terminology

Website & SEO Glossary: Terms Every UK Business Owner Should Know

Plain-English definitions of the web, SEO and digital marketing terms agencies and platforms use.

10 min read Updated 2026-07-01
Darren Dudley, Founder & Director at BuzzBytes
Written by Darren Dudley
Experienced practitioner1 July 2026

SEO & search

SEO (Search Engine Optimisation), improving your site so it ranks higher on Google. Organic, unpaid search results. SERP, search engine results page. Keywords, the phrases people search for. Meta tags, titles and descriptions shown in search results.

Core Web Vitals, Google's speed/UX signals. Structured data (schema), code that helps search engines understand your content. Crawl, how Google reads your site. Index, Google's stored copy of your pages.

Web & technical

CMS, content management system (lets you edit your own site). Responsive, adapts to mobile and desktop. Hosting, where your site lives online. Domain, your web address. SSL/HTTPS, the padlock; encrypts data.

301 redirect, sends visitors from an old URL to a new one. DNS, the system that maps your domain. Plugin, add-on software (common in WordPress). Sitemap, a list of your pages for Google.

Marketing & conversions

Conversion, a desired action (a call, form, sale). CTA, call to action. Lead, a potential customer's enquiry. CRM, customer relationship management software. Automation, software doing a task without manual steps. Landing page, a page built for one campaign or offer.

Frequently asked questions

What's the difference between SEO and PPC?

SEO earns organic (unpaid) rankings over time; PPC pays to appear at the top of Google immediately. Most businesses benefit from both. See our SEO vs PPC comparison.

What does 'responsive' mean?

A responsive website automatically adjusts its layout to look and work well on phones, tablets and desktops. It's essential, over half of UK web traffic is mobile.

Related services

Darren Dudley, Founder & Director at BuzzBytes
Written by Darren Dudley
Experienced practitioner1 July 2026
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