Regions
Region refers to the distribution region of Tencent Cloud Hosted Data Centers. Data in Cloud Object Storage (COS) is stored in buckets within these regions. Through COS, you can perform multi-region storage. Typically, COS recommends you select the region closest to your business to create a bucket, meeting low delay, low cost, and compliance requirements.
For example, if your business is in the South China region, then creating a bucket in the Guangzhou region can further improve object upload and download speed.
Default Domain Name
The default domain name refers to the COS default bucket domain name, which is automatically generated by the system based on bucket name and region when a user creates a bucket. Buckets in different regions have different default domain names. For more information, see the following table.
Note:
For region information supported by previous versions, please refer to the Historical Version Region List.
The networks between finance cloud regions and public cloud regions are not interconnected.
Chinese mainland
Regions | | | Abbreviation | Default Domain Name (Upload/Download/Management) |
Chinese mainland | All regions | Beijing Zone 1 (sold out) | ap-beijing-1 | <BucketName-APPID>.cos.ap-beijing-1.myqcloud.com |
| | Beijing | ap-beijing | <BucketName-APPID>.cos.ap-beijing.myqcloud.com |
| | Nanjing | ap-nanjing | <BucketName-APPID>.cos.ap-nanjing.myqcloud.com |
| | Shanghai | ap-shanghai | <BucketName-APPID>.cos.ap-shanghai.myqcloud.com |
| | Guangzhou | ap-guangzhou | <BucketName-APPID>.cos.ap-guangzhou.myqcloud.com |
| | Chengdu | ap-chengdu | <BucketName-APPID>.cos.ap-chengdu.myqcloud.com |
| | Chongqing | ap-chongqing | <BucketName-APPID>.cos.ap-chongqing.myqcloud.com |
| Finance cloud regions | Shenzhen Finance | ap-shenzhen-fsi | <BucketName-APPID>.cos.ap-shenzhen-fsi.myqcloud.com |
| | Shanghai Finance | ap-shanghai-fsi | <BucketName-APPID>.cos.ap-shanghai-fsi.myqcloud.com |
| | Beijing Finance | ap-beijing-fsi | <BucketName-APPID>.cos.ap-beijing-fsi.myqcloud.com |
Regions in Hong Kong (China) and Outside the Chinese Mainland
Regions | | | Abbreviation | Default Domain Name (Upload/Download/Management) |
Asia Pacific | All regions | Hong Kong (China) | ap-hongkong | <BucketName-APPID>.cos.ap-hongkong.myqcloud.com |
| | Singapore | ap-singapore | <BucketName-APPID>.cos.ap-singapore.myqcloud.com |
| | Jakarta | ap-jakarta | <BucketName-APPID>.cos.ap-jakarta.myqcloud.com |
| | Seoul | ap-seoul | <BucketName-APPID>.cos.ap-seoul.myqcloud.com |
| | Bangkok | ap-bangkok | <BucketName-APPID>.cos.ap-bangkok.myqcloud.com |
| | Tokyo | ap-tokyo | <BucketName-APPID>.cos.ap-tokyo.myqcloud.com |
Middle East | | Riyadh | me-saudi-arabia | <BucketName-APPID>.cos.me-saudi-arabia.myqcloud.com |
North America | | Silicon Valley (US West) | na-siliconvalley | <BucketName-APPID>.cos.na-siliconvalley.myqcloud.com |
| | Virginia (US East) | na-ashburn | <BucketName-APPID>.cos.na-ashburn.myqcloud.com |
South America | | Sao Paulo | sa-saopaulo | <BucketName-APPID>.cos.sa-saopaulo.myqcloud.com |
Europe | | Frankfurt | eu-frankfurt | <BucketName-APPID>.cos.eu-frankfurt.myqcloud.com |
Default Domain Usage Example
Assume that you have logged in to COS console as the root account (
APPID is 1250000000) and created a bucket named examplebucket in the Guangzhou region, the default endpoint of the bucket will be:examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com
Note:
examplebucket-1250000000: This indicates that the storage bucket belongs to a user with an APPID of 1250000000. The APPID is assigned to your account automatically upon successful registration with Tencent Cloud and is fixed and unique. You can view it in the Account Information section.
COS: Cloud Object Storage (COS)
ap-guangzhou: abbreviation of the bucket region
myqcloud.com: endpoint of Tencent Cloud, fixed
If you store an image (picture.jpg) to the created bucket, the access URL of the image will be:
examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com/picture.jpg
Note:
If you have set the access permission of your image to public read and private write, you can copy the image access URL and paste it in the browser to view the image details.
To replace the default domain name of a storage bucket with your own custom domain, please refer to Enabling Custom Origin Domain Name.
To use your own domain name for accelerated access to COS resources, you can enable CDN acceleration for your domain name. Please refer to Enabling Custom CDN Acceleration Domain Name.
Global acceleration domain name
Tencent Cloud Object Storage (COS) global acceleration feature utilizes Tencent's global traffic scheduling load balancing system to intelligently route user requests, selecting the optimal network access link, and achieving nearby access for requests, accelerating data upload and download. For an introduction and usage examples of global acceleration domain names, please refer to Global Acceleration Overview and Intranet Global Acceleration.
The global acceleration domain name format is as follows:
<BucketName-APPID>.cos.accelerate.myqcloud.com.The internal global acceleration domain name format is:
<BucketName-APPID>.cos-internal.accelerate.tencentcos.cn.Private Network and Public Network Access
On Cloud Virtual Machines (CVM), accessing files through the COS default domain allows for private network access within the same region. In this case, uploading and downloading files generate private network traffic without incurring traffic fees. However, charges for the number of requests still apply.
If you deploy a CVM service in Tencent Cloud for private network access to COS, first ensure that the CVM and COS bucket are in the same region. Then, use the
nslookup command on the CVM to resolve the COS domain name. If it returns a private IP, it indicates that the CVM and COS are accessed via the private network; otherwise, it is public network access. For more information on private and public network access, please refer to the Creating Requests Overview documentation.If your Tencent Cloud CVM service is deployed in a region different from the COS bucket's region but within the scope of COS available regions, you can access files through the COS private network global acceleration domain, enabling cross-region access between CVM and COS. For more information, see Private Network Global Acceleration.