SEO & Metadata
What is a meta tag?
An HTML element in the `<head>` that supplies metadata about the page, title, description, viewport, social previews, robots directives.
<meta> tags don't render anything visible. They communicate metadata to browsers, search engines, and social platforms. The most important ones in 2026 are: <title> (technically not a meta tag, but plays the same role), <meta name="description"> for SERP snippets, <meta name="viewport"> for mobile, and the Open Graph and Twitter Card tags for social previews.
For SEO specifically, the description meta tag is no longer a ranking signal but is still what Google often shows under your SERP entry. Writing it well (150-160 characters, action-oriented, with a clear value proposition) directly affects click-through rate even when it has no impact on rank.
Other useful meta tags: <meta name="robots" content="noindex"> to keep a page out of search, <meta name="theme-color"> for mobile browser chrome, <meta charset="utf-8"> for character encoding (always first in <head>).
How Brand.dev uses meta tag
Endpoints in the Brand.dev API where this concept comes up directly.
FAQ
Do meta tags help SEO?
Title and description influence click-through from SERPs. Most other meta tags either help robots understand intent (noindex, canonical) or have no SEO impact at all (keywords meta tag is famously ignored).
What's the meta keywords tag?
A historical SEO tag that hasn't been used by Google since 2009. Don't bother setting it.
How long should a meta description be?
150-160 characters fits in Google's desktop SERP without truncation. Mobile shows fewer.
Related terms
A meta-tag protocol Facebook introduced in 2010 that tells social platforms how to render a link preview, title, description, image, and type.
The "official" URL for a piece of content when multiple URLs could return the same content, declared via `<link rel="canonical" href="…">`.
Information on a page formatted so that machines can parse its meaning, not just its text, the foundation for rich snippets and AI-powered search.
Structured data added to a page using the schema.org vocabulary so search engines can understand its meaning and show rich results.