SEO Services: What Types Exist and Which One Do You Need?
Technical audit, on-page, link building, local SEO, multilingual: a complete overview of SEO service types, how they fit together, and what to prioritize.
"Doing SEO" actually covers several distinct disciplines, combined based on each site's needs. Understanding these different services helps you know exactly what to prioritize, and what a complete SEO engagement should look like, rather than being swayed by a standardized offering that doesn't match your situation.
The technical SEO audit
The starting point of any serious strategy: an analysis of the site's technical health (indexation, speed, Core Web Vitals, structure). Without this foundation, every other service loses much of its effectiveness, there's no point investing in content or link building if your site isn't even properly indexed. See our technical SEO audit and our detailed article on how to get indexed on Google.
On-page optimization and content
This service covers structuring pages (titles, tags, internal links) and creating or rewriting content aligned with real search intent. It's often the service with the most visible impact on organic traffic, since it directly touches what visitors read and what Google evaluates first. See our on-page optimization service.
Link building
The gradual construction of domain authority through qualified inbound links. This is foundational work whose effects build over several months, but it remains one of the most powerful levers in competitive markets, especially when several competitors already have solid content and technicals. See our link building service.
Local SEO
Specific to businesses with a geographic service area: Google Business Profile optimization, review management, local citation consistency. It's often the service with the best return on investment for SMEs and local shops, since it captures demand that's already qualified and ready to act. See our local SEO service.
Multilingual SEO strategy
Essential in Belgium: an independent keyword and content strategy per language (EN/FR/NL), with flawless technical structure (hreflang, localized URLs). Many Belgian businesses leave a significant share of their potential market on the table by neglecting this service. See our multilingual SEO service.
Often less visible, but equally important services
Beyond the five main pillars, a complete SEO engagement typically includes:
- Rank tracking, concretely measuring how your rankings evolve on priority keywords, not just overall traffic
- Reporting, translating technical data into indicators a business owner can actually understand
- Competitive monitoring, understanding what your competitors are doing to adjust your strategy accordingly
Signs a service is missing from your current strategy
If you're already working with a provider or an in-house team, certain symptoms often point to a specific service being under-invested: stable traffic but disappointing conversions points to on-page optimization; rankings that consistently plateau on page two despite good content points to link building; a near-total absence of calls or visits from local searches points to local SEO; and a marked traffic imbalance between your language versions points to a need for a stronger multilingual strategy.
What influences the price of SEO services
The cost of an SEO service varies significantly based on several objective factors: site size (a 500-page site requires more work than a 10-page brochure site), the level of competition in the target market, the number of languages to cover, and the starting condition (a site riddled with technical issues requires more initial work than one that's already well-structured). This is precisely why a serious quote always follows an audit, rather than offering a generic rate disconnected from your actual situation.
In-house SEO or an agency?
Hiring an in-house SEO resource offers direct control and deep company knowledge, but represents a significant fixed investment and requires covering every skill set alone (technical, content, link building). Working with an agency gives you access to a multidisciplinary team with proven expertise across multiple industries, at a generally more flexible cost matched to your project's size. Many businesses opt for a hybrid model: an in-house person who coordinates the project and produces some of the content, supported by an agency for technical work and link building.
How to determine what you need
| Your situation | Priority service |
|---|---|
| Declining or flat organic traffic with no clear explanation | Technical SEO audit |
| Good traffic but few conversions | On-page optimization and content |
| Solid technicals and content but stalled rankings | Link building |
| A business or service with a geographic customer base | Local SEO |
| Targeting multiple Belgian language communities | Multilingual SEO |
In practice, the most effective campaigns combine several of these services at once, which is why we always start with a free audit before proposing a combination matched to your actual situation rather than a standardized package.
How priorities vary by industry
The relative weight of each service depends heavily on your industry. An e-commerce business with thousands of product pages gets a disproportionate benefit from a thorough technical audit (handling thin-content pages, structuring categories), while a professional services firm (lawyers, consultants, accountants) often sees more impact from a combination of expert content and local SEO. A B2B player with a long sales cycle will lean more heavily on in-depth informational content and industry link building, designed to guide a prospect through months of research before first contact.
How often each service runs
Not every service follows the same rhythm. The technical audit is typically a one-off with quarterly follow-up, content optimization follows a regular editorial calendar (often weekly or biweekly), while link building and local SEO require continuous, cumulative work throughout the campaign. Understanding this rhythm helps you read monthly reporting more accurately: the absence of new content in a given month isn't necessarily a sign of inactivity if that month was spent on a technical phase or behind-the-scenes link building.
What good SEO support looks like
- A free initial audit, before any financial commitment is requested
- A priced, transparent quote, with no hidden fees
- Understandable monthly reporting, free of jargon
- Practices compliant with Google's guidelines, with no risky shortcuts
- The ability to adjust strategy based on monthly results, rather than a fixed plan for the entire campaign duration