Quality Score

What the score is grading

Google makes money when people click ads and loses people when the ads are junk. Quality Score is the shorthand for that tension. Keyword by keyword, it is the platform's estimate of how well your ad and your page serve the person who did the searching, and higher is better.

Broadly it weighs three things: whether people tend to click your ad when they see it, how closely the ad matches what was typed, and what happens after the click, which means the page they land on.

Here is the everyday version. A plumber bids on water heater repair and points every click at his homepage, where water heaters are the fourth item in a list of nine services. The visitor hunts, gives up, hits back. A second plumber points that click at a page about water heater repair, with the brands he works on, what the job usually involves, and a phone number sitting at the top. Same trade, same keyword, and the second advertiser is cheaper to be.

Nothing in that comparison is about ad copy tricks. It is about whether the promise in the ad is kept by the page underneath it, which is the whole idea the score is trying to put a number on.

A weak score charges you twice

The first charge lands on the bill. Relevance is part of how the auction ranks ads, so a weak score means you have to make up the gap with money: more per click for the same position a better matched competitor gets for less.

The second charge is invisible, which is why it does more damage. Below a certain point your ad stops entering some auctions at all. You never see the impressions you did not get. You see a budget that will not spend and a slow week you cannot explain.

Almost all of the fixable ground is on the landing page, and it happens to be the only piece of this you fully own, which is why we treat the ad and the page behind it as one job when we run Google Ads for a client. Point each ad group at a page about that one service, written for the person who typed that one search, and you have addressed the part of the score that is genuinely yours to control.

What Quality Score is not

It is not an SEO metric. It has no bearing on where you sit in organic results, and a strong organic page does not earn you a discount in the ads auction.

It is not Ad Rank either. Ad Rank is the calculation that actually orders the ads in a given auction, and it takes in your bid, the context of the search, and the assets attached to your ad. Quality Score is one ingredient in that, reported back to you as a diagnostic.

And it is not a dial you turn. It is a readout. It moves when click-through rate, ad relevance, and landing page experience move, and it can drift while you sit still, because your competitors and the searches your keyword matches are both changing without asking you.