You can look for applications called "web scrapers'" or "offline website download" or """spiders". What they do is you give them a domain or URL, and usually you give them a limit how many links deep should you download an offline copy. This means if the website has a link to another website, such as an article about the KungFlu and it links to a published study, if you select 1 deep, it will download the main website and any website that's been linked to from the original website. Although this means the research document may have some links which won't be downloaded, unless you specify that domain/link. You can download them as websites or expected as PDFs or word docs. But note, although many of us here may read an offline copy of a website and hold our tongues in regards to how authentic it is (due to how easy it is, once you download a website, for you to edit it, go modify it, and thus spread some of your own propaganda) if you were to archive a website/URL using a service such as the internet archive, it would hold far more merit and value. It has been archived by a 3rd party which has this far remained legit and given few if any reasons to doubt it's ability to store whole legit copies of a website or image or video, made available online. Just to keep in mind. Me personally I have on my phone an app that exports websites as PDFs for offline reading and I simply send a website to the app which exports it as a PDF to my documents folder, usually doing this with Amy website/link I have the "feeling" will change its content or remove the entire link. On my computer I've gotten. Into the habit of pressing Ctrl-S to save the website, or pressing Ctrl-P and selecting my PDF printer to print it. Get I'm the habit of doing the same! Be sure to BACKUP these documents to two locations as well.