Start with a strong tagging infrastructure
Tags are the foundation of privacy-centric measurement. Sitewide tagging,
using the Google tag or Google Tag Manager, allows you to make the most of the
data that customers share with you by placing first-party cookies on your
website to measure conversions.

Benefits of sitewide tagging

LähiTapiola’s use of first-party data results in an increase in conversions
LähiTapiola, a major insurance provider based in Finland, wanted to expand
its digital acquisition strategy while also maintaining budget efficiency.
Partnering with Google and an agency, OIKIO, they implemented the Google tag
across LähiTapiola’s entire website. Now able to use first-party data with
its Google Ads campaigns, the company has gained a
37% increase in conversions and a
7% decrease in cost per conversion.
How sitewide tagging works
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Sitewide tags, such as the Google tag, place first-party cookies on your website.
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Customers interact with your ad and the sitewide tag stores first-party cookies with info about the interaction.
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When the customer converts on your website, the tag reads this cookie and records the conversion in your Google Ads account.
Get started with sitewide tagging
Want to learn more?
Watch a Google Ads Tutorial on sitewide tagging
Take a learning course on tagging excellence