I concur with Kevin’s advice here:
“Sure, syndicate the content to other places to increase visibility and delivery to a focused audience, just like you syndicate your content through social media, but make your place – your blog or site – the primary site.
When syndicating to third party sites, ask that that your content reference that the piece was originally published on your site or blog. That’ll signal your blog or website as the primary site.”
I really try to do exactly that. Even if I’m going to publish an article on LinkedIn or Medium, it’s being copied from my own site, and linked back to that as the original. I want to be able to control what happens to that content long term, not be at the mercy of a third party as to whether it’s going to stay where it is.
I’m not being asked to publish on legal tech websites or anything, but I have written training blog posts for a certain software company that I used to work for, who got rid of their blog and that information simply disappeared. Oddly enough, a few years later, working with another law firm who was using their tool, it would have been really helpful to be able to point them to that article, it literally answered the question they had, but instead I tried to do it, poorly, from memory.
I’ve also recently received an email from someone pointing out that a link from my blog to something was dead. My response? Over the 17 years of blogging, sadly, there are a lot of links that point nowhere now. I can’t really fix that, and have little desire to go back and try. If it’s not in the Internet Archive, which you can search using the link URL, it’s just about impossible to find now. Sorry.
At least I know my posts are still where I say they are.