource files (
So, what tools can you recommend, to find a set hyperlinks -- e.g. all hyperlnks on Buddhism.SE which begin with
And is there any tool to edit these automatically i.e. in bulk?