Article in English: In order to find the link for a website's specific page, you must go to the page first. Tap or click the webpage's address at the top of the web browser. Doing this should highlight the address. To do so:   Mobile - Tap Copy when prompted. You may have to tap and hold the address or tap Select All first on some phones.  Desktop - Press Ctrl+C (Windows) or ⌘ Command+C (Mac) while the link is highlighted. You can post links in any text field (e.g., a status box on Facebook, a Microsoft Word document, your phone's messaging app, etc.). To do so:   Mobile - Tap and hold the text field, then tap Paste when prompted.  Desktop - Click the text field, then press Ctrl+V (Windows) or ⌘ Command+V (Mac). Once you've posted your link, tap or click it to make sure that it takes you to the correct location. The link will usually change color once it's ready to be selected.

Summary in Vietnamese:
Đi đến trang web mà bạn cần lấy địa chỉ. Chọn địa chỉ trang web. Sao chép địa chỉ bằng cách: Tìm một nơi để dán liên kết. Dán liên kết bằng cách: Kiểm tra liên kết.