In brief
- The three levers do not buy the same thing. SEO buys durability, search advertising buys immediacy, social media buys awareness and social proof.
- How each behaves when you stop decides the split. Cut search ads and traffic falls the same day. Cut SEO and it keeps producing for months. Cut social and it degrades slowly, without warning.
- A tight budget concentrates. Three equal shares when resources are limited means three invisible results instead of one readable result.
- Without reliable measurement, the trade-off is a bet. You cut the lever that defends itself least well in the reports, not the one that produces least.
A distributor of professional equipment calls us after four quarters of digital marketing. Monthly budget: €3,000, split into three equal shares between organic search, paid search and social media. Online revenue has not moved.
Of the €1,000 a month in paid search, about €700 goes on queries containing the company’s name, so on customers who were already looking for it. On the SEO side, four articles in twelve months. On social, three posts a week on a page followed by 240 people, a good share of them suppliers.
None of the three was badly executed. All three were underfunded at the same time, for want of a decision.
What you really buy with each lever
The useful question is not “which is best”, but “what do I get for this euro, and for how long”.
SEO buys durability
A euro of organic search produces nothing straight away. It produces an asset: an indexed page that will receive visits long after it has been paid for. It is the only one of the three levers whose cost per visit falls over time.
The other side is the delay: you pay now, you collect later. The production mechanics are detailed in our guide to combining SEO and content marketing.
Search advertising buys immediacy
A euro of paid search buys a visit, today, on an intent you choose. The day after you stop, nothing is left. This lack of lasting effect is not a flaw, it is what you are paying for. A new inventory does not change this rule: when advertising opens in ChatGPT, the question to settle is still what you will know about your sales once the budget is spent.
It also buys information: three weeks of campaigns tell you which queries convert, at what price, on which pages. Automated bidding driven by machine learning speeds up that learning, provided you feed it clean conversions.
Social media buys awareness and proof
A euro of social rarely buys a direct sale. It buys recognition: the fact that your name is not unknown when someone discovers you elsewhere.
The effect is real and hard to measure, which makes it vulnerable in budget meetings. It shows in your ads’ click-through rate, in the volume of searches for your brand, in the length of the sales cycle. A collaboration with a creator in your sector buys the same thing: borrowed legitimacy, not traffic.
Delay, entry cost, effect when you stop
The decisive column below is the second to last: what remains when you stop paying.
| Lever | First measurable effect | Entry cost | Effect when you stop | Skills required |
|---|---|---|---|---|
| SEO | 3 to 9 months depending on competition | Low in media, high in production time | Slow decline, over months or even years | Writing, technical, link building |
| Search ads | 24 to 72 hours | The media budget itself, from the first euro | Clean stop, the same day, with no tail | Account structure, bid management |
| Social | 2 to 6 months for a useful audience | Low in media, steady in production | Gradual, silent degradation | Creative, editorial consistency |
Splitting a tight budget
Below a certain threshold, it is no longer about dosage but about choosing what you will not do.
Launch, with no awareness or content
Nobody searches for your name and you have nothing to get indexed. SEO has no material, social has no audience. Search advertising is the only lever that produces traffic, and above all data, within a few weeks.
A split that works: 70% search ads, 20% SEO foundations (site structure, service pages, five to ten pieces of content), 10% minimum social proof. Search ads act as a lab: the queries that convert when you pay tell you which content to produce next.
An established business that has plateaued
Traffic is stable, revenue stagnates, and adding ad budget changes nothing. The problem is rarely acquisition, it is further down.
Gaining a point of conversion rate often costs less than increasing media by 20%, and the effect applies to all three levers at once. Our article on optimising conversion rate when traffic is low describes the way to go about it. Once that work is under way, a 40% SEO, 30% non-brand search ads, 30% social split frees up room again.
Strong seasonality
The trap is to align all three levers on the peak. Search ads are managed by the week, SEO is prepared six months ahead: publishing your seasonal content during the peak means paying for production that has no effect this year.
The order that works: SEO six to three months before, social pressure in the six weeks before, media concentrated during the peak, then analysis of paid queries for the next season’s editorial plan.
What to remember Below €1,500 a month all costs included, three equal shares produce three half-actions. Choose the lever suited to your situation, hold it for six months, and only open the second when the first gives a readable result.
The trap of deciding blind
All of this collapses if you do not know where your sales come from: the three levers are not measured with the same reliability.
Search ads report in their own tool, with the most favourable attribution models. SEO and social depend on browser-side tags, which blockers, browser restrictions and consent refusals degrade constantly. The best-instrumented lever therefore always looks the best-performing, and it is the one you protect when it is time to cut.
We described this mechanism in our article on tracking figures that lie without warning. Before deciding, reconcile your reported conversions with your real orders over thirty days: if the gap exceeds 10%, your decision rests on false figures. Datafirefly Limited, a publisher in the same group as Dotsland, offers a server-side tracking platform whose free plan of 10,000 requests a month is enough for this check.
Paying for your own name: justified or wasted
This is the most poorly decided budget line. Buying ads on your brand mechanically produces excellent indicators: low cost per click, high conversion rate, flattering return on investment. These figures prove nothing: those customers were already looking for you.
The spend is justified in four cases: a competitor bids on your name, resellers or marketplaces capture your brand queries, your name is an everyday word, or you have a message to control during a promotional operation.
It is wasted when you already hold the first organic position, with no visible competitor. The test needs no theory: cut the brand campaign for seven days and look at total revenue, not the figure reported by the ad platform.
The mistake not to make Accepting a single package covering all three levers with no separate reporting. Ask three questions before signing: what share of the budget goes to each lever, what indicator commits the provider on each, and what would happen if one were cut for a month. If the answer comes down to “it’s all connected”, you are paying for three lines and managing none.
What you can do this week
- Rebuild the real split over the last twelve months by lever, media and working time included. The result almost always differs from what you thought you were spending.
- Isolate brand queries in the search terms report and calculate the share of budget they absorb.
- Reconcile your reported conversions with your real orders over thirty days, and note the gap as a percentage.
- Set a single indicator per lever for the quarter: non-brand traffic for SEO, non-brand acquisition cost for search ads, searches for your name for social.
- Write down in advance the threshold at which you stop a lever and the date you will look. A decision made in a hurry falls on the wrong line.
These five steps take half a day. Our support on acquisition levers starts there, before any recommendation on the split.
Frequently asked questions
What minimum budget do you need to run all three levers at once?
Below €1,500 to €2,000 a month all costs included, all three in parallel rarely produce a measurable result: a campaign with too few clicks does not learn, two articles a quarter do not establish any ranking.
Should you stop search ads once SEO starts working?
Rarely entirely, often partly. Cut the campaigns on queries where you are now in the top three organic results, then measure total traffic on those queries for four weeks. If organic absorbs it, that budget goes to queries SEO does not yet cover.
Does social media sell, or only build awareness?
It sells indirectly, except for quick-decision products with a strong visual dimension. Its effect shows elsewhere than in the sales attributed to social networks: searches for your brand, ad click-through rates, length of the sales cycle.
How do you know which lever actually generated a sale?
No tool tells you with certainty, since a purchase usually results from several contacts. Two methods give a usable answer: reconciling reported conversions with real orders, and the switch-off test, which cuts a lever for a short period while measuring overall revenue.
Can you entrust all three levers to a single provider?
Yes, provided reporting stays separate and each lever carries its own indicator. The risk of a global package is not competence, it is the impossibility of attributing a result or a failure.
Deciding without picking the wrong lever
The distributor from the start stopped social media for two quarters, halved their brand ads and moved the difference to content and to the technical queries of their trade. Same budget, different result, because the decision finally rested on verified figures.
A trade-off is not decided once a year. It is replayed every quarter, with two questions: which lever produced a provable result, and which one did I keep out of habit.
Unsure how to split your budget between SEO, search ads and social? In a first meeting, we look at three things: the share of your ads that buys your own brand, the gap between reported conversions and real orders, and how your organic traffic has evolved over twelve months. These three figures are almost always enough to say which lever you are overpaying. Let’s talk.