Entity-Based SEO for Marine Businesses: What Structured Data Actually Does
Someone has probably pitched you on this already. Add structured data to your site, the argument goes, and AI assistants will start recommending your marina, your brokerage, your yard. Schema is the key to AI search, and you are being left behind without it.
Google says otherwise, in writing, in its own documentation. Its guidance on optimizing for generative AI features states that structured data is not required for generative AI search and that there is no special schema.org markup to add for it. The guide lists overfocusing on structured data as a mistake to avoid.1
That does not mean structured data is worthless. It means the reason you were given for it was wrong, and the real reasons are less dramatic and more durable. It’s worth knowing the difference before you pay for either.
What Entity-Based SEO Actually Means
Strip away the jargon, and entity SEO describes something simple. A search engine does not read your website the way a customer does. It builds a record of what your business is, where it operates, what it sells, and how that connects to everything else it knows.
An entity, in this sense, is your business as a thing the engine has a record of, rather than as a collection of pages. Structured data is one way you contribute to that record directly, in a format that requires no interpretation. Instead of an engine inferring from your homepage that you are probably a boatyard in Fort Lauderdale with these hours, you state it in a form that leaves nothing to infer.
That is the actual job. Not persuasion, not a ranking lever. Description.
Why Description Is Harder for Marine Businesses
Generic advice assumes an ordinary storefront. Marine businesses are rarely ordinary in the ways that matter here.
A yard may have a mailing address and a separate dock address customers actually use. A brokerage may operate from an office while its inventory sits across several marinas. Seasonal operations change hours twice a year. A mobile marine mechanic covers water rather than a list of towns. Every one of those is a place where an engine has to guess, and guessing is what entity-based SEO exists to prevent.
Local business schema lets you state the canonical version once, in a machine-readable form, on the site you control. That matters more when the surrounding signals are messy, which in this industry they usually are.
Getting that right is groundwork for everything else in organic search, not a bolt-on.
Which Schema Types Still Earn Something
This is where the practical advice has changed recently, and a lot of published guidance has not caught up.
Structured data produces rich results only for the features Google still supports, and that list has been shrinking. FAQ rich results were deprecated on May 7, 2026, and no longer appear in Google Search for any site.2 They had already been restricted to well-known authoritative government and health websites since 2023, so for most businesses they had been functionally invisible for years before that.3 HowTo rich results went the same way earlier. FAQPage remains a valid schema.org type, and Google has said unused structured data causes no problems for search, so nobody needs to rush to strip it out.3 But implementing it now for search visibility buys nothing.
What still earns display in search for businesses in this sector is the ordinary set of LocalBusiness, Organization, Product, Event, and Review markup. Organization schema and local business schema are the two that most marine businesses should have and often do not, because they describe the entity rather than a page.
One rule governs all of it. Google asks that structured data stay consistent with what is actually on the page.1 Markup describing services you do not offer, or hours you do not keep, is worse than no markup at all.
Deciding which types apply to a given site is usually a job for an SEO audit rather than guesswork, because the answer depends on what the business actually does and what its pages actually say.
The Pattern Behind the Deprecations
It is worth understanding why FAQ and HowTo disappeared, because it predicts what happens next.
Both were heavily scaled by SEO tooling, added to pages to capture search real estate rather than to describe content honestly. Google’s response was not to police individual sites. It was to remove the feature.
The lesson is not that schema is dead. It is that markup added to game a display feature has a short life, and markup that genuinely describes a business does not. Anything sold to you on the basis of a visual SERP treatment is on borrowed time by design, which is worth remembering when a website rebuild is quoted with a list of schema types attached to it.
What Actually Drives AI Visibility
Since this is the question behind the original pitch, it deserves a straight answer.
Google’s generative AI features draw on its existing ranking and quality systems, surfacing content from the Search index.1 That is the core mechanism, and the implication is unglamorous. If your pages are not good enough and technically sound enough to rank in ordinary search, they will generally not be cited in an AI answer, either. There is no side door.
Google’s guidance also treats answer engine optimization and generative engine optimization as still being SEO rather than separate disciplines. It identifies several circulating tactics as unnecessary for its AI features, including llms.txt files, chunking content in a particular way, and AI-specific rewriting.1 It adds a caution worth repeating. No third-party tool has access to Google’s internal ranking or AI systems, so treat any product claiming to measure them accordingly.1
Off-site signals are a genuine part of AI visibility, but that is a separate subject from your markup, and the honest version of it does not involve schema at all.
What This Means for Your Budget
Schema markup for local business sites is worth implementing. It is cheap, it is permanent, it makes your information unambiguous, and it keeps you eligible for the search features that still exist.
It is not worth buying as an AI search product, and anyone selling it that way is either behind on Google’s documentation or counting on you being behind on it. The same money spent on pages that genuinely answer what your customers ask, on a site that loads and crawls properly, does more for both ordinary search and AI answers, because they run on the same machinery.
If you want a sequence, get your business described accurately and consistently, mark up what is true, fix the technical foundations, then write the content only your business could write. That last part is where the real separation happens, and it is the part no markup substitutes for. It is also why a consulting engagement here usually starts with what the site says rather than what it declares.
Mark the Chart Honestly
Entity-based SEO is a reasonable idea wrapped in an unreasonable amount of noise. The reasonable part is that search engines keep a record of your business and you should make that record accurate. The noise is everything claiming markup is a shortcut into AI answers.
Describe your business truthfully in a form machines can read, keep it matched to what is on the page, and spend the rest of your effort on being worth recommending.
If someone has quoted you for AI-specific schema work, get in touch before you sign it, and we will tell you what it will and will not do. Our news section covers more of what is actually working in marine search.
Sources
- Google Search Central, “Optimizing Your Website for Generative AI Features on Google Search,” Google for Developers, accessed September 30, 2026, https://developers.google.com/search/docs/fundamentals/ai-optimization-guide.
- Google Search Central, “Latest Documentation Updates,” Google for Developers, entry dated May 8, 2026, accessed September 30, 2026, https://developers.google.com/search/updates.
- Google Search Central, “Changes to HowTo and FAQ Rich Results,” Google Search Central Blog, August 8, 2023, https://developers.google.com/search/blog/2023/08/howto-faq-changes.
