| Code | Display | Definition |
| directlink | Click and see | When URL is clicked, the resource can be seen directly (by webpage or by download link format) |
| openapi | The URL is the RESTful or other kind of API that can access to the result. | When the API method (e.g. [base_url]/[parameter]) related with the URL of the website is executed, the resource can be seen directly (usually in JSON or XML format) |
| login | Result cannot be access unless an account is logged in | When logged into the website, the resource can be seen. |
| oauth | Result need to be fetched with API and need LOGIN( or cookies are required when visiting the link of resource) | When logged in and follow the API in the website related with URL, the resource can be seen. |
| other | Some other complicated or particular way to get resource from URL. | Some other complicated or particular way to get resource from URL. |
