When consent is legally required
In the EU and UK: any cookie that is not strictly necessary for the site to function. That includes analytics cookies, advertising cookies, social-sharing cookies, and most A/B testing cookies. Strictly-necessary cookies (shopping cart, login session, language preference) do not require consent.
What the banner has to do
Three things, per GDPR guidance from 2023: it must let users say "no" as easily as "yes" (so a single "Accept all" button with no easy "Reject" is illegal). It must NOT pre-tick consent boxes. It must let users withdraw consent later as easily as they gave it.
The cost of banners
Cookie banners measurably reduce analytics traffic — some visitors refuse consent, some leave the site before deciding. Independent research has put the loss on the order of "a meaningful share of visitors" (see, for example, Toth et al., Princeton, 2021). They also slow page load and reduce landing-page conversion. The privacy-and-revenue trade-off is real.
How cookieless analytics avoids the banner
A cookieless analytics platform does not set cookies in the visitor browser, so it does not trigger the cookie-consent requirement. Several European data-protection authorities — including the French CNIL — have indicated that fully aggregated, non-identifying measurement is treated differently from cookie-setting analytics. Rules vary by jurisdiction; always confirm specifics with your own legal counsel.
Going cookieless: practical steps
Switch your analytics to a cookieless platform like BYOViral, Plausible or Fathom. Remove the analytics-cookie banner. Keep any banner you still need for advertising cookies (separate, often via Google Ads or Meta Pixel). Document the change in your privacy policy.
Frequently asked questions
Can I use Google Analytics without a cookie banner?
In the EU/UK — no, because GA4 sets cookies. Outside the EU/UK the answer varies by jurisdiction.
Is "implied consent" enough?
Not under GDPR. Consent must be explicit, opt-in, and as easy to withdraw as to give.
Does BYOViral need a cookie banner?
For analytics purposes, no — BYOViral sets no cookies. If you run other cookie-setting services (ad pixels, A/B testing), you still need a banner for those.
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