- Release Notes and Announcements
- Release Notes
- Announcements
- Notification on Billing for Just-In-Time Transcoding of VOD
- 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
- How to Use EdgeOne to Distribute Content in VOD
- 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
- Domain Name Management 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
- Playlist APIs
- Data Types
- Error Codes
- FAQs
- Agreements
- VOD Policy
- Contact Us
- Glossary
- Release Notes and Announcements
- Release Notes
- Announcements
- Notification on Billing for Just-In-Time Transcoding of VOD
- 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
- How to Use EdgeOne to Distribute Content in VOD
- 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
- Domain Name Management 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
- 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. This infringes the copyright of the original website, which also has to bear the cost of additional CDN bandwidth or traffic usage.
VOD can prevent hotlinking based on referer or key.
Category | Feature | Description |
Referer hotlink protection | Address control based on the source of a request | The HTTP referer mechanism makes it possible to identify the source of a request through the referer field in the playback request header. You can add domain names to the blocklist or allowlist, based on which a CDN node will determine whether to allow or deny a playback request. |
Key hotlink protection | Access control based on URL validity | If you set a validity period for a video URL, the requested video can no longer be played after the URL expires. In this way, even if a video is hotlinked by another website, it will only be exploited for a limited time. |
| Access control based on IP count | You can specify the maximum number of viewers that can access a video URL. Devices that are not on the same private network generally have different public IPs. Therefore, you can limit the number of people who can play a video URL by specifying the maximum number of IP addresses allowed. In this way, even if a video URL is hotlinked by another website, it can only be played by a limited number of devices. |
| Access control based on playback duration | 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
Use case | Description |
Protecting 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. |
Preventing malicious video hosting | 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. |
How to Use
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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