Google Rewrites Most Meta Descriptions. Here's How to Write Ones It Keeps

A meta description that earns clicks answers the searcher's query in the first few words, stays within roughly 150 to 160 characters so it displays intact, uses active voice, and mirrors the language of the query itself. It will not directly improve your rankings, and Google frequently replaces descriptions with its own snippet, but a well-written description is far more likely to be kept, and when it is shown, it functions as the ad copy that decides whether the searcher picks your result. This guide covers the honest reality of how descriptions work, the rules that make them clickable, worked examples, and how to fix hundreds of missing descriptions without writing each one by hand.

The honest framing: Google rewrites descriptions, so write ones it keeps

Let's start with the part most guides bury. Google's own documentation is clear that the snippet shown in results is often generated from page content when Google judges that a page-sourced snippet answers the query better than the supplied meta description. In practice, a large share of displayed snippets are not the description the site author wrote.

This is not a reason to skip descriptions. It changes what a good description is:

• A description that summarizes the page accurately and matches likely queries gets kept more often. Google rewrites when your description is vague, duplicated, stuffed, or unrelated to the query. Give it no reason to.
• Even a rewritten snippet often draws on your description. Precise, self-contained sentences are more quotable than marketing fluff.
• For your most important queries (the ones the page directly targets), a query-matched description is likely to survive. The rewrites concentrate on long-tail queries your one description could never cover anyway.

So the goal is not "control the snippet." The goal is "make the best snippet for your primary query so cheap to keep that Google keeps it."

The rules that make descriptions clickable

Answer first, elaborate second

The searcher typed a question, even when it did not have a question mark. Your first clause should visibly engage it. If the query is "how long do running shoes last," a description beginning "Most running shoes last 300 to 500 miles, but surface and stride change that…" wins the eye instantly. A description beginning "Welcome to our comprehensive footwear resource…" loses it just as fast.

Respect the length reality

Google truncates descriptions by pixel width, which usually lands between 150 and 160 characters on desktop and slightly fewer on mobile. Two practical rules:

1. Put the payload in the first 120 characters. Truncation should only ever cost you the garnish.
2. Do not pad to hit a number. A complete, sharp 110-character description beats a 158-character one stretched with filler.

Descriptions that are far too short or far too long across a site are exactly the kind of thing a site audit flags in bulk, alongside duplicate descriptions, which are just as damaging: fifty pages sharing one description tell Google to write its own fifty times.

Use active voice and a verb the reader can act on

Passive, abstract descriptions read like terms and conditions. Active descriptions read like an invitation.

Passive: "Information about redirect implementation can be found in this guide." Active: "Learn when to use a 301 vs a 302, and set up redirects in WordPress in under five minutes."

The query-mirror technique

When words in a snippet match the search query, Google bolds them. Bolded words act as visual anchors that pull the eye to your result. The query-mirror technique is simply: write the exact primary phrase, naturally, into the description.

If the page targets "xml sitemap best practices," the description should contain the literal phrase "XML sitemap best practices," not a synonym like "sitemapping guidelines." One natural inclusion is enough; repeating the phrase three times reads as spam and invites a rewrite.

One page, one description

Every description should be unique because every page's job is unique. If you cannot write a distinct description for a page, that is usually a signal the page itself duplicates another one, which is a bigger problem than metadata.

Examples: weak vs. strong

All examples below are generic illustrations written for this post, not real published snippets.

Query: "how to fix broken internal links"

Weak: "Our blog covers a wide range of topics related to website maintenance, SEO, and digital marketing best practices for businesses of all sizes."

Strong: "Broken internal links waste crawl budget and strand visitors. Here's how to find every broken link on your site and fix them in one pass."

Why it wins: engages the query in word one, states a cost, promises a complete outcome, and the phrase "broken internal links" will bold.

Query: "meta description length 2026"

Weak: "Meta descriptions are an important part of search engine optimization and should be carefully considered as part of your overall strategy."

Strong: "Meta descriptions truncate around 150–160 characters on desktop. See the current limits, what happens past them, and how to front-load the words that matter."

Query: "best schema plugin wordpress"

Weak: "We offer many features for your website including schema."

Strong: "Compare WordPress schema plugins on output quality, supported types, and price. Includes a setup walkthrough for Article, FAQ, and Product markup."

Notice the pattern across all three: specific nouns, a number where one exists, and a promise sized to the query.

Descriptions and titles are a team

The description should extend the title, never repeat it. If the title makes the promise, the description supplies the proof or the specifics. Reading them together in a SERP preview before you publish is the single fastest quality check: Hydrogen SEO renders the Google-style preview live as you type in the post's SEO panel, so a repetitive or truncated pairing is visible before it ever reaches a results page.

For sites with many pages, template variables keep the long tail covered: the plugin's titles and meta descriptions settings accept variables like %excerpt%, %title%, and %site_name% (type @ in the field to insert them), so archive and taxonomy pages get serviceable descriptions automatically. The full list is in the template variables reference. Templates are the floor, not the ceiling: hand-write descriptions for the pages that earn your traffic.

Fixing missing descriptions in bulk with Hydrogen AI

Almost every established WordPress site has the same problem: dozens or hundreds of older posts with no description at all, which means Google improvises one for every query. Writing them by hand is the task everyone agrees to do and nobody does.

Two ways Hydrogen SEO closes the gap:

1. Per-post AI suggestions. With a free account connected, click the AI button beside the description field and AI generates several description options, each with a character count, so you pick one that fits the display limit and the page.
2. The agent, in bulk. Hydrogen AI is a chat agent inside the plugin dashboard. Tell it, in plain language: "write meta descriptions for every post missing one." It works through the plugin's own registered abilities, shows you every change, and by default asks before writing, so you review rather than rubber-stamp. You can tighten the policy to ask before every single write, or run it read-only while you build trust. More ready-made commands live in the agent recipes.

The review step matters. AI descriptions are strong drafts, and for most archive-depth posts a strong draft is a massive upgrade over nothing. For your ten most valuable pages, edit the drafts with the query-mirror technique in mind.

A maintenance habit that takes ten minutes a month

1. Run a site audit and open the metadata findings: missing descriptions, duplicates, too long, too short.
2. Fix the money pages by hand, using the SERP preview.
3. Point Hydrogen AI at the rest.
4. In Search Console, find pages with high impressions and weak click-through, and rewrite those descriptions first; they are your highest-leverage edits.

Start with the pages Google is improvising for

Every page missing a description is a page whose search-results pitch is being written by an algorithm with no stake in your click-through rate. Reclaiming them is one of the fastest, lowest-risk wins in SEO.

The Hydrogen SEO plugin is free, and every non-AI feature (templates, SERP preview, audits) works with no account. Sign up free to add AI descriptions and the Hydrogen AI agent, and clear your missing-description backlog in an afternoon.