Your Impressum is the most trusted page on your site. AI assistants read it too
Swiss and German law makes you publish who you are. That obligation happens to produce exactly the page answer engines use to decide whether a company is real. Seven lines that turn a legal footer into a trust signal.

Every Swiss company that sells online has to publish an Impressum: legal name, address, contact, often the UID. The German version, § 5 DDG, is stricter and older. Most sites treat it as a compliance page, written once by a lawyer, linked in eight-point grey in the footer, never read.
It is read. Not by many humans, but by the systems that decide whether to cite you.
What an answer engine wants to know about a source
When an assistant is deciding which of five retrieved pages to lean on, part of what it weighs, directly or through the search index behind it, is whether the source is a real, identifiable organisation. Google's quality guidelines have asked human raters the same question for a decade: who is responsible for this site, and can you find out. Pages that make that hard are marked down. Pages that answer it clearly are marked up.
For a Swiss or German company, the Impressum is where that answer already lives. It has the legal name, a physical address, a way to reach a human, a register number that can be checked. That is more than most American sites offer anywhere. The only problem is how it is usually published.
Seven things that make the page work for you
1. Plain HTML text, not an image and not a PDF. This still happens, for anti-spam reasons that stopped making sense years ago. An address in a JPEG is invisible to everything that matters.
2. The same name as everywhere else. If the Impressum says "Muster Treuhand AG" and the header says "MUSTER" and LinkedIn says "Muster Treuhand & Partner", you have three entities. Pick the legal name and use it on the homepage too, at least once, in text.
3. The register number, and a link to the register. The UID (CHE-xxx.xxx.xxx) or HRB number, linked to zefix.ch or the Handelsregister entry. That is a verifiable claim, the kind retrieval systems and raters both like, and almost nobody links it.
4. A named person. The managing director or the responsible editor by name. A company with a named human is harder to confuse with a shell.
5. Organization structured data that matches. JSON-LD on the Impressum, or sitewide, with legalName, address, taxID or identifier for the UID, founder or employee for the named person, and sameAs pointing to the register entry, LinkedIn and any other official profile. The machine-readable Impressum, saying the same thing as the human one.
6. Linked from every page, with the word Impressum. It is, legally. Keep it that way; do not hide it behind a hamburger menu on mobile.
7. Current. A moved company with the old address in the Impressum has told every system that reads it to trust the wrong address over the new one on the contact page.
The thing we see most often
An Impressum that is complete and correct, on a site where nothing else names the company. The homepage headline is a slogan, the about page is a story, and the only place the legal entity appears is the footer page the law required. The answer engine finds a brand voice with no body. Move one sentence from the Impressum to the first paragraph of the homepage, "Muster Treuhand AG is a fiduciary in Winterthur, founded 1998, CHE-123.456.789", and the body arrives.
Why this matters more now
For twenty years the point of being a verifiable company online was conversion: people buy from businesses that look real. Now there is a second buyer of that signal, and it reads faster and less forgivingly than a person. It also never lands on your homepage by accident and forms an impression. It retrieves, weighs, decides.
If you want to know how your site looks to that reader, the free analysis checks the trust signals on your pages, structured data included. The background on which signals weigh how much is in E-E-A-T for AI search.


