If you use i.e. the Firefox browser with a "save to pdf" plugin or the Opera browser (has this included) you can save (almost) every website with a click on "save as pdf". That's the fastest way to save every website that looks like it possibly could be important.       If you only saved the links this will not help if the linked site was removed. You can try to find a backup at http://archive.md/ or https://archive.org/web/ but these copies can also be removed.