Google's John Mueller said it is generally better to use pop up style DIVs for age verification authentications or gates as opposed to using interstitial forms. He said this on Twitter this morning.
He said when it comes to age verification gates that they "are always tricky." He then added "popup-style DIVs are usually better than interstitials," adding that one should "avoid redirects to interstitials."
Here is the tweet:
These are always tricky. Popup-style DIVs are usually better than interstitials; avoid redirects to interstitials.— John â.o(â§â-½â¦)o.â (@JohnMu) June 7, 2017
Here is a pure code example of what a pop up DIV can look like, but they come in all shapes, sizes, colors and forms:
Forum discussion at Twitter.