- Release Notes and Announcements
- CLB Release Notes
- [April 15, 2024] Domain Name Upgrade for Domain Name-based Public Network CLB
- [July 25, 2023] Adding Rate Limits on Shared CLB Instances
- [July 3, 2023] CLB API Authentication Upgrade
- [June 9, 2023] Adjusting the Grace Period for Pay-as-you-go CLB Instances
- [March 6, 2023] Launching Domain Name-Based Public CLBs
- [Feb. 24, 2023] Changing Health Check Source IP to 100.64.0.0/10 IP Range
- Product Introduction
- Purchase Guide
- Getting Started
- Directions
- CLB Instance
- Directions for Upgrading to Domain Name-Based CLB
- Creating CLB Instances
- Creating an IPv6 CLB Instance
- Creating IPv6 NAT64 CLB Instances
- Configure CLB Forwarding Domain Name
- Configuring CLB Security Group
- Binding Private Network CLB to EIP
- Enabling or Disabling a CLB Instance
- Cloning CLB Instances
- Exporting CLB Instances
- Upgrade to a LCU-supported instances
- Adjusting Specification of LCU-supported CLBs
- Deleting CLB Instances
- Releasing Idle CLB Instances
- Configuring Deletion Protection
- Adjusting Instance Public Network Configurations
- CLB Listener
- CLB Listener Overview
- Configuring TCP Listener
- Configuring a UDP Listener
- Configuring TCP SSL Listener
- Configuring a QUIC Listener
- Configuring an HTTP Listener
- Configuring HTTPS Listener
- Load Balancing Methods
- Session Persistence
- Layer-7 Redirection Configuration
- Layer-7 Custom Configuration
- Layer-7 Domain Name Forwarding and URL Rules
- Using QUIC Protocol on CLB
- SNI Support for Binding Multiple Certificates to a CLB Instance
- Configuring gRPC Support for Layer-7 Protocols
- Real Server
- Health Check
- Certificate Management
- Log Management
- Monitoring and Alarm
- Cloud Access Management
- Classic CLB
- CLB Instance
- Practical Tutorial
- Enabling Gzip Compression & Testing
- HTTPS Forwarding Configurations
- Obtaining Real Client IPs
- Best Practices for Configuring Load Balancing Monitoring Alerts
- Implementing HA Across Multiple AZs
- Load Balancing Algorithm Selection and Weight Configuration Examples
- Configuring WAF protection for CLB listening domain names
- Configure IAP to authenticate web access to the CLB domain and path
- Configure IAP to authenticate programmatic access to CLB's domain and path
- Ops Guide
- Troubleshooting
- API Documentation
- History
- Introduction
- API Category
- Instance APIs
- Listener APIs
- Backend Service APIs
- Target Group APIs
- Redirection APIs
- Other APIs
- DescribeClsLogSet
- CreateLoadBalancerSnatIps
- DeleteLoadBalancerSnatIps
- DescribeLoadBalancerListByCertId
- DescribeQuota
- ModifyLoadBalancersProject
- ReplaceCertForLoadBalancers
- SetLoadBalancerClsLog
- SetLoadBalancerSecurityGroups
- SetLoadBalancerStartStatus
- SetSecurityGroupForLoadbalancers
- CreateClsLogSet
- CreateTopic
- DescribeLoadBalancerTraffic
- DescribeResources
- DescribeTaskStatus
- InquiryPriceCreateLoadBalancer
- InquiryPriceModifyLoadBalancer
- InquiryPriceRenewLoadBalancer
- Classic CLB APIs
- Making API Requests
- Load Balancing APIs
- Data Types
- Error Codes
- CLB API 2017
- FAQs
- Service Level Agreement
- Contact Us
- Glossary
- Release Notes and Announcements
- CLB Release Notes
- [April 15, 2024] Domain Name Upgrade for Domain Name-based Public Network CLB
- [July 25, 2023] Adding Rate Limits on Shared CLB Instances
- [July 3, 2023] CLB API Authentication Upgrade
- [June 9, 2023] Adjusting the Grace Period for Pay-as-you-go CLB Instances
- [March 6, 2023] Launching Domain Name-Based Public CLBs
- [Feb. 24, 2023] Changing Health Check Source IP to 100.64.0.0/10 IP Range
- Product Introduction
- Purchase Guide
- Getting Started
- Directions
- CLB Instance
- Directions for Upgrading to Domain Name-Based CLB
- Creating CLB Instances
- Creating an IPv6 CLB Instance
- Creating IPv6 NAT64 CLB Instances
- Configure CLB Forwarding Domain Name
- Configuring CLB Security Group
- Binding Private Network CLB to EIP
- Enabling or Disabling a CLB Instance
- Cloning CLB Instances
- Exporting CLB Instances
- Upgrade to a LCU-supported instances
- Adjusting Specification of LCU-supported CLBs
- Deleting CLB Instances
- Releasing Idle CLB Instances
- Configuring Deletion Protection
- Adjusting Instance Public Network Configurations
- CLB Listener
- CLB Listener Overview
- Configuring TCP Listener
- Configuring a UDP Listener
- Configuring TCP SSL Listener
- Configuring a QUIC Listener
- Configuring an HTTP Listener
- Configuring HTTPS Listener
- Load Balancing Methods
- Session Persistence
- Layer-7 Redirection Configuration
- Layer-7 Custom Configuration
- Layer-7 Domain Name Forwarding and URL Rules
- Using QUIC Protocol on CLB
- SNI Support for Binding Multiple Certificates to a CLB Instance
- Configuring gRPC Support for Layer-7 Protocols
- Real Server
- Health Check
- Certificate Management
- Log Management
- Monitoring and Alarm
- Cloud Access Management
- Classic CLB
- CLB Instance
- Practical Tutorial
- Enabling Gzip Compression & Testing
- HTTPS Forwarding Configurations
- Obtaining Real Client IPs
- Best Practices for Configuring Load Balancing Monitoring Alerts
- Implementing HA Across Multiple AZs
- Load Balancing Algorithm Selection and Weight Configuration Examples
- Configuring WAF protection for CLB listening domain names
- Configure IAP to authenticate web access to the CLB domain and path
- Configure IAP to authenticate programmatic access to CLB's domain and path
- Ops Guide
- Troubleshooting
- API Documentation
- History
- Introduction
- API Category
- Instance APIs
- Listener APIs
- Backend Service APIs
- Target Group APIs
- Redirection APIs
- Other APIs
- DescribeClsLogSet
- CreateLoadBalancerSnatIps
- DeleteLoadBalancerSnatIps
- DescribeLoadBalancerListByCertId
- DescribeQuota
- ModifyLoadBalancersProject
- ReplaceCertForLoadBalancers
- SetLoadBalancerClsLog
- SetLoadBalancerSecurityGroups
- SetLoadBalancerStartStatus
- SetSecurityGroupForLoadbalancers
- CreateClsLogSet
- CreateTopic
- DescribeLoadBalancerTraffic
- DescribeResources
- DescribeTaskStatus
- InquiryPriceCreateLoadBalancer
- InquiryPriceModifyLoadBalancer
- InquiryPriceRenewLoadBalancer
- Classic CLB APIs
- Making API Requests
- Load Balancing APIs
- Data Types
- Error Codes
- CLB API 2017
- FAQs
- Service Level Agreement
- Contact Us
- Glossary
For public network CLB instances or CLB instances with a static public IP address, Gzip compression is enabled for the HTTP and HTTPS protocols by default. Gzip compresses website files before they are sent to the client browser. This effectively reduces the data volume in network transmission and speeds up webpage loading on the client browser. When using this feature, pay attention to the following:
Must-knows
You must also enable Gzip compression on the backend CVM instances of CLB.
For common Nginx service containers, you must enable Gzip compression in their configuration files (nginx.conf by default) and restart the service.
gzip on;
Currently, CLB supports the following file types. You can use
gzip_types to specify the file types for compression.application/atom+xml application/javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component;
Note:
You must enable Gzip compression for the above file types in the business software of the backend CVM instances of CLB.
The client requests must carry the compression request identifier.
To enable Gzip compression, the client requests must carry the following identifier:
Accept-Encoding: gzip,deflate,sdch
Example of enabling Gzip compression on CVM instances
Example of CVM runtime environment: Debian 6
1. Use Vim to open the Nginx configuration file in the user path:
vim /etc/nginx/nginx.conf
2. Find the following code:
gzip on;gzip_min_length 1k;gzip_buffers 4 16k;gzip_http_version 1.1;gzip_comp_level 2;gzip_types text/html application/json;
Description of the above code syntax:
gzip: specifies whether to enable or disable the Gzip module.
Syntax:
gzip on/off
Scopes: http, server, locationgzip_min_length: specifies the minimum number of bytes that a page can be compressed to. The number of bytes can be obtained from
Content-Length in the HTTP header. The default value is 1k.
Syntax: gzip_min_length length
Scopes: http, server, locationgzip_buffers: specifies the unit of buffer for storing the data stream of the Gzip compression result. 16k means 16k is used as the unit, and a size of memory that is 4 times the original data size (in 16k) will be applied for.
Syntax:
gzip_buffers number size
Scopes: http, server, locationgzip_http_version: specifies the lowest HTTP version that can use Gzip. Value HTTP/1.0 means the lowest HTTP version that needs Gzip is 1.0, so Gzip can be compatible with HTTP/1.1 or higher. You do not need to change the parameter value since Tencent Cloud supports HTTP/1.1 across the entire network.
Syntax:
gzip_http_version 1.0 | 1.1;
Scopes: http, server, locationgzip_comp_level: specifies the Gzip compression ratio with a value range of 1–9. Value 1 is the smallest compression ratio with the fastest processing speed, while value 9 is the greatest compression ratio with the slowest processing speed (fast transmission with high CPU consumption).
Syntax:
gzip_comp_level 1..9
Scopes: http, server, locationgzip_types: specifies the Multipurpose Internet Mail Extensions (MIME) types for compression. The "text/html" type will be compressed by default. In addition, Gzip for Nginx does not compress static resource files such as JavaScript files and images by default. You can configure gzip_types to specify MIME types to be compressed. Types that are not specified will not be compressed. For example, to compress data in JSON format, you need to add application/json to the parameter value.
The supported types are below:
text/html text/plain text/css application/x-javascript text/javascript application/xml
Syntax:
gzip_types mime-type [mime-type ...]
Scopes: http, server, location3. To modify the configuration, save and exit the file, enter the Nginx bin file directory, and run the following command to reload Nginx:
./nginx -s reload
4. Use the following curl command to test whether Gzip compression is enabled:
curl -I -H "Accept-Encoding: gzip, deflate" "http://cloud.tencent.com/example/"
If a result is returned, Gzip compression is enabled.
If no result is returned, Gzip compression is not enabled.
Yes
No
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