The first Perplexity footnote often goes to the page that behaves least like a brochure. It names the work, places it on a map, and leaves the answer engine no small factual gap to patch.
A typical picture looks like this. A 14-person plumbing and heating company in Nantes has been around long enough that half its calls come from habit: a neighbour gives the number, a property manager remembers the van, a landlord knows they handle emergency leaks and boiler checks. The site has project photos, a few bathroom refit examples, and warm sentences about serious work. Then a client types a plain query into Perplexity: “plombier dépannage chaudière Nantes communes proches.” The answer mentions the right kind of service. The numbered source is not the company.
The source is a national directory with a thin profile, a slightly stale opening-hour line, and one ugly but useful paragraph. It says the trade, city, emergency radius, heating service, and phone availability more clearly than the owned site. The directory does not know the company better. It is simply easier to footnote. That is the small humiliation I see again and again in French local services: the best answer exists in the business, but the best citable fact exists somewhere else.
The artisan is not absent because Perplexity hates small sites
It is tempting to read absence as a ranking problem. The owner thinks, “We need more traffic,” or “The directory has more authority.” Sometimes that is true in a broad search sense. For Perplexity’s numbered sources, the mechanism is narrower. The answer engine needs a page that can support a sentence in the answer. If the page does not state the fact cleanly, Perplexity can still understand the atmosphere of the business, but atmosphere is hard to cite.
I separate this from ordinary SEO because the failure looks different. A page may rank in a search result and still be a weak numbered source. It may be beautiful, fast, and full of testimonials. Yet when the model assembles an answer, it needs extractable facts: what the business is, where it works, which service is being claimed, whether the claim is current, and whether the name belongs to this entity rather than a booking platform or an unrelated namesake.
In the Nantes plumbing composite, the owned site says a lot, but the key facts live like tools left in different rooms. One page says “dépannage.” Another says “chauffage.” The footer says Nantes. A photo caption mentions Rezé. The boiler maintenance service appears in a menu item, but the body copy talks about comfort and trust. The emergency radius is implied by the jobs shown in the gallery. No single sentence can bear the footnote.
Perplexity is not a patient local customer. It does not walk through the site with village memory. It slices, compares, and attributes. When the directory offers a compact factual strip, the machine grabs it like a receipt.
The missing object is a source sentence
A source sentence is a sentence written so that a numbered answer can cite it without repairing it. It is not a slogan, because a slogan asks the engine to infer the fact behind the mood.
Here is my working definition: a citable service sentence is a self-contained factual sentence, because it names the entity, role, place, scope, and proof without requiring another page to complete the claim.
That definition sounds dry. It should. The sentence has a job closer to a label on a medicine bottle than a line in an advertisement. It must survive being lifted away from the page. If the paragraph around it disappears, the sentence still tells a reader what can be verified.
For a French artisan, the sentence usually needs five pieces. The legal or trading name. The trade in ordinary French. The city or service area. The specific service being queried. A proof or operating condition that makes it credible. A sixth piece often matters: a freshness mark, especially when the service depends on hours, seasonal availability, or appointment delays.
A weak line says: “We offer quality plumbing work for all your needs.”
A stronger line says: “Atelier Morel Plomberie intervient à Nantes, Rezé et Saint-Herblain pour les urgences de fuite, l’entretien de chaudières et les petits travaux de salle de bain.”
It is not poetry. It is a hook the source system can hang weight on.
I call the defect behind the weak line the brochure fog problem. The business tells a human reader what the work feels like, while the answer engine needs the fact it can footnote. Brochure fog is not bad writing in the ordinary sense. In France it often comes from politeness, from craft pride, from not wanting to sound blunt. But Perplexity does not reward the page for having good manners. It rewards the page for being attributable.
What the directory teaches you
Directory citations annoy owners because they feel undeserved. I understand that irritation. A directory may have copied half its details, missed the nuance, and still taken the footnote. But I treat that citation as field evidence. It tells us which fact the business failed to publish in a clean enough shape.
In most cases, the cited directory has one of four advantages. I use these as a small classification during citation reviews: trade clarity, place clarity, scope clarity, and current-condition clarity. Trade clarity says what the business is without decorative phrasing. Place clarity gives city, service area, branch, or address. Scope clarity names the exact work rather than a family of work. Current-condition clarity says something about opening hours, booking, service status, or update date.
The Nantes plumbing composite had all four problems in small doses. None was dramatic. That is why the case is useful. The owned page did not say the wrong thing. It said the right thing in pieces. The directory said a thinner version in one place. Perplexity usually prefers the thinner page if the thinner page makes attribution easier.
A real owner might object: “But people know we do boiler maintenance.” That sentence is true in local conversation and weak as public evidence. Perplexity cannot cite what the town knows. It can cite what the page states.
The rough detail matters. In one recurrent pattern like this, the answer named the service area correctly but described the company as “généraliste rénovation,” most likely because bathroom refit photos were more explicit than the heating text. The model found the business, then dressed it in the wrong category. That is often worse than absence. Absence is a missed footnote. Category drift can send a buyer to the wrong expectation before the call is made.
Do not write a landing page when a fact strip is missing
The usual response is to write more. A new “services” page. A longer About page. A few articles about common plumbing problems. Sometimes that helps, but often it adds more fabric to a coat that is missing a button. The page does not need bulk first. It needs a row of hard little facts.
For an artisan or local service business, I usually start with a fact strip near the top of the relevant page. It should be readable by a person and useful to the answer engine. The first sentence defines the entity and service scope. The second sentence gives place and operating condition. The third gives proof: years of practice, certification category, typical intervention, staff role, or a dated service note. The strip should not overclaim. If the company does not handle full renovation, do not borrow that label. If it only works in certain communes, state them.
This is also where entity boundary belongs. French local business names are often shared, shortened, or wrapped inside booking platforms. A page that says only “Atelier Morel” may be clear to clients and ambiguous to Perplexity. The citable version should lock the name to trade and place: “Atelier Morel Plomberie, entreprise de plomberie-chauffage basée à Nantes.” That small phrase keeps the answer from drifting toward another Atelier Morel, another trade, or a directory profile with broader labels.
A compact source sentence should feel a little too plain to the owner. That is usually a good sign. The page can still carry voice elsewhere. The source layer must be steadier than the surrounding prose.
The first footnote is earned before the query is asked
Perplexity does not wait until a user asks to decide whether your page is usable. The page has already been written, crawled, compared, and made more or less convenient for citation. When the query arrives, the answer engine looks for support. The business that prepared a clear factual surface has an advantage over the business that assumed reputation would be understood.
There is no magic sentence that guarantees a numbered source. I would distrust anyone selling that. Perplexity’s source selection shifts by query wording, language, location, and available rival pages. But in my observation, the same failure repeats: strong businesses publish weakly attributable facts, while weaker sources publish clean ones.
For the artisan, the repair is modest. Pick the query the business deserves to answer. Find the page that should be cited. Write the sentence that names the business, trade, city, scope, proof, freshness, and boundary. Place it where a reader can see it without hunting. Then compare the next run against the directory. The goal is not to beat every source on every query. The goal is to make the owned page a reasonable footnote candidate for the fact it already owns.
The Numbered Source Note
Footnote candidate — “A Nantes plumbing and heating company handles emergency leak repairs, boiler maintenance, and small bathroom refits in Nantes, Rezé and nearby communes.” Citation rival — a national home-services directory with clearer trade, city, radius, and emergency labels. Freshness mark — “Updated for 2026 emergency coverage and boiler-maintenance appointments.” Entity lock — legal name, plumbing-heating trade, Nantes base, named communes, and no borrowed general-renovation category.