Here is a pattern we see constantly in audits. A business has done the standard SEO checklist: clean technical setup, keyword-mapped pages, decent content, a few links. Rankings still go nowhere. Meanwhile a competitor with a worse website sits on page one.
Nine times out of ten the difference has nothing to do with effort. The checklist was written for the average website, and no industry is average.
After running campaigns across legal, healthcare, finance, SaaS, ecommerce, hospitality, and a dozen other verticals, we have a simple model for why the same tactics produce different results in different industries. Four forces change the playbook. If you know how they apply to your vertical, you can predict what will work before you spend a euro.
Force 1: How hard Google scrutinizes trust
Google does not apply the same ranking standards everywhere. In YMYL (Your Money or Your Life) categories, anything touching money, health, or legal outcomes, expertise signals carry far more weight than in hobby or entertainment niches.
This is why law firm SEO lives or dies on attorney bios, bar admissions, and case results, and why paid search for law firms is its own discipline. It is why healthcare SEO campaigns that skip medical reviewer credentials stall no matter how good the content reads. And it is why financial services SEO and insurance SEO need credentialed authors before they need more blog posts.
The scrutiny is heaviest in the regulated-and-risky corner: crypto SEO and iGaming SEO, where AI engines add their own caution on top of Google's. We have written up the gambling version in iGaming SEO in the age of AI search and the exchange version in how to rank a crypto exchange.
The practical test: search your main keyword and look at who ranks. If the top ten are full of credentials, regulator references, and named experts, you are in a scrutiny-heavy vertical and trust work comes before content volume.
Force 2: How local the intent is
Some industries are decided in the map pack. When someone searches for a dentist, an accountant, or a lawyer, Google assumes local intent and serves local results, which means Google Business Profile, citations, and reviews often matter more than your domain authority.
This completely reorders priorities. For dental SEO, review velocity and treatment pages targeting "implants in [city]" beat national content plays every time; our local dentist SEO guide walks through that playbook. Same story for accounting SEO, where the searches that sign clients are "accountant near me" and "small business tax accountant [city]", not generic tax guides. Even a national specialism like R&D grant consulting wins on specific, intent-heavy queries rather than broad guides.
Compare that to SaaS SEO, where local intent is nearly zero and the battle happens on comparison and alternatives pages instead, the pattern we broke down in how to rank for B2B. Run a local playbook for a SaaS product, or a national content playbook for a dental practice, and you will work hard to lose.
Force 3: Who already owns the SERP
Every vertical has incumbents that shape what is winnable. In real estate, the portals own the head terms, so the open territory for real estate SEO is neighbourhood expertise and development pages. In hotels, the OTAs dominate "hotels in X", which makes direct-booking SEO a game of destination content and profile optimisation rather than head-on keyword fights.
In ecommerce, marketplaces and giant retailers hold the category head terms, which is why ecommerce SEO returns come from long-tail category architecture and product page templates rather than chasing the one big keyword.
The lesson transfers everywhere: map who holds the top ten before you pick targets. If the answer is "aggregators with a thousand times your authority", pick the queries they structurally cannot serve: local, specific, expert.
Force 4: How the industry's buyers are adopting AI search
The newest force, and the one moving fastest. Buyers in some verticals have already shifted a chunk of their research to ChatGPT, Perplexity, and Google AI Overviews. SaaS shortlists get formed in chat windows. Travelers ask AI assistants for hotel recommendations. Business owners ask which accountant setup fits a limited company.
The encouraging part: the inputs to AI recommendations overlap heavily with classic E-E-A-T work. Clear entity signals, structured data, third-party mentions, and content that actually answers the question. We have written before about how AI engines pick their citations, and the pattern holds across verticals: the businesses that win AI mentions are the ones whose expertise is machine-readable.
But adoption speed differs by industry, which changes how much of your budget should chase it today. We weight it heavily for SaaS and travel, moderately for legal and healthcare, and lightly (for now) in trades and local services.
What this means in practice
When we scope an engagement, the first deliverable is not a keyword list. It is a read on these four forces for the specific vertical: how much trust scrutiny applies, how local the intent is, who owns the SERP, and how far AI adoption has moved the buyers. The tactics fall out of that read almost automatically. It is where every engagement starts, including the UK SEO programmes we run for regulated brands.
That is also why we publish dedicated playbooks per sector rather than one generic services page. You can see the full set on our industries hub, each one built around how that vertical's buyers actually search, right down to niches like recruitment SEO.
And if you want the honest version for your own site: run the test from Force 1. Search your money keyword, study the top ten, and ask what they have that you do not. The answer is usually one of the four forces above, and it is almost never "more blog posts". If you would rather we ran that read for your vertical, a free SEO review is where every engagement starts.
