... indicates that the webmaster has never been to Germany etc. These are titles, not genders. In some countries the titles "Mrs.", "Doctor", "Professor" pile up into one combined title. There's absolutely nothing wrong with that drop-down list in much of Europe.
Edit: looks like I was beat to it.
I personally think it's silly to require someone to fill in the title in all use cases except for the title an education facility puts on one's fancy piece of paper. There's a certain vanity to it, like programmers who insist others call them "engineers".
And there is much wrong with it in other parts. It's two generations ago that the war against sexism put 'mrs' out of style over here, so it feels quite culturally insensitive in academic and therefore international environments to keep asking women if they are married or not.
But nowadays "Frau Doktor" usually refers to a woman who is a doctor, as "Doktor" has a male grammatical gender, so it's awkward to address a woman only as "Doktor X", even though that's technically acceptable. The grammatically female word "Doktorin" has not caught on, even though it's also correct.
Fifty years ago, could be either.
Nowadays, no.