In 2025, 65% of Australian small and mid-sized businesses run active Google Ads campaigns, investing anywhere from $1,500 to $5,000 monthly to capture potential customers at the exact moment they’re searching. With Google Ads delivering an average ROI of 200% (earning $2 for every $1 spent), it’s no wonder business owners are eager to get started.
Yet here’s the uncomfortable truth: 88% of keywords in the average Google Ads account produce zero sales. The platform is designed to maximise Google’s revenue, not yours. And if you’re managing your campaigns yourself without proper training, you’re likely haemorrhaging budget on clicks that will never convert.
The 6 Default Google Ads Settings That Are Turned ON to Spend Your Budget Faster
When you set up a new Google Ads campaign, Google pre-selects several settings that seem helpful but are actually designed to increase your ad spend. Here’s what’s costing you money right now:
1. Search Partners Network
By default, Google extends your ads beyond Google Search to hundreds of partner websites. While this sounds like more exposure, it often means:
- Lower-quality traffic from obscure search engines
- Higher cost per conversion (typically 20-30% worse than Google Search alone)
- No transparency on which partner sites are driving your clicks
Fix: Turn off Search Partners for new campaigns. Test it separately once your core Google Search campaigns are profitable.
2. Display Network Expansion
Google automatically opts you into the Display Network—a vast collection of websites, apps, and YouTube videos where your search ads can appear. The problem?
- Display ads have a 0.46% average conversion rate (versus 7.52% for search)
- Users browsing websites aren’t actively searching—they’re passively consuming content
- You pay for ‘awareness’ clicks that rarely convert for small businesses
Fix: Disable Display Network unless you’re running brand awareness campaigns with a separate budget.
3. Broad Match Keywords
Google defaults to broad match, which means your ads can trigger for loosely related search terms. A plumber bidding on ’emergency plumber’ might appear for ‘plumbing courses’ or ‘plumbing jobs’—wasting clicks on people who will never hire them.
Fix: Use phrase match or exact match keywords, and build a robust negative keyword list from day one. For guidance on improving your local visibility, professional SEO strategies can complement your paid campaigns.
4. Automated Bidding with No Guardrails
Google pushes Maximise Conversions bidding, which sounds great until you realise it has no spending limits. The algorithm will happily spend your entire monthly budget in a week if it thinks those clicks ‘might’ convert.
Fix: Start with Manual CPC or Enhanced CPC. Set daily budgets conservatively. Only switch to automated bidding once you have 30+ conversions and a clear cost-per-acquisition target.
5. All Locations in Your Target Area
By default, Google targets ‘people in, or who show interest in’ your location. This means someone in Sydney searching for ‘Melbourne plumber’ could trigger your Melbourne ads—even though they’re not in your service area.
Fix: Change location settings to ‘people in or regularly in your targeted locations’. Exclude areas you don’t serve. A professional Google Ads agency can help refine your geographic targeting for maximum ROI.
6. Suggestions and Recommendations
Google’s ‘optimisation suggestions’ often push you to add more keywords, increase budgets, or expand to new networks. While some suggestions are useful, many are designed to increase your spending, not your results.
Fix: Review every suggestion critically. Don’t auto-apply. Ask: ‘Will this improve my ROI or just increase Google’s revenue?’
Why Broad Match Keywords Without Proper Negative Lists Waste 40–60% of Small Business Budgets
Broad match is Google’s default keyword match type, and it’s a budget killer for small businesses without robust negative keyword management. Here’s why:
The Hidden Cost of Irrelevant Clicks
With average Google Ads CPC ranging from $4.66 to $5.26 in Australia, every irrelevant click hurts. A Melbourne dental practice bidding on ‘teeth whitening’ might trigger ads for:
- ‘DIY teeth whitening kits’ (people shopping, not booking appointments)
- ‘Teeth whitening courses’ (aspiring professionals, not patients)
- ‘Natural teeth whitening remedies’ (people avoiding professional treatment)
At $8–15 per click for dental keywords, those wasted clicks add up fast. With 20-30 irrelevant clicks per day, you’re losing $160–450 daily—over $4,800–13,500 monthly—on traffic that will never convert.
Building a Negative Keyword Arsenal
A proper negative keyword list should include:
- Job-related terms: ‘jobs’, ‘careers’, ‘hiring’, ’employment’, ‘salary’
- Educational terms: ‘course’, ‘training’, ‘certification’, ‘how to’, ‘tutorial’
- DIY/free alternatives: ‘DIY’, ‘free’, ‘cheap’, ‘discount’, ‘homemade’
- Informational queries: ‘what is’, ‘why does’, ‘history of’, ‘images of’
For businesses needing comprehensive PPC and SEO strategy, working with specialists who understand both organic and paid search can significantly reduce wasted ad spend whilst building long-term visibility.
Quality Score Decoded: How Your Landing Page Experience Silently Inflates Your Cost-Per-Click
Quality Score is Google’s 1–10 rating of your ads, keywords, and landing pages. It directly impacts your CPC—improving from a score of 5 to 8 can reduce your costs by 37% or more.
The Three Pillars of Quality Score
- Expected CTR: Will your ad get clicked? Based on historical performance and ad copy relevance.
- Ad Relevance: Does your ad match the search query? Generic ads kill your score.
- Landing Page Experience: Does your landing page deliver what the ad promises? This is where most DIY campaigns fail.
Landing Page Red Flags That Destroy Quality Score
- Sending all traffic to your homepage: Users want specific answers, not to navigate your site.
- Slow page speed: Pages taking over 3 seconds to load get penalised.
- Poor mobile experience: 68% of clicks come from mobile—if your page isn’t mobile-optimised, you’re losing money.
- No clear call-to-action: Users bounce when they don’t know what to do next.
- Thin content: Pages with minimal information or excessive ads hurt your score.
A professionally designed landing page tailored to your Google Ads campaigns can dramatically improve Quality Score, reduce CPC, and increase conversion rates—often paying for itself within the first month.
Ad Scheduling and Device Bid Adjustments: The Two Levers Most Business Owners Never Touch
Default Google Ads campaigns run 24/7 on all devices at the same bid. This is a massive missed opportunity. Here’s how to optimise:
Ad Scheduling (Dayparting)
Not all hours are created equal. A plumber might get high-quality ’emergency’ searches at 7 PM, whilst a B2B software company gets most conversions between 9 AM–5 PM on weekdays.
How to use it:
- Run your campaign for 2-4 weeks to gather data
- Review ‘Dimensions’ > ‘Time’ > ‘Hour of Day’ in Google Ads
- Identify your peak conversion hours
- Increase bids by 20-50% during peak hours; decrease by 30-50% during low-performing times
Device Bid Adjustments
With 68% of clicks coming from mobile devices, you’d think mobile would convert better. Often, it doesn’t. Desktop users typically have higher intent and complete longer forms more easily.
Common adjustments:
- Service businesses (plumbers, electricians): +30-50% on mobile (high emergency intent)
- Professional services (lawyers, accountants): -20-40% on mobile (users research on phones, convert on desktop)
- E-commerce: Test both—mobile checkout friction can hurt conversions despite high traffic
How to Read a Search Terms Report and Turn It Into a Negative Keyword Goldmine in 30 Minutes
The Search Terms Report is your window into what people actually searched before clicking your ad. It’s where you’ll discover both hidden opportunities and budget-draining waste.
Step-by-Step 30-Minute Audit
- Step 1 (5 minutes): Go to Campaigns > Keywords > Search Terms. Set date range to last 30 days.
- Step 2 (10 minutes): Sort by ‘Cost’ (highest first). Identify searches that cost money but never converted. Look for patterns—are you paying for ‘jobs’, ‘courses’, or ‘DIY’?
- Step 3 (10 minutes): Add negative keywords. Select irrelevant searches, click ‘Add as negative keyword’, choose campaign or account level.
- Step 4 (5 minutes): Bonus—find high-intent searches you’re not targeting. Add profitable search terms as new exact or phrase match keywords.
Pro Tip: Export the report to CSV. Use Excel filters to spot patterns faster. Create a master negative keyword list you can apply to future campaigns.
If you’re managing multiple campaigns across different platforms, this 30-minute routine should be repeated weekly. The more regularly you prune wasted spend, the healthier your ROI becomes.
Signs It's Time to Hand Over Your Account: The Audit Checklist a Good Google Ads Agency Will Run
DIY Google Ads can work—for about 10-15% of small businesses with the time, skills, and dedication to optimise continuously. For everyone else, professional management pays for itself. Here’s the honest audit checklist:
Account Health Indicators
- Conversion tracking not set up or broken: You’re flying blind without conversion data.
- Quality Score below 5 on most keywords: You’re paying a premium for every click.
- Search impression share below 50%: Competitors are dominating your keywords.
- No negative keywords: You’re wasting 40-60% of your budget.
- All campaigns use broad match: Traffic is unfocused and expensive.
- Click-through rate below 2%: Your ads aren’t compelling.
- Conversion rate below 3%: Your landing pages aren’t converting.
- No ad testing: You’re leaving performance gains on the table.
Operational Red Flags
- You haven’t logged in for over a week: Campaigns need daily or weekly optimisation.
- You’re spending more but getting fewer leads: Efficiency is declining without intervention.
- You don’t understand half the metrics: Ignorance costs money in Google Ads.
- Your time spent on Google Ads costs more than hiring an agency: If you’re billing $150/hour, 10 hours monthly = $1,500—often more than an agency fee.
What a Good Agency Should Deliver
- Comprehensive account audit within first week
- Conversion tracking setup and verification
- Ongoing keyword refinement and negative list management
- A/B testing of ad copy, landing pages, and audiences
- Monthly reporting with clear ROI metrics
- Transparent communication (no smoke and mirrors)
The Bottom Line
DIY Can Work, But Most Business Owners Aren't Equipped
Google Ads can deliver exceptional ROI—but only if you know what you’re doing. The six default settings we’ve covered are designed to maximise Google’s revenue, not yours. Broad match keywords without negative lists burn through budgets. Poor Quality Scores inflate your CPC by 37% or more. And if you’re not using ad scheduling and device adjustments, you’re overpaying for low-performing traffic.
For Melbourne small businesses competing in high-CPC industries like dental, legal, and home services, the difference between a profitable campaign and a money pit often comes down to expert optimisation. If you’re spending $3,000+ monthly on Google Ads and not seeing consistent ROI, it’s time for a professional audit.
21 Webs specialises in Google Ads management for Australian small businesses, combining performance-driven PPC with long-term SEO strategies. Contact us at sales[at]21webs.com.au for a free account audit.
