Does GTM Server speed up the site?

Not automatically. Server-side only makes the page lighter if scripts are removed from the browser, for example advertising pixels replaced by server-side sends. If every pixel stays in place, the gain is small. When scripts are removed, loading improves, which benefits user experience and, indirectly, SEO through Core Web Vitals.

I have a showcase site, is advanced tracking necessary?

For a simple showcase without advertising, basic Analytics is sufficient. However, if you are doing SEO or local campaigns, understanding user behavior (time spent, clicks on "contact") through GTM remains valuable.

Is the cookie banner mandatory for a 100% Swiss site?

Not strictly under the FADP, but in practice almost always. In Switzerland, Art. 45c of the Telecommunications Act requires informing visitors about cookies and letting them refuse, and the FADP requires transparent information (privacy policy). Swiss law therefore does not impose a prior-consent banner for a purely Swiss audience. However, Google has applied its EU user consent policy to Switzerland since 31 July 2024: to use Google Ads fully (remarketing, audiences, conversion measurement), you must collect consent and pass it on through Consent Mode v2. As soon as you also target EU visitors, prior consent is required. For a commercial website, a CMP remains the safest option.

What is the major difference between the FADP (Switzerland) and the GDPR (EU) for a website?

Although very similar, the FADP (Federal Act on Data Protection) favors a risk-based and transparency approach, while the GDPR imposes a stricter framework on prior consent. However, if you are targeting European customers, you must comply with the GDPR, which is the highest standard.

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