What is Paid Search Advertising? (Google Ads)

Paid search advertising is online advertising where a business pays to show text ads beside search results for the keywords it chooses, and usually pays only when someone clicks. On Google, it runs through Google Ads. Each search triggers an auction that weighs your bid, the quality of your ad and landing page, and the searcher’s context.

This guide explains how that auction works, what Quality Score means, what a click costs and how to set up your first Google Ads search campaign, with the checks to make in the first month.

• You choose the keywords, write the ads and set an average daily budget.

• Google runs an auction for every search, ranking ads by bid, quality and context.

• Better ads can cost less: higher-quality ads often get lower costs per click.

• Measure conversions from day one, or you can’t tell which clicks earned money.

How does paid search advertising work?

Paid search advertising works on keywords and auctions. You pick the searches you want to appear for, write ads for them and say how much you’re willing to pay per click. When someone searches, Google decides which ads to show, in what order, and what each advertiser pays.

Paid search ads appear in sponsored slots above or below the regular results, and they stop the moment you pause the campaign. That is the main difference from organic search, which earns free listings slowly but keeps them. Read what organic search engine optimization is →

How does the Google Ads auction work?

Google runs a separate auction for each ad location on every search, and ranks ads by Ad Rank. According to Google Ads Help on Ad Rank, Ad Rank depends on:

• Your bid: the most you’re willing to pay for a click

• Ad and landing page quality: how relevant and useful your ad and the page behind it are

• Ad Rank thresholds: the minimum an ad must reach to show at all

• Auction competitiveness: how close your Ad Rank is to the advertisers around you

• The context of the search: the words searched, location, device, time and other signals

• The expected impact of assets, such as sitelinks and phone numbers

Ad Rank is recalculated for every search, so your position changes from one search to the next. Your bid is a ceiling, not a price: you often pay less, and Google says higher-quality ads can often lead to lower costs per click.

What is Quality Score in Google Ads?

Quality Score is a 1–10 rating, shown for each keyword, that estimates how your ad quality compares with other advertisers’. Google’s Quality Score guide lists three components:

• Expected click-through rate: how likely people are to click your ad for that keyword

• Ad relevance: how closely the ad matches what the person searched for

• Landing page experience: how relevant and useful the page is after the click

Quality Score is a diagnostic, not an input to the auction. Treat a low score as a pointer: a “Below average” landing page experience means the page doesn’t deliver what the ad promised. Read 5 product page tweaks that lift conversion →

How much does Google Ads cost?

Google Ads costs what you decide to spend: you set an average daily budget, and the auction sets the price of each click. There is no fixed price per click, because it depends on how many advertisers want the same searches and how good their ads are.

The budget is an average, not a hard daily cap. Google Ads Help explains that a campaign can spend up to twice its average daily budget on a given day, but you won’t be charged more than 30.4 times the daily budget in a month. A CAD $20 daily budget can therefore spend up to $40 on a busy day and no more than $608 in a month.

To find what you can afford per click, use this rule: profit per sale × conversion rate = break-even cost per click. For example, if a sale earns you $60 in gross profit and 2 in every 100 visitors buy, you break even at $1.20 a click. Bid below that, and improve the landing page to raise the conversion rate.

How to set up your first Google Ads campaign

A first campaign should be a small Search campaign, aimed at people searching for exactly what you sell. Google’s Create a Search campaign guide walks through the screens; here is the order we follow at msmtech, with the decisions that matter.

Before you build

1. Set up conversion tracking. Decide what counts as a result: a purchase, a quote request, a sign-up or a phone call. Google’s conversion measurement guide covers website, call and offline conversions. Google requires at least one conversion goal to create a Search campaign.

2. Research keywords. List the searches a ready-to-buy customer would type, such as “zebra blinds Montreal” rather than “blinds ideas”. Keyword Planner, inside your Google Ads account, estimates monthly searches and what keywords cost.

3. Pick the landing page for each group of keywords: the product or service page that answers that search, not your homepage.

Build the campaign

1. Choose an objective and Search as the campaign type. Sales, Leads or Website traffic all work; choose the one that matches your conversion.

2. Choose a bid strategy. Google offers strategies that focus on conversions, conversion value, clicks or impression share. With little conversion data yet, a clicks strategy is a simple start; switch to a conversions strategy once conversions build up.

3. Set networks, locations and languages. Keep the first campaign on Google Search: leave the Display Network box unchecked. Target only the areas you serve, and the languages your ads are written in.

4. Create ad groups by theme. One ad group per product or service, each with 5–20 closely related keywords. A tight theme makes it easier to write relevant ads.

5. Set the budget you can sustain for at least a month, then review and publish.

Write the ads

Google Search ads are responsive search ads: you supply several headlines and descriptions, and Google tests combinations. Per Google’s responsive search ads guide, each ad takes 3 to 15 headlines of up to 30 characters and 2 to 4 descriptions of up to 90 characters, plus two optional display path fields of 15 characters. Google recommends at least three ads per ad group.

• Put the keyword theme in at least two headlines.

• Say what makes you different: delivery time, price, guarantee, location.

• End with a specific action: “Get a quote in 24 hours”, “Order before 2 p.m. for same-day shipping”.

• Add assets such as sitelinks, callouts and a call button; they make the ad larger and can count toward Ad Rank.

Keyword match types and negative keywords

Match types control how closely a search must match your keyword. Google’s keyword matching guide describes three:

Because broad match is the default, a new campaign can show for searches you never intended. Start with phrase and exact match, and add negative keywords to block searches that won’t buy, such as “free”, “jobs” or a product you don’t sell. Google notes that negative keywords don’t match close variants, so add plurals and synonyms yourself.

What to check in the first 30 days

1. Every week, read the search terms report and add negatives for searches that don’t fit. In the accounts we set up at msmtech, this is the step that saves the most budget early on.

2. Pause keywords that spend without converting once they’ve had a fair number of clicks.

3. Compare your ads: keep the headlines that win and replace the weakest.

4. Check the landing page on a phone: load time, price visible, one clear action.

5. Compare cost per conversion with your break-even figure, not clicks or impressions.

Paid and organic search work best together: ads test which keywords convert, and SEO earns those searches for free over time. See msmtech’s search engine optimization service →

Want a second pair of eyes on your first campaign or your landing pages? Talk to msmtech.

Frequently asked questions

Is Google Ads worth it for a small business?

It is when your break-even cost per click is higher than what the auction charges for your keywords. Run a small Search campaign with conversion tracking for a month; the cost per conversion tells you whether to scale up or stop.

Do I pay if someone sees my ad but doesn’t click?

Not with cost-per-click bidding. You pay when someone clicks the ad, not when it is shown, and the price comes from the auction.

Is Quality Score the same as Ad Rank?

No. Ad Rank is calculated at every auction from your bid, ad quality, thresholds, competition, search context and assets. Quality Score is a 1–10 diagnostic that summarizes how your ad quality compares with other advertisers’ for a keyword.

Can I run Google Ads without a website?

Search campaigns need a final URL for every ad, so you need at least one page that answers the search and lets people act. A focused landing page usually works better than a homepage or a social profile.