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Why Meta Descriptions Still Matter Even Though Google Rewrites Them Half the Time

Meta descriptions are one of those tags everyone writes and almost nobody measures. In this post I dig into what they still do for a page, what they stopped doing years ago, and why I keep writing them carefully anyway.

Illustration of a magnifying glass over a bar chart, representing search engine optimization
Meta descriptions still shape whether someone clicks, even when the search engine swaps in its own summary.

When I rebuilt an earlier course project around SEO fundamentals, I found myself questioning something I had mostly taken for granted: does the meta description tag actually do anything anymore. The honest answer is that it does, just not in the way most people assume, and the distinction is worth understanding before you decide whether it is worth the effort to write a good one.

What a Meta Description Actually Controls

The meta description does not influence your ranking position directly, and it has not for years, since search engines stopped treating it as a relevance signal once it became obvious that page authors would stuff it with keywords rather than write something useful (Moz, n.d.). What it does influence is click-through rate, meaning how many people who already see your result in the search results actually click it instead of one of the other nine links on the page. That is a real, measurable effect, just a different one than most people think they are getting.

Why Google Rewrites It Anyway

Here is the part that trips people up: Google frequently ignores the meta description you wrote and generates its own summary instead, pulled from whatever text on the page it judges most relevant to the specific search query (Google Search Central, n.d.). I used to find this frustrating until I reframed it, since it means writing a good meta description is really about writing a good fallback, one that Google uses often enough, and one that reads well on the rare occasions when it is not overridden, rather than something you can fully control.

What I Actually Do Now

On every project since, I write a specific, honest, roughly 150-character description for every page rather than reusing one description site-wide, since a description that could describe any page on the site is functionally the same as having no description at all. I also make sure the sentence right below my h1 or h2 on the actual page could stand in as a description on its own, since that is frequently the text Google pulls when it decides to override what I wrote in the head section.

References

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