I was confused yesterday when I was just checking out the mobile friendly testing tool and I Googled [google mobile friendly test] and clicked on the first result and saw the old tool. Didn’t Google replace it with a new mobile friendly testing tool weeks ago?

Here is a screen shot showing the old tool listed before the new one:

I figured Google would redirect the old one to the new one but I guess they did not do that yet. I am not sure why they are keeping the old one around?

Here is how the new one looks:

Here is the old one:

The new one is so much cleaner and user friendly. Why keep both in the search results? Maybe Google should use the rel-canonical?

Forum discussion at Twitter.