The fastest way to lose money online is running ads on the wrong platform. You've got a limited budget, limited time, and zero room for expensive mistakes. Should you start with Google Ads or Facebook Ads?
Here's the uncomfortable truth: most micro-businesses waste their first £300–£500 testing both platforms simultaneously, spreading their budget so thin that neither campaign gets enough data to succeed. Then they conclude "paid ads don't work for us" and give up entirely.
This article forces a different approach: make one informed decision, commit 100% of your budget to a single platform for 90 days, and actually learn what works.
The decision isn't about which platform is "better"—it's about which platform matches how your customers actually buy. Are they actively searching for your solution right now (Google), or do they need to discover it while scrolling through their feed (Facebook)?
By the end of this guide, you'll know exactly which platform deserves your first test budget, why, and what minimum spend you need to get meaningful results.
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What You'll Have When Done:
A finalized decision on where your first £100–£300 of ad spend will go, with confidence that you've chosen the right platform for your business type.
Time Needed: 30 minutes
Difficulty: Confident (requires honest assessment of your business model)
Prerequisites:
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Jump to:
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If you need an answer fast, work through these three questions in order. They'll point you to the right platform based on fundamental business realities, not marketing hype.
#[INFO]
Before You Start
Make sure you've completed these prerequisites:
Not sure you've properly set up tracking to measure conversion? NetNav's audit checks if your Google Analytics and conversion tags are firing correctly across your key pages in 60 seconds.
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Demand Capture (Google): Your customers already know they need your solution. They're typing "emergency plumber Manchester" or "divorce solicitor near me" into Google right now. You want to appear when they search.
Demand Generation (Facebook): Your customers don't know they need your solution yet. They're scrolling Instagram and you need to interrupt them with something compelling enough to make them stop and consider your offer.
Your answer: If people are actively searching for what you sell, lean Google. If you need to create awareness first, lean Facebook.
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Google Check: Open Google in a private browser window. Type in 3–5 phrases your ideal customer would use when they're ready to buy. Do you see:
If YES to all three: Google Ads is viable. There's existing demand.
If NO: Either the search volume is too low, or your product/service is too new. Facebook is your better starting point.
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Google Ads requires:
Facebook Ads requires:
Your answer: Which creative format can you produce consistently? If you're better with words than visuals, Google has a lower creative barrier. If you've got strong product photography or can create simple videos, Facebook rewards visual quality.
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Minimum viable test budgets:
These aren't "recommended" budgets—they're the absolute minimum needed to gather enough data to make informed decisions. Anything less and you're just guessing.
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[MEDIA:DIAGRAM:ads-decision-flowchart]
Caption: The 3-question flow to determine your starting ad platform.
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Write this down (seriously, write it):
Platform: [Google Ads / Facebook Ads]
Start Budget: £[X] per day for 30 days
Goal: [Lead / Sale / Awareness]
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#[SUCCESS]
Validation Checklist
You're ready to move forward when:
Verification Method: You've written down: Platform: [Google/Facebook], Start Budget: [£X], Goal: [Lead/Sale/Awareness]
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✅ Completed the quick version?
If you chose Google, move on to Google Ads Starter Guide for Micro Budgets.
If you chose Facebook, head to Facebook & Instagram Ads Starter Guide.
Want deeper confidence in your decision? Continue below for the complete walkthrough.
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This section walks through the strategic thinking behind each platform choice, so you understand not just what to do, but why it matters for your specific business model.
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The core distinction between Google Ads and Facebook Ads isn't about features or cost—it's about user intent at the moment they see your ad.
Google Ads = Demand Capture
When someone types "emergency plumber Croydon" into Google at 11pm, they have:
Google Ads (specifically Search Ads) let you appear at this exact moment of high intent. You're not creating demand—you're capturing demand that already exists.
This is why Google Ads work brilliantly for:
Facebook Ads = Demand Generation
When someone scrolls Instagram at 11pm, they're:
Facebook and Instagram Ads interrupt this passive scrolling. You need to create interest where none existed 3 seconds ago. This requires:
Facebook Ads work brilliantly for:
The key question: Are your customers actively searching for your solution, or do they need to discover it?
For more context on how search-based advertising fits into your broader marketing strategy, see understanding the difference between SEM and PPC.
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How you find your customers differs dramatically between platforms.
Google Ads: Targeting by Keywords (What They Need)
On Google, you target keywords—the actual phrases people type into the search box. Your targeting options are:
This requires preliminary keyword research before you launch. You need to know:
The advantage: You're reaching people who've self-identified their problem. They've literally told Google what they need.
The limitation: If nobody searches for your solution, Google Ads won't work. Period.
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Facebook Ads: Targeting by Demographics (Who They Are)
On Facebook and Instagram, you target people—based on who they are, not what they're searching for. Your targeting options include:
This requires a detailed understanding of your Ideal Customer Profile. You need to know:
The advantage: You can reach people who fit your customer profile even if they've never heard of you.
The limitation: You're interrupting them. Your ad needs to be compelling enough to overcome their natural resistance to advertising.
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The content you need to create differs significantly.
Google Search Ads: Text-Based
Google Search Ads are primarily text:
You need to be good at:
The creative barrier is lower. If you can write clear, benefit-focused copy, you can create effective Google Ads. No design skills required.
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Facebook/Instagram Ads: Visual-First
Facebook and Instagram Ads are dominated by visuals:
You need:
The creative barrier is higher. Boring visuals = invisible ads. You're competing with professional content creators, influencers, and friends' holiday photos for attention.
Before you send expensive traffic anywhere, remember that paid ads rely heavily on site health and speed. NetNav can audit your core landing pages and identify speed bottlenecks or missing trust signals—factors that directly impact your ad conversion rate.
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Both platforms require more than just ad spend—you need infrastructure to convert that traffic.
Landing Page Requirements
Sending ad traffic to your homepage is a waste of money. You need dedicated landing pages that:
If you don't have landing pages yet, see create dedicated landing pages without hiring a developer.
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Cost Per Lead Reality
Before you spend a penny, you need to calculate your required return on investment. Work backwards:
Example:
If Google Ads in your industry typically costs £50 per lead, you're profitable. If it costs £150 per lead, you'll lose money on every customer.
This calculation must happen before you launch. Otherwise, you're gambling, not marketing.
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[MEDIA:TABLE:google-vs-facebook-comparison]
Caption: Key Differences: Targeting, Cost Structure, and Creative Needs.
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Apply these four factors to your specific business:
Choose Google Ads if:
Choose Facebook Ads if:
Still genuinely torn? Default to Google if you're a service business, Facebook if you're a product business. Then commit for 90 days before reconsidering.
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#[SUCCESS]
Final Validation
You're ready to launch when:
Verification Method: You've written down: Platform: [Google/Facebook], Start Budget: [£X], Goal: [Lead/Sale/Awareness]
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🎉 Committed to a platform?
If Google is your choice, you're ready for Google Ads Starter Guide for Micro Budgets.
If Facebook is your choice, head straight to Facebook & Instagram Ads Starter Guide.
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Common Problems & Fixes
Problem: "I feel like I need to be on both platforms."
Fix: No, you don't. Splitting a £300 budget across two platforms guarantees you'll fail on both. You need concentrated spend to gather meaningful data. Commit 100% of your limited budget to one platform for the first 90 days. Once you've mastered one channel and it's profitable, then consider expanding.
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Problem: "I sell a completely new product/service—nobody searches for it."
Fix: Focus entirely on Facebook/Instagram (Demand Generation). Google Ads requires existing search volume. If your product is genuinely innovative, you need to create awareness first. Facebook's interest-based targeting lets you reach people who fit your customer profile even if they don't know your solution exists yet.
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Problem: "I don't know what my Cost Per Lead should be."
Fix: Use the calculation in Step 4 to work backward from your profit margin. If the required CPA is unrealistic for paid traffic in your industry (ask in business forums or Facebook groups for benchmarks), you have two options:
Don't guess. Math doesn't lie.
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If you chose Google Ads:
→ Google Ads Starter Guide for Micro Budgets – Set up your account, link conversion tracking, and launch your first search campaign.
If you chose Facebook Ads:
→ Facebook & Instagram Ads Starter Guide – Create your Business Manager, install the Pixel, and launch your first campaign.
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You've committed to a paid strategy! That's a huge step forward. Before you spend your hard-earned ad budget, make sure your foundation is solid.
NetNav can audit your entire site across 9 pillars in 60 seconds—checking everything from page speed and mobile responsiveness to conversion tracking and trust signals. Know exactly what needs fixing before you send paid traffic to your website.
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