Scalability Issue

We have 1,397 link entries on our site. Every new call to the plugin seems to check all content types for links and then check the links, materializing a big bottleneck.

Although a big ask, it would help (our) usability to break this workflow into three steps:
(1) Build a cache of all links found in the content; trigger as a button
(2) Check all cached links for their status; trigger as a button
(3) Display the cached values

The page I need help with: [log in to see the link]