4.1SEA: Google Ads (Search Advertising)
The essentials in 30 seconds
- SEA = showing up instantly atop Google, via paid ads triggered by keywords.
- You pay per click (CPC) and reach users with full intent: the fast-acquisition lever.
- Reflex: bid + quality score set cost and position — and without conversion tracking, you spend blind.
Running case — Sofia launches her 1st campaign
Sofia sells gourmet gift baskets online and plateaus with organic. She decides to INVEST: a first Google Ads campaign on high-intent keywords ('buy gourmet basket', 'corporate gift box quote'). Her ad points to a dedicated page and she installs conversion tracking BEFORE launching: for the first time, she will know what each click truly brings in.
This same case runs through the lesson, the diagram, the script and the 48h challenge — and continues in 4.2, 4.3, 4.4 and 4.5.
1. The fast-acquisition lever
SEA (Search Engine Advertising) gets you immediately atop Google, via paid ads triggered by keywords. Sofia no longer just builds a slow asset: she buys instant visibility.
With Google Ads, you generally pay only per click (CPC) and reach users with full intent — those actively searching for what you offer. It is the fast-acquisition lever: it stops as soon as you cut the budget.
2. Bidding, quality score and conversions
Its mechanics rest on a bidding system combined with a quality score (ad and page relevance). Sofia learns that an ad aligned with her page costs less at equal position.
Well managed, SEA is highly profitable; poorly mastered, it quickly burns a budget. Understanding keywords, bidding, ads and conversion tracking is essential before launching: that tracking measures the campaign's true profitability.
🔎 Concrete example — 🔎 Concrete example — Start small
Learn before scaling.
High-intent keywords ('buy…', 'quote…', 'near me').
Aligned ad + relevant landing + test daily budget.
→ install conversion tracking BEFORE launching.Result: a campaign managed by real profitability.
Reflex: without conversion tracking, you spend blind.
Section vocabulary
- SEA / Google Ads
- Search engine advertising: paid ads atop results, triggered by keywords.
Simple example: Sofia shows up on top for 'buy gourmet basket' via Google Ads.
What it is not: free search ranking or creating a site.
Reflex: SEA = paid and instant; SEO = free and slow.
- CPC (cost per click)
- The price paid for each click on the ad. The dominant SEA model: you pay for real interest, not display.
Simple example: Sofia pays for each click on her ad, not each display.
What it is not: a fixed monthly fee independent of clicks.
Reflex: think cost per conversion, not just per click.
- Bid
- The mechanism determining ad display and position based on the proposed amount and quality.
Simple example: Sofia adjusts her bid on her high-intent keywords.
What it is not: a fixed identical price for all advertisers.
Reflex: start small, on tightly targeted keywords.
- Quality score
- The score assessing ad and landing page relevance. A good score lowers costs.
Simple example: Sofia's ad repeats the keyword and points to an aligned page.
What it is not: the bid amount alone.
Reflex: align ad and landing before raising bids.
- Conversion
- The desired action after the click (purchase, form). Tracking it measures the campaign's true profitability.
Simple example: Sofia counts each order from her campaign thanks to tracking.
What it is not: a simple click or view of the ad.
Reflex: no campaign without conversion tracking installed first.
In practice — Hands-on — Understanding a Google Ads campaign
- List your audience's high purchase-intent keywords ('buy…', 'quote…', 'near me').
- Write an ad aligned with those keywords, with a clear benefit and CTA, pointing to a relevant page (landing).
- Set a test daily budget and a reasonable bid; start small to learn.
- Install conversion tracking BEFORE launching: without it, impossible to know what pays off.
Ready-to-say script — framing your 1st campaign before launching (1 min)
'We launch small to learn: five high-intent keywords, one aligned ad to a dedicated page, one test daily budget. And first, conversion tracking: without it, we will never know what pays off. We measure for a week, then scale what converts.'
Say it to a partner or provider: intent + alignment + tracking before budget.
Copy-paste template — 1st SEA campaign sheet
INTENT KEYWORDS (5 max): _______________
AD (benefit + CTA): _______________
TARGET LANDING: _______________
TEST DAILY BUDGET: _______________
CONVERSION TRACKING INSTALLED (yes / no): _______________
CONVERSION TO MEASURE: _______________Small business / tight budget
Five ultra-targeted keywords and a test daily budget are enough: better a small well-tracked scope than a broad poorly managed one.
Local shop
Add 'near me' and the catchment area: local intent converts fast and limits national competition.
B2B / quotes
Target 'quote', 'price', 'provider' + sector: little volume but very strong buying intent to capture.
Test before SEO
Use SEA to test which keywords convert, then build SEO on the winners to reduce dependence on paid.
✓ Best practices
- Target high purchase-intent keywords.
- Align ad and landing for a good quality score.
- Install conversion tracking before launching.
✗ Common pitfalls
- Launching with no conversion tracking (spending blind).
- Targeting keywords too broad, burning the budget.
- Sending traffic to an irrelevant page.
Key takeaways
- SEA places your ads atop Google, instantly but paid.
- Cost-per-click (CPC) model: you reach users with full intent.
- Bid + quality score set cost and position.
- Without conversion tracking, profitability cannot be managed.
48h challenge — apply tomorrow
List 5 high-intent keywords of your offer, write 1 aligned ad to a dedicated page and check that conversion tracking is installed (or note how to install it). 20 minutes is enough.
- I can explain SEA, CPC, bid and quality score without hesitating.
- I know why conversion tracking comes before any launch.
- I have listed 5 high-intent keywords of my offer.
Frequently asked questions
What minimum budget to start with Google Ads?
There is no absolute minimum, but you need enough budget to collect usable data (often a few hundred euros over a few weeks of testing, as in V2). Start small, on tightly targeted high-intent keywords, measure cost per conversion, then scale what works. A small well-tracked budget beats a big poorly managed one.
SEA or SEO, must I choose?
They complement each other. SEA gives instant visibility but stops as soon as you cut the budget; SEO builds a lasting asset but slowly. A common approach: SEA to test keywords and generate quick sales, while SEO ramps up to gradually reduce dependence on paid.
Sofia launches broad with no tracking, pointing ads at her homepage. What burns first?