Digital advertising is paid promotion on online platforms such as Google Search, YouTube, Facebook, Instagram, LinkedIn and websites in display networks. Each platform reaches people at a different stage: search ads catch people already looking for a solution, while social, video and display ads create demand among people who are not yet searching. An effective digital advertising plan matches each platform to a stage of the buying journey, tracks every conversion in one place and moves budget towards the campaigns that bring profitable customers.
The main types of digital advertising
- Search ads: text ads on Google or Bing results, triggered by keywords. They capture existing demand and usually convert well. Managing them is covered in detail on our PPC management page.
- Social ads: image, video and carousel ads on Facebook, Instagram and LinkedIn, targeted by audience rather than search terms.
- Video ads: YouTube and short-form video placements that build awareness and explain products in seconds.
- Display ads: banners shown across partner websites and apps, useful mainly for retargeting and reach.
- Shopping and product ads: product images, prices and store names shown directly in search results, built from a product feed.
- Automated campaign types: such as Google’s Performance Max, which runs one campaign across Search, YouTube, Display, Discover, Gmail and Maps and lets Google’s systems decide where ads appear.
Matching platforms to the buying journey
People rarely buy after seeing a single ad. A practical way to plan is in three stages:
- Awareness: reach new people who match your customer profile with video and social ads, judged on cost per thousand views and how many watch to the end.
- Consideration: show proof, comparisons and offers to people who engaged with earlier ads or visited your website, judged on clicks and time on site.
- Conversion: search ads and retargeting aimed at people ready to act, judged on cost per lead or sale.
Small budgets usually start at the conversion stage, with search ads and retargeting, then add awareness campaigns once those are profitable.
Audience targeting on social platforms
Social platforms target people rather than searches. The main audience types are:
- Core audiences: location, age, language, interests and behaviours.
- Custom audiences: website visitors, video viewers, people who engaged with your page, or uploaded customer lists.
- Lookalike audiences: new people who resemble an existing customer list.
- Broad targeting: minimal restrictions, letting the platform’s algorithm find buyers based on conversion data. It works well once conversion tracking is reliable.
Some categories have restrictions. Meta requires ads about housing, employment, financial products and services, and social issues, elections or politics to be declared as a Special Ad Category, and in some regions it limits targeting by age, gender, postcode and lookalikes for those ads. Political and social-issue ads also need authorisation and a “Paid for by” disclaimer.
Creative that performs
On social and video platforms, creative quality now affects results more than targeting settings, because algorithms decide who sees an ad based on how people respond to it. Strong ad creative usually:
- Shows the product, person or outcome in the first one to two seconds.
- Works with the sound off, using captions or on-screen text.
- Uses vertical formats for Reels, Stories and Shorts, and square or landscape formats elsewhere.
- Makes one clear offer with one clear next step.
- Is refreshed regularly, because the same ad shown too often loses effect.
Testing several creative ideas at once, then moving budget to the winners, is usually more productive than adjusting bids.
Tracking conversions across platforms
Each platform reports its own results and often claims credit for the same sale. Reliable tracking uses three layers:
- Platform tags: the Google tag and the Meta Pixel installed on the website, recording key actions.
- Server-side events: Meta’s Conversions API and Google’s enhanced conversions send conversion data from your server or CRM, which is more reliable when browsers block cookies, and can include later events such as qualified leads.
- One source of truth: analytics with UTM-tagged links and CRM data, used to compare platforms on the same terms.
Setting and splitting a budget
Start from the cost per customer you can afford, worked out from average order value, profit margin and how many leads become customers. Allocate most of the budget to proven channels and keep a smaller share for testing new audiences, platforms or formats. Review weekly, but give campaigns enough time and conversions to exit their learning period before making major changes.
Platform fees and taxes add to the media cost. For example, advertisers billed in India pay GST on Google Ads purchases, so budget for taxes on top of spend.
Measuring results that matter
- Cost per lead or acquisition (CPL or CPA) for lead generation and sales campaigns.
- Return on ad spend (ROAS) for ecommerce, calculated from revenue against ad cost.
- Lead quality: the share of leads that sales teams accept and convert.
- Blended cost per customer: total marketing spend divided by new customers, which avoids double counting between platforms.
- Frequency and reach for awareness campaigns, to spot when audiences are seeing ads too often.
Paid campaigns work best alongside social media marketing that builds an engaged audience to retarget, and a lead generation process that follows up on every enquiry quickly.