Placement
Auto ads vs manual placement
The honest answer is not one or the other. AdSense auto ads are the best way to run a single placement, the anchor, and the worst way to run everything else. Here is when to let Google place your ads, when to do it yourself, and the settings to change before you ever turn them on.
At a glance
The short version
| Dimension | Auto ads | Manual placement |
|---|---|---|
| Setup | One snippet, minutes | Place each unit, hours |
| Who decides placement | Google's model | You do |
| Viewability | Often dragged down by over-placement | Yours to optimize |
| Core Web Vitals | Higher CLS risk injected after paint | Lower, space can be reserved |
| Intrusive formats | Vignettes and anchor on by default | Only what you add |
| Revenue, hands-off | A solid floor | Needs work to beat it |
| Revenue, tuned | Capped by the model | Higher ceiling |
| Best for | Hands-off sites, and the anchor | Anyone optimizing for revenue |
Auto ads optimize for Google's revenue, which is not always yours. The gap between those two numbers is the whole reason to read on.
The reads
What they get right, and where they cost you
What auto ads get right: the anchor
Auto ads reliably place the one unit that wins on every metric we measure, the dismissible sticky anchor. On our own network it runs 88% viewable at a 4.8% click-through, the best of any placement we have. If your site runs nothing else, the auto-ads anchor by itself is found money, and it is the one piece of auto ads we recommend without hesitation.
Where they cost you: Core Web Vitals
Auto ads inject units after your page has painted, so your content jumps as they load. That is Cumulative Layout Shift, a Core Web Vitals metric Google ranks on. You can earn a few percent more in ad revenue and lose more than that in traffic. Manual units can reserve their space in the initial layout. Most auto-placed ones cannot.
Where they cost you: the vignette
The full-page vignette that loads between pages is on by default. It pays well, and it is the same intrusive-interstitial pattern Google's own ranking systems were built to demote. It is the opposite of calm, and it is the first thing we turn off.
Where they cost you: over-placement and lost control
The model optimizes Google's revenue, and more ads is usually more revenue for Google, so it leans toward placing more of them, including in spots your readers never reach. The net-positive test needs you to judge each unit on whether it is seen and what it costs your layout. Auto ads take that judgment away and hand it to a model optimizing a different number than yours.
The evidence
What our own data shows
We pulled the viewability of every placement on our network, and the shape is exactly what auto ads produce on default. The anchor sits at 88% viewable. The end-of-content unit sits at 28%, below the floor, and it absorbs nearly half of all the impressions on the site. One excellent placement, carrying a pile of low-viewability filler. Auto ads are very good at finding the anchor and very willing to bury the rest.
If you run them
The calm setup
Treat auto ads as a scalpel, not a switch. Before you turn them on:
- Keep the anchor on. It is the reason to be here.
- Turn vignettes off. The revenue is not worth the ranking risk or the reader.
- Turn the ad load slider down from the maximum. The default is tuned for Google, not for you.
- Exclude your sanctity zones. Use the placement controls to keep ads out of the header, the area above the fold, and anything next to navigation.
- Watch the "optimize existing ad units" option. It can stack an auto ad right next to a manual one and double up the same spot.
- Then measure. Pull your viewability and your CLS before and after. Any placement under the 60% viewability floor, or any jump in CLS, comes back off.
The decision
Pick by where you are
- Hands-off, small, or new. Run the auto-ads anchor and little else. It is the highest-return thing you can do in five minutes, and it does the least damage.
- Serious about revenue. Place manually, in the spots that measure well, and keep the auto-ads anchor on top. A tuned manual layout beats auto ads every time we have measured it.
- Somewhere in between. Go hybrid. Manual units where you want control, auto ads with vignettes off and the load capped for the rest. Measure, then tighten.
See what your placement is actually doing.
The free scan reads your live Core Web Vitals and ad stack in seconds. The audit scores every placement against the net-positive test, auto or manual, and tells you which ones to keep.
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