What is digital marketing and how to start?

Digital marketing is a set of activities that help a company acquire customers and sell through digital channels, while evaluating results based on data.

In practice, many companies struggle with the fact that they “do something online” but cannot say what works and why, so they need an approach based on measurable indicators. This article will show you exactly what digital marketing is, which problems it most often solves, and how to set sensible goals at the start. You will also learn how to look at the channel where customers are already searching for a solution (e.g. Google), and how to plan activities so that return (ROI) can be calculated almost in real time. Rather than vague generalities, we will focus on practical frameworks: goals, metrics and the most common applications in a company. If you want to start without chaos, keep reading and treat this material as a starting point for your first 90-day plan.

what is digital marketing and what problems does it solve?

Digital marketing covers all marketing activities carried out in digital channels (e.g. search engines, social media, email, apps, websites) whose results can be measured with data. It differs from traditional marketing mainly in the pace of testing, precise targeting and the ability to calculate ROI almost in real time. This approach makes it easier to make decisions based on metrics, rather than gut feeling. As a result, it is easier to separate the activities that genuinely deliver results from those that only “look good”.

Digital marketing most often helps a company solve three issues: lead generation or sales, building recognition and maintaining customer relationships (retention). In practice, it also works well for a small local business; for example, a Google Ads campaign for keywords such as “dentysta Kraków” combined with a Google Business Profile can generate visits and calls within days. If your challenge is no sales despite traffic, the problem often does not lie with the “traffic” itself, but with a lack of activities at the consideration and decision stages. In that case, retargeting, comparisons, reviews, case studies and time-limited offers can help.

1. 01Digital channelsSearch engines, social media, email, websites.
2. 02Measurable resultsPrecise data, tests, ROI calculation.
3. 03Problem solvingLead generation, sales, relationship building.

Key value: Measurable activities, precise targeting, faster ROI, decision-making based on data.

what are the most important types of goals in digital marketing?

The most important digital marketing goals fall into three categories: brand (reach and frequency), performance (conversions) and loyalty (returns and LTV). This division makes it easier to match channels, content and the way results are measured to what actually needs to happen in the business. If you do not know what to choose at the start, set 1 main goal and 2 supporting goals for a 90-day period. For example: main = sales, supporting = newsletter sign-up and website traffic.

The choice of goal should immediately indicate the measures of success, otherwise it is easy to “inflate” nice numbers that have no bearing on the real outcome. In sales, the key metrics are the relationship between CPA and margin, and ROAS, while for leads what matters is the cost per lead and its quality (e.g. the percentage of leads closed into sales). If you want to organise activities over time, funnel models such as TOFU/MOFU/BOFU or AARRR are useful, because they suggest how to plan communication at each stage. It is precisely the consistency of goal, funnel and metrics that makes activities measurable and allows them to be systematically improved in the following weeks.

which digital channels are key for your business?

Key digital channels are those where your customers are already searching for a solution, or those where you can quickly test messages and offers using hard data. In practice, the choice starts with matching the channel to intent: some sources deliver “I need it now”, while others are better at building demand and the consideration stage. If you do not know where to start, choose a channel with active intent (often Google/SEO) and one channel for quick tests (e.g. Meta Ads). This way you will see faster what delivers results and what merely boosts reach without translating into conversions.

The most commonly used channels in digital marketing include organic and paid activity, so it is worth treating them as a “set” rather than a single tactic. In e-commerce a typical mix includes, among other things, a product feed (Merchant Center), Performance Max/Shopping campaigns, dynamic remarketing, category and product SEO and e-mail/SMS after basket abandonment. For local services, Google Business Profile, reviews, local SEO (keywords + city), simple landing page and search ads for intent-driven queries are particularly important. Social media usually support reach, but Google most often captures the “I need it now” intent more effectively.

• SEO
• Google Ads
• Social Ads (Meta, TikTok, LinkedIn)
• e-mail marketing
• content marketing
• marketplace (e.g. Allegro)
• affiliate marketing
• marketing automation

1. 01Match to intentSources of “I need it now” (e.g. SEO, Google)
2. 02Build demand and considerationBuilding awareness (e.g. Social Media)
3. 03Quick tests and dataTest messaging (e.g. Meta Ads)

Choose a channel with active intent and one for quick testing so you can see results fast.

how do you define a persona and customer segmentation?

You define a persona as a description of a typical customer that organises goals, objections, language, budget and point of purchase so that it is easier to choose messages and channels. Such a profile helps you avoid a situation where you publish content or set up ads “for everyone”, and then it is hard to draw conclusions from the results. A persona is not limited to demographics — it should show what the customer wants, what they are afraid of and what is holding them back from making a decision. A well-described persona simplifies decisions: what to promise in the UVP, which CTA to use and where to direct traffic.

The best way to gather data for a persona is through a short, specific study based on real conversations and actual user queries. If you are wondering where to get data for a persona, start with 10 customer interviews, then review queries in Google Search Console and questions from the helpline or DMs. On this basis, it is easier to split audiences into segments that differ by intent and stage of decision-making (e.g. people still gathering information vs people comparing offers). Segmentation makes sense when it translates into a different message or a different path on the site, rather than serving merely “for the sake of order”.

what are the basic indicators and metrics to monitor?

The basic indicators in digital marketing are metrics describing the effectiveness of ads and on-site activity, which help assess whether the result stacks up commercially. The abbreviations you will most often come across are CTR, CPC, CPA/CAC, ROAS, CVR and LTV, because they cover the entire journey from click to conversion and the value of the customer over a longer period. If your goal is sales, it is crucial to compare CPA with margin and keep ROAS under control. In lead-generation campaigns, alongside cost, quality is equally important, for example the proportion of leads closed by sales.

• CTR – click-through rate
• CPC – cost per click
• CPA/CAC – acquisition cost (e.g. conversion or customer)
• ROAS – revenue relative to ad cost
• CVR – conversion rate
• LTV – customer lifetime value

The most important thing is to choose metrics according to the objective and interpret them consistently, rather than “chasing” random spikes in reach or clicks. CTR and CPC help assess message fit and cost of reach, but on their own they do not determine whether the business makes money. CPA/CAC and CVR show how much the outcome really costs and how the conversion path works after a user lands on the site. In practice, the winner is the one who looks not only at cost but also at value, because ROAS and LTV provide the context for deciding whether to scale a campaign.

1. 01CTR & CPCMatch & cost
2. 02CPA/CAC & ROASProfitability & profit
3. 03CVR & lead qualityConversion & effectiveness
4. 04LTVLong-term value

The key is to match metrics to the business goal and interpret them consistently.

what skills are key in digital marketing?

Key skills in digital marketing are the competencies that allow you to plan the funnel, create messaging, run tests and make decisions based on data. The most useful are: analytics (GA4), sales copywriting, UX basics, working with creative assets (video/graphics), understanding the funnel and margin, and testing. These areas combine “what you say” (the message), “where you say it” (the channel) and “whether it works” (measurement). If you master measurement, offer and testing at the same time, you move faster from ideas to results.

You do not need to know how to code to get started, but basic HTML/CSS and an understanding of GTM speed up implementation and make it easier to talk to a developer. It is also a simpler way to structure work on the site, events and changes that affect conversion. In practice, digital marketing is rarely done alone, so effective collaboration on content, creatives and implementation also matters. The best skill set is one that lets you formulate a hypothesis independently, run a test and assess the result in numbers.

what tools are essential for effective analytics and measurement?

For effective analytics and measurement in digital marketing, you need a set of tools that collects events, organises tags and lets you report on KPI without guessing. The foundation is GA4 (event measurement), Google Tag Manager (implementation and tag order) and Google Search Console (visibility and queries from Google). For quick reporting of results in a company, a dashboard in Looker Studio is useful because it makes it easier to track cost, the number of conversions and week-on-week trends. Most problems in data result not from a lack of tools, but from inconsistent conversion setup and a lack of consistency in naming.

GA4 is worth configuring so that it measures key events (e.g. a lead or purchase) and immediately filters out internal traffic, then connecting it to Google Ads and Search Console. In GTM, order makes a big difference, so stick to a naming convention (e.g. “GA4 – Event – lead_form_submit”) and keep tag documentation in a spreadsheet with descriptions of triggers and variables. UTM parameters are essential if you want to know unambiguously where a sale or lead came from, provided that campaign names remain consistent. This way, in GA4 you can compare channels and creatives faster without manually “working out” what was served.

Compliance and measurement quality in the EU are based on, among other things, Consent Mode v2, so you also need a consent banner (e.g. Cookiebot or OneTrust) and a privacy policy. For conversion rate optimisation (CRO), behavioural analysis tools such as Microsoft Clarity or Hotjar are useful because they show recordings and heatmaps. If you sell via leads, an important part of the stack is a CRM (e.g. HubSpot CRM, Pipedrive or Livespace) with lead source tagging (UTM) and status. Regularly keep an eye on data hygiene: test events in GA4 DebugView, reconcile orders with your store system and spot unnatural conversion spikes.

how to plan a marketing strategy for the first 90 days?

The marketing strategy for the first 90 days is easiest to split into 3 sprints: (1) settings and tracking, (2) paid channel tests + 1–2 landing pages, (3) scaling the winning campaigns and producing SEO content. This structure organises the work: first you set up reliable measurement, then you draw lessons from the tests, and only at the end do you increase volume. Sprint goals can be simple: sprint 1 = properly measured conversions, sprint 2 = stable CPA, sprint 3 = growth in volume while maintaining CPA/ROAS. If the plan does not lead to decisions every week, it is not a strategy — it is a to-do list.

It is worth dedicating the first day to a quick audit of the basics: site speed in PageSpeed Insights, visibility in Search Console, tracking accuracy in Tag Assistant and an assessment of the offer and UX on mobile. The priority is errors that block conversion, such as forms not working, no contact details, no information about price or turnaround time, as well as slow loading. For a landing page, the key elements are those that answer typical user questions: UVP, benefits, proof (reviews), FAQ, a clear CTA and good speed (Core Web Vitals). If there are clicks but no leads, check whether the landing page really closes objections about price, process and delivery time.

In the test sprint, set up campaigns so that you collect data and draw conclusions quickly, rather than spreading budget across everything at once. When time matters and you need quick signals, start with Google Ads Search for high-intent keywords and send traffic to a dedicated landing page, not the homepage. In tests, keep the right order: first the offer/USP, then keywords or targeting, and only then the creatives, because without a strong offer, optimising the rest usually adds little. Treat this stage as learning: what lifts CTR, and what actually closes CVR and acquisition cost.

Plan your budget based on cost per click and conversion, because that shows the real cost of a result the fastest (e.g. at CPC 2 zł and CVR 2% the cost of a lead/sale from traffic alone is around 100 zł). If you need a “minimum viable test”, a level of 1500–5000 zł per month for one channel often works, so you do not get bogged down in data randomness. Every week, compare cost, the number of conversions, CPA/ROAS and the top campaigns and top creatives, then make 1–3 decisions: switch off the weak ones, add budget to the strong ones, plan new tests. When scaling, increase the budget by 10–20% every 2–3 days, especially in algorithm-driven channels (Meta and Performance Max), so you do not break the learning.

Throughout the 90-day cycle, avoid the typical mistakes that can drag results down faster than “bad creatives”: no conversion tracking, sending traffic to the homepage, overly broad targeting, skipping keyword exclusions and nervous reshuffles every few hours. Give each campaign at least 5–7 days to gather data before evaluating it, otherwise you will be optimising blind. Record the adjustments you make and keep an implementation checklist so that you do not fall into the same ruts in later sprints. As a result, the 90 days are not just “activities”, but also a concrete operating system and repeatable, data-driven decisions.