Does Turnitin match my paper against sources found after I submitted by paper? I have to submit my dissertation through Turnitin. I am planning on publishing the dissertation on my website a few days after submitting it through Turnitin so future employers can see what kind of work I produce.

I was wondering if posting it online after submitting it through Turnitin would cause any problems? The Turnitin content scrapers would find the disseration online after I submitted it through Turnitin so would it appear on the Turnitin similarity report and affect the similarity score?

TL;DR: I post the dissertation on the internet AFTER submitting it through Turnitin. Would it show up on my similarity report?
The Turnitin settings allow for checking either when submitted or on the due date. It depends on which of these options were selected by whoever is administrating the submissions