Google Ads · explained

The exhaustive Google Ads FAQ.

Every campaign type and when to choose it, the terminology that trips people up, the parameters that matter, and the specific ways accounts go wrong — in plain English.

Campaign types & when to choose them

Six ways to run Google Ads — and which fits you.

Search

Text ads on Google's results page, shown when someone searches a keyword you're bidding on.

Best for

Capturing existing demand — people actively looking for what you sell.

Choose when

Your customers search for your product or service by name or problem. This is the highest-intent, most reliable place to start for most businesses.

Watch out for

Broad-match keywords quietly trigger on irrelevant searches — without steady negative-keyword upkeep, this is where budget leaks fastest.

Performance Max (PMax)

One automated campaign that runs across every Google surface — Search, Display, YouTube, Gmail, Maps, Discover — from a single set of assets and a goal.

Best for

Ecommerce and lead-gen accounts that already have solid conversion tracking and want maximum reach with minimal manual setup.

Choose when

You have accurate conversion tracking, a good asset library, and enough conversion volume for Google's automation to learn. Often layered on top of Search, not instead of it.

Watch out for

It's a black box — little visibility into where spend goes, and it can quietly cannibalise your brand and Search traffic. Needs active monitoring, which is exactly what native reporting won't give you.

Shopping

Product listings with image, price and title, shown in search results and the Shopping tab, driven by a product feed.

Best for

Ecommerce stores selling physical products.

Choose when

You have a product catalogue and a Merchant Center feed. For retail, Shopping usually outperforms text Search for bottom-of-funnel buyers.

Watch out for

Your feed quality is everything — bad titles, missing attributes or wrong data quietly cap performance no bid change can fix.

Display

Image and banner ads shown across Google's network of 2M+ websites and apps.

Best for

Awareness and — most usefully — retargeting people who already visited your site.

Choose when

You want to stay in front of past visitors (remarketing), or build cheap awareness. Rarely the right first campaign for direct response.

Watch out for

Low intent and easy to waste — placements on junk apps and 'accidental' mobile clicks burn budget fast without tight placement control.

Video (YouTube)

Skippable and non-skippable video ads on YouTube and across Google video partners.

Best for

Awareness and consideration — telling a story or demonstrating a product.

Choose when

You have genuine video creative and a goal beyond an immediate click. Increasingly used for direct response too, but creative-dependent.

Watch out for

Not a direct-response channel by default — judging it purely on last-click conversions will make good awareness spend look like waste.

Demand Gen

Visual, social-style ads across YouTube, Discover and Gmail — Google's answer to Meta-style discovery.

Best for

Mid-funnel visual discovery — reaching people who aren't searching yet but match your audience.

Choose when

You have strong image/video creative and want social-style reach inside Google's ecosystem, often to complement Search.

Watch out for

Newer and creative-hungry — without a steady supply of fresh creative it fatigues quickly, and it needs accurate tracking to prove its mid-funnel value.

Questions people actually ask

Everything else about Google Ads.

Getting started

How much should I budget to start?+

Enough for your target CPA to gather data — a rough guide is at least 15–30 conversions/month for automated bidding to learn. Start where you can sustain a few weeks of learning, not a single test day. It's better to run one focused campaign properly than three underfunded ones.

Should I start with Search or Performance Max?+

For most businesses, Search first. It's higher-intent, more transparent, and teaches you what actually converts. Layer Performance Max on later, once you have conversion tracking and data — not as your untested first campaign.

How long before I see results?+

Expect a 1–2 week learning period where performance is noisy and you shouldn't judge it. Meaningful signal usually takes 2–4 weeks. Changing settings constantly resets learning and is the most common self-inflicted wound.

Do I need a separate landing page, or can I send traffic to my homepage?+

A dedicated landing page matched to the ad almost always converts better than a generic homepage. A healthy click-through rate with a poor conversion rate usually means the page, not the ad, is the problem.

Keywords & match types

What's the difference between broad, phrase and exact match?+

Broad match shows your ad for loosely related searches (widest reach, most waste); phrase match requires your term's meaning to be included; exact match is tightest, only close variants of your exact term. More reach means more irrelevant clicks to filter out.

Which match type should I use?+

A common approach: start tighter (phrase/exact) when budget is limited and you can't afford waste, and use broad match only once you have Smart Bidding and solid conversion data guiding it. Broad match without good conversion signals is how budgets evaporate.

What are negative keywords and why do they matter so much?+

Negative keywords stop your ads showing for searches you don't want — 'free', 'jobs', 'cheap', competitor DIY terms. They're the single biggest lever for cutting wasted spend. The risk is cutting real customers by mistake, so they should be reviewed, not blindly automated.

What are search terms, and how are they different from keywords?+

Keywords are what you target; search terms are what people actually typed to trigger your ad. Broad match means those can differ wildly. Reviewing the search-terms report is how you find both new negative keywords and new keywords worth adding.

How many keywords should an ad group have?+

Fewer, tightly-themed keywords per ad group beat cramming in dozens — it keeps your ads relevant to each keyword, which lifts Quality Score. If keywords need very different ad copy, they belong in separate ad groups.

Bidding & budget

What bidding strategy should I choose?+

With little conversion data, Maximize Clicks or Manual CPC gets you traffic to learn from. Once you have ~15–30 conversions/month, move to a conversion-based strategy (Maximize Conversions, then Target CPA or Target ROAS). Moving too early gives the algorithm too little to work with.

What are Target CPA and Target ROAS?+

Target CPA tells Google the cost-per-acquisition you want and it bids toward it; Target ROAS does the same for return on ad spend. Both are only as reliable as your conversion tracking — set a target on bad data and Google confidently optimises toward the wrong thing.

Why did my costs jump after switching to Smart Bidding?+

Smart Bidding needs a learning period and enough conversion data; early on it can overspend while it calibrates. It also silently ignores manual bid adjustments for device, location and schedule — a common surprise. Give it 1–2 weeks before judging.

How does daily budget actually work?+

Google can spend up to 2x your daily budget on high-opportunity days, balancing out over the month so you don't exceed your monthly average. So a single day over budget isn't a bug. What matters is the monthly total and the cost per result.

What is 'lost impression share' and should I care?+

It's the percentage of available impressions you missed — split into 'lost to budget' (you ran out of money) and 'lost to rank' (your Ad Rank was too low). It's an abstract percentage until you translate it into the actual budget or quality improvement needed to recover it.

Quality Score & Ad Rank

What is Quality Score?+

Google's 1–10 rating of a keyword, built from three parts: expected click-through rate, ad relevance, and landing page experience. A higher score means cheaper clicks and better positions for the same bid.

How do I actually improve Quality Score?+

Fix the specific weak component, not the blended number. If landing page experience is 'below average', improve page speed and relevance; if ad relevance is low, tighten your ad copy to the keyword; if expected CTR is low, write more compelling ads. Guessing wastes effort on the wrong lever.

What is Ad Rank and why can a smaller competitor outrank me?+

Ad Rank is roughly your bid multiplied by your Quality Score, plus context and expected impact of assets. That's why a competitor with better relevance and a smaller budget can appear above you — you can't always outbid a quality gap.

What is Ad Strength and does it affect delivery?+

Ad Strength (Poor to Excellent) rates how many varied, relevant headlines and descriptions you've given a responsive search ad. A 'Poor' rating quietly limits how often and where your ad shows — it's worth fixing even though it's not the same as Quality Score.

Performance Max

Is Performance Max worth it, or is it just Google spending my money?+

It can be very effective with good tracking, strong assets and enough conversion volume — and wasteful without them. The real problem is visibility: it won't tell you where spend went or why. It rewards active oversight, which its native reporting doesn't provide.

Will Performance Max steal my brand traffic?+

It can. Left unchecked, PMax often claims credit for brand and existing Search demand you'd have won cheaply anyway, inflating its apparent performance. Watching for this cannibalisation is essential and easy to miss manually.

How do I know if Performance Max is actually working?+

Look past the headline ROAS at whether it's finding new customers or just harvesting existing demand, whether assets are rated well, and whether any asset groups have meaningful spend with zero conversions. These signals are buried and rarely surfaced by default.

Measurement

Why don't my Google Ads conversions match my actual sales?+

Common causes: conversion tracking not firing correctly, the wrong attribution window, iOS privacy and ad-blockers hiding conversions, or double-counting. An account optimising on inaccurate conversions will confidently make the wrong calls — measurement is the foundation everything else sits on.

What is server-side tracking and do I need it?+

It reports conversions to Google from your server rather than only the visitor's browser, catching the ones ad-blockers and iOS privacy settings hide — often 20–40% more. If Smart Bidding is optimising on an undercount, fixing this is one of the highest-impact things you can do.

What's the difference between a conversion and a good lead?+

A conversion is any tracked action; a good lead is one that becomes a customer. Optimising toward raw conversion volume can flood you with cheap, low-quality leads. Feeding quality signals back — which leads actually closed — points bidding at the right outcome.

What attribution model should I use?+

Google defaults to data-driven attribution where available, which spreads credit across the path rather than only the last click. The key is consistency — comparing two campaigns or platforms on different models or windows is comparing apples to oranges.

Where people go wrong

What's the most common Google Ads mistake?+

Running broad match without negative keywords or good conversion data — it spends fast on searches that never convert. Close behind: judging performance during the learning period, and changing settings so often that learning never completes.

I'm getting clicks but no conversions — what's wrong?+

Usually one of: the landing page doesn't match the ad's promise, the traffic is low-intent (wrong keywords or match type), tracking isn't firing so conversions aren't recorded, or the offer itself isn't compelling. Check tracking first — you may be converting and not seeing it.

Should I pause ads that aren't performing immediately?+

Not during the learning period, and not on too little data — pausing prematurely throws away the learning you paid for. Give campaigns a fair window (usually 2–4 weeks) and a meaningful number of clicks before judging, unless spend is clearly running away with zero results.

Is it worth bidding on my own brand name?+

Often yes — it's cheap, protects against competitors bidding on your brand, and controls the message. But if no competitors are bidding and you rank #1 organically, it can be spend you'd have won for free. It's account-specific; test it.

How often should I be making changes?+

Less than you'd think. Frequent changes reset the learning phase and make it impossible to tell what worked. A steady cadence — review regularly, change deliberately, then let it run — beats daily tinkering. This is exactly the discipline automation should enforce, not undermine.

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