gred（グレッド）は、そのサイトが安全（green）か危険（red）かを判断する無料のWebチェックサービスです。

gred is a free web security service that can help you determine whether the web site is safe or dangerous. Unlike traditional tools, gred does not rely on a pre-determined list of unsafe URL list (URL blacklist) since content of web sites can change anytime. Blacklist worked in the past since hostile contents were mostly found on suspicious web sites. But today, hostile contents are often injected into good sites. The gred web site and the technology used by this site were developed by SecureBrain Corporation and we hope it can help protect you identify hostile web sites.

Give "gred" a try. Its very easy to use.

When visiting a new site, when sites ask for any personal information(passwords and credit card numbers), when downloading software from unknown sites, we highly recommend you check the web site using gred. Simply enter the URL and click on the "Check" button. gred will actually visit the URL and make its best determination whether the site is safe or not. Please give it a try.

When site is safe...

When site is dangerous...

When a suspicious program is found on a hostile web page

When a suspicious program is found on a hostile web page, an optional "xxxx" button will appear. When you click on this button, more detailed analysis will be performed on the program to provide information on what the program does. The analysis will take a few minutes and results will be emailed to you. You will need to enter your email address when a pop-up window is displayed.
If you do not see the pop-up window to enter the email address, you may need to disable your pop-up blocker.

（2）After the analysis is complete, a result notification email will be sent to your email address (it may take 5 to 15 minutes depending on the work load). When you click on the link in the email, you will be able to view the detailed analysis report.
If you do not get an email, its possible that you have entered an incorrect email. In such case, please try again.