A support ticket came in to my network this weekend for a member to verify their site with Pinterest. The more I looked into this, the bigger the problem became. I was hoping one of the WPMU team had already dealt with this issue at some point and could help.
My network is a mutli-site using a Parent-child theme setup. I considered a tool like "Custom Header-Footer" plugin, but then I thought "This could add up to a whole lot of entries into my header over time if I'm not careful". I looked at Infinite SEO, but it only had verification for Google and Bing.
I can see in the long term people wanting to verify MailChimp/Mandrill, Google, Pinterest, and others. WordPress.com has a bit of a solution in their system with their webmaster tools setup. Is there something similar available on the .org side?
What do you recommend?