What I do is to paste in the URL and then remove several "&something=99999" chunks that look irrelevant, until it no longer works 😂. Confusingly, the first "&" has to be a "?" (or to put it another way, the parameters are separated from the address by "?" and from each other by "&").
In this case I reduced it to just ?sid=a44d4f311c1c64cfe4f2251cc73bd42b, which I presume is the property listing's identifier within the site.