“Selling the OC” has really given “sugar daddy” seekers a major boost … cuz this season they’re peddling more than just homes — with one dating site seeing a big boost of visitors.

Here’s the deal … on Season 4 of “Selling the OC,” a website once used to connect thirsty young ladies with sugar daddies has been all the talk — ever since Ashtyn was accused of meeting her husband, Jeff, on the site.

Turns out that’s been great for business, because a rep for Seeking.com — formally known as Seeking Arrangements — tells us they’ve seen a major spike in women looking to live the good life jumping on the site … especially in Washington D.C., L.A., Orlando, NYC and Miami.

But don’t quit those day jobs just yet, ladies … because we’re told the site rebranded in 2022 and no longer condones or endorses “sugar dating” — and doesn’t allow arrangements on the site. In other words, it’s no longer the place to try to swindle lonely, rich, old bachelors. Now, Seeking.com operates as a “luxe” site where equally successful individuals can match.