Is your valuable content being used online without authorization?
With over 16 years of experience, Sentinel provides global copyright protection.
Protecting Your Content Worldwide
About Us
Sentinel was founded in the San Francisco Bay Area, California, USA, to protect the copyrights of books, academic works, manga, videos, and images from online piracy.
Based on accumulated data, we continuously monitor suspicious websites and social media through a combination of automated crawling and manual verification.
Once infringement is confirmed, we submit takedown requests in compliance with the U.S. Digital Millennium Copyright Act (DMCA), supporting the protection of our clients’ rights on a global scale.
Mission
In recent years, infringing content has become easily accessible across borders and languages via the internet, impacting the entire content industry.
Copyright infringement takes various forms, including organized piracy sites operated for profit, as well as unauthorized sharing carried out without clear awareness of infringement. Both undermine the legitimate interests of rights holders.
Sentinel is committed not only to removing illegal content but also to maintaining an environment in which intellectual property is properly protected.
Why Us
Based in the United States, we carry out actions under DMCA-compliant procedures to address platforms, hosting providers, social media services, and search engines.
01
By blocking access to infringing content through search engine delisting, we help prevent further distribution and reduce advertising revenue streams, even in cases where direct takedown is not possible.
02
We participate in Google’s Trusted Copyright Removal Program (TCRP), enabling rapid response through dedicated tools, with a particular focus on early action for newly released and latest content.
03
Leveraging years of experience and accumulated data, we combine automated crawling with manual verification to achieve highly accurate infringement identification.
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Through continuous monitoring and response, we also work to prevent recurrence.
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Solutions
Monitoring | Removal | Blocking
We address copyright infringement through three structured approaches.
Service
We provide continuous and comprehensive protection of intellectual property in the digital environment.
Our process is structured into six clearly defined steps.
01
Investigation
In addition to automated crawling, our experienced team conducts investigations across multiple languages.
02
Infringement Identification
We carefully verify whether content constitutes copyright infringement or legitimate use through manual review, ensuring accurate determination.
03
Data Management
We register confirmed infringing URLs in our system, organize and classify them across multiple data fields, and manage them centrally within our database.
04
Takedown Requests
We submit takedown requests for infringing URLs in compliance with the U.S. Digital Millennium Copyright Act (DMCA).
05
Search Engine Action
To prevent the spread of illegal content, we submit removal requests to search engines to delist infringing pages from search results.
06
Ongoing Monitoring
We continuously monitor whether piracy sites and social media platforms comply with takedown requests and track ongoing conditions.
Customization
Our services can be customized to meet your specific needs.The following are examples. Please feel free to contact us for more details.
Investigation & Data Collection
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Takedown Request Services
Full-Service Support
DMCA Framework
The Digital Millennium Copyright Act (DMCA), enacted in 1998, is a U.S. copyright law widely used to address online infringement.
One of its key features is the “notice and takedown” system, under which rights holders notify platforms, hosting providers, and search engines of infringement, and service providers avoid liability by responding appropriately.
Many U.S.-based companies such as Google, YouTube, and social media platforms operate under this framework, making it essential for addressing online infringement.
DMCA-based actions typically include removal of content and delisting from search results.
Mission
In recent years, copyright-infringing content has crossed national and language boundaries, making it easily accessible through the internet. As a result, the financial damage caused by copyright infringement continues to grow year after year.
Copyright infringement takes various forms, ranging from organized, profit-driven activities to unauthorized sharing on social media carried out without malicious intent. However, none of these acts is acceptable.
In recent years, copyright-infringing content has crossed national and language boundaries, making it easily accessible through the internet. As a result, the financial damage caused by copyright infringement continues to grow year after year.
Copyright infringement takes various forms, ranging from organized, profit-driven activities to unauthorized sharing on social media carried out without malicious intent. However, none of these acts is acceptable.
In recent years, copyright-infringing content has crossed national and language boundaries, making it easily accessible through the internet. As a result, the financial damage caused by copyright infringement continues to grow year after year.
Copyright infringement takes various forms, ranging from organized, profit-driven activities to unauthorized sharing on social media carried out without malicious intent. However, none of these acts is acceptable.
In recent years, copyright-infringing content has crossed national and language boundaries, making it easily accessible through the internet. As a result, the financial damage caused by copyright infringement continues to grow year after year.
Copyright infringement takes various forms, ranging from organized, profit-driven activities to unauthorized sharing on social media carried out without malicious intent. However, none of these acts is acceptable.
Regardless of how the service is customized, clients can monitor our activities in real time through a dedicated portal.
The portal allows flexible data display and report generation based on your specific needs.
Contact
For inquiries or consultations regarding our services, please feel free to contact us using the form below.
611 Gateway Blvd, Suite 120 South San Francisco, CA 94080