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Slimmer dan Gisteren

SEO marketing agency

SEO marketing agency for better visibility

Looking for an SEO marketing agency? Slimmer dan Gisteren helps businesses grow through technical SEO, strong content and a results-focused strategy. You work directly with Jimmy Buitenhuis, from an initial SEO check to the agreed improvements. Based in Diemen, we work with businesses across the Netherlands, online or at your location.

Directly with JimmyNo-obligation introductionThe whole of the Netherlands

Would you rather call? 06 10175027 · Mon–Thu 9am–6pm, Fri 9am–4pm

Technical SEOSearch intentCompetitionConversion

Services and delivery

What does our SEO marketing agency do for your website?

SEO stands for search engine optimization. With SEO marketing you improve the unpaid visibility of your website, so that potential customers find you when they search for your services. To achieve this, we connect four components: technology, relevant content, authority and conversion.

From research to implementation: these are the components from which we compose your SEO process. We agree in advance which activities suit your website. So you don't have to take every part at the same time.

Technical SEO

We check indexing, speed, crawlability, mobile usability, redirects, canonical URLs and technical issues that may limit growth.

What you receive

A prioritized list of affected URLs, the necessary corrections and verification after the agreed implementation.

View the technical control sequence

Keyword research

We identify how your customers search and distinguish between seeking information, comparing providers and making contact. Your target audience may be local or national.

What you receive

A keyword plan per page: main subject, search intent and the existing or new page that matches it.

This is how we link search queries to pages

Competitive analysis

We compare the offers, explanations, internal links and visible evidence of pages found on your relevant searches.

What you receive

An overview of substantive gaps and opportunities for your own pages, with priority and substantiation.

SEO content

We improve existing pages and create new landing pages where necessary. Your professional knowledge forms the basis for explanations that help customers choose.

What you receive

Agreed page improvements: title, headings, content, internal links and an appropriate route to contact.

Website structure & internal links

We connect services and supporting explanations so that visitors and Google can track the coherence between your pages.

What you receive

An overview of pages and link connections, followed by the agreed adjustments to navigation and contextual links.

Authority & Relevant Citations

We support your expertise with specialist content, verifiable business information, genuine reviews and available customer cases. We research relevant external mentions; publication on another website depends on that publisher.

What you receive

A substantiated opportunity list for evidence and mentions. We will agree on publications, possible costs and implementation separately; we don't promise a fixed number of backlinks.

Turning visits into enquiries

We improve your offer, contact buttons and forms. Where conversion tracking is in place, we compare organic clicks, enquiries and lead quality to identify where visitors drop off.

What you receive

Agreed improvements to your offer and contact journey, with enquiry measurement where conversion tracking is available.

We use Google SEO Guidelines as our technical foundation. Content must answer a customer question and add original expertise. For external mentions, we follow Google's link policy: paid advertising is marked as such; we don't buy links to manipulate rankings.

Are you unsure where to start? The free SEO scan provides an initial diagnosis. See also which determines the costs.

Is this right for you?

Who is our SEO agency for?

A good fit
  • Service businesses and independent professionals seeking more relevant enquiries from Google.
  • Small and medium-sized businesses and B2B specialists with services customers search for.
  • Online shops looking to improve category pages, product pages and technical visibility.
  • Businesses serving local, regional or national customers that can dedicate time to implementation.
Less suitable
  • You expect guaranteed positions in Google.
  • You are looking for results without changing anything about the website or content.
  • You just want a one-time trick instead of continuous improvement.

Collaborate

SEO for companies throughout the Netherlands, based in Diemen

At Slimmer dan Gisteren you work directly with Jimmy Buitenhuis on strategy and implementation. We are located in Diemen, near Amsterdam, and help companies throughout the Netherlands. We work online or visit you by appointment. Your target group determines the SEO approach: local, regional or national.

This is how we tailor SEO to your work area

A search strategy that suits your work area

A service provider that visits customers in Amsterdam needs a different search strategy than an online store that delivers nationally. We investigate searches with and without a place name and link them to your offer. Only services and areas where you are actually active are included in the plan.

Local competition and substantive differences

We compare the pages found for your relevant search terms: what services do they describe, what questions do they answer and what evidence do they show? Based on this, we improve your existing pages with concrete explanations about your working methods, services and accessibility.

Your website and Google Business Profile

For eligible companies, a correct Google Business Profile is part of the local approach. Company name, category, services and contact details must match reality and your website. We measure the organic search results and the map results separately; Mentioning a work area does not guarantee a position in Google Maps.

From visibility to relevant requests

We start with a baseline measurement of your most important pages and search queries. Search Console shows organic impressions, clicks, and average positions. For a specific position in Amsterdam, a measurement with a fixed search location and device is also required. Where conversion measurement is available, we also look at which requests come from organic traffic.

Outsource SEO

What do you receive, and who does the work?

Jimmy Buitenhuis, your contact at SEO marketing agency Slimmer dan Gisteren

Jimmy Buitenhuis

At Slimmer dan Gisteren I am your point of contact for SEO strategy and implementation. Together we determine which customers you want to reach, what your website needs for this and which improvements come first.

You're speaking directly to me. From Diemen I work with companies throughout the Netherlands, online or by appointment at your location.

Ask Jimmy your question

A plan that you can assess

Before implementation, we agree on which pages and search queries will receive priority, which technical improvements are needed and who will pick up what. The size and costs depend on your website, competition and available capacity.

Insight into activities and effect

We record what has been adjusted. We establish a baseline measurement in advance. In Search Console, we compare the same pages and queries over similar time periods, with brand name queries separately. Where requests are measured, we also include lead quality. The report contains the actions taken, development and next priorities. We agree on frequency and measurement setup in advance; an average position is not a fixed Google ranking.

From diagnosis to verifiable implementation

On our own website, we investigated a broken enquiry route and made the contact step explicit. We also reduced the search animation’s file size. In the technical walkthrough we explain what changed and what that does and does not demonstrate. This is work on our own website, not a client SEO result.

Download an example of an SEO improvement plan (CSV). Open it in Excel or Google Sheets; the example rows are fictitious and can be replaced by your own findings.

How we handle Google updates

When there is a change in search traffic, we compare the timing with the Google's official update history. Coincident dates do not prove that an update is the cause. Changes to your website, search query and competition can also play a role.

For a core update, we follow Google's analytics advice: first allow the rollout to be completed, then wait at least a full week and compare with a period before the update. We review affected pages and search queries before taking action. We will resolve technical errors immediately.

Timeframe

How we work: from SEO check to implementation

We begin by clarifying the priorities. We then build a foundation step by step that can improve each month.

Diagnosis

Diagnosis

We discuss your services, target group and desired requests. We then look at technology, indexing, existing content and the websites that are found based on your relevant search terms.

Plan

Priority plan

You will receive a priority plan with search terms per page, technical improvements and content opportunities. We agree on which actions we will carry out, what you will pick up yourself and how we will assess progress.

Execution

Execution

We improve technology, pages, internal links, local SEO and content without unnecessary noise or separate SEO tasks.

Improvement

Measure and improve

With Google Search Console we track impressions, clicks and searches per page. Where conversion measurement is set up, we also include requests and lead quality. You can see which improvements have been made and which next steps are logical.

Explore your approach

Which SEO approach fits your business?

Costs and agreements

What determines the cost of outsourcing SEO?

Improving a small number of service pages requires different work than an online store with hundreds of categories. That is why we determine the size based on your website, target group, competition and available time. The free scan helps to discuss those first choices.

Technical initial situation

Can Google reach the important pages? Are there any issues with indexing, mobile usability, or speed? Restoring first can have more value than immediately publishing new texts.

Content and implementation

Which existing pages need improvement, which customer questions are missing and who provides the subject content? Agree whether research, text work, technical implementation and control are included in the proposal.

One-off or continuous

A technical correction may be defined. Content development and assessing search results usually require follow-up work. Compare proposals for specific activities, frequency, duration and cancellation agreements.

How to compare proposals

Ask what you receive, who implements it, what access is needed and how progress is reported. Also check any additional costs for tools, development or external publications. A monthly amount alone says little about the content of the work.

Do you want to know what is suitable for your website? Request the free SEO review or book an introductory call with Jimmy.

SEO strategy

When do you need an SEO marketing agency?

SEO becomes interesting when you know that customers are searching, but your website is not yet structured logically enough to win that search query. Then it's all about diagnosis: where is visibility, trust or conversion leaking?

See the situations where SEO can help

You will not be found for keywords with purchase intent

We investigate which searches are commercially important, which pages are required and why competitors are now above you.

Your website has content, but lacks structure

Many websites have separate texts. SEO requires clear service pages, internal links, FAQs, local signals and content clusters that Google and visitors understand.

You want to know what has priority

The biggest gain is often not in more work, but in the right order: first technology and indexing, then pages with search intent, then authority and continuous improvement.

You want more requests, not just more traffic

That's why we also look at offers, proof, CTAs and forms. SEO traffic should land on pages that feel logical and invite contact.

Quick check

Do you want to know which SEO opportunities your website is missing?

Request contact about your SEO scan. After receipt, we will discuss your website, goals and initial issues to review.

Request an SEO review

Why this works

Why choose Slimmer dan Gisteren as your SEO marketing agency?

Clear results: easier to find for search queries that customers may generateMore certainty: technology, competition and search intent are first examinedPersonal contact: we discuss your goals and initial SEO prioritiesLess friction: you don't get a long checklist, but an actionable sequenceStronger pages: content, evidence and CTAs are viewed togetherNo fake guarantees: just honest advice about opportunities, effort and order

Free review

Free SEO check: discover your first improvement opportunities

An SEO check or scan helps identify where your website needs attention. Enter your name, email address and website, then send the prepared request email. Jimmy will contact you to discuss your goals and initial points to review. This is a personal, no-obligation initial assessment, not an automated website checker or a full SEO audit. Any implementation is agreed separately.

  • Discuss your website and goals
  • First technical issues to review
  • Important queries and pages
  • Determine the next step together
Directly with JimmyNo-obligation introductionThe whole of the Netherlands

Enter your details to prepare a request email. You then send it from your own email app. Prefer direct contact? Email Jimmy.

* Required. We use your details to respond to your request. Privacy policy.

Prefer to book an introductory call directly?

What happens next?

  1. You send your request email or book a meeting.
  2. We discuss your website, target group and what you want to achieve with SEO.
  3. If follow-up work is appropriate, you will first receive a proposal with the work and costs.

Would you rather call? 06 10175027 (Mon–Thu 9am–6pm, Fri 9am–4pm).

Your questions

Before you outsource SEO

Do you only work for companies around Amsterdam?

No. We are located in Diemen, near Amsterdam, but work for companies throughout the Netherlands. You work directly with Jimmy Buitenhuis, online or by appointment at your location. Whether you want to reach customers locally, regionally or nationally, determines the keyword research and approach.

Can you guarantee a top 3 position in Google?

No. Google determines the search results and the order may vary by search location, device and time. We can improve the relevance, technology, content and internal structure of your website. For local map results, distance and the reputation of your company also play a role. That is why we agree on concrete activities and measure development, without promising a permanent position.

What do I get if I outsource SEO to Slimmer dan Gisteren?

We start with an analysis of your website, target group and search query. This results in a plan with priorities for technology, existing pages, content and internal links. Before implementation, we agree on the work and division of tasks. We then track visibility, organic clicks and, where measurable, requests. The free SEO scan is a first introduction; We determine the scope and costs of a follow-up process based on what your website needs.

How much does an SEO marketing agency cost?

The costs depend on your market, competition, website size, technical condition and how much content or optimization is needed. A local service provider often needs a different process than a national player or webshop. That is why we prefer to start with a scan: first determine what is needed, then advise on the correct scope of the process.

What do you review in an SEO check?

We review the publicly accessible website for technical accessibility, titles and headings, content, internal links, mobile usability and the path to contact. Together we determine which pages and search queries matter. Access to your Google Search Console is needed for clicks, impressions and indexing data. The free check is an initial assessment; a full audit and fixing identified issues are agreed as separate follow-up work.

How quickly do you see SEO results?

SEO takes time, but not all progress takes the same amount of time. Technical improvements and indexation problems can sometimes become visible relatively quickly. Rankings, organic traffic and inquiries usually build gradually, especially in competitive markets. That's why we look at intermediate steps: technical health, indexing, better pages, growing visibility and ultimately requests.

How do you measure SEO results?

We look at multiple signals: rankings, organic traffic, impressions, clicks, indexing, top pages, conversions, requests, and lead quality. Rankings are useful, but not the whole story. An increase on a keyword without commercial value is less interesting than a smaller increase that yields better requests.

What do you need from me?

To get off to a good start, we need your website, key services, target group, region or market, any previous SEO data and access to relevant tools such as Google Search Console, Google Analytics or your CMS. In addition, it helps if you can clearly indicate which requests are valuable and which customers you prefer to attract.

Can I first request just the free SEO scan?

Yes. Complete the application form and send the prepared email. After receipt, we will contact you to discuss your website and goals. The scan is without obligation; we will discuss a paid sequel separately. The form does not provide an automatic analysis and we will agree the next step with you personally.

More explanation about SEO

Would you like to delve deeper? Open the topic below that matches your question.

Understanding SEO
What is SEO marketing?

SEO marketing is improving your website to reach relevant visitors from the unpaid search results. SEO stands for search engine optimization. You work on technology, content, website structure and authority. You do not pay per organic click, but you do invest in research, implementation and maintenance. The goal is visibility for search queries that match your offering and can lead to customers.

What does an SEO marketing agency do?

An SEO marketing agency helps your website become easier to find for searches that are relevant to your company. This goes further than just adding keywords. We look at technical SEO, website structure, content, authority, local visibility and conversion. The goal is for the right people to find you, understand why you are relevant and contact you more easily.

Why choose a compact SEO approach?

Many SEO processes are made unnecessarily large, resulting in mainly reports, lists and individual tasks. A compact SEO approach starts with the question of what is the biggest bottleneck: technology, content, authority, search intent or conversion. This creates a clear order and you know which improvements deserve attention first.

What is the difference between an SEO agency and an SEO marketing agency?

SEO agency and SEO marketing agency usually describe the same type of service. The name does not tell you which tasks are included. Compare the approach, expertise, agreed implementation and reporting instead. With us, you discuss directly with Jimmy how technical improvements, content and internal links can support relevant traffic and enquiries.

What is technical SEO?

Technical SEO is about whether Google can crawl, understand and index your website properly. Think of speed, mobile usability, redirects, error pages, canonicals, sitemap, structured data, indexability and duplicate content. If the technical basis is not correct, good content can still perform less well.

Why is keyword research important?

Keyword research shows how potential customers search, which terms have commercial value and what information they expect. Without proper keyword research, you'll quickly create pages for terms with little intent or miss out on searches where people are ready to reach out. The research therefore partly determines your page structure and content planning.

What is search intent?

Search intent is the reason behind a search query. Someone who searches for 'what is SEO' probably wants an explanation, while someone who searches for 'SEO marketing agency' is more likely to be looking for a party to talk to. A good SEO page matches that intention with the right content, depth, examples, CTAs and next steps.

What is an SEO landing page?

An SEO landing page is a page that focuses on a specific search query, service, region or target group. Such a page must be relevant to Google in terms of content, but also clear enough for visitors. The page must provide answers, build trust and logically guide people to a request, phone call or introduction.

What is local SEO?

Local SEO helps companies become more discoverable in a specific region. This can be done through local keywords, Google Business Profile, location pages, reviews, consistent business data and local listings. Local SEO can be very valuable for service providers, because searchers often want to speak to a party in the neighborhood or region.

Why does SEO often take longer than Google Ads?

Google Ads buys instant visibility as long as you pay. SEO builds organic visibility by improving technology, content, authority and relevance. Google needs to re-crawl your website, understand it and compare it to competitors. This makes SEO less direct, but it can become more sustainable in the long term because you do not pay per click.

What is topical authority?

Topical authority means that your website has strong content around a specific subject. For example, instead of one separate page about SEO, you also create supporting pages about technical SEO, local SEO, SEO content, keyword research and frequently asked questions. This way, Google better understands where your expertise lies.

What is structured data and is it necessary?

Structured data is extra code that helps search engines understand what is on a page, for example an organization, service, FAQ, review or product. It is not a magical ranking factor, but it can contribute to clarity, better interpretation and sometimes richer search results.

What is the difference between SEO and SEA?

SEO is about organic visibility in Google. SEA, like Google Ads, is about paid advertisements. SEO builds sustainable visibility; SEA gives faster traffic as long as budget is available. The best strategy often uses both: Ads for speed and data, SEO for structural visibility.

What is the difference between SEO and GEO?

SEO focuses on visibility in search results such as Google. GEO focuses on visibility into AI responses from systems such as ChatGPT, Gemini, Perplexity and Google AI Overviews. The basics overlap: clear content, authority, structure, expertise and reliable sources.

Technology, content and channels
Do I need new SEO content?

Not always. Sometimes it is smarter to improve existing pages before creating new content. We first look at which pages already have value, what search intent they serve and where content is missing. New SEO content is especially useful when important services, regions, customer questions or comparisons do not yet have a strong page.

Is link building still important for SEO?

Authority remains important, but link building must be done carefully. A few relevant mentions or quality backlinks are more valuable than many random links. We distinguish internal links from external mentions. For external authority, we look for relevant trade publications and collaborations that also have value for readers. We don't buy links to manipulate rankings or use automated link packages. Paid advertising or sponsorship requires an appropriate link marking, such as sponsored or nofollow.

Can you do SEO for WordPress websites?

Yes. WordPress can often be easily optimized, provided the theme, plugins, hosting and structure are properly set up. We look at speed, indexing, headings, metadata, internal links, schema markup, plugin settings and content structure, among other things. The same applies to WordPress: fewer plugins and more structure is often better.

What happens during a website migration?

SEO is extra vulnerable during a migration. URLs, redirects, metadata, internal links, content and indexability must be properly controlled. Without a migration plan you can lose positions and traffic. That is why we make a redirect and control plan in advance and check after go-live whether Google is handling the new situation well.

Do blogs still help for SEO?

Blogs can help, but only if they correspond to real search questions and have a role within your website structure. Individual blogs without internal links or commercial connections often yield little. Strong blogs answer questions, build expertise and refer logically to relevant service or landing pages.

Can you combine SEO with Google Ads or GEO?

Yes. Google Ads can help you learn more quickly which keywords convert. You can use those insights for SEO priorities. GEO is based on the same basis: clear content, expertise, structure, authority and reliable information that AI systems can also understand better.

Does AI impact SEO?

Yes. AI changes how people search and how information is summarized. However, a strong SEO foundation remains important: clear pages, reliable information, authority and technical structure help both search engines and AI systems to better understand your business. SEO and GEO are therefore growing closer together.

Collaboration and follow-up
How do you choose a good SEO marketing agency?

A good SEO marketing agency not only talks about rankings, but also about search intent, competition, technology, content quality and requests. You need to be able to understand why certain pages are prioritized, which keywords have commercial value and how success is measured. Transparency, realistic expectations and clear explanations are more important than big promises.

When is outsourcing SEO interesting?

Outsourcing SEO is interesting if you want to structurally get more requests from Google, but have insufficient time, knowledge or focus internally to do this properly. In particular, technical SEO, keyword research, content strategy, competitor analysis and monthly optimization require experience. Outsourcing works best when you can provide input about your offering, target group and customers.

Can I do my own SEO check for Google?

Yes. Google Search Console shows which queries your website appears for and whether pages are indexed. PageSpeed Insights helps investigate speed and user experience. Also check whether your main page clearly explains your offer and is accessible through internal links. A good technical score does not guarantee high rankings. Our SEO check connects these signals with your audience and offer; it is not an official Google assessment.

Can you improve existing SEO?

Yes. Often the most profit lies in existing pages. We can refine titles, headings, internal links, search intent, content depth, CTAs, evidence, structured data and technical components. As a result, a lot of new content is not always required; Sometimes the existing content needs to be sharper, clearer and better structured.

Do I receive reports?

Yes, but reporting must remain understandable. You don't want to be drowning in graphs. A good SEO report shows what has been done, why it was a priority, what development is visible and what action is logical next. So we don't just explain numbers, we translate them into choices.

Does my website need to be adjusted for SEO?

Often yes. SEO is not just writing text. Sometimes technical improvements, better navigation, faster pages, new service pages, internal links, structured data or clearer CTAs are needed. We try to prioritize adjustments logically, so that you don't have to change everything at once.

Is SEO suitable for B2B companies?

Yes, especially when potential customers orient, compare or search for specialist knowledge online. In B2B, the emphasis is often on trust, expertise, clear service pages, cases, substantive explanations and search questions that arise early in the customer journey. SEO then helps to come into the picture earlier.

Does SEO also work for web shops?

Yes, but e-commerce SEO requires its own approach. Then we look at category pages, product pages, filters, internal links, duplicate content, structured data, product information, loading speed and commercial keywords. For web shops, the balance between technology, range and content is extra important.

Does my website need to be adjusted after every Google update?

No. We first check whether there is a permanent change on important pages and search queries. In the case of a core update, we wait until at least a full week after the rollout to conduct the effect analysis. In the event of a spam update, we test the method against Google's spam policy. A drop at the same time is not in itself evidence of a violation. We improve what really helps visitors; additional keyword repetition or almost identical place name pages are not a solution.

How often should SEO be updated?

SEO is not a one-time task. Search behavior, competition, Google updates and your own offering change. That is why periodic optimization is important. That doesn't always have to be big; sometimes it concerns small technical fixes, new internal links, tightening up pages or adding content where search demand arises.