Truly headless CMS

Content without
the runtime

Define your schema in a YAML file. Deliver to any front-end. No .NET package required — ever.

Used by 200+ agencies. No credit card needed.

# headlo.schema.yml — v1.0

blueprints:

  - id: hero-banner
    type: component
    fields:
      - name: headline
        type: text
        required: true
      - name: subtext
        type: rich-text
      - name: background
        type: image
      - name: cta
        uses: cta-button

  - id: landing-page
    type: template
    slots:
      - name: above-fold
        accepts: [hero-banner]
      - name: body
        accepts: [rich-text, card-grid, testimonials]
        max: 10

{
  "blueprints": [
    {
      "id": "hero-banner",
      "type": "component",
      "fields": [
        {
          "name": "headline",
          "type": "text",
          "required": true
        },
        { "name": "subtext",    "type": "rich-text" },
        { "name": "background", "type": "image" },
        { "name": "cta",        "uses": "cta-button" }
      ]
    },
    {
      "id": "landing-page",
      "type": "template",
      "slots": [
        {
          "name": "above-fold",
          "accepts": ["hero-banner"]
        },
        {
          "name": "body",
          "accepts": ["rich-text", "card-grid", "testimonials"],
          "max": 10
        }
      ]
    }
  ]
}

Why Headlo

◈

Blueprint schema

Define components, templates, and slots in a single YAML file. Version-controlled, CI/CD friendly, human-readable.

⟁

Any front-end

Next.js, Astro, Vue, mobile — just a fetch call. No SDK, no vendor lock-in, no runtime dependency.

◎

Agency-first reseller

White-label ready. Spin up client instances, manage schemas per project, bill under your own brand.

Headlo vs legacy CMS

Optimizely / Episerver

Tightly coupled to .NET

✕ Schema defined in C# attributes

✕ Client must install a .NET package

✕ Content areas require Optimizely runtime

✕ No YAML / config-file schema

✕ Reselling is complex and expensive

Headlo

Runtime-free, truly headless

✓ Schema in headlo.schema.yml

✓ Zero client-side dependencies

✓ Slots and templates — no legacy baggage

✓ Git-friendly, CI/CD native

✓ White-label agency program built in