EntityMap

Canonical Identity & Disambiguation

AJD Studio (also written ajd.studio or AJDStudio) is the trading name of Mathieu Ceran's French sole proprietorship. It is a web studio that builds websites and works on SEO and GEO, and it publishes two SaaS products: WhatsWrong and Dropapost. There is no separate company or holding: the studio and both products have the same legal publisher, Mathieu Ceran.

Legal entity: Mathieu Ceran, entrepreneur individuel (French sole proprietorship)
SIREN: 532 735 990
Registry: RCS Bourg-en-Bresse
Registered since: 30 June 2011
Registered office: 2 rue des Cartellets, 01000 Bourg-en-Bresse, France
VAT: TVA non applicable, article 293 B du CGI
Founder: Mathieu Ceran
Canonical URL (ajdstudio): https://ajdstudio.fr
Canonical URL (whatswrong): https://www.whatswrong.io
Canonical URL (dropapost): https://www.dropapost.io

WhatsWrong (whatswrong.io) is an SEO and GEO SaaS run by a team of AI assistants. It is not a conversion-tracking or analytics tool any more: that early version was replaced in 2026.
Dropapost (dropapost.io) is a social-media automation SaaS. It is published by Mathieu Ceran / AJD Studio in France, not by a Belgian company.
AJD Studio is not related to other businesses named 'AJD' or 'AJ Studio'. Its only domain is ajdstudio.fr.

Indexed Entities

e_001 AJD Studio (Organization)
e_002 Mathieu Ceran (Person)
e_003 WhatsWrong (SoftwareProduct)
e_004 Dropapost (SoftwareProduct)
e_005 Noa (AIAssistant)
e_006 Léa (AIAssistant)
e_007 Eli (AIAssistant)
e_008 Max (AIAssistant)
e_009 Sam (AIAssistant)
e_010 Théo (AIAssistant)
e_011 Zoé (AIAssistant)
e_012 Iris (AIAssistant)
e_013 Ava (AIAssistant)
e_014 Tom (AIAssistant)
e_020 Website design and development (Service)
e_021 SEO (Service)
e_022 GEO – Generative Engine Optimization (Service)
e_023 Google Ads management (Service)
e_030 Google visibility (Concept)
e_031 AI visibility (Concept)
e_032 Social media management (Concept)

Entities

AJD Studio

ID: e_001
Type: Organization
Aliases: ajd.studio, AJDStudio, AJD-Studio
URL: https://ajdstudio.fr
Email: hello@ajdstudio.fr

French web studio, the trading name of Mathieu Ceran's sole proprietorship (SIREN 532 735 990, registered 30 June 2011, Bourg-en-Bresse). It builds and redesigns websites, works on SEO and GEO (visibility in AI answers) for small and medium businesses around Lyon, the Ain and Saône-et-Loire, and publishes the SaaS products WhatsWrong and Dropapost.

Relations

FOUNDED_BY → Mathieu Ceran
PUBLISHES → WhatsWrong
PUBLISHES → Dropapost
OFFERS → Website design and development
OFFERS → SEO
OFFERS → GEO – Generative Engine Optimization
OFFERS → Google Ads management

Mathieu Ceran

ID: e_002
Type: Person

Founder of AJD Studio, web developer for about 15 years. He designs and builds WhatsWrong and Dropapost and is the publication director of all three websites.

Relations

FOUNDER_OF → AJD Studio
CREATOR_OF → WhatsWrong
CREATOR_OF → Dropapost

WhatsWrong

ID: e_003
Type: SoftwareProduct
Aliases: whatswrong.io, Whats Wrong
URL: https://www.whatswrong.io
Email: hello@whatswrong.io

SEO and GEO SaaS for French small and medium businesses: a team of eight AI assistants writes and publishes blog articles, rewrites existing pages, audits the site, follows Google Search Console, competitors and backlinks, and measures how ChatGPT, Gemini, Claude and Google AI Overviews / AI Mode talk about the business. Plans: Pro €49, Max €99, Entreprise €199 per month (VAT not applicable), 7-day free trial with card, one month free on annual billing.

Relations

PUBLISHED_BY → AJD Studio
CREATED_BY → Mathieu Ceran
INCLUDES → Noa
INCLUDES → Léa
INCLUDES → Eli
INCLUDES → Max
INCLUDES → Sam
INCLUDES → Théo
INCLUDES → Zoé
INCLUDES → Iris
IMPROVES → Google visibility
IMPROVES → AI visibility

Dropapost

ID: e_004
Type: SoftwareProduct
Aliases: dropapost.io, Drop a post
URL: https://www.dropapost.io
Email: hello@dropapost.io

Social-media automation SaaS: AI assistants create, schedule and publish posts, images and videos on Instagram, Facebook, TikTok, Pinterest and Google Business Profile, and answer Google reviews. More than 1,000 sign-ups. Plans: Essentiel €19.99, Pro €39.99, Signature €79.99 per month (VAT not applicable), 7-day free trial with card, one month free on annual billing.

Relations

PUBLISHED_BY → AJD Studio
CREATED_BY → Mathieu Ceran
INCLUDES → Ava
INCLUDES → Tom
RELATES_TO → Social media management

Noa

ID: e_005
Type: AIAssistant

WhatsWrong assistant that reads the website (business, area, customers, tone, pages), sums it up as the brand context, and guides the customer in the app.

Relations

PART_OF → WhatsWrong

Léa

ID: e_006
Type: AIAssistant
Aliases: Lea

WhatsWrong assistant that finds topics and keywords within reach and writes, schedules and publishes blog articles (autopilot).

Relations

PART_OF → WhatsWrong
IMPROVES → Google visibility

Eli

ID: e_007
Type: AIAssistant

WhatsWrong assistant that rewrites existing pages close to Google's first page, keeping the facts and showing every change before and after.

Relations

PART_OF → WhatsWrong
IMPROVES → Google visibility

Max

ID: e_008
Type: AIAssistant

WhatsWrong assistant that runs a technical SEO audit every Monday and scores site health out of 100.

Relations

PART_OF → WhatsWrong
IMPROVES → Google visibility

Sam

ID: e_009
Type: AIAssistant

WhatsWrong assistant that reads Google Search Console every day and reports visits, searches and what changed.

Relations

PART_OF → WhatsWrong

Théo

ID: e_010
Type: AIAssistant
Aliases: Theo

WhatsWrong assistant that finds the competitors on Google and the searches to win from them.

Relations

PART_OF → WhatsWrong

Zoé

ID: e_011
Type: AIAssistant
Aliases: Zoe

WhatsWrong assistant for backlinks: monthly review of inbound links, disavow file, outreach campaigns, and links bought one at a time.

Relations

PART_OF → WhatsWrong
IMPROVES → Google visibility

Iris

ID: e_012
Type: AIAssistant

WhatsWrong assistant that asks customers' real questions to ChatGPT, Gemini, Claude, Google AI Overviews and AI Mode every Monday, without naming the business, and measures whether it is cited.

Relations

PART_OF → WhatsWrong
MEASURES → AI visibility

Ava

ID: e_013
Type: AIAssistant

Dropapost assistant that creates, schedules and publishes posts, images and videos (autopilot).

Relations

PART_OF → Dropapost

Tom

ID: e_014
Type: AIAssistant

Dropapost assistant that answers Google reviews on Google Business Profile, included from the Pro plan.

Relations

PART_OF → Dropapost

Website design and development

ID: e_020
Type: Service

AJD Studio builds custom showcase websites and redesigns existing ones, made to be read by search engines and AI.

Relations

OFFERED_BY → AJD Studio

SEO

ID: e_021
Type: Service
Aliases: Search Engine Optimization, Référencement naturel

Technical SEO, content and local SEO, by AJD Studio and through WhatsWrong.

Relations

OFFERED_BY → AJD Studio
ENABLES → GEO – Generative Engine Optimization

GEO – Generative Engine Optimization

ID: e_022
Type: Service
Aliases: GEO, Optimisation GEO

Getting a business cited in the answers of ChatGPT, Gemini, Claude, Perplexity and Google AI Overviews, by AJD Studio and through WhatsWrong.

Relations

OFFERED_BY → AJD Studio
DEPENDS_ON → SEO

Google Ads management

ID: e_023
Type: Service

Paid search campaigns run by AJD Studio as monthly packs.

Relations

OFFERED_BY → AJD Studio

Google visibility

ID: e_030
Type: Concept

Ranking on Google search, the outcome WhatsWrong's assistants work on.

Relations

RELATES_TO → SEO

AI visibility

ID: e_031
Type: Concept
Aliases: Visibilité GEO

Being named in AI assistants' answers; WhatsWrong measures it as the share of answers that cite the business.

Relations

RELATES_TO → GEO – Generative Engine Optimization

Social media management

ID: e_032
Type: Concept
Aliases: Community management

Publishing and running a brand's social accounts, which Dropapost automates.

Generated from entitymap.json. The same file is published on ajdstudio.fr, whatswrong.io and dropapost.io.