Canberra's Digital Dead Weight: The Numbers Behind the Duplicate Image Problem Draining Government Websites

Across ACT government websites, procurement portals and internal content management systems, duplicate images — the same photograph or graphic stored multiple times under different file names — are consuming storage capacity that costs real dollars and slowing page load times for the public servants and Canberrans who rely on those platforms daily. An audit framework developed by the Australian Government's Digital Transformation Agency, which is headquartered on Mort Street in the city, identified image duplication as one of the top three contributors to bloated federal and territory web estates.

The timing matters. The ACT government is midway through a broader digital uplift program, and scrutiny over IT spending has intensified after the 2025-26 Budget allocated $47 million toward whole-of-government digital infrastructure — a line item that drew questions during Senate estimates hearings in March. With that money now being drawn down, agencies face pressure to demonstrate they are not paying cloud storage providers for redundant data.

What the Data Actually Shows

Storage pricing for government cloud contracts in Australia typically runs between $0.023 and $0.025 per gigabyte per month under whole-of-government arrangements negotiated through the Digital Transformation Agency. That sounds trivial until you factor in scale. A single mid-sized ACT agency website can accumulate tens of thousands of image assets over a decade of operations, with duplication rates — where the same image appears two or more times under different filenames or in different directories — commonly reaching between 20 and 35 percent of the total image library, according to published findings from web governance platform studies conducted across comparable OECD government web estates.

For context, the ACT government's ServicesCanberra portal, which handles transactions ranging from rates payments to vehicle registrations, has been publicly noted in ICT committee hearings as one of the highest-traffic government platforms in the territory. Image assets supporting that kind of transactional site multiply fast: banner images, icon sets, form graphics and identity assets are frequently re-uploaded by different content editors who cannot locate the original file. The result is hundreds of near-identical copies sitting in separate content folders, each drawing on storage allocation and each adding marginal but cumulative overhead to page rendering.

The University of Canberra's Centre for Computational Media Aesthetics has published research examining how image duplication in large content repositories degrades search indexing and user experience — a finding that has direct implications for public sector web management. Slow-loading pages on government portals cost time: even a two-second delay in page load has been correlated with a 10 to 20 percent drop in task completion rates in usability studies. For a portal processing thousands of daily transactions, that translates into measurable service friction.

Canberra Agencies Facing the Clean-Up

The ACT Digital Services branch, operating out of offices on Constitution Avenue in Reid, has been piloting automated duplicate-detection tooling across at least three agency content management systems since February. The approach uses perceptual hashing — a technique that identifies visually identical or near-identical images regardless of filename or format — to flag candidates for consolidation. Early internal results, referenced in a March 2026 ICT Steering Committee agenda published on the ACT government open data portal, pointed to potential storage reductions of up to 28 percent in the pilot agencies' image libraries.

The Australian National University, which manages one of the largest research web estates in the capital, adopted a similar deduplication policy for its digital asset management system in 2024, reducing its image repository by roughly 18,000 files in the first quarter of implementation.

For agencies yet to begin the process, the practical steps are straightforward. Conducting a baseline audit using open-source tools such as dupeGuru or commercial digital asset management platforms is the standard starting point. Setting upload policies that require editors to search an existing library before adding new files addresses the behaviour driving the problem. Scheduling quarterly reviews of image libraries, particularly after major website rebuilds or machinery-of-government changes — which Canberra sees more frequently than most cities — keeps duplication from accumulating again. The cost of not acting is low per gigabyte but, across a government web estate measured in terabytes, it adds up every billing cycle.