Not even arguably - explicitly. From the CII website:
> The CII has been replaced by the Open Source Security Foundation (OpenSSF). Please go to the OpenSSF site for current activities in securing open source software. In particular, the CII Best Practices badge work continues as part of the OpenSSF Best Practices Working Group, while the CII research conducted on open source software security by Harvard continues as part of the OpenSSF Securing Critical Projects Working Group.
> This CII website is being retained to preserve historical information and to help with transition to the OpenSSF.
To keep the website a historical reference is a good practice. But if not every page on the site has a banner to tell this background it can be very misleading. Visitors don't necessarily read the front page.
> The CII has been replaced by the Open Source Security Foundation (OpenSSF). Please go to the OpenSSF site for current activities in securing open source software. In particular, the CII Best Practices badge work continues as part of the OpenSSF Best Practices Working Group, while the CII research conducted on open source software security by Harvard continues as part of the OpenSSF Securing Critical Projects Working Group.
> This CII website is being retained to preserve historical information and to help with transition to the OpenSSF.