The Royal Family's official website is sending visitors to a Chinese pornography page instead of a charity, thanks to a major blunder.
The link also manages to override child-lock filters, meaning anyone can access the X-rated content, which includes click-throughs to "rape incest porn".
Royal.uk contains news and information about The Firm and features a picture of the Queen and her husband Prince Phillip on its homepage.
It also highlights charities the royals have links with, including Dolen Cymru.
But when users try to access that organisation's site they are being confronted with hardcore porn instead.
The Sun has informed the palace and charity - which helps communities in Wales and Lesotho and of which Prince Harry is a patron - about the error.
The incorrect link appears to be an old domain which has since changed hands.
The African country is close to the Duke of Sussex's heart after he visited during his gap year in 2004, and he has hailed the charity's work as "quite invaluable".
The Wales-Lesotho charity began in 1985 and has developed educational links, wider young people's links, health, churches, women's organisations, and more, according to the royal site.
In 2018, royal.uk finally updated its biography for Meghan Markle months after she had married Harry that May to make specific mention to her previous acting career.
The profile initially made no mention of her seven-year stint on popular US legal drama series Suits in which she played paralegal Rachel Zane.
Instead, it referred to her time "filming in Toronto" before eventually changing it to flesh out the details of her time on the show.
The bio also ignored her lifestyle blog The Tig, though she did quickly close it following her engagement.
