Abstract—The website of “Pengurus Cabang Nahdlatul
Ulama” (PCNU) was created as a means of storing and managing
data within the organization. There is a need for periodic website
development and to maintain the quality of the website in each
development, this research problem aims to measure the quality
of the website owned by PCNU Depok. So that it can be assessed
and made improvements to the next version of the website
according to the needs of the organization's management. This
study aims to measure the quality of the PCNU Depok website in
terms of maintainability, flexibility and testability. The stages of
the research carried out were: website module analysis, PCNU
website installation, composer installation, PHPMetrics
installation, running PHPMetrics application to measure PCNU
website quality, analyzing measurement results from
PHPMetrics. Research on website quality using the
maintainability index method resulted in 63.57 which were
classified as low maintainability values. The low maintenance
index has an impact on the weakness of the module site for
maintenance and development based on Lines Of Code,
Cyclomatic Complexity, and Halstead Volume. Flexibility factor,
the site gets a moderate classification or reasonable limit because
it has coupling = cohesion. Testability on the website has a good
classification with an average value of 16.65. With a good
testability value, the website gets a positive value in the testing
and maintenance process so that the module is not difficult to
understand and development.