Unable to reach Pingomatic

I setup WordPress Yesterday and I’m impressed. The question I have is
why can I no longer get to ping-0-matic from my Browser. I had already been using Pingomatic for previous Blogs and now I’m not sure how to get there. Is this just a coincidence or is there some change I need to reverse.
Spooky, I even tried from my laptop and the same.
??? If no fix, I hope someone knows what happened.