Dynamic Search Ads (DSA)
Dynamic Search Ads target searches based on the content of your website rather than a keyword list. Google crawls your pages (or a page feed you supply) and auto-generates the headline and landing page to match relevant queries. The advertiser writes only the description line.
In depth
DSAs are best for catching long-tail and unanticipated queries your keyword campaigns miss, and for large sites where manual keyword coverage is impractical.
Control them with negative keywords and by targeting specific page categories or a curated URL feed, untargeted DSAs can match queries you don't want.
Pair DSAs with strong negative lists so they don't cannibalize your exact-match keyword campaigns.
Landing-page quality matters more than usual: Google picks the page, so a thin or off-topic page becomes a wasted-spend magnet.
Common misconception
DSAs are not a 'set and forget' way to skip keyword research. Without disciplined negatives and page targeting, they drift onto irrelevant queries and waste budget.
Source: Google Ads Help — About Dynamic Search Ads
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