Entity and Semantic SEO
Topical authority mapping
Within Entity and Semantic SEO, this is the piece that work out what your site is credibly about, and what it would take to be credible on more.

What are you buying when you buy topical authority mapping?
Work out what your site is credibly about, and what it would take to be credible on more. In practice that means mapping current coverage against the full topic space of your category, and then the harder half: identifying the gaps that break a topic cluster‘s completeness.
Why this work exists
Teams tend to buy the visible part of this discipline and skip this, then wonder why the visible part underperforms.
Part of Entity and Semantic SEO, and the part where the diagnosis is usually most useful on its own.
The nearest piece of work to it is finding the topic where the site is three articles short of credible. Where that is already handled, this moves faster than the estimate; where it is not, the two get done together or neither of them holds.
What good looks like
The test is whether somebody outside the team would reach the same conclusion from the same evidence. If they would not, this is not finished.
The gap between that and where most accounts start is why this is scoped as topical authority mapping rather than as a line inside something larger. Settling on one name for the thing and using it everywhere is the usual second step once it is in place.
When this is the right work
It is worth doing when:
- You rank for scattered terms with no pattern
- Competitors with less authority outrank you on their focused topics
- Content is commissioned by keyword rather than by topic
If none of those is true, something else is probably the constraint, and the Entity and Semantic SEO overview maps the alternatives. The usual neighbours are making the about page carry facts rather than adjectives and linking the brand to the industry bodies it genuinely belongs to.
What the work covers
The constituent pieces:
- Mapping current coverage against the full topic space of your category. Straightforward in principle; the detail is where it stops being quick.
- Identifying the gaps that break a topic cluster’s completeness. This is where the theory meets the account and usually loses.
- Prioritising by commercial value rather than by volume, which clients tend to want evidence for, so it is documented as it goes.
- Sequencing publication so each cluster completes rather than sprawling. The effort here scales with the size of the estate, not with the size of the brief.
How it runs
Stage by stage, with what each one is protecting against.
Finding the constraint
Most of the available gain sits in one or two places. The first job is working out which, rather than improving everything by a little.
Working in public
Decisions get written down where the client can see them as they are made, so nothing arrives as a surprise in a monthly report.
Reading what is already there
Before anything is proposed, the existing setup gets read rather than assumed. Half of what a brief describes as missing turns out to exist under a different name.
What each part runs into
Read against real markets, each part has its own problem:
- Mapping current coverage against the full topic space of your category, harder in Bengaluru because of a catchment smaller than the ambition on the website
- Identifying the gaps that break a topic cluster’s completeness – in Surat, complicated by the fact that an incumbent whose position comes from presence rather than effort
- Prioritising by commercial value rather than by volume, which in Sharjah runs into a buying pattern that resolves faster than the reporting cycle
- Sequencing publication so each cluster completes rather than sprawling: the New York version of this has to deal with a sector mix that pulls the brief in several directions
The mistake most often made here
Publishing a hundred pages across twenty topics instead of twenty across five. Partial coverage of many topics reads as authority on none.
Naming it upfront is the difference between a result and a report about effort.
How it is measured
Share of each priority cluster covered, and ranking distribution within covered clusters. That is the number the work is judged on, reported alongside whatever the business already tracks rather than instead of it.
Two people should be able to calculate it independently and get the same answer. If they cannot, it is the wrong measure.
What you end up with
What you can point at afterwards is a topic map with current coverage marked, gaps prioritised, and a publication sequence that completes clusters.
Written to be read by somebody who was not in the meetings.
How it differs by sector
Where it is done matters as much as what is done:
- Legal and professional services, where high-value, high-intent local search under advertising rules that vary by jurisdiction. which moves this work earlier in the plan.
- In Real estate and property the binding constraint is that portals own the generic demand, so the win is locality authority and the specific listing.
- Nonprofit and NGO: the thing that changes the scope here is that two audiences with nothing in common: donors and the people served.
The industry pages carry the rest of that detail. Legal and professional services and Real estate and property are the two where this piece of work most often decides the outcome.
Common questions
What is topical authority in practice?
A pattern rather than a score: a site that covers a topic completely, consistently and accurately tends to rank for new pages in that topic faster and higher than a site that covers it partially. There is no authority metric to read; the observable effect is how a new page performs relative to the site’s history on that topic.
How complete does a topic cluster need to be?
Complete enough that a reader with a question in that topic finds it answered, which is a judgement rather than a number. A practical test is whether the obvious follow-up question to each page has its own answer somewhere on the site. If it does not, the cluster has a hole.
How much of our time does this take?
A few hours in the first fortnight, mostly answering questions about history that cannot be reconstructed from the data. After that, a monthly review. The short version is here. Home and trade services and Legal and professional services are the long ones.
What do we actually get at the end?
A topic map with current coverage marked, gaps prioritised, and a publication sequence that completes clusters. Documented, so it survives whoever was in the room, and specific enough to act on without a follow-up conversation. Next: Content and Editorial. After that, Conversion Rate Optimization, which is where the trade-offs live.
What if this is not our problem?
Then we say so. The signals on this page are the honest filter, and work sold against the wrong diagnosis wastes a quarter. The page that answers the follow-up question is Featured snippet or AI overview. The one that answers the objection is Core Web Vitals field data or Lighthouse lab score.
Ask about topical authority mapping
Give us the site and one question. If the honest answer is that you do not need this, we will say so.
Find out whether this is worth doing at all
Bring the numbers you have. We will tell you which ones are measuring the wrong thing before we suggest anything new.
