Tell you what, let's approach this from a different angle: what are you trying to protect against, and why? Maybe we can suggest what approach to take.
If you want to probe further into what homefinder.ca is doing, go ahead. I have no inclination to investigate as the data is not interesting to me, and if it were, I would be negotiating an API with them instead of trying to figure out how to bypass whatever mechanisms they have in place to prevent me from getting at their data from a script.