Someone types “black sneakers, size 9” into Google and clicks your ad. And there it is: the homepage, with a banner of discounts and twenty categories in the menu. They will not hunt for the sneakers. They will go back to the search results and click a competitor’s ad. The click you paid for brought you nothing.
Below: why this happens, what Google’s Help says about it, how to check every ad in ten minutes, and why in Performance Max campaigns Google may send people to pages you did not choose. We checked menu names and rules on November 5, 2026 against Google’s Help in Ukrainian, and component names also in Russian, Polish and English. Where the Help is silent, we say so.
Why the homepage costs you a customer
Money first. You pay for the click wherever it leads. The person arrived with a specific intent: a size, a colour, a model. On the homepage they have to find it themselves. Many will not: your competitor is one step back.
That does not mean the homepage is always wrong. It fits when the ad is about the brand as a whole: “Sports shoe store in Boston”. The trouble starts when the promise in the ad is specific and the page is general.
What Google says about the page and the cost of a click
It is easy to overclaim here, so we stay with the Help.
What it says. The Help article about Ad Rank (the set of values Google uses to decide whether your ad shows and where) lists six factors. One of them is the quality of your ad and landing page. Google assesses how useful and relevant both are, how easy the landing page is to navigate, and whether it matches what people expect after clicking. The same article says that higher-quality ads often have a lower cost per click.
What it does not say. There are no numbers. “Often” does not mean “always”, and the Help gives no formula of the kind “this page, this much money”.
Where opinions differ. Practitioners quote specific percentages: how much cheaper a click gets if the page score improves, and what share of the score each component has. We found no primary source for those numbers, so we do not repeat them. Google itself is more cautious. About Quality Score (a 1-10 rating the account gives to keywords), the Help says it is a diagnostic tool and is not an input in the ad auction. It has three components: expected CTR, ad relevance and landing page experience. Each gets a status of “Above average”, “Average” or “Below average”.
The practical takeaway: do not chase the number. Treat the “Landing page experience” status as a hint about whether something on that page is worth changing.
How to check in ten minutes
A final URL (the term Google’s Help uses) is the address of the page people reach after clicking your ad. It is set for each ad.
- Open Google Ads, the Campaigns menu, then “Ads”. Open an ad and look at which address is set as the final URL.
- Go through every active ad this way. For a small account it is not much work.
- Open each address on your phone. Ask yourself: does the person immediately see the product or service the headline promises? Are the price, availability and a “Buy” button visible without long scrolling?
- Where the ad is about a specific product or product group but leads to the homepage, change the address to the product or category page.
- Go to “Keywords” and add the “Quality Score” and “Landing Page Exp.” columns. In Google’s Help the path is: Campaigns menu, “Keywords”, the columns icon, then the “Quality score” section. A “Below average” status is a reason to take a closer look at the site.
- Do not run the site yourself? Google’s Help says not to give up: even then, find the most useful of the existing pages for that ad and set its address. When the ad and the landing page share the same offer or call to action, it is easier for the person to see they ended up where they wanted.
An example from Google’s Help. If someone searches for “flannel shirts” and clicks your ad for flannel shirts, the landing page they reach should feature your flannel inventory. You do not have to repeat the exact search phrase on the page: Google says plainly that this is unnecessary, what matters is that people can easily find what they were looking for.
Where to send people: product, category or homepage
- An ad for one product: to that product’s page. If it is out of stock, read Out of Stock? Don’t Delete the Product Page.
- An ad for a product group (“men’s running shoes”): to a category with filters, not to the catalogue of the whole site.
- An ad for a service: to the page for that service with prices or a request form, not to a general “Services” section.
- An ad for the brand or store as a whole: the homepage is fine here.
Separately, check that what you promise is actually on the page. Matching ad and page, phone usability and speed we covered in the website checklist before you advertise. And what people look for and fail to find inside the site itself shows up in on-site search.
Performance Max: Google may choose the page
Performance Max campaigns have a trap of their own. According to the Help, Final URL expansion is turned on by default for them. This means Google can replace the address you set with a “more relevant landing page” from the same domain, based on the person’s search intent. So you set the sneakers page, and Google, deciding it knows better, may send the person to a section you did not choose.
The Help also warns of the risk: without careful management and URL exclusions, ads can sometimes point to unintended pages. What you can do:
- In the Campaigns menu, click the gear icon beside the Performance Max campaign and select “Asset optimization”.
- Under “Text”, see whether the “Final URL” checkbox is ticked. Unticking it turns expansion off.
- If you want expansion, in the same place select “Exclude some URLs” under “Final URL” and list pages you do not want to send people to: the cart, the returns policy, the blog.
- Open the asset report and its “Expanded Final URL assets” tab: it shows which addresses the assets served with.
Two more details from the Help. When expansion is off, the campaign sends people only to URLs from the page feed and the asset groups. And for campaigns with store goals only (store visits, contacts, direction clicks), expansion is not supported. Changes to these settings take 24-48 hours to show. A similar feature exists in search ads with AI Max: how to find and switch it off we described in AI Max: Check Your Search Ads.
What we did not take, and why
- Percentages of click savings from page quality. Practitioners repeat them, but there is no primary source. Google writes only “often a lower cost per click”.
- The claim that a 301/302 redirect in the final URL lowers Quality Score. We found only an old statement not checked against the current Help. A simple rule is useful without it, though: set the final URL with https straight away, without extra redirects.
Summary
You pay for a click to the homepage instead of the product, and you lose the buyer. Google’s Help does not promise an exact discount on the click for a good page, but it says plainly that the quality of the ad and landing page is part of Ad Rank and that higher-quality ads often cost less. So once a month open each ad, look at its final URL and check it on your phone. And in Performance Max also look into “Asset optimization”: is Google choosing the page instead of you.
How we run search and product advertising, see the sections on search ads and Merchant Center.
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