Ask HN: Adware or Malware Website?

Hi HN community:

I set up a new MAC a few weeks ago and installed Firefox as my default web browser.

Firefox use duckduckgo as default search engine.

I’m searching some tricks of using zsh. All of the searches are using duckduckgo. Then, this happened. This happened to me a few times already.

One of my web pages was redirected to a Zsh download for Mac from coldballs.co.

https://coldballs.co/zsh-for-mac-os/ (be careful with this link if you are on Mac)

This link is masqueraded as a Mac App Store download page.

On my Ubuntu machine, the link above looks fine.

Then, I searched the same query on google. I won’t be able to see this website on the top search pages.

What is going on here? Anyone can explain? Thanks.