William and Kate's wedding anniversary photo speaks volumes of their popularity

Response to the Prince and Princess of Wales wedding photo online suggests that the royal couple is hugely popular among social media users.

Prince William and Kate Middleton posted a photo online to mark their 12th wedding anniversary.

The photo showed the couple on bikes in Norfolk during sunny weather last year.

It was posted on the couple's official Twitter account, with the simple caption "12 years" and a heart emoji.

More than 3 million people saw the photo of the Prince and Princess of Wales on Twitter within a few hours after it was shared on Twitter.

Thousands of people liked the picture and hundreds others praised in the comments.

The picture was also posted on the official Instagram page of the royal couple.