My recommendation is if you know the three SPA'S, then use their names on the title because,,,,,
Almost no one memorize the address for every SPA they visit, and so likely the only hit could be from someone where that's the only SPA they've ever been. And only one of three so they don't respond either.
And finally, people see you can't be bothered to write the names so why should they bother writing it for you?