no-duplicate-footer-link-item-destinations

Disallow duplicate static footer link destinations within the same footer column.

Targeted pattern scope

This rule targets docusaurus.config.* files and inspects themeConfig.footer.links[*].items arrays.

What this rule reports

This rule reports later footer items in the same column that repeat an earlier static to or href destination.

Why this rule exists

Duplicate footer destinations usually come from copy/paste mistakes and make footer navigation noisier without adding value.

❌ Incorrect

export default {
    themeConfig: {
        footer: {
            links: [
                {
                    title: "Docs",
                    items: [
                        { label: "Overview", to: "/docs" },
                        { label: "Read the docs", to: "/docs" },
                    ],
                },
            ],
        },
    },
};

✅ Correct

export default {
    themeConfig: {
        footer: {
            links: [
                {
                    title: "Docs",
                    items: [
                        { label: "Overview", to: "/docs" },
                        { label: "Rules", to: "/rules" },
                    ],
                },
            ],
        },
    },
};

Behavior and migration notes

This rule reports and provides a suggestion to remove the later duplicate footer item.

When not to use it

Do not use this rule if your footer intentionally repeats destinations within a column for content or localization reasons.

Rule catalog ID: R065

Further reading

• Docusaurus footer configuration