Content gap analysis workflow

A content gap analysis is a systematic audit of what your site covers vs what your competitors cover (or what your audience searches for). End-to-end workflow using SERPTool's DOMAIN and COMPETITOR modes.

Three flavours of gap

Competitor gap — keywords your competitor ranks for that you don't. See the keyword gap analysis how-to for the 1v1 version of this.

Category gap — sub-topics within your own space where you have no coverage at all, regardless of whether any competitor covers them.

Intent gap — topics you cover informationally but not commercially (or vice versa), missing revenue opportunities.

This guide is the full end-to-end workflow combining all three.

Step 1: Define the universe

Before you start pulling data, write down:

Your site's purpose in one sentence. "We help freelance designers land better clients" — whatever it is.
3–5 core topic clusters that serve that purpose. For the designer example: pricing and rates, finding clients, contracts and legal, tools and workflow, portfolio.
Your ICP's job-to-be-done queries within each cluster. Roughly 10 per cluster.

That's 30–50 ICP queries. This is the "demand" side of the gap.

Step 2: Audit your current coverage

Use SERPTool's DOMAIN mode on your own domain. Run it with a cap of 500–1,000 keywords. You'll get back the keywords you already rank for (even on page 2–5).

Import the result to a spreadsheet. Tag each row with one of your clusters (manually for under 500 keywords, or via a VLOOKUP against keyword heads for larger lists).

You now have a coverage map: how many keywords you rank for, by cluster, at what rank range.

Step 3: Audit competitor coverage

Pick your 3 closest competitors (similar audience, similar size or slightly larger). Run DOMAIN mode on each.

Import, tag by cluster, merge into a single spreadsheet with a "domain" column to track source.

Step 4: Build the universe of demand

Now pull in the specific ICP queries you defined in step 1. Run them through KEYWORD mode if they're not already in your merged spreadsheet. Tag them.

You now have three populations:

Keywords you rank for (from step 2).
Keywords your competitors rank for (from step 3).
Keywords your ICP searches for (from step 1, may overlap with above).

Deduplicate. Each keyword shows up once with columns for "you rank at", "comp A rank", "comp B rank", "comp C rank", "ICP-relevant yes/no", plus all SERPTool metrics.

Step 5: Identify the four gap types

Sort / filter to find:

Cluster gaps — clusters where you have zero rankings but competitors have 20+. Action: build out the cluster from scratch. Pick 10 high-opportunity keywords in the cluster and write articles.

Rank-drop gaps — keywords where you rank position 8–20 but competitors rank position 1–5. Action: optimize existing content. Refresh, add depth, improve internal linking to these pages.

Intent gaps — clusters where you cover informational but not commercial (or vice versa). Action: create the missing intent coverage. If you have "how to" articles but no "best X" listicles, write listicles.

Demand gaps — ICP queries you defined in step 1 that no one (you or competitors) ranks well for. Action: these are blue-ocean opportunities. No authoritative content exists. Being first can be extremely lucrative if Opportunity Score is high.

Step 6: Prioritize with a score

For each gap keyword, compute:

gap_priority = opportunity_score × volume × cluster_strategic_fit × intent_match_revenue

Where:

opportunity_score is SERPTool's 0–100.
volume is monthly search volume.
cluster_strategic_fit is 0–1 based on how important that cluster is to your business (you assign).
intent_match_revenue is 0–1 based on how well the intent matches your monetisation.

Sort descending. Top 50 = your content backlog for the next 6 months.

Step 7: Execute in pillar+spoke pattern

Don't randomly pick 10 keywords from the backlog. Pick a cluster, identify:

The highest-volume keyword in the cluster with Opportunity ≥ 65 → pillar article.
5–8 long-tail keywords in the same cluster with Opportunity ≥ 75 → spoke articles.

Write the pillar first. All spokes link to it. Pillar links to all spokes. Tight cluster = Google attributes topical authority faster.

Step 8: Re-run quarterly

Competitor rankings move. Your own rankings move. New keywords emerge, old ones drop in relevance. A quarterly content-gap re-run keeps your backlog honest.

Typical quarterly pattern:

Q1: run full analysis, build backlog. Start publishing.
Q2: half-way review. Refresh keywords that haven't moved.
Q3: re-run analysis. Update backlog with what's changed.
Q4: ship remaining backlog, plan next year.

Tool-stack notes

SERPTool gives you everything you need for steps 2–5 at a reasonable credit cost. A full 4-competitor analysis across a 100-keyword ICP-query set is roughly:

4 × DOMAIN mode × 500 keywords = 2,040 credits.
Plus 1 × KEYWORD mode × 100 = 110 credits.
Total: 2,150 credits. Comfortably within a Professional monthly allowance.

For prioritisation and internal tagging, a spreadsheet works fine at this scale. For larger operations (20+ competitors), you'll want something scriptable.