# Pricing ## Overview **The vCDN** system supports both types of users: 1. **Prepaid users** : Customers purchase **Traffic** capacity in advance and use it according to the purchased amount. 2. **Postpaid users** : Customers use the service in advance and pay based on consumption at the end of the period. *** ## Traffic Package ### **Prepaid users** When purchasing **Traffic** , you can choose: * **Group Type** : Select package usage period ( **3 months, 6 months or 12 months** ). * **Traffic Type** : Traffic Type: * **Domestic** : Domestic traffic. * **International** : International traffic. * **Package Traffic** : Desired **Traffic** capacity . {% hint style="info" %} **Note:** * If you select **Traffic type = Domestic** , up to **20% of traffic** can be used for **international** . * For example: Domestic package 50000GB → 10000GB is allowed for International. * **When you use up all the Traffic** : * **Domestic : Extra Domestic** can be purchased , duration depends on the duration of the main package. * **International : Extra International** can be purchased with the same duration. * If you select **Traffic type = International** , this traffic can be used for both **Domestic and International.** * Each account can only apply **1 main package at a time but can buy many extra packages.** * The system supports **traffic aggregation** if you change packages. {% endhint %} ### **Postpaid users** * The system will count **monthly traffic consumption** and calculate payment costs at the end of the month. ## **Accelerator Package** Customers can purchase packages according to features such as: * **Basic** , **Standard** , **Pro** , and **Enterprise** . * These packages apply to **Web Accelerator** service only . **LIST OF WEB ACCELERATOR FEATURES**
FeaturesDescribeBasicStandardProEnterprise
Enable HTTP2Enable/disable HTTP/2 supportSupportedSupportedSupportedSupported
CDNNumber of CDNs that can be created13520
Multi CNAMESupport customers to fill in multiple domains to use services on each CDN3510
SSL CertificateSupport customers to upload SSL to use the service50505050
Image Optimization

Automatically optimize images on customer websites:

- If the image quality is high, it will automatically reduce to 1080p or equal to the vertical size of the device screen (<1080);

- Image quality: Automatically compresses images to 60% for PC, 50% for Tablet and 30% for mobile;

**With browsers that support WebP image format => Automatically convert images to WebP to reduce capacity and increase page loading speed.

SupportedSupported
Auto zoom outAutomatically optimize Javascript, CSS, HTMl segments on customer's website.SupportedSupportedSupportedSupported
Load BalancingSupport LB Origin Servers in the pool to distribute requests reasonably, supported LB Algorithms: Weight RoundRobin, Least Connected, IP Hashing.3 (ips)5 (ips)50 (ips)
HSTS SupportHSTS SupportSupportedSupportedSupportedSupported
HTTPS SupportAutomatically rewrite homepage from http -> httpsSupportedSupportedSupportedSupported
Automatic HTTPS RewritesSupport rewriting http urls to https automatically in page contentSupportedSupportedSupported
TLS 1.3: Support TLS Version 1.3Support for selecting the lowest TLS version that can be supportedSupportedSupportedSupportedSupported
Brotli CompressionPage compression option reduces size for supported devicesSupportedSupportedSupported
CacheOption to cache response results from originSupportedSupportedSupportedSupported
Development ModeEnable no-cache mode across servicesSupportedSupportedSupported
Cache BrowserBrowser Cache TimeSupportedSupportedSupportedSupported
Cache Edge TTLCache Time on Edge>3 days>1 day>12 rolls>30 minutes
Purge CacheTool to help delete cached content on CDN system5 times/day20 times/day50 times/day1000 times/day
Page RulesPage rule options to adjust cache, quality, size, image format1 rule3 rules5 rules100 rules
StatisticalStatistical reportSupportedSupportedSupportedSupported
## **Steps to follow** Instructions for purchasing and using Traffic on vCDN Portal **Step 1** : Access vCDN Portal at [https://vcdn.vngcloud.vn](https://vcdn.vngcloud.vn/) . **Step 2** : Select **Package** or **Buy More Traffic . The vCDN Billing** screen will appear.
**Step 3** : Select **the Accelerator Package** and **Period** you want. Click **Confirm** to continue.
**Step 4** : Continue to perform according to the conditions: * **For prepaid customers** : select usage time and desired **Traffic Package** * **For postpaid customers** : no need to choose Traffic package, can use immediately and pay at the end of the month. * After selecting a package (if any), click **Confirm** .
**Step 5** : In **Payment Details** , check the selected service packages again. If the information is correct, select **Payment Confirm** to complete.
**Step 6 : At the Payment Confirm** screen , select **Continue** . Follow the payment instructions.
**Step 7:** Once completed, you can check your payment and consumption information in **Pay/Consume History** . --- # 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/huong-dan-mua-hang.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.