𝕋𝕙𝕚𝕤 𝕚𝕤 𝕛𝕦𝕤𝕥 𝕒 𝕥𝕖𝕤𝕥. ★★★★★ (Test it says)

A̐̈ ̐̈t̐̈e̐̈s̐̈t̐̈ ̐̈o̐̈f̐̈ ̐̈h̐̈o̐̈w̐̈ ̐̈y̐̈o̐̈u̐̈ ̐̈w̐̈i̐̈l̐̈l̐̈ ̐̈s̐̈e̐̈e̐̈ ̐̈t̐̈h̐̈i̐̈s̐̈ ̐̈d̐̈i̐̈s̐̈p̐̈l̐̈a̐̈y̐̈e̐̈d̐̈ ̐̈i̐̈n̐̈ ̐̈t̐̈h̐̈e̐̈ ̐̈s̐̈e̐̈a̐̈r̐̈c̐̈h̐̈ ̐̈r̐̈e̐̈s̐̈u̐̈l̐̈t̐̈s̐̈.̐̈

But really, this is just a test of UTF8 possibilities and capability of Google to process these characters.

Pizza SEO has found a better way to A/B test headlines for a small website.