Why Your Google Ads Campaigns Have 'Poor' Ad Strength

The short answer

Ad Strength is Google's rating of how well a responsive search ad's headlines and descriptions are set up, on a scale from Poor to Excellent (Google Ads Help). It is feedback for when you write or edit the ad. It is not a ranking factor: Google has stated that Ad Strength is not used in the ad auction (Search Engine Roundtable), and it does not decide whether an ad is eligible to serve.

So a Poor rating does not directly lower your position or raise your cost per click. It is still worth attention, because what it measures (enough distinct, relevant assets) affects how many useful combinations Google can show. Google's Ad Strength help page has also claimed that advertisers who improve Ad Strength from Poor to Excellent see more conversions on average. Its wording and any figure have varied between versions, so read the current page if the number matters to your decision. Either way, that is Google's own aggregate claim about its advertisers, not a promise for any single ad, and it does not separate the rating from the extra assets that raised it.

What the rating looks at

Google's help pages describe Ad Strength as an overall rating plus specific action items. In practice the rating responds to:

• • Quantity: how many headlines and descriptions you supplied. A responsive search ad takes up to 15 headlines and 4 descriptions (Google Ads Help).
• • Uniqueness: whether the assets say different things, or the same thing in different words.
• • Relevance: whether headlines include the ad group's popular keywords.
• • Flexibility: pinning reduces the headlines and descriptions that can be matched to a search, and pinning very similar text to the same position restricts the system further.

Why your ads are Poor, and the fix for each

Common causes of Poor Ad Strength and how to fix them

Cause	How to spot it	Fix
Too few assets	Fewer than about 8 to 10 headlines, or only 2 descriptions	Add headlines covering different angles until Google stops asking for more
Repetitive headlines	Several headlines share most of their words	Replace near-duplicates with genuinely different reasons to act: price, speed, proof, use case, objection
Keywords missing	Action items mention adding popular keywords	Put the ad group's main keyword themes into two or three headlines, naturally
Heavy pinning	Many assets pinned, or one asset pinned per position	Unpin what does not have to appear; where a position must be controlled, pin two or three alternatives to it
Ad group too broad	Keywords in the group cover different products or intents	Split the ad group so one set of headlines can be relevant to every keyword
Descriptions that repeat headlines	Descriptions restate the same offer	Use descriptions for detail the headlines cannot carry: what happens next, what is included, who it is for

A before and after (illustrative)

This illustrative example is for a hypothetical boiler service business.

Before (Poor): "Boiler Service Leeds", "Leeds Boiler Service", "Boiler Servicing in Leeds", "Book a Boiler Service", "Boiler Service Experts", with two descriptions both saying the business services boilers in Leeds. Five headlines, one idea.

After: keep "Boiler Service Leeds" and "Book a Boiler Service", then add distinct angles:

• • Price: "Fixed Price Boiler Service"
• • Speed: "Appointments This Week" (only if true)
• • Proof: "Gas Safe Registered Engineers"
• • Scope: "Full Service and Safety Check"
• • Objection: "No Call-Out Charge" (only if true)
• • Use case: "Landlord Gas Safety Checks"
• • Next step: "Choose a Time Online"

Descriptions then explain what the service includes, who the engineers are and how booking works. Every one of these lines must be true for the business; the gain comes from different reasons to click, not from new wording.

When to ignore the rating

Ad Strength rewards variety and keyword inclusion. It does not know your margins, your legal constraints or which ad converts. There are good reasons to accept a lower rating:

• • Regulated wording. A financial or medical advertiser may need a disclaimer pinned in every ad. Keep it.
• • A proven performer. If an ad rated Average consistently beats an Excellent one on conversions and cost per conversion over a meaningful volume, keep the Average one running.
• • Honest limits. If you only have five true things to say, do not invent ten more to satisfy the meter. Unsupported claims are a bigger risk than a Poor rating.

The rule: use Ad Strength to catch lazy asset sets while writing; use conversions to decide what stays live.

Using AI to fix Poor ratings without producing filler

AI tools are good at generating fifteen headlines quickly and bad at knowing which are true. Give the model the ad group's keywords, a list of facts you can substantiate and the angles you want covered, then ask for two or three headlines per angle with character counts. Delete anything not supported by your facts. The PPC manager's guide to AI ad creative sets out that brief. If your problem is a low Quality Score rather than Ad Strength, that is a different diagnostic; see why Quality Score is low.

FAQ

Does Poor Ad Strength stop my ad from showing?

No. Google states the rating does not determine serving eligibility and is not used in the auction. A Poor ad can still serve, although a thin asset set may limit how well it matches different searches.

Is Ad Strength the same as Quality Score?

No. Ad Strength rates the assets in one responsive search ad as you write it. Quality Score is a keyword-level diagnostic built from expected click-through rate, ad relevance and landing page experience compared with other advertisers.

Why did my Ad Strength drop when I pinned a headline?

Pinning reduces the combinations Google can assemble. Pinning a single asset to a position removes that position from testing. If you must pin, pinning two or three alternatives to the same position keeps some flexibility.

Does Performance Max have Ad Strength too?

Yes, Performance Max asset groups also show an Ad Strength rating based on the assets supplied. The same principle applies: fill the asset types Google asks for with distinct, accurate assets, then judge on results.