Responsive Search Ads (RSA).

A responsive search ad is made of building blocks. Headlines may be 30 characters each, descriptions 90 characters each. Per impression Google usually shows up to three headlines and up to two descriptions, assembled from the variants provided. Which combination appears is decided by a system that considers the search query, device, location and past performance. The ad is complemented by assets such as sitelinks, callouts or call options.

The advantage is coverage. Instead of testing two or three fixed ads against each other, you supply material from which many variants arise. This helps especially with broader match types, where very different searches hit the same ad group. The downside is less control: not every combination automatically makes sense. Headlines must therefore be written so that they work in any order and do not repeat each other.

If certain statements must appear in a specific position, headlines or descriptions can be pinned, for example so that the brand name always appears in position 1. Pinning restricts combinations and often lowers the ad strength Google displays. It makes sense for legally required notices or indispensable core messages, not as a default. Ad strength is an assessment of the variety and relevance of the building blocks, not a measure of success; click-through rate, conversions and Quality Score remain decisive.

Good RSAs start with what searchers want to know. One headline picks up the keyword, one states the benefit, one a concrete differentiator (region, response time, specialisation), one a call to action. Prices only belong in the ad if they appear exactly the same on the landing page. And the landing page must deliver what the ad promises, otherwise budget is burnt on clicks without enquiries. How ads and landing pages work together is at the core of Google Ads management.