I work with businesses across all twenty arrondissements of Paris, on both banks of the Seine. In practice that means a workshop in Batignolles in the 17th, a boutique in Montmartre in the 18th, a practice near Passy in the 16th, a restaurant by the Buttes-Chaumont in the 19th, shops in Ménilmontant and Belleville in the 20th, Vaugirard in the 15th or Montparnasse in the south. Each neighbourhood has its own search habits, and the site uses the words your customers actually use when they talk about their corner of Paris, which is rarely the official district name.
I also cover the towns that touch Paris, because a tradesperson in the 20th works in Montreuil and Bagnolet, and a shop in the 15th gets customers from Issy-les-Moulineaux and Vanves. The site can therefore speak about Boulogne-Billancourt, Montrouge, Ivry-sur-Seine, Vincennes, Pantin, Saint-Denis, Saint-Ouen-sur-Seine, Clichy, Levallois-Perret or Neuilly-sur-Seine, depending on where you really go. I do this by naming the towns you serve, never by pasting a list of places to fool Google, because that habit always ends up hurting the site that tries it.
The trades I meet most in Paris fall into the four big sectors of the craft economy tracked by the Chambre de métiers et de l'artisanat, meaning food, services, manufacturing with the art crafts, and building. According to the 2024 figures published by the CMA Île-de-France, Paris has 64,507 craft businesses, the highest count of any department in the region. The city's 2023 census also notes growth in food shops, bike shops, fitness and body care businesses and second hand clothing stores, all of which live on customers from their own neighbourhood and therefore on being found there.
Take an electrician based in the 20th who also works in Montreuil and Bagnolet. The site would have a home page that says in one sentence what he does and where, a page for "électricien Paris 20" with response times and call out fees, one page for Montreuil and one for Bagnolet, a page about bringing an electrical panel up to standard with photos of real jobs, and a contact page with a call button that works on a phone. Each page answers one precise search, and that's what makes it show up when someone in the neighbourhood needs a repair the same evening.