Every business website in Spain needs an aviso legal under Article 10 of the LSSI-CE (Ley 34/2002 de Servicios de la Sociedad de la Información y de Comercio Electrónico), giving your name or company name, NIF, address, email and, for companies, Registro Mercantil details. Since the AEPD’s updated cookie guide took full effect on 11 January 2024, a banner that offers “Aceptar” must offer “Rechazar” at the same level. Rather than start with the law, we start with a typical (hypothetical) business and show how each rule lands on its website.
Worked example: a dental clinic in Barcelona
Picture a clinic in Gràcia run as a sociedad limitada, with three dentists, two hygienists, a receptionist and a practice manager. Patients find it through Google and recommendations, then call or send a message to book a first visit. The owners want a site that wins new patients from searches such as “dentista Gràcia” and “implantes dentales Barcelona”.
Here is what its website needs, in the order a patient would notice it:
- 1Pages for the main treatments, each with what happens, how long it takes and a price “desde”, plus a team page with each dentist’s name and photo.
- 2Each dentist’s colegio profesional and número de colegiado. Dentistry is a regulated profession, and the aviso legal must show this information.
- 3The aviso legal itself: the S.L.’s name, CIF, registered address, email, phone and its Registro Mercantil entry.
- 4A política de privacidad explaining what the appointment form collects. The form asks only for name, phone and preferred time; health questions wait for the visit, not an open web form.
- 5A cookie banner only if the clinic runs advertising or analytics tools that need consent. Without them, a short política de cookies explaining the technical cookies is enough.
- 6Both Spanish and Catalan versions of the key pages, because the clinic is in Barcelona (more on that choice below).
This is a 15 to 25 page site once treatments and two languages are counted, which matches Adyft Sites Growth at $3,499 setup plus $129 a month (ask us about the Catalan pages before you order), with online appointment booking added for $399 plus $25 a month if the clinic wants it.
What must the aviso legal include under LSSI Article 10?
INCIBE, Spain’s national cybersecurity institute, summarises Article 10 for businesses. The information must be available permanently, easily, directly and free of charge, so a footer link on every page is the normal approach.
- 1Company name (denominación social) and trade name if different.
- 2NIF for a sole trader (autónomo), or the company’s tax ID.
- 3Address.
- 4Email address, plus phone if you have one.
- 5Registro Mercantil details (volume, folio, sheet) for registered companies.
- 6For regulated professions: the professional college and membership number, the official title and the country that issued it.
- 7Any authorisation your activity needs, with the authority that granted it.
The duty is broad. It covers company sites, online shops and even blogs that carry advertising. Commentators quote substantial fines for leaving it out, but the practical risk is simpler: Spanish customers and banks look for a CIF or NIF, and a site without an aviso legal looks unfinished.
What does the AEPD require on a cookie banner since 2024?
The cookie rule itself sits in Article 22.2 of the LSSI. In July 2023 the AEPD updated its cookie guide to match European guidance and gave websites until 11 January 2024 to adapt. Law firms summarise the main changes this way:
- 1If the banner has a button to accept, it needs a button or equivalent to reject, labelled plainly, such as “Rechazar”.
- 2Accept and reject must appear at the same level and in similarly visible formats. You cannot make “Aceptar” large and green and hide rejection behind “Configurar”.
- 3A banner that offers only “Aceptar” and “Configurar cookies” no longer passes.
- 4Non-essential cookies must not run before the visitor chooses.
Many Spanish small business sites still show the old two-button banner. Checking yours takes ten seconds. And as with every country, the easiest way to comply is to carry fewer trackers: no ad pixel means much less to ask permission for.
💡 Three documents, three footer links: Aviso legal, Política de privacidad, Política de cookies. Plus a banner with “Rechazar” beside “Aceptar” if you use any non-essential cookies.
Should my website be in Spanish, Catalan or both?
Castilian Spanish reaches everyone in Spain. In regions with a co-official language, a second version can win local trust and match how people search, but it doubles the pages to write and keep up to date. A practical guide:
| Where you trade | Language choice we suggest | Reasoning |
|---|---|---|
| Madrid, Andalusia, most of Spain | Spanish | One language covers your market |
| Catalonia | Spanish and Catalan for main pages | Many locals search and expect to be served in Catalan |
| Valencian Community, Balearic Islands | Spanish, add Valencian or Catalan if your customers are mainly local | Depends on how much of your trade is local versus visitors |
| Basque Country, Galicia | Spanish, add Basque or Galician for public-facing local services | Valued locally, though most searches are in Spanish |
| Tourist areas (coasts, islands, city centres) | Spanish plus English, and other languages your visitors speak | Visitors search in their own language for restaurants, rentals and services |
If you build two or more languages, give each its own pages and web addresses, with a visible switch between them. Machine-translating the Spanish text and pasting it underneath reads badly to native speakers and does little for search.
How do people in Spain search for a business?
Mostly on Google. StatCounter put it at about 93.8% of searches in Spain in September 2026, the highest share of the ten European countries we looked at, with Bing at about 3.5% and Yahoo near 2%. That makes the Google Business Profile the single most important listing for a local business: correct hours (including summer timetables and August closures), category, photos and replies to reviews.
Searches are usually the service plus a neighbourhood or town, which is why the Barcelona clinic names Gràcia in its headings and has a page per treatment. A short submission to Bing Webmaster Tools covers most of the remaining searches.
How much does a website for a small business cost in Spain?
One Spanish guide from a hosting company, dated November 2025, gives these figures: about €800–1,400 for a one-page site, around €2,000 for a corporate site for a pyme, €1,500–2,000 for a corporate site on a popular open-source platform, €1,500–5,000 for an online shop and €6,000–10,000 for custom development. One agency notes that the same company can receive quotes from €400 to €15,000 for similar projects, which shows how much depends on what is included.
The questions to ask every supplier: who writes the text, who prepares the aviso legal and cookie set-up, what hosting costs after year one, and how much a small change costs after launch. Adyft Sites prices in US dollars and bundles the writing, hosting and small changes. Starter is $1,499 plus $69 a month for five pages; Growth is $3,499 plus $129 for 25. The monthly fee covers hosting with SSL, security updates, small edits you send by WhatsApp, Google and AI-search set-up and a visitor report every month.
When does the European Accessibility Act start to apply as a business grows?
The Act has applied since 28 June 2025 to certain consumer services, including e-commerce. Microenterprises are exempt from the service requirements, and the test is size: fewer than 10 people and annual turnover or balance sheet of no more than €2 million. Count everyone who works for the business, not just the owners.
That is where the Barcelona clinic is instructive. With seven people it is a microenterprise today. Hire three more and it is not. Its website presents treatments and takes appointment requests; it does not sell to patients online, so it is unlikely to be the kind of e-commerce service the Act targets. But if it later adds online payment for treatments or products, and has passed ten staff, it should ask its adviser whether the Act applies and test the site against WCAG 2.1 AA, the level behind the European standard EN 301 549.
Whether or not the law applies, readable contrast, real headings, labelled form fields and descriptions on photos help patients with poor eyesight and help search engines. Ask any provider, us included, how they handle them.
What changes if you sell online in Spain?
Once customers order and pay on your site, you also need clear general conditions of sale, prices with taxes, delivery terms, and information about the 14-day right of withdrawal that consumers have for most online purchases. Perishable goods and made-to-order items are among the exceptions. And if your site still links to the EU online dispute resolution platform, remove it: the platform closed on 20 July 2025.
Is Adyft Sites a good choice for a Spanish business?
It suits owners who want a correct, well-written site without managing designers, cookie tools or hosting. You answer questions on WhatsApp; we write each page, add the aviso legal and privacy pages with the details you give us, and maintain everything. We add the pages; the legal wording should be checked by your adviser. If you need every page in Spanish or Catalan, ask us before you order. Your domain is registered in your name, the FAQ, Contact and Privacy pages are free, and the Starter plan goes live in under seven days. Browse the 42 industry designs to see how a clinic, a restaurant or a trade site is laid out.
It is not the best choice for a large custom build, such as a booking platform tied to clinic management software, or for owners who want meetings in person with a designer in their city. For those, a local agency or freelancer is the better route; for owners who enjoy doing it themselves, a DIY builder costs less.
Questions about aviso legal, cookies and languages in Spain
Is an aviso legal mandatory for an autónomo’s website?
Yes. Article 10 of the LSSI applies to anyone offering services through a website as an economic activity, including sole traders. An autónomo shows name, NIF, address and email, and professional college details if the profession is regulated.
Is a cookie banner with “Aceptar” and “Configurar” still valid in Spain?
No. Under the AEPD guide updated in 2023, with an adaptation period that ended on 11 January 2024, a banner with an accept button needs a reject option at the same level and with similar visibility.
Do I need a cookie banner if I only use technical cookies?
Not a consent banner. Cookies that are strictly necessary to provide the service the visitor asked for are exempt from consent, but you should still explain them in your cookie policy.
Should a business in Catalonia have its website in Catalan?
For a business serving local customers, offering Catalan alongside Spanish is usually worth it for trust and local searches. Regional consumer and language rules can also apply, so check with your chamber of commerce or adviser.
Do dentists, lawyers and other professionals need to show their colegiado number?
Yes. For regulated professions, the aviso legal must state the professional college and membership number, the official professional title and the country that issued it.
How much does a small business website cost in Spain?
One Spanish guide puts a corporate site for a pyme at around €2,000 and a one-page site at €800–1,400, but quotes for similar projects range from €400 to €15,000. Adyft Sites Starter is $1,499 plus $69 a month with writing and hosting included.
Sources: INCIBE, aviso legal — https://www.incibe.es/empresas/blog/aviso-legal-parte-importante-tu-web · Legal Today, legal aspects of a website — https://www.legaltoday.com/practica-juridica/derecho-civil/nuevas-tecnologias-civil/aspectos-legales-de-una-pagina-web-2015-03-24/ · Cuatrecasas, new AEPD cookie criteria in force — https://www.cuatrecasas.com/es/spain/propiedad-intelectual/art/entra-vigor-nuevo-criterio-aepd-uso-de-cookies · Hosteltur, AEPD cookie criteria countdown — https://www.hosteltur.com/comunidad/005597_cuenta-atras-para-adaptar-las-cookies-a-los-ultimos-criterios-de-la-aepd.html · AEPD cookie guide — https://www.aepd.es/documento/guia-cookies.pdf · Spanish price guide published by a hosting company (November 2025, read 15 October 2026) · A Spanish business magazine quoting a web agency on the €400–15,000 quote range ·European Accessibility Act, Art. 4 — https://www.legislation.gov.uk/eudr/2019/882/article/4 · Your Europe, returns and withdrawal — https://europa.eu/youreurope/citizens/consumers/shopping/returns/index_en.htm · ODR platform closure — https://cms.law/en/deu/legal-updates/the-odr-platform-is-closing-what-businesses-need-to-know · StatCounter, Spain search share — https://gs.statcounter.com/search-engine-market-share/all/spain
A Spanish business site, written and run for you
Answer a few questions on WhatsApp. We write every page, add the aviso legal and privacy page with your details, and host and maintain the site. Starter is $1,499 plus $69 a month.