SEO glossary

SEO words, in plain English

The terms you’ll hear from agencies, tools and Google itself, each explained in one sentence with an example from a real kind of business.

Every term, A to Z

57 terms

Index
  • 404 error

    Website health

    The “page not found” message someone sees when they visit a web address that no longer exists.

    In real lifeA dentist renames “/whitening” to “/teeth-whitening”; anyone clicking the old link now lands on a 404 unless it’s redirected.

  • AI Overview

    AI search

    Google’s AI-written summary that appears at the top of some search results, with links to the pages it drew from.

    In real lifeSomeone searches “how much does a new water heater cost” and Google writes a short answer above the usual links, citing two plumbing websites.

  • Alt text

    Content

    A short written description of an image, read aloud by screen readers and used by search engines to understand what the picture shows.

    In real lifeA bakery’s photo gets the alt text “three-tier wedding cake with white roses” instead of “IMG_2041”.

  • Anchor text

    Content

    The clickable words of a link, which tell readers and search engines what the linked page is about.

    In real life“See our emergency drain cleaning” is clearer anchor text than “click here”.

  • Bounce rate

    Website health

    The share of visits where someone leaves without doing anything else on your website.

    In real lifeIf most people land on a landscaper’s homepage and leave straight away, the page may not be answering what they came for.

  • Canonical tag

    Website health

    A small line of code that tells search engines which version of a page is the main one when several addresses show similar content.

    In real lifeAn online store’s boots page is reachable with and without a colour filter in the address; the canonical tag points both to the main page.

  • Click-through rate (CTR)

    Google basics

    The share of people who see your result in Google and actually click it.

    In real lifeA plumber’s page appears in 1,000 searches and gets 40 clicks: a 4% click-through rate.

  • Content calendar

    Content

    A schedule of what you’ll publish and when, so posts go out regularly instead of in bursts.

    In real lifeA landscaping company plans a post every Tuesday: spring clean-ups in March, lawn care in May.

  • Conversion

    Content

    When a visitor does the thing you want them to do: call, book, fill in a form or buy.

    In real lifeFor a dentist, a conversion is a new patient booking a check-up online.

  • Core Web Vitals

    Website health

    Google’s three measurements of how a page feels to use: how fast it loads, how quickly it responds, and whether things jump around while loading.

    In real lifeA café’s menu page loads slowly on phones because of huge photos, which shows up as a poor loading score.

  • Crawling

    Google basics

    Search engines sending automated programs to visit your pages and read what’s on them.

    In real lifeWhen a law firm publishes a new “Wills and estates” page, Google has to crawl it before it can show up.

  • Domain authority

    Google basics

    A score made up by third-party SEO tools to estimate how strong a website’s links are. It is not a number Google uses.

    In real lifeA tool rates a new bakery’s website 8 and a national chain’s 70; it’s a rough comparison, not a Google ranking.

  • Duplicate content

    Website health

    The same or nearly the same text on more than one page, which leaves search engines to choose one version to show.

    In real lifeA cleaning company copies the same paragraph onto 20 town pages, so Google struggles to tell them apart.

  • E-E-A-T

    Content

    Experience, Expertise, Authoritativeness and Trustworthiness: ideas from Google’s guidelines for people who rate search quality, describing what helpful content looks like.

    In real lifeA physio’s injury guide written by a named, qualified physiotherapist shows more experience than an anonymous post.

  • Evergreen content

    Content

    Content that stays useful for years rather than going out of date.

    In real life“How to tell if your furnace needs replacing” helps people every winter; “our 2019 holiday hours” doesn’t.

  • Google Search Console

    Website health

    A free Google tool that shows which searches bring people to your website and flags pages Google can’t read properly.

    In real lifeA florist sees in Search Console that “wedding bouquets Oakville” brought 60 clicks last month.

  • HTTPS

    Website health

    A secure connection between a visitor’s browser and your website, shown by the padlock in the address bar; Google has said it counts as a small ranking signal.

    In real lifeA clinic’s booking form should always be on an address starting with https:// so patient details are protected.

  • Impressions

    Google basics

    The number of times one of your pages appeared in search results, whether or not anyone clicked.

    In real lifeA roofer’s “roof repair cost” page had 2,000 impressions this month, even though only 60 people clicked.

  • Indexing

    Google basics

    Google storing a page in its database after crawling it, so the page is able to appear in search results.

    In real lifeA new “Emergency plumber in Hamilton” page won’t show up for anyone until Google has indexed it.

  • Keyword

    Google basics

    The words someone types into a search engine when they’re looking for something.

    In real life“Dog grooming near me” and “how much is dog grooming” are both keywords a grooming salon cares about.

  • Keyword difficulty

    Google basics

    A third-party tool’s estimate of how hard it would be to rank for a search, based mostly on the pages already ranking.

    In real life“Plumber” scores very hard, while “tankless water heater repair in Guelph” scores much easier.

  • Keyword stuffing

    Content

    Cramming the same search words into a page over and over, which Google’s spam policies specifically warn against.

    In real life“Best plumber Toronto, Toronto plumber, plumber in Toronto…” reads badly and can hurt more than help.

  • Knowledge panel

    Google basics

    The information box Google shows beside or above results about a well-known business, person or place.

    In real lifeSearching a restaurant’s exact name shows a panel with its photos, hours, menu link and reviews.

  • llms.txt

    AI search

    A proposed text file that lists a website’s most important pages for AI tools; it isn’t an official standard, and Google has said it doesn’t use it.

    In real lifeA software company adds an llms.txt file, but still relies on clear pages and outside mentions to be named by AI tools.

  • Local citation

    Local

    Any mention of your business name, address and phone number on another website, such as a directory or local chamber of commerce.

    In real lifeAn electrician is listed on Yelp, a trade association site and a town directory. Each is a citation.

  • Local pack (map pack)

    Local

    The group of local businesses Google shows with a map, usually three, when someone searches for something nearby.

    In real life“Coffee shop near me” shows a small map with three cafés, their star ratings and opening hours.

  • Long-tail keyword

    Google basics

    A longer, more specific search that fewer people make, but the people who do usually know exactly what they want.

    In real life“Same-day boiler repair in Leeds” gets fewer searches than “boiler repair” but brings people ready to call.

  • Meta description

    Google basics

    The short summary you write for a page, which Google may show under the page title in search results.

    In real life“Blocked drain? We clear kitchen, bathroom and main drains the same day across Hamilton.”

  • Mobile-friendly

    Website health

    A website that’s easy to read and use on a phone; Google mainly looks at the mobile version of a site when deciding how to rank it.

    In real lifeA salon’s booking button is big enough to tap with a thumb and the prices don’t need zooming in.

  • NAP

    Local

    Short for Name, Address and Phone number. Keeping them identical everywhere online is a common local search recommendation.

    In real lifeA clinic lists “Suite 4, 12 King St” on its website but “12 King Street #4” on a directory; tidying these helps avoid confusion.

  • Organic traffic

    Google basics

    Visitors who find your website through normal, unpaid search results rather than ads.

    In real lifeA landscaper stops paying for ads in winter but still gets visitors from their “snow removal” page.

  • Page speed

    Website health

    How quickly a page loads and becomes usable, especially on a phone connection.

    In real lifeA restaurant replaces a giant homepage video with a photo and the page loads in two seconds instead of eight.

  • Page title (title tag)

    Google basics

    The name of a page that usually appears as the clickable blue headline in search results.

    In real life“Drain Cleaning in Hamilton | Same-Day Service” tells searchers exactly what they’ll get.

  • People Also Ask

    Google basics

    A box in Google results with related questions that open up to show a short answer from a website.

    In real lifeSearching “teeth whitening” shows questions like “How long does whitening last?”, each answered by a dental site.

  • Proximity

    Local

    How close a business is to the person searching. It’s one of the three things Google says it weighs for local results, alongside relevance and prominence.

    In real lifeTwo equally good pizzerias: the one three streets away is more likely to appear for “pizza near me”.

  • Ranking

    Google basics

    Where your page appears in the search results for a particular search.

    In real lifeA plumbing company ranks third for “water heater installation Burlington” and first for its own name.

  • Redirect

    Website health

    An instruction that automatically sends visitors and search engines from an old web address to a new one.

    In real lifeWhen a café moves its menu from “/food” to “/menu”, a permanent (301) redirect keeps old links working.

  • Reviews

    Local

    Customer ratings and comments on places like your Google Business Profile; Google says review count and score factor into local rankings.

    In real lifeA mechanic with 180 recent reviews averaging 4.8 stands out in the map pack, and replying to them builds trust.

  • Rich results

    Google basics

    Search results with extras such as star ratings, prices, event dates or recipe photos.

    In real lifeA bakery’s cake recipe shows a photo, cooking time and star rating right in Google.

  • robots.txt

    Website health

    A small file on your website that tells search engine crawlers which parts of the site they may visit.

    In real lifeA shop blocks crawlers from its checkout pages, but must be careful not to block its product pages by mistake.

  • Schema markup (structured data)

    Website health

    Behind-the-scenes labels in a page’s code that tell search engines exactly what the information is: a price, an address, opening hours, a question and its answer.

    In real lifeA dentist’s page labels “Mon–Fri 8am–6pm” as opening hours so Google doesn’t have to guess.

  • Search intent

    Google basics

    What the person searching actually wants: to learn something, compare options, buy, or visit somewhere.

    In real life“How to fix a leaky tap” wants a guide; “plumber near me open now” wants a phone number.

  • Search volume

    Google basics

    An estimate of how many times a search is made each month; different tools give different numbers.

    In real lifeA tool estimates “dog grooming prices” gets around 2,900 searches a month in one city.

  • SERP

    Google basics

    Short for search engine results page: the page you see after searching on Google.

    In real lifeThe SERP for “roof repair near me” shows ads, a map with three roofers, then the regular results.

  • Service area business

    Local

    A business that visits customers rather than serving them at a shop, and can hide its address on Google while showing the areas it covers.

    In real lifeA mobile dog groomer works from home, so their Google profile lists the towns they drive to instead of a street address.

  • Sitemap

    Website health

    A list of the pages on your website, made for search engines so they don’t miss any.

    In real lifeA renovation company adds 12 new project pages; the sitemap makes sure Google knows they exist.

  • Thin content

    Content

    Pages with so little useful information that they don’t really help the person who lands on them.

    In real lifeA “Services” page that just says “We do all kinds of plumbing. Call us.” gives Google and customers nothing to go on.

  • Topic cluster

    Content

    A group of related pages that all link to one main page on the same subject.

    In real lifeA physio clinic’s main “Back pain” page links to posts on sciatica, desk posture and lifting injuries, and they link back.

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