# Getting Started with vCDN **Overview** vCDN currently provides 4 services as follows: * **Web Accelerator**: Use when you need to improve the loading speed of web resources (such as images, CSS, HTML5), optimize image capacity but still maintain image quality. * **Object Download**: Use to improve the download speed of static files and update files for your system * **VOD (Video on Demand)**: Use when there is a need to stream video. For example: Online movie streaming website * **Livestream**: Used for live presentation needs. For example: movies, sports, game shows, sales advertisements, etc. For regular Domectic (domestic) traffic, VNG currently does not guarantee speed for traffic from international sources. Customers can refer to the international vCDN service provided by GreenNode for the best quality with international traffic or contact for further instructions. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.vngcloud.vn/vng-cloud-document/vcdn/loai-hinh-dich-vu.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.