The topics they cover and you don't.
Your crawled pages against theirs, clustered by topic, with every gap carrying the competitor page that evidenced it and the demand that makes it worth closing.
The problem
Most gap analysis ranks by how many competitors cover a topic, which just tells you what is crowded. What you need to know is what people are actually searching for and you have nothing to show them.
Content Gaps, explained in about a minute
How it works
What it measures, what comes out, and why the number can be trusted.
- 01
Both sites, read the same way
Your pages and your tracked competitors' pages are crawled and clustered by topic, so a gap means a genuine absence rather than a keyword you happen not to use.
- 02
Scored by demand, not by crowd
A gap's priority comes from real search volume for the topic. Five competitors covering something nobody searches for is not an opportunity.
- 03
Every gap shows its evidence
Each one carries the competitor page that demonstrates it. You can read the page that made the case before you commit to writing anything.
- 04
Down to the sub-questions
For a topic that matters, RankSage maps the sub-questions a complete answer has to cover and checks your coverage against each — which is usually where a thin page is actually thin.
What it does not do
- It compares against the competitors you track. Add the wrong ones and you get the wrong gaps.
- A gap is an opportunity, not a guarantee. Demand data is directional.
- Crawl depth is capped by plan, so very large competitor sites are sampled rather than read whole.
Works with
Question Mining
The questions your market actually asks, mined from real search surfaces and drawn as a mind map — with your own impressions as the only volume signal.
AI Content Writer
Drafts that cite sources that exist — researched first, written second, every link checked before you read it.
Competitor Analysis
Their pages crawled and scored on your own scale, with keyword matrices side by side and a dated history per rival.
Questions
How do I find content gaps against a competitor?
RankSage crawls your site and theirs, clusters both by topic, and reports the topics they cover that you do not — ordered by real search demand, with the competitor page that evidenced each gap.
How is this different from a keyword gap tool?
A keyword gap compares ranking lists. This compares actual content, so it can tell you that a topic is covered but shallowly, and which sub-questions a complete answer is missing.
Can it tell me what to write?
Any gap can be turned into a content brief that reads both sites and returns a structure, the angles to cover, and the sections of your own content worth reusing.
AI is already answering for you.
Sign in to Google Analytics and Search Console — read-only, about five minutes, nothing to install on your site.