[docs] SEO issues on https://base-ui.com/

[oliviertassinari]

This issue is a subset of #588, focused on keeping track of the SEO issues that we need to fix. I will continue to add items as I notice them.

The list:

• 1. We are missing the canonical links on all the pages. This is important so Google knows to not duplicate the pages

https://search.google.com/search-console/index/drilldown?resource_id=sc-domain%3Abase-ui.com&item_key=CAMYDyAC&hl=en

• 2. We use https://base-ui.com/react/components/slider for the URL. The "components" in the URL doesn't seem to serve a purpose; worse, it make the URL longer. Also, it prevents having a continuous keyword hit for "react slider", see

https://analytics.moz.com/pro/research/page-grader?keyword=react%20slider&url=http%3A%2F%2Fbase-ui.com

• 3. OG tags are missing, e.g. https://app.ahrefs.com/site-audit/6984453/data-explorer?columns=pageRating%2Curl%2Ctraffic%2CogTagsValid%2CogTagsAttributes%2CogTagsValue%2Cdepth%2Ccompliant%2CincomingAllLinks&current=16-04-2025T021716&filterId=e33308e6b679cf3bbf505dfb07d73d8d&issueId=c64d8b03-d0f4-11e7-8ed1-001e67ed4656. Those are missing:

<meta property="og:url" content="your value" />
<meta property="og:type" content="your value" />