You can query your own real estate information through the following channels: Real Estate official website, where you can query your own real estate information. In the United States, you can check the official websites of homeowners' associations and realtors' associations. In China, you can query real estate information websites, such as SouFun, Anjuke and Fangtianxia. To query real estate related information, you can also use the following channels:

1. Real estate agent: If you want to buy or sell real estate, you can contact the real estate agent, who will provide inquiry service. In China, real estate agents usually have some websites or applications that can query real estate information.

2. Real estate mortgage company: If you want to know whether you have real estate mortgage, you can contact the real estate mortgage company. They will provide consulting services and tell you whether there is a mortgage on the property.

3. Social media: Social media platforms such as Facebook, Twitter and Instagram also provide real estate information query functions. Sometimes, real estate agents post real estate information on social media.

Please note that when inquiring about real estate information, you may encounter some restrictions, such as the need to provide identification and contact the developer or landlord.