Topical authority: what Google has actually said and how to build real depth

Two meanings of topical authority

Search for “topical authority” and you will find two different things under one name.

• Google's topic authority system. A named system, announced on the Google Search Central blog in May 2023, that helps Google pick expert publications for news queries in specialised areas such as health, politics or finance, and local publications for local news.
• The SEO-industry concept. A working model: if a site covers a subject in depth, with interlinked pages and visible expertise, it tends to earn rankings across the whole subject, not only for one keyword.

Mixing the two leads to bad decisions. People quote the news system as proof that Google “scores” every site's topical authority, then try to raise that imaginary score by publishing hundreds of pages. The news system does not work that way, and mass publishing is exactly what Google's spam policies warn against.

What Google officially says

The topic authority system for news

Google says “The topic authority system looks at a variety of signals to understand the degree of expertise a publication has in particular areas.” It names three of the most prominent:

• How notable a source is for a topic or location: “Our systems understand publications that seem especially relevant to topics or locations.”
• Influence and original reporting: “Our system looks at how original reporting (for example the publisher that first broke a story) is cited by other publishers to understand how a publication is influential and authoritative on a topic.”
• Source reputation: “Our system also looks at a source’s history of high-quality reporting, or recommendations from expert sources, such as professional societies.”

The result, in Google's words: “Publishers with a specific expertise are more likely to surface when their content is most helpful to understand a news story about a specific topic or field.” And the advice is short: “Publishers looking for success with topic authority should do exactly what their publications would normally do: provide great coverage about the areas and topics they know well.”

The ranking systems guide

Google's guide to its ranking systems lists systems such as BERT, deduplication, freshness, link analysis, original content, passage ranking, RankBrain, reliable information, reviews and site diversity. It does not list a general “topical authority” system for web search. What it does say is how pages and sites relate:

So a strong reputation on a topic can help, but every page still has to earn its place on its own.

The helpful content questions

Google's self-assessment page has the questions closest to what SEOs mean by topical authority. Each one is a direct quote:

• “Does the content provide a substantial, complete, or comprehensive description of the topic?”
• “Does the content provide original information, reporting, research, or analysis?”
• “If someone researched the site producing the content, would they come away with an impression that it is well-trusted or widely-recognized as an authority on its topic?”
• “Is this content written or reviewed by an expert or enthusiast who demonstrably knows the topic well?”
• “Does your site have a primary purpose or focus?”
• “After reading your content, will someone leave feeling they've learned enough about a topic to help achieve their goal?”

What SEOs mean by the term

In everyday SEO work, “building topical authority” usually means a set of practices:

• Coverage: the site answers the important subtopics and questions of one subject, not just the head keyword.
• Structure: a pillar page gives the overview and topic clusters of detailed pages hang off it.
• Internal linking: pages on the same topic link to each other with descriptive anchors, so readers and crawlers can move through the subject.
• Focus and consistency: the site keeps publishing on the same subject over time instead of chasing whatever trends.
• Subject matter expertise: the people behind the content have real experience, and the pages show it.

This model is useful because it turns vague advice into a plan you can execute and measure. Treat it as your hypothesis about how to be the most useful site on a subject, not as a description of a Google algorithm. If a tactic makes the site look more “authoritative” to a tool but less useful to a reader, the model has been misapplied.

There is no topical authority score

Several SEO tools show a “topical authority” or “topic score” number. These are the vendor's own estimates, built from their crawl and keyword data. They are not Google data, and Google publishes no such metric. A rising tool score is not evidence that Google sees you differently.

The same caution applies to E-E-A-T, which is often treated as a score:

Track outcomes you can verify: which of your planned queries get impressions, which pages are indexed, how the cluster ranks and earns clicks. The measurement section below shows how.

How to plan topic coverage

Start with a core topic you can genuinely speak about. Say example.com is run by people who repair and test espresso machines: the core topic is “home espresso”. Then work downwards.

1. List the subtopics. Machines, grinders, beans, technique, maintenance. These usually become sections or hub pages.
2. Collect the real questions under each. “How to descale an espresso machine”, “why espresso tastes sour”, “burr vs blade grinder”. Good sources: queries in Search Console, support tickets and sales questions, People also ask boxes, and the tables of contents of pages that already rank.
3. Group questions by intent. Questions with the same intent belong on one page; a separate intent gets a separate page. The lessons “Clustering and the content map” and “Keyword cannibalisation” cover this step in detail.
4. Mark what you will not cover. Topics you have no experience with, and topics only loosely connected to your audience. Skipping them is part of the strategy.
5. Prioritise. Cover the questions where you have the most to add first, then fill the remaining gaps.

Depth over breadth

Depth is not length. Google answers the word-count question directly in its list of warning signs: “Are you writing to a particular word count because you've heard or read that Google has a preferred word count? (No, we don't.)”

In practice, depth means:

• Original information: your own tests, measurements, photos, data and examples from real work.
• Complete answers: the reader can act on the page without searching again.
• First-hand experience: Google asks “Does your content clearly demonstrate first-hand expertise and a depth of knowledge (for example, expertise that comes from having actually used a product or service, or visiting a place)?”
• Maintenance: pages are updated when facts, products or prices change.

The opposite approach, covering a topic by volume, has a name in Google's spam policies:

Typical “topical authority” shortcuts that drift into this territory: city × service pages with only the town name swapped, one page per keyword variant, glossary entries generated in bulk and never reviewed, and pages that merge other sites' articles. Google's examples include “Stitching or combining content from different web pages without adding value” and “Creating many pages where the content makes little or no sense to a reader but contains search keywords”. The helpful content page also lists “Are you producing lots of content on many different topics in hopes that some of it might perform well in search results?” and “Are you using extensive automation to produce content on many topics?” as warning signs. The lesson “AI-assisted content without scaled content abuse” goes deeper into where that line sits.

One page that fully answers a question is worth more than five pages that each answer part of it. Fewer, stronger pages are also easier to keep accurate.

Pillar pages and cluster linking

A pillar page is the broad overview of the core topic or a large subtopic. A cluster page covers one subtopic or question in depth. The linking pattern is simple:

• The pillar links to every cluster page, in context, with a sentence on what each one answers.
• Every cluster page links back to the pillar.
• Cluster pages link to closely related siblings where a reader would genuinely want the next step.
• Breadcrumbs and the section or hub page repeat the structure in navigation.

Google's link guidance supports both halves of this: “Every page you care about should have a link from at least one other page on your site.” And on anchors: “Good anchor text is descriptive, reasonably concise, and relevant to the page that it's on and to the page it links to.” A link that says “how to descale an espresso machine” tells the reader and Google what is on the other side; “read more” does not.

Two things break the pattern most often. First, pillar pages that are only a list of links, with no content of their own; a pillar should be a useful overview even for a reader who never clicks further. Second, orphan cluster pages, published and never linked from anywhere. The lesson “Internal linking and orphan pages” shows how to find them.

Expertise signals that are real

Depth of coverage does little if the reader cannot tell who wrote the content and why they should trust it. Google frames this as “Who, How, and Why” and asks, for example: “Do bylines lead to further information about the author or authors involved, giving background about them and the areas they write about?”

It is equally clear about the shortcut: “Fabricating creator profiles (such as by using AI-generated headshots, made-up names, or false credentials to make content appear as if it was written by human experts) is a form of deception.” Production at volume is flagged too: “Is the content mass-produced by or outsourced to a large number of creators, or spread across a large network of sites, so that individual pages or sites don't get as much attention or care?”

The lessons “E-E-A-T: the four pillars” and “Authors, About and editorial policy” cover these signals one by one.

Staying on topic vs straying

Google's question “Does your site have a primary purpose or focus?” does not mean a site may only ever write about one thing. Adjacent topics that serve the same audience are a natural extension: an espresso site adding guides on milk frothing or water hardness is still answering its readers. Unrelated topics are different, and Google names the motive behind many of them: “Did you decide to enter some niche topic area without any real expertise, but instead mainly because you thought you'd get search traffic?”

A more serious case is when an unrelated section is filled by someone else, placed there to borrow the site's rankings. Google's spam policies call this the site reputation policy:

Third-party content is not the problem in itself: “Having third-party content alone isn't inconsistent with the site reputation policy; it's only inconsistent if the third-party content is published on a host site mainly because of that host site's already-established ranking signals.” One of Google's examples is “A medical site hosting a low-quality, third-party advertising page about "best casinos" that isn't integrated with the site, and that's being placed on the site to rank better due to the established site's ranking signals”.

The same policy notes that “Google generally applies a presumption that individual pages (including new pages) match the overall quality of other pages on the domain.” Topical focus works both ways: a reputation earned on one subject is not a licence to rank for any subject. The lesson “Site reputation abuse” covers the policy in full.

Measuring progress in Search Console

You cannot see topical authority, but you can see whether a topic is gaining visibility. In the Search Console Performance report, define the cluster once and use the same definition every time:

• By pages: a Page filter with a custom regex for the cluster folder, if your URLs are grouped.
• By queries: a Query filter with a custom regex of the topic's terms, if they are not.

# Page filter → Custom (regex)
/espresso/

# Query filter → Custom (regex)
espresso|portafilter|burr grinder|descal|backflush

Then track a small set of numbers for equal periods, for example the last three months against the previous three:

A few rules keep the numbers honest:

• Read it as direction, not as a score. Search Console does not show every rare query, so counts of distinct queries are a lower bound.
• Watch the breadth first. Early on, a topic usually gains impressions across more queries before positions and clicks follow.
• Give it time. New pages have to be crawled and indexed before they can appear. Judge a cluster over months, not days, and check the Page indexing report if cluster pages show no impressions at all.
• Look at pages that compete. If two cluster pages trade impressions for the same queries, you have cannibalisation, not depth.

The lesson “Performance report: filters, regex, comparisons” explains the filters and comparisons step by step.

Common mistakes

• ✕Believing in a Google topical authority scoreGoogle publishes none; tool scores are vendor estimates.
• ✕Quoting the news system for every siteThe named topic authority system is described for newsy queries, not as a general web ranking score.
• ✕Coverage by volumeNear-duplicate pages per keyword variant or per city, generated in bulk.
• ✕Writing to a word countGoogle says it has no preferred word count; completeness is what matters.
• ✕Covering everything loosely relatedTopics nobody on the team knows, added only for traffic.
• ✕Link-list pillar pages and orphan clustersThe pillar needs its own content; every cluster page needs links in.
• ✕Several pages for one intentThey compete with each other instead of adding depth.
• ✕Fake authors and refreshed datesInvented profiles and date changes without real updates are deception, not expertise.

FAQ

Sources

• Google Search Central Blog — Understanding news topic authority
• Google Search Central — A guide to Google Search ranking systems
• Google Search Central — Creating helpful, reliable, people-first content
• Google Search Central — Spam policies for Google web search
• Google Search Central — Link best practices for Google

Quotes checked against the official pages on 30 October 2026.