I'd just keep it simple - put the URL in if your profile is in good shape, leave it out if it's not. In IT this is totally expected, and you're actually shooting yourself in the foot if you don't include it, because recruiters are active there and will check your profile anyway.
but here's the thing other people miss: a lot of people put their LinkedIn URL and then have a profile that's totally outdated, looks half-finished, or has an unprofessional photo. that's worse than not giving a URL at all, because it comes across like "yeah I know LinkedIn but I can't be bothered." if you do include it, you really need to make sure your headline is current, the most important roles are listed, you have a good photo, and everything matches your CV. that honestly only takes half an hour but makes a difference.
my rule of thumb: if you're not happy with your profile yourself and can't update it in max 5 minutes, leave the URL out. better no link than one that gives the wrong impression. otherwise I'd say go for it - saves time on research and shows you're ready for professional networks.