Your Coeliac test tests for antibodies, as per the snip below. The numbers in the right hand column are the lab's assay range for non-coeliac. In all cases with tests, it is worthwhile knowing your own actual numbers. Sometimes it's good to know how close you might be to a diagnostic threshold.
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If you don't have antibodies it doesn't totally rule out coeliac disease. Only a colonoscopy can do that, so if being symptomatic was the reason for the tests being run, you may or may not be offered a colonoscopy.
If you are going to have a colonoscopy it is important not to change your diet radically beforehand, as that can impact any test results.
I have been gluten-free for a couple of years now. However, it is important you understand that being keto does not necessarily mean you are eating a gluten-free diet. Gluten finds its way into some very sneaky things like soy sauce and cola drinks, so if that is where you need to go it can be a steep learning curve.
Good luck with your diagnosis.
Edited to add the image. Obviously having a bad case of air brain today.