For more than 25 years, I am simply writing HTML with only a little CSS and some JavaScript. During that time, I have developed a link checking program, which helps me fixing links and updating the tags. It is a simple C program and rather specific for my needs: https://www.iwriteiam.nl/chkhtml_c.txt It also moves all files that need to be updated to an ftp folder for easy uploading to my hoster.