I couldn't give you the exact number, but it's irrelevant considering that very few players use the name generator for their actual handle. More commonly it's used to give an idea of the type of handle we approve, and as the generator was coded before many of the current handle rules, a portion of names it suggests are not valid in the first place.
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Go to chrome://settings/content/insecureContent and add www.swcombine.com to the Allow list.
If you want. I'm not your dad or whatever.