Greg K.SEO and analytics at Adcore · LinkedInEveryone with a website has heard the word SEO, but it usually gets explained either too briefly — “promotion in Google” — or straight in jargon. Here is an explanation for someone who does not work in marketing: what SEO is, how search decides what to show you, what the work on a website consists of, what it gives you, what it does not, and how long it takes.
- SEO is search engine optimization: a plain definition
- SEO or CEO — one letter apart
- How search works: four steps from a page to the results
- What SEO consists of: four directions
- What SEO gives a business
- What SEO does not do, and who it does not suit
- SEO or paid search
- How long to wait for results
- SEO in 2026: what AI search changed
- How to check that SEO is working
- Can you do SEO yourself
SEO is search engine optimization: a plain definition
SEO is the ongoing work on a website that makes its pages appear in the free Google results for the queries your customers actually type. The abbreviation stands for Search Engine Optimization.
The key word here is free. A results page shows two different things: ads, where the advertiser pays for every single click, and organic results, where a place cannot be bought. SEO works with the second kind.
Both blocks look the same — logo, description, product image. What sets them apart is the “Sponsored” line above the top one: every click on it is paid for. The lower spot is not for sale.
That does not make the work free. You pay not for impressions and not for clicks, but for the work itself: making the site load fast, giving it pages for the right queries, a clear structure and mentions on other resources. The difference is that what has been done stays on the site and keeps bringing people in long after this month's invoice is closed.
One more thing worth saying up front. Optimization is a way to make a page genuinely the better answer to a query, not a way to outsmart the algorithm. Google ranks pages by how well they close a person's question; the specialist's job is to make sure the site gives that answer and that the search engine can find it.
SEO or CEO — one letter apart
The two abbreviations differ by a single letter and get mixed up constantly, including in business correspondence. The difference is fundamental.
A simple rule: if the subject is a website, queries and Google, it is SEO. If it is a person running a company, it is CEO. In job listings the abbreviation almost always means the executive; in a conversation about a website it means optimization.
There is one more pair that gets confused less often. SEM (Search Engine Marketing) covers all marketing in search together: both paid ads and optimization. SEO is only its free part.
Meanwhile “SEO”, “search engine optimization” and “SEO promotion” all mean the same thing — just different habits of naming it. Occasionally “promotion” is used for a broader package that includes advertising and reputation work, so in a contract it is worth reading the list of deliverables rather than the name of the service.
How search works: four steps from a page to the results
To understand what optimization actually deals with, picture the path a page of your site travels before anyone sees it in the results. There are four steps, and the page can stop at any of them.
A page can drop out of the race at every step — and the reasons differ each time.
- 1. CrawlingA robot walks the internet through links and downloads pages. For it to reach yours, at least one link must lead there — from inside the site or from an outside resource. A page nothing links to, and which is missing from the sitemap, simply will not be found.
- 2. IndexingGoogle takes the downloaded page apart: what the text is about, what the headings say, what the images show, whether it repeats another page. Then it decides whether to put it into the index — the database the results are built from. Crawled does not mean indexed: a page can be visited and left out.
- 3. RankingWhen someone types a query, Google picks the matching pages from the index in a fraction of a second and puts them in order. It weighs hundreds of signals: how well the text answers the query, whether the page is comfortable to use, how fast it opens, what mentions on other resources say about the site.
- 4. The results pageWhat the person actually sees. Besides ten links it may hold a map with companies, a questions block, images and an answer generated by artificial intelligence — and every such block takes attention away from the ordinary results.
Optimization works differently across these four steps. On crawling and indexing it works technically: so the robot arrives, understands and accepts the page. On ranking it works through content: so the page really answers the query better than its neighbours. The results page itself is out of our control, but we do influence how our result looks in it — through the title, the description and the structure of the page.
What SEO consists of: four directions
SEO is not a single action but several parallel directions of work. They split neatly into four. None of them works alone: a technically flawless site with nothing to say will not rank, and excellent texts on a site that does not open will never be seen.
Technical optimization
Everything about how the site is built inside. Loading speed, correct behaviour on mobile devices, no duplicate pages or broken links, readable URLs, a sitemap.xml and a robots.txt file telling the robot where it may go and where it may not, correct server responses, structured data markup for search engines. This direction is almost invisible to a visitor, yet it decides whether the robot reaches your pages and takes them into the index.
Content and on-page optimization
First come the queries people use to look for what you sell — the keywords a semantic core is built from. Then the structure follows: which pages are needed, what each is about, how they connect. After that the content itself: texts, the H1 and subheadings, the title and description meta tags a person sees in the results, images with captions, internal linking between pages. This is the largest part of the work by volume and the one most often underestimated.
Off-page optimization
Google looks not only at the site itself but at what the rest of the internet says about it: who links to it, from what kind of resources, in what context. Mentions without a link, profiles in directories, a company card on maps belong here too. This direction is slow and the riskiest one: links bought in bulk from questionable sites do damage rather than good. For narrow queries a page can reach the top with no external links at all, if it answers better than its neighbours — but for competitive commercial ones, rising without mentions is close to impossible.
Commercial factors and behaviour
Everything that makes a page usable for a decision: prices, delivery and payment terms, contacts, reviews, photographs, a clear order form. Google does not see your price list through a buyer's eyes, but it does see what users do next — whether they return to the results within a minute or stay on the site. For commercial queries this direction often outweighs the volume of text: it affects conversion directly, that is, the share of visitors who become customers.
Who does all this. An SEO specialist collects the queries, builds the site structure around them, sets tasks for texts and technical fixes, watches indexing and positions, works out why something did not land, and changes the plan. Most of this work is invisible on the site — only its consequences show up in the statistics. In-house it is a fixed salary, freelance it is an hourly rate, in an agency one person runs several projects at once.
What SEO gives a business
The shortest answer is a steady flow of people who are already looking for what you sell. Behind it, though, stand several separate things.
- Traffic that does not switch off with the budget. A page that has reached the top keeps bringing people next month and a year from now — for as long as it holds its position. Paused advertising stops working the same day.
- The effect accumulates. Every page you work through adds to the previous ones. After a year the site draws people from hundreds of queries at once, not from the ten it was originally built for.
- More trust. A good many people deliberately scroll past the ad blocks and look at the first ordinary results. Being there reads as recognition rather than a purchased slot.
- People at every stage of the decision. Advertising catches those already ready to buy. Optimization also brings in those still figuring things out: comparing options, looking for how to do it themselves, reading about the difference between models. Some of them come back once they are ready.
- The site gets better for every other channel. A faster, clearer page converts a visitor into a customer better when they arrive from ads, a newsletter or social media too.
A separate case is a business tied to a city. Local search is added to the directions above: a company card on maps, reviews, dedicated pages for the city. Such queries are shorter, less contested, and the intent behind them is more concrete — often the fastest result SEO produces. More on that case on our page about SEO promotion in Kyiv.
What SEO does not do, and who it does not suit
Half of the disappointment with optimization grows out of expectations nobody ever promised. So, the limits up front.
- It does not deliver in a week. The first movement shows after two or three months, meaningful traffic closer to six. The reason is not a lazy contractor but mechanics: pages have to be re-crawled, re-evaluated and compared against those already standing higher.
- It does not guarantee first place. Positions are not for sale and are not assigned to a site permanently. A promise of “top 1 in a month” means either a substitution — they will rank you for a query nobody searches — or schemes the site gets penalised for later.
- It does not rescue a weak offer. If the price is above market with no explanation, delivery takes a week and nobody answers the phone, optimization will only bring people to that conclusion faster.
- It does not create demand. SEO works with what is already being searched for. If nobody knows your product and there are no queries, you first need a channel that tells people about it.
- you need sales this month — advertising will work faster;
- the site cannot be changed: someone else's platform, a closed builder, edits forbidden;
- the niche is one-off — a single event, a single property, a two-week season;
- the budget covers either optimization or the product itself — then the product comes first.
SEO or paid search
It is not an either-or choice, but at the start there is usually one budget, so a comparison is worth making.
| SEO | Paid search | |
|---|---|---|
| First results | 2–3 months | on launch day |
| What you pay for | work on the website | every click |
| If you stop | traffic stays and fades gradually | impressions vanish the same day |
| Cost over time | falls: the pages keep working | rises along with competition |
| Speed of change | edits take weeks to land | can be changed within an hour |
| Where it appears | ordinary results | the block marked “Sponsored” |
Advertising is better when the result is needed immediately, you are testing a new product or niche, you run a short campaign or a season of a few weeks. It is also irreplaceable for checking a hypothesis quickly: within two weeks it becomes clear which queries bring enquiries and which merely burn budget.
Optimization is better when demand is steady and recurring, the niche is competitive and clicks are expensive, and the business is not built around a single season. The longer the horizon, the sharper the difference: advertising starts from zero every month, optimization starts from what has already been done.
Together they work better than separately. Data from ad campaigns shows which exact wordings bring customers in — and those wordings go into the optimization plan without guesswork. Pages properly prepared for search, in turn, cost less in advertising, because Google rates their quality higher.
If advertising is already running, that is no reason to postpone optimization. The moment the click budget has to be cut, organic traffic becomes the only remaining source of enquiries — but only if someone has been working on it in advance.
How long to wait for results
This is where expectations diverge most often. Timelines in optimization are long not because there is little work, but because there is always a pause between an action and the search engine's reaction.
Google does not review the whole internet daily. A changed page has to be re-crawled, then re-evaluated, then compared against those already standing higher. On a young site the robot visits rarely, on a large and active one more often. Add to that the fact that your neighbours in the results are not standing still either — and changes end up showing over weeks rather than days.
- First monthAudit, query research, structure, first technical fixes. No visible traffic yet — this is the foundation, and it has to be paid for before any result appears.
- Months 2–3Rework of existing pages and new texts, internal links. First positions appear for long, rare queries: they land fastest because competition there is minimal.
- Months 4–6Noticeable growth in impressions, movement on mid-frequency queries. By this point it is clear whether the chosen direction works — and if it does not, the plan is corrected.
- Months 6–12The competitive queries everyone fights over. The accumulated effect starts delivering the bulk of the traffic.
Speed depends on four things: the age and history of the domain, competition in the niche, the state of the site at the start, and the volume of work you can afford each month. A new site in a competitive field is a year. A live site with traffic that simply nobody has attended to often shows first movement within three or four months.
What this costs at each stage and what exactly is being invoiced is covered in a separate article: how much SEO promotion costs.
SEO in 2026: what AI search changed
Over the past two years the results page has changed more than in the whole decade before it. Above the ordinary links sits a block with an answer assembled by artificial intelligence, and next to it a separate mode where Google replies in continuous text and lists its sources in small print on the side.
The first screen for an informational query: the AI answer fills it entirely.
For a site owner this means two things. First, part of the questions now get closed right in the results, with no click anywhere. Second, the first ordinary result has moved down — reaching it takes a scroll.
Hence the shift in priorities. Making the top ten used to be enough. Now it also matters to become the source the AI cites in its answer. What gets picked is not the longest text but the one that gives a short, direct answer at the top of the page and contains what the neighbours do not have: specific numbers, conditions, examples from practice, your own measurements. A retelling of someone else's material does not make it into the citations — there is nothing to tell it apart from the original.
What follows from this in practice:
- the answer to the page's main question goes in the first two or three sentences, not after three screens of preamble;
- a question-and-answer structure: clear headings, a complete thought under each;
- specifics instead of generalities — figures, timelines, conditions, names;
- things that can be verified: your own data, experience, links to primary sources.
The foundation, though, has not changed. The AI answer is assembled from the same index as the ordinary results: the page still has to be crawled and indexed first. The technical state of the site, its content and its reputation remain the same three pillars — the reward for them is simply distributed differently now.
How to check that SEO is working
This needs neither paid services nor a contractor's report. Google gives the site owner Search Console for free: connected once, it shows first-hand data — what the search engine actually displayed, for which queries and how many people came through.
Three numbers are worth watching, and in this order.
- ImpressionsHow many times your pages appeared in the results. The fastest signal: when the work is going right, impressions start growing within weeks — earlier than clicks and earlier than positions. If they are flat after two months, the question is about the direction chosen, not about timelines.
- ClicksHow many people came through to the site. A gap between growing impressions and flat clicks is normal in the first months: the page is showing, but still low down. When impressions grow for half a year and clicks do not, however, the issue is not optimization but how the result looks in the listing: the title and description are not catching anyone.
- Average positionWhere the site appeared on average across all queries together. The number alone says almost nothing — the direction of movement is what matters. And remember it is an average: when a site starts showing for a hundred new queries, the average position drops even though things have actually improved.
A schematic, not a measurement: the shape matters, not the exact figures. Impressions rise first, clicks follow with a lag — in the early months that is normal, not a malfunction.
What is not worth measuring. Positions you see in your own search: results depend on city, device and browsing history — you are not seeing what your customers see. The count of queries “in the top 10” with no link to demand: a hundred phrases nobody searches are not worth one that matters. And separately, raw traffic volume on its own: it also grows on people who were looking for something else and left from the first screen.
The most honest check is still a single one — whether enquiries from search have increased. The other numbers exist to explain why there are more or fewer of them and what to do next.
Can you do SEO yourself
Partly — yes, and it is worth starting there whether or not you plan to hire anyone later. Some things a site owner does faster than any contractor, simply because they know their own business.
- connect Search Console and submit the sitemap — half an hour of work, after which you see real data instead of guesses;
- rewrite page titles and descriptions so it is clear what you sell and how you differ;
- remove the empty pages that repeat one another;
- compress heavy images — often half of the speed problem sits right there;
- fill in the company card on Google Maps and collect reviews;
- write answers to the questions you are asked on the phone every day: those are ready-made page topics, and nobody will write them better than you.
Where the line is. On your own it is hard to research queries without missing half the demand or building two pages for the same one. It is hard to separate closely related pages so they stop competing with each other. Technical matters — URL structure, duplicates, markup, server responses — call less for knowledge than for experience, the kind where a mistake costs months. And links are a category of their own: here do-it-yourself work does harm more often than good.
A simple rule. If the niche is calm, the competitors are few and the site is small — do it yourself, it will pay off. If dozens of funded companies fight over your queries, catching up alone will not happen: what wins there is not diligence but the volume of systematic work. What that work costs on the market is covered in how much SEO promotion costs, and what a contractor's work includes is on our SEO agency page.