- Release Notes and Announcements
- Release Notes
- Announcements
- Announcement on the Official Launch of the VOD Scene Transcoding Feature
- Announcement about the addition of mobile player SDK premium features authorization verification
- Announcement about the addition of web player SDK license authorization verification
- Announcement on the Official Launch of the Video on Demand Real-Time Log Analysis Feature
- Notice about the adjustment of the VOD adding domain feature
- Announcement on official commercial billing of Video on Demand STANDARD_IA data retrieval and Application Management functions
- Announcement on the Official Launch of the Media Quality Inspection and Play Channel Features
- Announcement on the official launch of the Video-on-Demand QUIC Acceleration feature
- VOD Launched Remaster Feature
- Prepaid Packages Supported for Monthly Billed Accounts
- Cost Allocation by Tag Supported
- Content Moderation Upgraded
- VOD Player Signature Upgrade
- Live Clipping to Become Paid Feature
- Content Recognition to Become Paid Feature
- The “startPlay” API of the Player SDK Renamed
- TESHD Renamed as TSC
- Announcement on VOD Video Acceleration Price Change
- Launching Video on Demand (VOD) Features for Regions Outside the Chinese Mainland
- About Changing the Billing Rule of Transcoding Service for VOD/MPS
- Product Introduction
- Purchase Guide
- Getting Started
- Console Guide
- Console Overview
- Service Overview
- Application Management
- Media Management
- Package Management
- License Management
- Real-Time Log Analysis
- Practical Tutorial
- Media Upload
- Smart Cold Storage of VOD Media Asset Files
- Video Processing
- Distribution and Playback
- How to Receive Event Notification
- How to Migrate Files from Origin Server to VOD
- Live Recording
- How to Make VOD Videos Live Streaming-Like
- Using VOD and WordPress to Build a Website
- How to Pull from Custom Origin Servers
- Development Guide
- Player SDK
- Server APIs
- History
- Introduction
- API Category
- Other APIs
- Media processing related API
- No longer recommended APIs
- Task Management APIs
- Media Upload APIs
- Media Management APIs
- Event Notification Relevant API
- Media Categorization APIs
- Distribution APIs
- AI-based Sample Management APIs
- Region Management APIs
- Statistics APIs
- Just In Time Transcode APIs
- Making API Requests
- AI-based image processing APIs
- Parameter Template APIs
- CreateWatermarkTemplate
- CreateSnapshotByTimeOffsetTemplate
- CreateSampleSnapshotTemplate
- CreateImageSpriteTemplate
- CreateAnimatedGraphicsTemplate
- CreateAdaptiveDynamicStreamingTemplate
- CreateAIAnalysisTemplate
- ModifyWatermarkTemplate
- ModifySnapshotByTimeOffsetTemplate
- ModifySampleSnapshotTemplate
- ModifyImageSpriteTemplate
- ModifyAnimatedGraphicsTemplate
- ModifyAdaptiveDynamicStreamingTemplate
- ModifyAIAnalysisTemplate
- DescribeTranscodeTemplates
- DescribeWatermarkTemplates
- ModifyAIRecognitionTemplate
- DescribeSnapshotByTimeOffsetTemplates
- DescribeSampleSnapshotTemplates
- DescribeImageSpriteTemplates
- DescribeAnimatedGraphicsTemplates
- DescribeAdaptiveDynamicStreamingTemplates
- DescribeAIAnalysisTemplates
- DeleteTranscodeTemplate
- DescribeAIRecognitionTemplates
- DeleteWatermarkTemplate
- DeleteSnapshotByTimeOffsetTemplate
- DeleteSampleSnapshotTemplate
- DeleteImageSpriteTemplate
- DeleteAnimatedGraphicsTemplate
- DeleteAdaptiveDynamicStreamingTemplate
- DeleteReviewTemplate
- DeleteAIRecognitionTemplate
- DeleteAIAnalysisTemplate
- DeleteHeadTailTemplate
- DeleteImageProcessingTemplate
- DescribeReviewTemplates
- CreateReviewTemplate
- CreateTranscodeTemplate
- ModifyReviewTemplate
- ModifyTranscodeTemplate
- CreateHeadTailTemplate
- CreateImageProcessingTemplate
- CreateAIRecognitionTemplate
- DescribeHeadTailTemplates
- DescribeImageProcessingTemplates
- ModifyHeadTailTemplate
- CreateQualityInspectTemplate
- DeleteQualityInspectTemplate
- DescribeQualityInspectTemplates
- ModifyQualityInspectTemplate
- CreateEnhanceMediaTemplate
- DeleteEnhanceMediaTemplate
- ModifyEnhanceMediaTemplate
- DescribeEnhanceMediaTemplates
- Task Flow APIs
- Domain Name Management APIs
- Playlist APIs
- Data Types
- Error Codes
- FAQs
- Agreements
- VOD Policy
- Contact Us
- Glossary
- Release Notes and Announcements
- Release Notes
- Announcements
- Announcement on the Official Launch of the VOD Scene Transcoding Feature
- Announcement about the addition of mobile player SDK premium features authorization verification
- Announcement about the addition of web player SDK license authorization verification
- Announcement on the Official Launch of the Video on Demand Real-Time Log Analysis Feature
- Notice about the adjustment of the VOD adding domain feature
- Announcement on official commercial billing of Video on Demand STANDARD_IA data retrieval and Application Management functions
- Announcement on the Official Launch of the Media Quality Inspection and Play Channel Features
- Announcement on the official launch of the Video-on-Demand QUIC Acceleration feature
- VOD Launched Remaster Feature
- Prepaid Packages Supported for Monthly Billed Accounts
- Cost Allocation by Tag Supported
- Content Moderation Upgraded
- VOD Player Signature Upgrade
- Live Clipping to Become Paid Feature
- Content Recognition to Become Paid Feature
- The “startPlay” API of the Player SDK Renamed
- TESHD Renamed as TSC
- Announcement on VOD Video Acceleration Price Change
- Launching Video on Demand (VOD) Features for Regions Outside the Chinese Mainland
- About Changing the Billing Rule of Transcoding Service for VOD/MPS
- Product Introduction
- Purchase Guide
- Getting Started
- Console Guide
- Console Overview
- Service Overview
- Application Management
- Media Management
- Package Management
- License Management
- Real-Time Log Analysis
- Practical Tutorial
- Media Upload
- Smart Cold Storage of VOD Media Asset Files
- Video Processing
- Distribution and Playback
- How to Receive Event Notification
- How to Migrate Files from Origin Server to VOD
- Live Recording
- How to Make VOD Videos Live Streaming-Like
- Using VOD and WordPress to Build a Website
- How to Pull from Custom Origin Servers
- Development Guide
- Player SDK
- Server APIs
- History
- Introduction
- API Category
- Other APIs
- Media processing related API
- No longer recommended APIs
- Task Management APIs
- Media Upload APIs
- Media Management APIs
- Event Notification Relevant API
- Media Categorization APIs
- Distribution APIs
- AI-based Sample Management APIs
- Region Management APIs
- Statistics APIs
- Just In Time Transcode APIs
- Making API Requests
- AI-based image processing APIs
- Parameter Template APIs
- CreateWatermarkTemplate
- CreateSnapshotByTimeOffsetTemplate
- CreateSampleSnapshotTemplate
- CreateImageSpriteTemplate
- CreateAnimatedGraphicsTemplate
- CreateAdaptiveDynamicStreamingTemplate
- CreateAIAnalysisTemplate
- ModifyWatermarkTemplate
- ModifySnapshotByTimeOffsetTemplate
- ModifySampleSnapshotTemplate
- ModifyImageSpriteTemplate
- ModifyAnimatedGraphicsTemplate
- ModifyAdaptiveDynamicStreamingTemplate
- ModifyAIAnalysisTemplate
- DescribeTranscodeTemplates
- DescribeWatermarkTemplates
- ModifyAIRecognitionTemplate
- DescribeSnapshotByTimeOffsetTemplates
- DescribeSampleSnapshotTemplates
- DescribeImageSpriteTemplates
- DescribeAnimatedGraphicsTemplates
- DescribeAdaptiveDynamicStreamingTemplates
- DescribeAIAnalysisTemplates
- DeleteTranscodeTemplate
- DescribeAIRecognitionTemplates
- DeleteWatermarkTemplate
- DeleteSnapshotByTimeOffsetTemplate
- DeleteSampleSnapshotTemplate
- DeleteImageSpriteTemplate
- DeleteAnimatedGraphicsTemplate
- DeleteAdaptiveDynamicStreamingTemplate
- DeleteReviewTemplate
- DeleteAIRecognitionTemplate
- DeleteAIAnalysisTemplate
- DeleteHeadTailTemplate
- DeleteImageProcessingTemplate
- DescribeReviewTemplates
- CreateReviewTemplate
- CreateTranscodeTemplate
- ModifyReviewTemplate
- ModifyTranscodeTemplate
- CreateHeadTailTemplate
- CreateImageProcessingTemplate
- CreateAIRecognitionTemplate
- DescribeHeadTailTemplates
- DescribeImageProcessingTemplates
- ModifyHeadTailTemplate
- CreateQualityInspectTemplate
- DeleteQualityInspectTemplate
- DescribeQualityInspectTemplates
- ModifyQualityInspectTemplate
- CreateEnhanceMediaTemplate
- DeleteEnhanceMediaTemplate
- ModifyEnhanceMediaTemplate
- DescribeEnhanceMediaTemplates
- Task Flow APIs
- Domain Name Management APIs
- Playlist APIs
- Data Types
- Error Codes
- FAQs
- Agreements
- VOD Policy
- Contact Us
- Glossary
Overview
Hotlinking refers to a media playback URL from one site being added to another site where it can be played back by non-authorized viewers. It not only threatens the security of copyrighted media but also consumes the CDN bandwidth and traffic of the victim.
VOD hotlink protection can prevent hotlinking based on referer and key.
| Category | Feature | Description |
|---|---|---|
| Source page address control | The referer mechanism based on HTTP identifies the request source through the referer field in the playback request header. You can add specified domain names to a blocklist or allowlist, based on which the CDN node will authenticate to allow or deny the playback requests accordingly. | |
| URL validity period control | You can specify the expiration time of a video URL. When the requested video URL expires, the video can no longer be played back. In this way, you can set a validity period for the video URL to prevent malicious users from transferring the URL to other websites for long-term use. | |
| Viewer count control | You can specify the number of viewers that can access the video URL. Devices that are not on the same private network generally have different public IPs. You can specify how many viewers are allowed to access a URL by limiting the number of IPs allowed for playback on the URL. This helps prevent unlimited unauthorized viewing if a video URL is maliciously transferred to other websites. | |
| Video playback duration control | You can specify the preview duration in a video URL (for example, the first five minutes of a video) to implement preview for non-paying users. |
Use cases
| Scenario | Description |
|---|---|
| Protection for proprietary videos | Some video providers want to make their high-value videos playable only on their own platforms. In this case, they can use referer and key hotlink protection to prevent video links from being stolen by others and played back on other platforms. |
| Malicious video hosting prevention | On UGC platforms, malicious users may upload videos irrelevant to the platform’s topic and deliver them by using the platform links, essentially using the platform as a free video hosting service. You can use hotlink protection to prevent this problem. For detailed directions, see How to Prevent Malicious Video Hosting. |
| Video previews | Key hotlink protection allows you to implement video previews, so users can view a several minute-long preview of a video before they pay for the full video. |
Directions
- For detailed directions on referer hotlink protection, see Referer Hotlink Protection.
- For detailed directions on key hotlink protection, see Key Hotlink Protection.
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