HTTPS secure acceleration

Function Description Default 
HTTPS secure acceleration Provides a full link HTTPS secure acceleration scheme, just upload the CDN domain name certificate/private key after you activate secure acceleration mode, and supports viewing, disabling, enabling, editing of certificates. Disabled
Force redirect When the "HTTPS secure acceleration" is enabled, the CDN domain name supports custom settings, and redirect the user's original request in a forcible way.  Disabled

Back-to-source settings

Function Description Default 
Back-to-source  host Specifies the host domain name that a CDN node accesses in the back-to-source process. Three options are available: CDN domain name, original site domain name, and custom domain name. CDN domain name
Back-to-source with the same protocol Back-to-source requests for resources use exactly the same protocol as used by the client to request the resources. Disabled

Cache settings

Function Description Default  
Cache expiration time Customizes cache expiration rules for specified resources. Disabled
Setting the HTTP Request Header Sets an HTTP request header. Nine parameters are currently available for HTTP request header customization. Disabled
Custom 404 page Available in three options: default 404, public welfare 404, custom 404 Default 404 page

Access control

Function Description Default  
Anti-leech Configures a referer blacklist or whitelist to identify and filter visitors. Disabled
URL authentication Uses URL authentication methods to protect resources on an origin site. Disabled
IP blacklist Configures the access IP blacklist to identify and filter visitors.  Disabled

Performance optimization

Function Description Default 
Page optimization Compresses and removes useless blank lines and carriage return characters to effectively reduce the page size. Disabled
Smart compression Supports smart compression for content in multiple formats to effectively reduce the size of user transmitted content. Disabled
Filter parameter Removes parameters after ? in a URL request   during the back-to-source process. Disabled

Video-related settings

Function Description Default 
Back-to-source of range Allows a user to notify an origin site server to return partial content within a specified range. This function helps with accelerated delivery of large files. Disabled
Drag/drop playback Enables random drag or drop playback in a video or audio on-demand scenario. Disabled
Notify_URL  【Applicable to Live】Real-time information callback of stream status, promptly notifies users about the operation results of streaming or stream disconnection. Disabled

Other settings

Function Description Default 
Set httpDNS Provides a DNS service by using the HTTP protocol to directly access the server of Alibaba Cloud CDN. Disabled