# Parameters

Reference for params.toml values in Thulite SEO, covering site metadata, social accounts, description rules, favicons, and schema settings.

This reference guide describes the main site parameters and SEO module parameters, which can be set in `config/_default/params.toml`.

## Example

```toml {title="config/_default/params.toml"}
# Hugo
title = "Thulite"
subTitle = "SEO"
description = "Everything you need to make your Thulite website more visible in search results. Solid setup and easy to use."
images = ["cover.png"]

[social]
  twitter = "getdoks"
  facebook_admin = ""

# SEO (@thulite/seo)
[seo]
  [seo.title]
    separator = "—"
    suffix = ""
  [seo.description]
    summaryFallback = "" # "" (default)
  [seo.description.length]
    errorlevel = "warning" # warning (default), error, or ignore
    min = 110
    max = 160
  [seo.favicons]
    icon = "favicon.png" # favicon.png (default)
    svgIcon = "favicon.svg" # favicon.svg (default)
  [seo.schemas]
    type = "Organization" # Organization (default) or Person
    logo = "favicon-512x512.png" # Logo of Organization — favicon-512x512.png (default)
    name = "Thulite" # Name of Organization or Person
    sameAs = [] # E.g. ["https://github.com/thuliteio/thulite", "https://fosstodon.org/@thulite"]
    images = ["cover.png"] # ["cover.png"] (default)
    article = [] # Article sections
    newsArticle = [] # NewsArticle sections
    blogPosting = [] # BlogPosting sections
    product = [] # Product sections
```

## title

The website title used across the site output. A string — for example `"Thulite"`.

## subtitle

The website subtitle used in theme/UI contexts. A string — for example `"SEO"`.

## description

The default website description used for metadata and previews. A string — for example `"Everything you need to make your Thulite website more visible in search results."`.

## images

Default site images used for social cards and metadata fallbacks. An array of strings — for example `["cover.png"]`.

## social

Social account settings used by templates and metadata.

### twitter

The Twitter/X account handle (without `@`) used for social metadata. A string — for example `"getdoks"`.

### facebook_admin

The Facebook admin ID used for Facebook metadata. A string — default is `""`.

## seo.title

Title generation settings for SEO metadata.

### separator

The separator between page title parts. A string — default is `"—"`.

### suffix

An optional suffix appended to generated titles. A string — default is `""` (no suffix).

## seo.description

Description generation settings for SEO metadata.

### summaryFallback

Fallback text used when no explicit description is available. A string — default is `""`.

## seo.description.length

Description length validation settings.

### errorlevel

Validation severity when description length is outside the configured range. A string — valid values are `warning`, `error`, and `ignore`. Default is `"warning"`.

### min

Minimum recommended description length in characters. An integer — for example `110`.

### max

Maximum recommended description length in characters. An integer — for example `160`.

## seo.favicons

Favicon file settings used by generated metadata.

### icon

The PNG favicon filename. A string — default is `"favicon.png"`.

### svgIcon

The SVG favicon filename. A string — default is `"favicon.svg"`.

## seo.schemas

Schema.org configuration for structured data output.

### type

The primary schema type. A string — valid values are `"Organization"` and `"Person"`. Default is `"Organization"`.

### logo

Logo image used for structured data. A string — default is `"favicon-512x512.png"`.

### name

Name used for Organization or Person structured data. A string — for example `"Thulite"`.

### sameAs

Profile URLs associated with the Organization or Person. An array of strings — default is `[]`.

### images

Default images used in schema markup. An array of strings — default is `["cover.png"]`.

### article

Sections that should use the `Article` schema. An array of section names — default is `[]`.

### newsArticle

Sections that should use the `NewsArticle` schema. An array of section names — default is `[]`.

### blogPosting

Sections that should use the `BlogPosting` schema. An array of section names — default is `[]`.

### product

Sections that should use the `Product` schema. An array of section names — default is `[]`.