How Canberra's Government Websites Ended Up Buried in Duplicate Images — and What's Being Done About It

Thousands of duplicate images are clogging the content management systems of federal and ACT government websites, the product of nearly a decade of rushed digital migrations, understaffed web teams, and procurement cycles that prioritised new platforms over cleaning up old ones. The problem is not abstract. It slows page load times, inflates cloud storage costs, and makes accessibility compliance — a legal requirement under the Disability Discrimination Act 1992 — structurally harder to achieve when the same image exists in a system under six different file names with six different alt-text entries, or none at all.

The issue has surfaced as a live operational concern in 2026 partly because of deadlines. The federal Digital Transformation Agency's Web Accessibility National Transition Strategy set June 30, 2026 as a key milestone for Commonwealth entities to demonstrate measurable progress toward WCAG 2.2 compliance. Agencies that have been auditing their content libraries ahead of that date have repeatedly encountered the duplicate-image problem as a bottleneck — you cannot write accurate, consistent alt text for an image you cannot confidently identify as the canonical version.

How Canberra Became Ground Zero

Canberra carries an outsized share of this problem because the national capital houses the digital publishing operations for the bulk of Commonwealth agencies. Marcus Clarke Street, London Circuit, and the cluster of departmental buildings around the Parliamentary Triangle collectively employ thousands of web content officers, communications staff, and digital product managers. When a department like the Department of Health and Aged Care or Services Australia undergoes a machinery-of-government change — and there have been several since 2019 — its intranet and public website content gets migrated in bulk. Images come with it, duplicated, renamed, and stripped of metadata in the process.

The ACT government's own digital estate has a parallel version of the same story. The ACT Government's digital.act.gov.au platform, which consolidates services for residents across Gungahlin, Belconnen, and the inner north, underwent a significant redevelopment between 2021 and 2023. Content editors working across directorates including Transport Canberra and City Services and the Environment, Planning and Sustainable Development Directorate routinely uploaded fresh images without checking whether the asset library already held an identical or near-identical file. By the time the platform was audited last year, multiple directorates had independently uploaded the same light rail construction photography, in some cases more than a dozen times.

The Cost of Doing Nothing

Cloud storage is not free. Amazon Web Services and Microsoft Azure, the two dominant platforms used across the Commonwealth's digital estate, charge for storage at scale. While per-gigabyte costs have fallen steadily, the volume of redundant image files across a large agency can run to hundreds of gigabytes when uncompressed originals are retained alongside web-optimised derivatives. Independent digital audits of mid-sized Commonwealth agencies conducted by Canberra-based consultancies over the past two years have found duplicate asset rates ranging from 18 per cent to upwards of 40 per cent of total image libraries, according to publicly available tender documentation on AusTender.

The Australian National University's 3A Institute and human-centred computing researchers at the University of Canberra have both flagged the broader question of government content debt in published research, framing it as a governance problem rather than a technical one. The files exist because workflows never required deletion. Nobody was accountable for the library as a whole.

Fixing it requires three things running in parallel: automated deduplication tooling built into the CMS at the point of upload, a one-time remediation project to clear existing duplicates, and revised content governance policies that assign ownership. Several agencies are now piloting hash-based image matching tools that flag likely duplicates before a file is saved. The ACT Government's Digital Strategy 2025-2028, published last year, nominates content quality as a priority work stream, though specific timelines for the image remediation component have not been made public. For public servants managing agency websites from offices along Northbourne Avenue or in Barton, the practical advice is straightforward: before the next site migration kicks off, audit what you already have. The alternative is inheriting the same problem again, at greater scale.