This document proposes a two-tiered crawling approach using PhantomJS and Heritrix to better archive deferred representations, which are web pages that require JavaScript execution or user interaction to fully render. The approach uses PhantomJS to execute JavaScript and interact with deferred representations, while Heritrix crawls non-deferred representations for better performance. Test results found the PhantomJS frontier was 1.5 times larger but crawling was 10.5 times slower. The approach provides a better method for archiving deferred representations compared to the current workflow.