Zhang Hao Ya positions itself as an “overseas account purchase and account sale platform,” similar to an account card-code marketplace. The official homepage lists categories including Google, Microsoft mailboxes, Yahoo, other mailboxes, Facebook, Twitter, Instagram, Discord, TK, Telegram API SMS-code receiving, Telegram TDATA direct login, Apple ID, WhatsApp, AI platforms/ChatGPT, Google Voice, Amazon, YouTube, Steam, and other accounts.

The site states that delivery is instant: “instant delivery, no waiting,” and users who do not enter the download page after payment can use “Order Query” on the upper right of the homepage to download the card code. The homepage also says “all products support starting from 1 item,” and reminds users to “buy a small quantity for testing before bulk purchase.”

It is not an open-source self-hosted tool, and the provided material does not include deployment methods, server configuration, or resource requirements. Customer contact is mainly via Telegram, with stated manual customer service hours of 10:00–22:00. The site also reminds users to contact after-sales support within 24 hours from placing an order, and to download and back up card codes in advance because the server only saves them for 7 days.