Dynamic Search Ads
Paid MediaAlso: DSA
Quick definition
Dynamic Search Ads (DSA) is a Google Ads campaign type that skips keyword targeting entirely. Instead, Google crawls your website, matches user searches to the most relevant page, and automatically generates the headline and landing page for the ad. You write the description, Google fills in the rest.
How it varies across Australia
Adoption of Dynamic Search Ads (DSA) varies a lot across Australian advertisers. Ecommerce sites with large catalogues lean on it heavily to cover long-tail search terms that would take months to build as manual keywords. Service businesses with thin sites tend to get less value from it because there's less content for Google to crawl and match against.
See acquisition benchmarks across Australian industries →What it actually means
Dynamic Search Ads (DSA) flips the usual paid search model. Normally you pick keywords, write headlines and point them at a landing page. With DSA, Google crawls your site like a mini search engine, indexes the pages, and matches incoming searches to whichever page looks most relevant. It then writes the headline itself, pulling language straight from that page.
This is useful for large ecommerce catalogues or content-heavy sites where manually building keyword coverage for every product or topic is unrealistic. DSA finds the long-tail searches you'd never have thought to target.
It's less useful, and sometimes dangerous, when your site is thin, poorly structured, or when you're already running tight exact-match campaigns. DSA will happily bid on searches that overlap with your existing keywords, competing against your own campaigns in the auction. This is a form of internal cannibalisation that shows up as inflated cost per acquisition (CPA) if nobody's watching the search terms report.
DSA works best as a discovery tool. Run it to surface search terms and page gaps, then graduate the winners into proper keyword-based campaigns where you control the message.
DSA is the campaign type that finds the search terms you didn't think to bid on, and also the ones you definitely didn't want to bid on.
How it shows up
DSA shows up in the search terms report as a long tail of queries you never explicitly targeted, some genuinely useful, some embarrassing. It shows up in account structure as a separate campaign type sitting alongside standard search campaigns, often with negative keyword lists layered on top to stop it colliding with them. It also shows up in landing page reports as traffic hitting pages you didn't design for paid traffic, like blog posts or thin category pages, which usually convert worse than a purpose-built landing page.
Where people get this wrong
Related terms
Common questions
Do I need to write ad copy for Dynamic Search Ads?
You write the description lines, but Google generates the headline and picks the landing page automatically based on the search query and your site content. You have less creative control than a standard search ad.
Is Dynamic Search Ads good for small websites?
Not usually. DSA relies on Google crawling and understanding a reasonable volume of content. Small or thin sites give it little to match against, which produces weak results compared to large ecommerce catalogues or content-rich sites.
Can Dynamic Search Ads compete against my own keyword campaigns?
Yes, and it happens more often than advertisers expect. Without negative keyword lists excluding your existing targeted terms, DSA will bid on the same searches, pushing up your cost per click and distorting which campaign gets credit.
How do I control what Dynamic Search Ads targets?
You can target specific URLs, page categories, or your whole site, and layer negative keywords on top to exclude terms you're already covering elsewhere. Review the search terms report regularly to catch irrelevant or cannibalising matches early.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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