What is information architecture?
Information architecture is how a website's content is grouped, labelled, addressed and linked. This guide explains each part and how they fit.
Guides
Ten guides to the methods behind a clear website structure, written for the people who look after Australian websites. Each one cites the official guidance it relies on.
Information architecture has a reputation for jargon, but at heart it comes down to a few plain questions. What goes together? What is it called? Where does it live? How do people get from one page to the next? These guides answer those questions one at a time, with examples and with links to the official guidance behind each recommendation.
If you are new to the subject, read what information architecture is first. It explains the parts of a structure and how they fit together, and links to the other guides where each part is covered in depth.
If you have a specific job in front of you, jump to the guide that matches it:
Each guide opens with a short answer, then explains the reasoning. Where a recommendation comes from a standard or an official source, we name it and link to it in the source list at the end. Those sources include Google Search Central for crawling, URLs and sitemaps; the W3C for accessibility, including WCAG 2.2, which became a W3C Recommendation on 5 October 2023; and the Australian Government Style Manual for writing and structure. Where a recommendation is our own judgement, we say so.
We do not quote statistics we cannot trace to a source, and we do not describe client results. Worked examples are invented and labelled as illustrations. The editorial policy explains how guides are researched, checked and updated.
The guides assume you look after a website with a fair amount of content: a council or agency site, a university or training provider, an association, a health or community service, a software or publishing business. They assume no special training. If you are an experienced practitioner, you may still find the source lists useful when you need to show colleagues where a recommendation comes from.
The guides are written in Australian English and refer to Australian guidance where it exists. That includes the Australian Government Style Manual, the Digital Transformation Agency's Digital Service Standard for Commonwealth services, the Australian Privacy Principles for anything that collects personal information, and the Disability Discrimination Act 1992 for accessibility. Prices in the cost guide are in Australian dollars.
Several guides pair with a free planning tool. The sitemap guide pairs with the sitemap builder, the taxonomy guide with the taxonomy planner, and the internal linking guide with the linking checklist. The tools run in your browser and export their results as files.
Search engine documentation and accessibility guidance change. Each guide shows the date it was last updated, and each source list shows the date the sources were checked. If you spot something that has changed, please tell us through the contact page and we will check it.
If you are about to start a website project, this order follows the life of the work:
If there is a structure question you would like a guide to cover, send it through the contact page. We prioritise topics that come up for the people who look after Australian websites, and we will tell you if a guide is planned.
Information architecture is how a website's content is grouped, labelled, addressed and linked. This guide explains each part and how they fit.
Card sorting shows how people group your content; tree testing checks whether they can find things in a proposed structure. How to run both cheaply.
How to design a website taxonomy: when to use categories, tags and facets, how to write the rules, and how to keep the vocabulary from sprawling.
Website navigation that works for keyboard and screen reader users: WCAG 2.2 criteria, disclosure menus, skip links, target size and Australian law.
How to plan website addresses: readable words, hyphens, lower case, folders or flat paths, parameters and what to do when pages move. With Google's rules.
Plan a website sitemap from visitor tasks: inventory content, group it, label it, set addresses and test it, then turn it into sitemap.xml at launch.
How internal links help people and search engines find your pages: hubs, related links, anchor text, orphan pages and keeping links working over time.
Restructure or migrate a website with care: inventory, redirect mapping, 301 and 308 redirects, internal link updates, a new sitemap and checks after launch.
How breadcrumbs, page titles, current-page markers and local menus tell visitors where they are, plus breadcrumb markup and accessibility details.
What information architecture and UX structure work costs in Australia in 2026: published hourly rates, what drives a quote, and how to compare offers.
If a guide raised more questions than it answered for your site, send us a note.