1, Open Browser: Open your favorite browser, such as Chrome and Firefox.
2. Access to the health certificate inquiry website: access to the health certificate inquiry website in the browser, such as "China Health Supervision Network" or "National Health Service Platform".
3. Enter the website: After finding the corresponding health certificate inquiry website, click Enter the website.
4. Enter relevant information: enter your name, ID number, contact information and other information on the website query page, and click the "Query" button.
5. Test result: The system will display your health certificate information, including certificate number, validity period, medical examination hospital, etc.