How Canberra's Government Websites Ended Up Flooded With Duplicate Images — And Why It Took Years to Notice

The ACT Government's digital content libraries contain tens of thousands of image files. A significant share of them are duplicates. That is not a recent discovery — it is the endpoint of decisions made, and not made, across more than a decade of website rebuilds, agency restructures and procurement cycles that prioritised going live over going clean.

The issue matters now because the federal government's Digital Transformation Agency has been tightening content governance requirements for Commonwealth platforms since mid-2025, and ACT agencies whose systems interface with federal portals are under pressure to audit and rationalise their own digital asset stores before a compliance deadline that industry sources place in the second half of 2026. The cost of inaction is no longer just aesthetic — bloated image libraries slow page load times, complicate accessibility reviews and create version-control headaches when visual identity guidelines change.

How the Problem Was Built, Migration by Migration

The story tracks back to roughly 2014 and 2015, when a wave of ACT Government agencies moved from legacy content management systems onto newer platforms. At Transport Canberra, the agency managing the then-nascent light rail planning process, communications staff were importing photography from old intranets manually. There was no deduplication step built into the workflow. Files were renamed inconsistently — the same photograph of Northbourne Avenue construction activity might exist under four different filenames across two different content repositories.

The Australian National University faced a parallel version of this problem when it consolidated several faculty websites under a unified web presence around 2017 and 2018. The University of Canberra undertook similar consolidation work on its Bruce campus digital channels. Neither institution is unique; the pattern repeated itself in virtually every organisation that migrated content without a pre-migration asset audit. Staff under deadline pressure copied what they needed and moved on.

Within ACT public service directorates, the problem compounded further after the 2019 machinery-of-government changes that reshuffled responsibilities across several agencies. Assets created under one directorate's brand were ported into successor agencies without review. The same hero image of Lake Burley Griffin — taken during the 2018 spring tulip season — reportedly appears in multiple variations across the Canberra region tourism digital assets, the ACT Health promotional library and at least one economic development publication.

Storage Costs and the Audit Imperative

Cloud storage is cheap but not free. Commercial rates for object storage used by government-grade platforms typically sit between AU$0.02 and AU$0.025 per gigabyte per month at the volume tiers relevant to mid-size government agencies. That sounds trivial until an unmanaged image library stretches into hundreds of gigabytes, most of it redundant, and that cost recurs every month for years.

More consequentially, duplicate images undermine automated accessibility compliance checks. When the ACT Government updated its web accessibility standards in line with WCAG 2.1 requirements — work that progressed through 2022 and 2023 — content auditors found that duplicate files frequently carried inconsistent or missing alt-text. The same photograph, uploaded twice by different staff, might have correct alt-text in one instance and none at all in the other. Automated scanning tools logged both as separate issues, inflating the apparent scale of non-compliance.

The Digital Transformation Agency's updated content governance framework, released in October 2025, explicitly flags image deduplication as a prerequisite for agencies seeking accreditation under the refreshed Australian Government Style Manual digital publishing standards.

For Canberra-based agencies — and the capital hosts a disproportionate share of Commonwealth digital publishing operations, given the concentration of departments along the Parliamentary Triangle and in Barton and Woden — the practical next step is a structured asset audit using one of several automated hash-matching tools now available on the Digital Marketplace procurement panel. The audit itself is unglamorous work. It involves comparing file checksums, reviewing metadata, and making editorial decisions about which version of a duplicated image carries the correct rights clearances and accessibility markup.

Agencies that have deferred this work through successive budget cycles are running out of runway. The compliance window is closing, and the accumulated weight of a decade's worth of rushed migrations is finally demanding a reckoning.