SEO by Industry: How the Work Changes With What You Sell and Where You Sell It

One search engine, very different contests

Google does not keep a separate algorithm for plumbers. Its crawler reads a law firm's site the way it reads a bakery's, and the same ranking systems sort both. What differs is the search. Someone typing "water heater repair" wants a truck in the driveway this afternoon, and Google answers with a map. Someone typing "payroll software for restaurants" wants a comparison, and Google answers with vendor pages, reviews and articles from three time zones. Someone typing "car accident lawyer" is about to make a decision that Google handles with extra care.

So the useful question for any business is not whether it needs SEO. It is which contest it has entered. Three questions sort almost every business, and each one moves the hours and the budget somewhere different. The SEO guide covers the mechanics every site shares; this section covers what changes on top of them, one business type at a time.

• Do customers need you within driving distance? If yes, the map results and your Google Business Profile carry much of the weight. If no, you compete with the whole country on content and links.
• Does a rulebook sit above Google's? Lawyers, real estate agents, financial advisers and health practices answer to regulators about what an ad or a web page may claim.
• One door or many? A single shop has one profile and one address to keep straight. A franchise or a firm with six offices has six of each, and a spam policy waiting for whoever takes the shortcut.

Near me or nationwide: the question that splits the playbook

When a search has local intent, Google shows a map with a short list of businesses and fills it using three signals named in its own help center: relevance, distance and prominence. Google's explanation defines prominence as how well-known a business is, and states flatly that there is no way to request or pay for a better local ranking. That makes a complete Google Business Profile, real reviews and consistent listings the first job for a contractor, a clinic or a restaurant. The local SEO guide covers that contest in depth, and the map pack audit shows where you stand in it.

A business that sells to customers anywhere skips the map and walks into a harder room. A software company, an online store or a manufacturer shipping parts across the country competes with every vendor in its category, plus the review sites and trade publishers writing about them. The work becomes content that answers buying questions better than anyone else's, pages for comparisons and use cases, and links earned from the trade press. The guides to SaaS SEO, B2B SEO and e-commerce SEO cover those versions.

Plenty of businesses straddle the line. A Hill Country winery sells tastings to visitors and bottles by mail. A San Antonio law firm takes clients from one county but competes for attention with national legal directories. Work out which searches actually pay the bills, then decide which contest gets the first year of effort and which waits.

Regulated businesses answer to two rulebooks

Google gives some subjects extra scrutiny. Its guidance on creating helpful content says its systems give even more weight to content that shows strong experience, expertise, authoritativeness and trustworthiness when a topic could significantly affect people's health, financial stability or safety. Google calls these Your Money or Your Life topics. A tax firm, a dental practice, a mortgage lender and a criminal defense lawyer all live there, and thin pages with anonymous advice fare worse for them than for a pizza shop. The E-E-A-T guide shows what a business can put on the page to earn that trust.

Then comes the second rulebook. Regulators decide what an advertisement may say, and a website or a social post usually counts as one. A few examples worth knowing before anyone writes a word:

One door or many: locations change the arithmetic

A single location keeps one name, one address, one phone number and one profile straight. Add a second office and every listing, review request and page doubles, along with the ways each can go wrong. Google's Business Profile guidelines allow one profile per location, ask service-area businesses to hide their street address from customers, and rule out a virtual office the business does not actually operate from.

The website has its own trap. Google's spam policies describe doorway abuse, and the first example listed is multiple pages or domains aimed at specific regions or cities that funnel visitors to one page. Forty town pages with the town name swapped is the classic version. The service area page guide has the test for when a town earns a page, and the multi-location SEO guide covers franchises and firms with several offices.

• Its own verified Business Profile, with the categories, hours and photos of that location, not the head office.
• A location page that says something true and specific: who works there, how to find it, which services that office offers, and reviews from its own customers.
• Reviews requested and answered per location, so a strong office cannot hide a weak one.
• One named person responsible for every listing, so a closed office stops taking calls the week it closes.

Every guide in this section, matched to the business it was written for

Find the row that looks like your business. The guide in the third column covers your version of the job; the last column points to the industry pages that sit beside it.

Two directories sit behind this table. The industries pages describe what DataCram builds and runs for each kind of business, from contractors to clinics. The AI search by industry pages describe how ChatGPT, Gemini, Perplexity and Google's AI answers treat each trade, which directories they lean on and what a business in that trade can fix. If your business is missing from the table, one of those two lists probably has it.

The floor under every business type

Under every variation sits the same floor. Google has to find and keep the pages, each page has to say plainly what it is about, the site has to work on a phone, and somebody outside the business has to vouch for it. Industry tactics built on a site that fails those checks are wallpaper in a house with no foundation.

1. 1

   Make the site readable

   Search Console is free, and Google says you do not have to sign up for it to appear in results. It is still the only place Google tells you which pages it kept and which it dropped. The technical SEO guide covers the rest of the plumbing.

2. 2

   Give every profitable search its own page

   A Services page with ten bullets ranks for none of them. The guide to how many pages a site needs and the on-page SEO guide show how to build each one.

3. 3

   Earn proof from outside

   Reviews, listings, links and mentions are how Google and the AI engines judge whether anyone else trusts you. The link building section covers the honest ways to earn them.

4. 4

   Count calls, not positions

   A ranking report is a weather vane. Calls, forms and booked jobs are the harvest. The SEO KPIs guide lists the numbers worth a monthly look.

AI answers did not replace the floor. Google's AI optimization guide says its AI features are rooted in its core ranking systems, and that Business Profiles help local businesses and services appear in AI responses. The GEO versus SEO comparison explains where the two jobs part ways, and the free AI visibility check shows whether ChatGPT and the others name your business today.

When your type of business is the reason to hire help

Some versions of SEO are reasonable to run alone. Google's own page on whether you need an SEO says a small local business can probably do much of the work itself, and the small business guide shows how to divide the hours. Other versions punish amateurs. Watch for these signs:

• You answer to a regulator and nobody checks web copy against the rules before it goes live.
• You run more than one location and the listings no longer agree with each other.
• You sell nationally and your competitors publish more in a month than you have in a year.
• The site itself is the obstacle: slow, hard to edit, or built so its text appears only after scripts run.
• You have tried to do it alone twice, and both times the work stopped during the busy season.

The algorithm is the same for everyone. The contest is not.

DataCram's SEO service is month to month with a defined scope. Programs start at $625 a month, and most local businesses land between $625 and $2,250 a month, per the SEO pricing page; the tier depends on how competitive the searches are and how much the site and listings need. When the website itself is the problem, custom builds start at $1,750. Before any of that, the free visibility check shows where you appear in search and maps for your customers' own terms.