If the links are embedded in the body of the post, I can check them. However this post did not have links in the body; when I preview threads the title and date etc. fields are not visible and cannot be “tested.” Only the body of the post itself.
If you use an href you can test them, sure. But if you include your source url in the source box then you can click on that and see if it is a good link. That’s what I’m talking about. If you didn’t put the url in the source box then you didn’t include a link to your source page so there would be nothing to test.
I always include my source link unless it’s a rare personal vanity.