When the user wants to decide domain structure for multiple products or brands—subfolder vs subdomain vs independent domain. Also use when the user mentions "subfolder vs subdomain," "subdirectory vs subdomain," "multiple products domain," "multiple websites," "brand architecture," "branded house," "house of brands," "where to host product," "domain structure," or "hub-spoke domain." For brand SERP, use multi-domain-brand-seo.
Guides domain structure decisions for multiple products or brands: subfolder (subdirectory), subdomain, or independent domain. Covers brand architecture (Branded House vs House of Brands) and Hub-Spoke principles when multiple domains coexist. See domain-selection for initial domain choice (Brand/PMD/EMD, TLD); website-structure for single-domain page planning; rebranding-strategy for domain change and migration; multi-domain-brand-seo for brand search optimization.
When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for product portfolio and growth goals.
Identify:
| Structure | Example | SEO Authority | Brand Independence | Typical Use | |-----------|---------|---------------|-------------------|-------------| | Subfolder | company.com/product-a | Shared with main domain | Low | Products under one brand; SMB; content consolidation | | Subdomain | product.company.com | Treated separately by Google | Medium | Separate product experience; tech isolation; support/docs | | Independent domain | product.ai | None shared | High | Acquired brands; different markets; distinct brand identity |
| Choose | When | |--------|------| | Subfolder | Products share value proposition; want to strengthen main domain; SMB; blog, tools, features under one brand | | Subdomain | Need separate tech stack (e.g., app vs marketing); support portal; docs; distinct UX but same brand | | Independent domain | House of Brands; acquired company; different audience; different TLD (e.g., .ai for AI product) |
SEO consensus: Subfolders typically outperform subdomains for most cases—authority flows to the main domain. Subdomains require separate SEO effort.
| Model | Description | Domain Tendency | Examples | |-------|-------------|-----------------|----------| | Branded House | One master brand; products use functional descriptors | Subfolder or subdomain | Google (google.com/search, google.com/maps), FedEx | | House of Brands | Each brand independent; parent hidden | Independent domains | Unilever (dove.com, axe.com) | | Sub-brands / Endorsed | Sub-brands with parent endorsement | Subdomain or independent | FedEx Express, Marriott Bonvoy |
Decision factors: Business strategy, market positioning, product overlap, resource availability.
When company main site (company.com) and product site (product.ai) both exist:
| Role | Domain | Focus | |------|--------|-------| | Hub | company.com | Brand, About, Research, product matrix; brand queries | | Spoke | product.ai | Product features, pricing, signup; product queries |
Principles:
Copy a source-pinned command for your client. You run it yourself.
Destination: .claude/skills/domain-architecture · pinned to the source commit
git clone https://github.com/kostja94/marketing-skills.git
cd marketing-skills
git checkout 70987bad4ebe9dce1f74858c1c64f3f8810f18e4
mkdir -p ".claude/skills/domain-architecture"
cp -r "skills/strategies/commercial/domain/domain-architecture" ".claude/skills/domain-architecture"Review the source before running. This copies files into your project; it is not a one-click install and does not verify runtime safety.
Scanner static-checks@0.1.0 · commit 70987bad4ebe. Static checks cannot prove runtime safety – review the source and the exact diff before installing. How checks work.
No static rules matched. This is not a safety guarantee.