What are website cookies and how do they affect your marketing?
A website cookie is a small text file stored on a visitor's browser when they land on your site. Cookies remember information between pages and between visits, which is what makes features like shopping baskets, logged-in sessions and analytics possible. For small business owners, cookies directly affect how you track visitors, run ads and stay compliant with UK data protection law. This guide explains the types of cookies, why they matter for your marketing and what the shift to a cookieless web means for your business.
What cookies do for your marketing
Cookies are the foundation of most digital marketing measurement. Without them, Google Analytics cannot tell the difference between a new visitor and a returning one. Your ad platforms cannot show a Facebook ad to someone who already visited your site. And your email marketing platform cannot track whether a click through from a newsletter led to a sale.
The practical uses fall into four buckets. Analytics cookies count visits and page views so you see which pages and campaigns drive traffic. Conversion tracking cookies record when a visitor completes a purchase or fills in a form so you know which ads and keywords delivered the result. Retargeting cookies let you show ads to people who visited your site but did not buy, which is how the Home Instead campaign achieved a 3,446 percent return on ad spend. Personalisation cookies remember preferences and location so you can show the right content or offer first time.
Session cookies vs persistent cookies
Session cookies last only until the visitor closes the browser. They power the shopping basket and keep the user logged in during a single visit. They expire automatically and pose little privacy risk. Persistent or stored cookies remain on the device for a set period, typically up to a year for analytics platforms. They are what let Google Analytics report returning visitors and what power retargeting ads that follow someone for days after they leave your site.
The distinction matters because persistent cookies fall under the Privacy and Electronic Communications Regulations in the UK. You are required to tell visitors about them and get consent before setting non-essential cookies such as tracking and advertising cookies.
GDPR and cookie consent
Since the EU's ePrivacy Directive was adopted into UK law, every website that uses tracking cookies must obtain informed consent. That means a cookie banner that lets the visitor accept or reject non-essential cookies before any tracking code runs. Pre-ticked boxes do not count and implied consent by simply continuing to browse is not enough.
For a small business site, the practical fix is a cookie consent platform such as Cookiebot, Termly or the free cookie notice built into many website builders. It scans your site, categorises each cookie as essential or non-essential and blocks non-essential cookies until the visitor says yes. Victory Digital includes cookie compliance as part of its technical SEO audits, since an improperly configured cookie banner can block analytics code and skew your data.
What the cookieless future means for small businesses
Google began phasing out third-party cookies in 2023, and Apple and Mozilla have made similar changes. The advertising industry is moving toward first-party data, which is information you collect directly from your visitors through forms, accounts and email signups rather than relying on a third-party cookie dropped by an ad network.
The shift does not mean cookies are dead. First-party cookies that your own site sets are still viable. What changes is how you build audiences for remarketing and how you attribute conversions. Platforms such as Google Ads now use modelled conversions and consent-based tracking where possible. Victory Digital's client dashboard tracks your own first-party data so you see real campaign performance without depending entirely on third-party cookies.
How to review your own cookie setup
Login to your website and check what cookies it sets using a free tool such as Cookiepedia or the Chrome Developer Tools inspector. Look for third-party domains (facebook.com, doubleclick.net, linkedin.com) in the cookie list. Each one needs a purpose in your privacy policy and an opt-in consent mechanism. If you use Google Analytics 4, it relies on first-party cookies by default, which is compliant as long as your cookie banner does not block the analytics JavaScript before consent is given. Run a free SEO report at https://victory.digital/run-a-seo-report to see whether your technical setup is blocking analytics data.
A cookie compliance review takes an afternoon and protects you against potential Information Commissioner's Office fines. More importantly, it ensures the data you rely on for marketing decisions is accurate.
If you are unsure whether your cookie setup or marketing tracking needs updating, Victory Digital can audit your configuration as part of a broader technical SEO review at https://victory.digital/search-engine-optimisation, or you can reach the team at [email protected] to discuss your specific setup.
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