AI-powered evaluation using the Model Context Optimization BS Detection Framework, based solely on publicly available website content.
Based on 1843 businesses audited.
Expansion has 8.1 points less BS than the average for Marketing, SEO & Advertising Agencies.
Marketing, SEO & Advertising Agencies BS: Expansion (www.expansion.be)
Expansion is a rare example of an agency site where the substance of its history outshines its marketing fluff. It is a legitimate, established firm that ironically fails at its own ‘Digital’ medicine by neglecting basic structured data and external proof links.
Implement Organization and Person schema to link the agency and its founders to verifiable external profiles. Replace descriptive project summaries with metric-driven case studies showing specific ROI, ROAS, or conversion improvements. Consolidate the repetitive service category headings to improve the information-to-fluff ratio on sub-pages. Add outbound links to the ISO certification registries to validate high-level trust claims.
The site displays high substance in its historical data, citing specific revenue figures (4.8 million Euro CA in 2011) and staffing growth (7 to 35 collaborators). However, it loses density through repetitive navigation-style headings (H2 and H3 Strategy, Event & Media, Branding, Digital) that appear on almost every page. While service descriptions like Etudes de satisfaction contain specific methodologies (CAWI, CATI, CAPI), the homepage remains anchored in standard power words like ‘concrets’ and ‘pragmatiques’ without immediate qualification.
If your @id chain is broken, your entire knowledge graph collapses into isolated nodes. Check your AI visible entity graph with a free one page structured data interpretation.
Drift is nearly non-existent. The homepage H1 promises a ‘complete offer’ and the sub-pages deliver an exhaustive list of services ranging from high-level Strategy to granular Field Marketing. There is no disconnect between the ‘integrated marketing department’ positioning and the actual technical descriptions of services like HubSpot CRM integration or Radio spot production.
Identify the current state and friction diagnosis of your specific business model. Generate your Executive SEO Strategy to quantify the financial or conversion cost of strategic misalignment.
The trust_theatre_flag is false because the site does not use unverified third-party badges, but it lacks external proof paths. While it mentions being an ‘ISO 9001’ and ‘ISO 14001’ certified agency, there are no proof_links_count directing to the certifying bodies or external review platforms like Clutch. Named clients like Diamond Europe and Axial Belgium are present, but their ‘case studies’ are mostly brief project descriptions without linked external validation.
The proof density is higher than the industry average due to the granular 25-year timeline provided on the Presentation page. There are over 15 named clients across the sampled pages, though the ratio of ‘verifiable result’ to ‘vague assertion’ is weakened by the lack of specific campaign performance data (e.g., % increase in sales for Paulus or traffic for CIACO).
For a demonstration of entity driven retail architecture, open the Walmart Structured Data audit. View the Walmart Structured Data Audit to see how product, brand, and service entities are reconstructed for AI systems.
The site uses several industry cliches such as ‘orientée résultats’ and ‘développement de votre marque.’ The value proposition of being an ‘integrated marketing department’ is a common agency trope, but it is somewhat differentiated by its 25-year local history in Namur and Brussels. Template fingerprints are visible in sections like ‘Comment pouvons-nous répondre à vos ambitions ?’ which appears as a recurring boilerplate H2.
There is a significant technical authority gap: despite claiming ‘Digital’ expertise, the schema_json is null across all 6 pages. Furthermore, founders Arnaud Van Cutsem and Bertrand Van den Dooren are named in the text, but they lack Person schema or sameAs social links, leaving their digital footprint disconnected from the site’s authority structure.
The site makes bold claims about ‘creating value’ and ‘concrete results,’ but the project summaries (Projets) are descriptive rather than metric-heavy. While the agency provides its own revenue growth metrics, it fails to provide similar ‘before-and-after’ ROI or conversion percentages for the clients listed in the portfolio.
Marketing, SEO & Advertising Agencies BS: Expansion (www.expansion.be)
The site content perfectly aligns with the Marketing, SEO & Advertising category, offering a wide spectrum of services from strategic analysis and mystery shopping to digital execution and field marketing. The presence of specific sub-units like ExpansionTV for dynamic displays confirms a specialized agency structure.
If your structural signals drift, the model cannot form stable chunks or coherent embeddings. Study the Semantic HTML Framework Guide and see why semantic structure — not styling — controls AI comprehension.
“The score is driven primarily by Identity and Authority gaps (lack of schema) and moderate Trust and Proof issues (lack of external validation). It is saved from a higher BS score by its high Information Density regarding company history and revenue transparency.”
Analysis Disclosure & Source Attribution
Snapshot Date: May 19, 2026
Purpose: This data is presented under “Fair Use” / “Educational Exception” for the purpose of forensic semantic analysis, allowing users to see how machine logic interprets digital signals.
Machine Perception Notice: This evaluation is generated by machine-read logic (MRL). The AI interprets the “Digital Ghost” of a website (code, metadata, and semantic structures), which may differ from what a human sees at the same moment. This is an automated technical diagnostic and not a statement of fact or human opinion regarding the real-world integrity or legitimacy of the business. Any missing or inaccessible elements in the snapshot are treated as machine-read signals, reflecting AI rendering limitations rather than intentional omission.
Notice to the Evaluated Business: This analysis is part of a non-adversarial audit. The results are intended as professional feedback to help improve machine-readability and authority signals. Any company can use these insights for free. When content is updated, a fresh audit can be requested at any time to reflect the current state.
To All Users: You are encouraged to visit the live site at Expansion to view the most current version of their content and see directly what the company offers.