"Kami harus mengganti judul halaman di situs mereka."

Translation: We have to change the page's title on their site.

[Ria___]

More commonly in the web industry it is referred to as a "page title", so I believe that "page title" should also be accepted.

[donny309620]

Or "title page".

[dieprinzessin]

wasn't halaman a yard?
Interesting expression for a web page...