Amazon Brand Defense Campaigns: Protect Your Brand Search

Tomás searched his own brand name on a Tuesday night and found someone else's product sitting above his.

He sells insulated camping mugs under the brand "Ridgeline Cup." It took three years and 4,000 reviews to get shoppers typing that name into Amazon. Now the first thing they saw was a cheaper mug from a rival, with a Sponsored label and a $3 lower price. Below it sat a Sponsored Brands banner from a second competitor. His own listing was the third thing on the screen.

He pulled his numbers. Branded search volume had grown 18% over the quarter. His branded orders had grown 2%. The difference was walking out the door through ads he wasn't running.

Amazon brand defense campaigns exist to close that door. They are cheap, they usually run at the lowest ACoS in your account, and most sellers either skip them entirely or build them so badly that they waste money on clicks they'd have won for free. This guide covers how to tell whether you're under attack, the four layers of a proper defense, what to bid, how to budget, and when to dial it back.

What Are Amazon Brand Defense Campaigns?

Amazon brand defense campaigns are ad campaigns that target your own brand name and your own product pages, so that shoppers who already want your brand see your products instead of a competitor's. They protect demand you have already created. They don't create new demand.

A complete defense covers two surfaces:

1. Your branded search results. Searches like "ridgeline cup," "ridgeline cup 20 oz," or "ridgeline mug." Competitors can bid on these terms, and many do.
2. Your product detail pages. The "Products related to this item" carousel and other ad slots on your listing. Competitors can target your ASINs directly and show their products right under your Add to Cart button.

Brand defense is different from the general question of whether ads cannibalize organic sales. We cover that debate, and how to test it, in our guide to Amazon PPC cannibalization. This article assumes you have decided that some defense is worth it and need to build it properly.

Why Competitors Target Your Brand

Branded shoppers are the best traffic on Amazon. They know what they want, they convert at 20-40%, and they have usually already read your reviews somewhere. For a competitor, that's an audience pre-sold on the product category and at least curious about a specific product.

Rivals target your brand for three reasons:

• Price undercutting: A cheaper lookalike next to your listing catches price-sensitive shoppers at the moment of purchase.
• Review comparison: If they have a higher star rating or more reviews, appearing next to you invites a side-by-side comparison you might lose.
• Cheap clicks: Your brand terms often have low competition, so a rival can buy top-of-search placement for a fraction of the CPC on generic category keywords.

The third point is why attacks grow. A competitor runs an auto campaign, Amazon matches it to your brand name, the term converts, and their harvesting routine promotes "ridgeline cup" into an exact match campaign. Nobody at that company necessarily decided to attack you. Their keyword harvesting process did it for them.

How to Tell If Your Brand Is Under Attack

Don't build defense campaigns on a hunch. Check these four signals first.

1. Search your brand like a shopper

Open Amazon in a private browser window, set the delivery address to your main market, and search your brand name plus your three biggest product variations. Do it on desktop and on the mobile app, because the layouts differ. Count how many ad slots above the fold belong to someone else. Repeat at different times of day: some competitors use dayparting and only show up in the evening.

2. Check your detail pages

Open your top five ASINs and scroll to the sponsored carousels. If competitor products fill those slots, a rival is running product targeting on your ASINs. This is often the bigger leak, because it hits shoppers who were one click away from buying.

3. Read Search Query Performance in Brand Analytics

If you're brand registered, the Search Query Performance report in Brand Analytics shows how many impressions, clicks and purchases your brand captured for each query. For a branded query, your click share should be high, often 60-80% or more. If shoppers searched "ridgeline cup" 5,000 times and your products got 40% of the clicks, the other 60% went somewhere, and a lot of it went to ads.

4. Compare branded search growth to branded sales growth

This is the Tomás check. If branded search volume rises faster than sales from branded queries, competitors are capturing the gap. A difference of a few points is noise. A difference of 10+ points over a quarter is a leak.

The Four Layers of Brand Defense

A complete defense uses four campaign types. You don't need all four on day one. Start with layers 1 and 2, then add 3 and 4 when the data says competitors are present.

Layer 1: Sponsored Products on your brand terms (exact match)

This is the foundation. Create a Sponsored Products campaign that contains only branded keywords in exact match:

• Your brand name ("ridgeline cup")
• Brand + product type ("ridgeline cup camping mug")
• Brand + key variation ("ridgeline cup 20 oz")
• Common misspellings ("ridgline cup," "ridge line cup")

Pull the misspellings and variations straight from your search term report. Any query containing your brand name is a candidate.

Use exact match only. Phrase and broad versions of your brand name pull in queries like "ridgeline cup alternative" or "cheaper than ridgeline cup," which you may want, but they belong in a separate test campaign with their own budget.

Advertise the product the shopper most likely wants. For a generic brand search, that's your bestseller. For "ridgeline cup 20 oz," it's the 20 oz SKU, not your whole catalog.

Layer 2: Product targeting on your own ASINs

Create a Sponsored Products product targeting campaign that targets your own ASINs. When a shopper lands on your 20 oz mug, the carousel slots then show your 12 oz mug, your lid set and your gift bundle instead of a rival's.

This layer does two jobs. It pushes competitors out of the slots on your pages, and it cross-sells. Pair products the way a shopper would: mug with lid, mug with a larger mug, single with a two-pack. Our ASIN targeting guide covers the targeting setup in detail.

Don't target a product page with the same product. Target the 20 oz page with the 12 oz mug and the lid set, not with the 20 oz mug itself.

Layer 3: Sponsored Brands on your brand terms

Sponsored Brands ads take the headline banner at the top of search results. If a competitor runs Sponsored Brands on your brand name, they own the most visible spot on the page your customer is looking at.

Run a Sponsored Brands campaign on your brand terms in exact match, with a headline that reinforces why shoppers looked for you in the first place ("Ridgeline Cup: Hot for 12 Hours, Built for the Trail"). Send traffic to your Brand Store or a product collection of your top three sellers. Sponsored Brands requires Amazon Brand Registry, which most brands serious about defense will already have.

Layer 4: Sponsored Display on your own detail pages

Sponsored Display product targeting lets you appear on your own detail pages in placements Sponsored Products doesn't always reach, including below the buy box on some layouts. It's the final layer and the one to add last, once layers 1-3 are stable and you can still see competitor ads on your listings.

How Much to Bid on Brand Defense Campaigns

The common mistake is copying the bids from your generic campaigns. Branded clicks are cheaper because fewer advertisers compete for them. If you bid $1.80 on "ridgeline cup" because that's what you pay for "insulated camping mug," you'll win every auction and overpay on every click.

Start low and raise bids only until you hold the top spot:

1. Start at 40-60% of your generic keyword bid. For Tomás, that meant $0.80 instead of $1.80.
2. Add a top-of-search placement modifier of 30-50%. On branded searches, top of search is the only placement that matters. See our guide to Amazon PPC placements for how modifiers stack.
3. Check top-of-search impression share after 7 days. If you're under 70% on your core brand term, raise the base bid by 10-15% and check again.
4. Stop raising once you hold 80-90%. The last 10% of impression share is the most expensive and the least useful.

When competitors are active on your terms, your CPC will rise because you're in a real auction. That's fine. The question is whether the click is still cheap compared to the order it protects.

What ACoS target should brand defense run at?

Lower than everything else. Typical brand defense ACoS lands at 5-12%, because conversion rates are high and CPCs are modest. Set the target well below your account average. A brand campaign at 25% ACoS isn't defense anymore. Either your bids are too high or the competition is so heavy that you need to rethink the listing itself, usually price or reviews.

Budget Brand Defense Separately

Branded keywords should never share a budget with generic keywords. Branded terms convert so well that they win every internal budget fight, and your growth campaigns starve. We explain the mechanics in our Amazon PPC campaign structure guide.

Give brand defense its own campaigns and, ideally, its own portfolio. That way you can see exactly what defense costs each month, and a budget cap on generic campaigns never switches your brand protection off in the middle of the evening rush.

How much to allocate? Most brands need 5-15% of total ad spend for defense. If you need much more than that, either competitor pressure is extreme or your branded campaign is matching to non-branded traffic. Check the search term report for queries that don't contain your brand name.

Mini Case: The Three-Week Rebuild

Here's how Tomás rebuilt his defense, step by step.

Week 1. He created one Sponsored Products exact campaign with 14 branded terms (brand name, brand + mug, brand + each size, four misspellings) at $0.80 with a 40% top-of-search modifier. He created a second campaign targeting his six own ASINs with each other. Budget: $40/day across both, in its own portfolio.

Week 2. Top-of-search impression share on "ridgeline cup" sat at 62%. He raised the bid to $0.95 and reached 84%. ACoS on the branded campaign: 6.8%.

Week 3. The competitor's Sponsored Brands banner was still there. He launched a Sponsored Brands campaign on his three main brand terms pointing to a collection of his top sellers.

Six weeks later, his branded click share in Search Query Performance was back to 78% from 55%, branded sales were up 14%, and total defense spend was 8% of his ad budget. He also noticed something he hadn't expected: his own-ASIN campaign sold 210 lids to people who had come for a mug.

When to Scale Brand Defense Back

Defense isn't free, and it isn't always needed. Some brands have no competitors on their terms at all. In that case, every branded click you buy might have come through the organic listing anyway.

Scale back when all three of these hold:

• Your SERP checks show no competitor ads on your brand terms for four consecutive weeks.
• Your branded click share in Search Query Performance is above 85%.
• Your detail page carousels are already filled by your own products.

Don't switch defense off completely. Drop bids to the minimum that keeps you showing, or run a holdout test: pause the branded campaign in one marketplace or for one product line for two weeks and compare total branded sales. The cannibalization guide walks through how to run that test without fooling yourself.

Then set a reminder. Competitors come back, especially in Q4.

Common Brand Defense Mistakes

Running branded terms in broad match. "Ridgeline cup" in broad match can match to "camping cup" and "yeti cup," which aren't defense at all. You end up paying branded bids for generic traffic, and the ACoS looks great right up until it doesn't.

No negatives in your generic campaigns. If your auto and broad campaigns keep matching to your brand name, they compete with your defense campaign and inflate their own performance. Add your brand terms as negative exact in your generic campaigns. Our negative keywords guide covers the setup.

Judging defense by ACoS alone. A 6% ACoS looks like a winner, so sellers pour budget into branded campaigns. But the goal is protecting branded sales, not growing them through ads. Measure defense by branded click share and total branded sales, not by how low the ACoS goes.

Defending everything equally. A product with 30 branded searches a month doesn't need four layers. Defend your top products and highest-volume brand terms first.

Ignoring the listing. If shoppers who search your brand still click the competitor, the competitor may simply be offering more: lower price, better rating, better main image. Ads can win you the slot. They can't win you the comparison. Check what the rival is doing with our competitor analysis guide.

Frequently Asked Questions

Should I bid on my own brand name on Amazon?

Yes, if competitors are advertising on your brand terms or your detail pages. Branded clicks are cheap and protect sales you already earned. If nobody else is bidding, run defense at minimum bids and test whether it adds sales.

Can competitors legally bid on my brand name on Amazon?

Generally, yes. Amazon allows advertisers to target other brands' keywords and ASINs. What competitors can't do is use your trademark in their ad creative, such as a Sponsored Brands headline. You can report that through Brand Registry.

What is a good ACoS for brand defense campaigns?

Typically 5-12%. Branded shoppers convert at high rates, so brand campaigns should run well below your account average ACoS. Consistently above 15% usually means overbidding or heavy competitor pressure.

How much budget do brand defense campaigns need?

Most brands spend 5-15% of their total ad budget on defense. Start with $20-50 a day for a small catalog and adjust based on impression share and whether the campaign runs out of budget before evening.

Do I need Brand Registry for brand defense?

Not for Sponsored Products on brand keywords or own-ASIN targeting. You do need it for Sponsored Brands, Sponsored Display, Brand Analytics and Search Query Performance, which makes defense much easier to measure.

The Bottom Line

Your brand name is the most valuable keyword in your account, and right now someone else might be paying less for it than you would. Run the SERP check tonight. Look at your detail pages. Then build layer 1 and layer 2: branded exact keywords at modest bids with a top-of-search modifier, and your own ASINs targeting each other. Keep it in its own budget, give it its own ACoS target, and measure it by branded click share.

For more on how Amazon handles these placements, Amazon's own Sponsored Brands overview covers the ad format, and the Sponsored Products overview covers keyword and product targeting.