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We safeguard the copyrights of books, academic works, comics, videos, and images from online piracy. 

Supporting your company with global expertise

15 years of proven success in combating piracy

サンフランシスコ

SENTINEL

Sentinel – Copyright Guardian was founded in the Bay Area of San Francisco, California, to protect the copyrights of books, publications, comics, videos, and images from online piracy.

In today’s digital landscape, copyright-infringing content is easily accessible across borders and languages via the internet, leading to immense financial losses.

 

We safeguard your content by removing illegal copies in accordance with the U.S. DMCA (Digital Millennium Copyright Act).

Solutions

Monitoring, takedown, and blocking —

our three core pillars to protect your content from copyright infringement

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Service

We will address copyright infringement thoroughly in six steps.

01

​Copyright Infringement Investigation

In addition to automatic crawling, our experienced team will carry out site-specific, language-independent research.

02

Infringement Verification

Visually determine whether it is a pirated copy or licensed content

03

Data collection

All URLs that have been confirmed to be infringing are entered into the system and managed in a database in detailed categories.

04

Takedown Requests

Request removal of URLs containing copyright infringing content in accordance with the US DMCA law

05

Search Engine Measures

Request the search engine to remove illegal content from search results to prevent its spread

06

Ongoing Monitoring

Continuous monitoring of whether pirate sites and social media sites have responded to requests to remove content

Customization

Our services are customized to meet your needs.
The following options are also available, so please feel free to contact us.

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Service No.01〜03

Investigation to data collection

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Service No.04

Takedown request on your behalf

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 Service No.01~06

Comprehensive service

No matter how you customize your service, customers can check our response status in real time on a dedicated portal.
 

We can also display only the data you need and generate reports accordingly.

レポート

Contact

If you have any questions about our services or other inquiries, please contact us here.

611 Gateway Blvd, Suite 120 South San Francisco, CA 94080

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© 2025 Sentinel - Copyright Guardian LLC

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