Content Gap Analysis Workflow

A content gap is easier to see than to calculate. On the map below, one category has grown into a dense cluster and the others are a node or two each, which is the shape of a blog somebody started five sections of and finished one.

The red node in the middle is the blog homepage, and the lines running out of it are the category pages it links to. Everything hanging off those is a post.

What the Map Shows

Three things stand out on this map without measuring anything. One category is heavily populated and clusters tightly, the remaining categories carry an article or two apiece, and inside the developed category a few subcategories are just beginning to form their own groups.

Those young subcategories are the part worth slowing down for. A cluster that is starting to separate from its parent is usually a topic that has outgrown being a subsection, and it is the cheapest new section to build because the surrounding posts already exist to link into it.

Three Ways to Read It

The same picture supports three different strategies, and the map will not pick for you.

1. Balance the site by writing into the underpopulated categories
2. Go deeper inside the category that already works, using the emerging subcategories as the outline
3. Keep expanding the dominant category and accept that the site is about one thing

Each has a cost. Balancing spends effort on sections with no proven demand, going deeper concentrates the site further, and expanding the dominant category leaves those thin sections looking abandoned to anyone who lands on them.

Choosing Between the Three

Pick with data the map does not contain. If a thin category matches a keyword you have already researched and know has demand, that is a reason to fill it; if it exists because somebody made a category once, deleting it beats writing into it.

Keyword research is the input that turns this from taste into a decision, and competitor research tells you what the pages already ranking for that topic look like before you write one.

Showing a Client the Gap

Stakeholders argue with recommendations and agree with pictures. Putting the map on screen and pointing at the empty side of it makes the case for a content budget in about ten seconds, without asking anybody to follow a spreadsheet.

It also protects you later. The map is a record of what the site looked like when the plan was agreed, which is a useful thing to have on hand three months in.

Watching the Shape Change

Recrawl after a few posts land and the clusters move. New posts pull their category outward, new internal links pull loose nodes back toward the group they belong to, and a subcategory that was emerging either becomes its own cluster or does not.

Switching the node color to a performance metric adds the other half of the picture. Structure tells you what you wrote; impressions, clicks and engagement tell you which of it anyone wanted, and the gap between those two answers is where the next month of work usually is.

This is one of the workflows in the section, and it pairs with the others rather than replacing anything you already do.