# Topical Authority in SEO: What It Is and What Google Says

> What topical authority is, what Google documents and what it doesn't, and how to build it in an online store with categories, product pages and links.

URL: https://clione.ai/glossary/topical-authority/
Lang: en

"Topical authority" is a phrase you hear in audits and agency proposals, almost always to justify a content plan. It is not the "domain authority" some outside tools calculate: those scores are each tool's own estimates, and Google warns that **no third-party tool has access to its internal ranking systems**.[^google-ai-guide] It matters to a store because the idea, properly understood, puts the work in order, including for [AI search](/glossary/ai-search/): cover what you sell in depth before writing about everything.

## What Google documents and what it doesn't

The name exists at Google, but with a specific scope. On May 23, 2023, Google explained its _topic authority_ system on its Search Central blog, which **helps decide which expert sources are useful for a news query** in specialized areas such as health, politics or finance. The most prominent signals it cites are three: how well known a source is for a topic or a place; its influence and original information, measured by how other outlets cite it; and its reputation, with a track record of good journalism or recommendations from expert sources. Its advice to publishers: cover well the areas and topics they know.[^google-topic-authority]

Outside news, Google does not describe a system like that. Its guide to ranking systems, updated on December 10, 2025, lists the ones it uses, and **none is called topical authority**. It does include pieces that resemble it: link analysis systems, PageRank among them, which use how pages link to each other to understand what they are about; original content systems; and reliable information systems, which help surface pages with more authority.[^google-ranking-systems]

What Google does put in writing, spread over several pages:

| What Google says                                                                                                                                                                            | Where                                                                        |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
| It looks for signals about which content demonstrates expertise, authoritativeness and trustworthiness; one of them is whether **other prominent websites link to or mention that content** | How Search works[^google-how-search-works]                                   |
| It asks whether your site has a primary purpose or focus, and whether someone researching the site **would come away seeing it as a recognized authority on its topic**                     | [Helpful content](/glossary/helpful-content/) guide[^google-helpful-content] |
| It flags as a warning sign producing lots of content on many different topics in the hope some of it performs, or entering a niche with no real expertise just for the traffic              | Helpful content guide[^google-helpful-content]                               |
| It generally presumes that every page, new ones included, is up to the quality of the rest of the domain                                                                                    | Spam policies[^google-spam-policies]                                         |
| It has no preferred word count                                                                                                                                                              | Helpful content guide[^google-helpful-content]                               |

Together they sketch something like the industry's topical authority, with an important difference: **Google talks about purpose, recognition and quality, not about how many pages you publish**. It says so outright in its guide to generative AI features: creating separate content for each variation of a search, mainly to manipulate rankings, violates its policy on [scaled content abuse](/glossary/scaled-content-abuse/), and it does not work in the long run either, because **a large number of pages does not make a site higher quality or more relevant**.[^google-ai-guide]

## In a store

In an online store, the topic is the products. Coverage of it is not in a blog, but in each [category page](/glossary/category-page/), in the [product pages](/glossary/product-page/) and the guides that help people choose, and in how they link to each other. Google explains that it analyzes the relationship between pages from their links, that menus and links between pages influence how it understands the structure of the site, and that **the more [internal links](/glossary/internal-linking/) a page receives, the more important it considers it within the site**. It recommends linking from menus to categories, from categories to subcategories and from there to all the product pages, and adding [structured data](/glossary/structured-data/) so it understands what each page is for.[^google-ecommerce-structure]

A **fictitious example**: a climbing gear store.

| Piece                                             | What it covers                                                                | How it is linked                                                                           |
| ------------------------------------------------- | ----------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
| "Ropes" category                                  | All the ropes, with filters by diameter, length and use                       | From the main menu; links to each [product page](/glossary/product-page/) and to the guide |
| Rope product pages                                | Each model, with diameter, weight per meter, rope type and recommended use    | From the category; link to the guide and to compatible accessories                         |
| "How to choose a climbing rope" guide             | The differences between single, double and twin ropes, and when each is right | From the category and the product pages; links back to the models it mentions              |
| Article "The best beach destinations this summer" | Nothing the store sells                                                       | Unrelated to the rest                                                                      |

The first three rows are coverage: **each piece answers a question from someone about to buy a rope** and leads to the others. The fourth is the warning sign Google describes: writing about a topic for the traffic, unrelated to what the site knows and sells.[^google-helpful-content] And one concrete improvement from Google's own guide: if you have a best-selling product, link to it from the home page or from other content on the site.[^google-ecommerce-structure] [Internal linking](/glossary/internal-linking/) is the part of topical authority that depends only on you.


That topical authority is earned by publishing lots of articles about everything around your topic, one for each possible query. Google says the opposite: producing lots of content on many topics in the hope some of it performs is a warning sign,[^google-helpful-content] and creating a page for each variation of a search to manipulate rankings is scaled content abuse.[^google-ai-guide] **The coverage that counts is the kind that answers the buyer, not the kind that fills an editorial calendar.**


## How to check it

1. **Write in one line what your store is about.** It is Google's question about the site's primary purpose or focus: if it doesn't fit in a line, the topic is blurry.[^google-helpful-content]
2. **Check that every product page can be reached by following links** from the menu and the categories, without using the internal search: [Googlebot](/glossary/googlebot/) generally does not run searches in a search box to crawl a site.[^google-ecommerce-structure]
3. **Count the internal links your categories and key products receive.** What you link to most is what Google understands as most important within the site.[^google-ecommerce-structure]
4. **Look for your store outside your store.** See which sites in your industry link to or mention you: it is one of the quality signals Google describes.[^google-how-search-works]
5. **Go through the content that has nothing to do with what you sell** and decide whether it stays, gets rewritten or gets removed.[^google-helpful-content]

## Related concept: E-E-A-T

[E-E-A-T](/glossary/e-e-a-t/) is the framework Google uses to describe a page's quality, and its A is authoritativeness: Google says its systems look for signals about which content demonstrates expertise, authoritativeness and trustworthiness.[^google-how-search-works] The difference is one of level and origin. E-E-A-T is Google's vocabulary and applies to each page and to whoever signs it. Topical authority is industry vocabulary and is thought of at the scale of the whole site: **how much and how well it covers a topic**. [Semantic SEO](/glossary/semantic-seo/) is the usual way of working on it: organizing content by topics and [entities](/glossary/entity/) instead of by isolated keywords.

To go further, [helpful content](/glossary/helpful-content/) explains what Google asks of each page, and the [AI search reading path](/learn/ai-search/) orders the rest of the terms.