What role does 'Tag Manager' play in Google Analytics implementation?

Tag Manager plays a crucial role in the implementation of Google Analytics by simplifying the management and deployment of tracking codes. This tool allows users to manage all their website tags from a single interface without requiring modifications to the website’s codebase.

By utilizing Tag Manager, marketers and webmasters can quickly add, edit, or disable tags as needed for various marketing and analytics services without relying on developers for urgent changes. This flexibility not only streamlines the process of implementing tracking codes like those for Google Analytics but also improves version control and reduces the risk of errors that can occur when directly altering the site's code.

The other options do not accurately describe the primary function of Tag Manager. While creating custom reports is a function of Google Analytics itself, real-time data analysis is a feature within Google Analytics, and enhancements in page load speed are typically a separate consideration related to site optimization, not directly tied to how Tag Manager operates.