Most founders running their own Google Ads burn hours tweaking bids and hunting keywords. Then they leave the easiest CTR win untouched: ad assets. The extra links, phrases, and snippets that wrap around your ad. They're free. They make your ad physically bigger. They shove competitors down the page. And roughly half the accounts I see run them half-empty or skip them entirely.
Wait, they're called "assets" now
Google renamed "ad extensions" to "assets" back in 2023. Same thing. If a guide or a YouTube video says "extensions," it means assets. The interface, the menu, the reports all say "Assets" now. Don't let the rename confuse you.
Three assets do the heavy lifting for a Thai SMB: Sitelinks, Callouts, and Structured snippets. Get these three full and you've captured most of the free CTR available.
The three that matter most
Sitelinks: extra clickable links
Sitelinks are the blue links that appear below your main ad: "Pricing," "Book a Demo," "Reviews." Each one has link text plus two optional description lines. They send people straight to the page they want.
Google needs at least 2 sitelinks to show any, and displays up to 6 on desktop, fewer on mobile. Add 8. Google rotates them and shows the combination it predicts will perform best.
Callouts: short, non-clickable proof phrases
Callouts are tiny phrases that aren't links: "Free Bangkok delivery," "Open 7 days," "5-year warranty." Each maxes out around 25 characters. You need at least 2 for any to show. Add 6 or more.
Callouts are where you stack the small reasons to trust you. They don't replace the headline. They back it up.
Structured snippets: a labeled list
A structured snippet is a header plus a list. Header "Services," then "Facials, Massage, Waxing, Nails." Header "Brands," then the names you stock. Pick a header from Google's fixed list, give it at least 3 values, and add 6 or more.
Why this is genuinely free
You don't pay to add an asset. You don't pay extra when one shows. You pay per click, exactly like you always have. A click on a sitelink costs the same as a click on the headline.
It gets better. Ad Rank, the score that decides your position and your CPC, factors in the expected impact of your assets. A fuller, more useful ad can earn a higher Ad Rank at the same bid. Higher Ad Rank often means a lower actual CPC. So assets can make clicks cheaper, not just more frequent.
And the size effect is real. A bare text ad is two lines. The same ad with sitelinks, callouts, and a snippet can run four or five lines tall. That extra height pushes the next advertiser further down — sometimes off the first screen entirely.
The trap nobody talks about
Founders add assets, check their ad, see nothing, and assume it's broken. It usually isn't.
Google only shows assets when two things are true: your Ad Rank clears a threshold, and Google predicts the asset will improve performance. Weak bid, weak Quality Score, low Ad Rank, and your assets stay hidden no matter how many you added. Mobile also shows fewer than desktop by design.
Two more quiet killers. Thin sitelinks like "Home," "About Us," and "Contact" give Google no reason to show them — nobody clicks "About Us" from a search ad. Send sitelinks to pages that match buying intent. And mismatched landing pages get throttled fast: a sitelink labeled "Pricing" that dumps people on your homepage will lose impressions once Google sees the bounce.
Quick reference
| Asset | How many to add | What it does |
|---|---|---|
| Sitelinks | 8 | Sends people to the exact page; biggest CTR lift |
| Callouts | 6+ | Stacks trust phrases; non-clickable proof |
| Structured snippets | 2 headers, 4+ values | Shows your range of services or brands at a glance |
What to do next
Open Google Ads, go to the Assets tab, and check each campaign against the minimum fill rule above. Most accounts fail it in five minutes flat.
When you build a campaign in AdBlueprint, the blueprint already drafts sitelink and callout text matched to your offer and your landing pages, so you start full instead of half-empty. Review the wording, tighten it, and ship.
