DefinitionA short summary of a page in its HTML head that search engines may show under the title in results. It does not affect rankings directly but strongly influences click-through rate.
A meta description is a short summary of a page, placed in the HTML head, that search engines may show under the title in the search results. It does not affect rankings directly, but it strongly influences how many people click your result. Google confirmed in 2009 that the description tag is not a ranking signal. What has changed since is how often Google ignores it: when a passage on the page matches the query better, it writes its own snippet instead.
The common misunderstanding is that meta descriptions are either a ranking trick or a box to tick. Shop owners stuff keywords into them hoping for a lift, or leave them to a template that produces “Buy X online at Y. Free shipping.” for every product. Neither works. A meta description is advertising copy for a free listing: the one place on the search results page where you tell a searcher why your page, out of ten, deserves the click.
Why meta descriptions matter for a webshop
Rankings decide whether you appear; the snippet decides whether you get the visit. Two shops in position three and four for “wandelschoenen heren waterdicht” can see very different click-through rates. One snippet reads like a product feed; the other mentions the price range, sizes 40 to 48 in stock and same-day shipping before 22:00. Over thousands of impressions a month, one or two points of CTR is real revenue, gained without moving a position.
The reverse is also true. If the description is missing, Google picks a fragment from the page, on a category page often cookie banner text or a filter label. I regularly see Dutch webshops ranking well with a snippet that says “Accepteer cookies om verder te gaan”: paying the full cost of ranking, collecting a fraction of the clicks. Writing the description yourself does not guarantee Google uses it, but it gives Google a good default and raises the floor on every page.
How to check your meta descriptions
I start with a Screaming Frog crawl. It lists every URL with a missing, duplicate, too long or too short description, and the duplicate filter is the fastest way to expose template boilerplate across hundreds of products. For a single URL, the free Meta Data Checker on this site reads the title tag and meta description and shows a SERP preview. I keep descriptions between 150 and 160 characters and front-load the message, because mobile shows less than desktop.
Whether a description actually works is a Google Search Console question. In the Performance report I look at CTR per page and query and compare it with pages in a similar position. A page in position four with a CTR far below its neighbours usually has a snippet problem. I also run a few live searches, because Search Console does not say whether Google showed your text or rewrote it. Studies on rewrite rates vary, but figures above 60 percent are commonly cited.
Common meta description mistakes
Boilerplate from a template. “Buy [product] online at [shop]. Free shipping and fast delivery.” repeated across 2,000 products is the most common pattern I see in WooCommerce, PrestaShop and Lightspeed shops. Google treats these as near-identical and rewrites nearly all of them, so you have effectively written nothing.
Keyword stuffing. A description that reads “kinderfietsen, kinderfiets kopen, kinderfiets 20 inch, goedkope kinderfietsen” is written for a ranking factor that does not exist. When it is shown, it looks like spam next to a competitor who wrote a sentence.
No reason to click. “This page shows our range of office chairs.” Accurate, and forgettable. The searcher wants to know what makes this result worth opening: price range, stock, delivery time, guarantee, specialism.
Ignoring the snippet after writing it. Descriptions are written once at launch and never revisited. Prices change, products sell out, and a promotion from two years ago is still promised in the snippet. Pages that drive most of your traffic deserve a check every quarter.
How I handle meta descriptions for clients
I do not write every description of a webshop by hand, and a template alone cannot do it either, so the method is tiered. The top 50 to 100 pages by impressions, usually the homepage, main categories and best-selling products, get a hand-written description built on three elements: the search intent in the first words, one concrete benefit and a reason to act. For product pages that means price, availability and delivery time; for category pages the breadth of the range. The long tail gets a template that pulls in real product attributes (brand, size range, material, price) instead of a fixed sentence, so each description is at least unique.
The deliverable is a spreadsheet with URL, current and new description, character count and priority, loaded through the SEO plugin or a CSV import. This work sits inside on-page SEO and runs alongside title tag rewrites, because the two are shown together and should tell one story. In an e-commerce SEO project it also feeds the content plan: queries a page attracts but cannot answer in its snippet usually mean the page itself needs better content.
Frequently asked questions
How long should a meta description be?
Aim for 150 to 160 characters. Google truncates by pixel width rather than character count, and mobile shows less than desktop. Put the most important message in the first 100 characters so it survives truncation.
Why does Google show a different description than the one I wrote?
Google rewrites the snippet when a passage from the page matches the query better than your description. That happens more often with generic or duplicate descriptions and pages that rank for many queries. You cannot force Google to use yours, but a specific, unique description that matches the main intent of the page is used far more often than a boilerplate one.
Do I need a unique meta description on every page?
Every indexable page should have one meta description, and it should be unique. Duplicates are not a penalty, but they signal to Google that the text is not worth showing. For a large catalogue a dynamic template with real product data is acceptable for the long tail, as long as your most important pages are written by hand.
Does the meta description affect rankings at all?
Not directly. Google has said since 2009 that the description tag is not a ranking signal, and that still holds. Its effect is indirect: a better snippet earns more clicks from the same position, and those visitors are what you were ranking for in the first place.