URL: /rules/i18n/lang-attribute

---
title: "Lang Attribute"
description: "Checks for lang attribute on html element"
---

Checks for lang attribute on html element

| | |
|---|---|
| **Rule ID** | `i18n/lang-attribute` |
| **Category** | [Internationalization](/rules/i18n) |
| **Scope** | Per-page |
| **Severity** | warning |
| **Weight** | 4/10 |

## Solution

The lang attribute on the html element declares the page's language, helping browsers, screen readers, and search engines process content correctly. Add lang="xx" to your html tag using a valid ISO 639-1 code (e.g., "en", "es", "fr"). For regional variants, use lang="en-US" or "en-GB". This improves accessibility and helps search engines serve your content to the right audience.

## Enable / Disable

### Disable this rule

```toml squirrel.toml
[rules]
disable = ["i18n/lang-attribute"]
```

### Disable all Internationalization rules

```toml squirrel.toml
[rules]
disable = ["i18n/*"]
```

### Enable only this rule

```toml squirrel.toml
[rules]
enable = ["i18n/lang-attribute"]
disable = ["*"]
```