Isomer vs Single Digital Presence
Isomer
isomer.gov.sgSingle Digital Presence
vic.gov.auSide by side
| Figure | Isomer | Single Digital Presence |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | Yes |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Government Website Builders | 8.3 (#5) | 8.1 (#9) |
| Accessibility | The product uses accessibility-focused templates and prompts editors to complete essential accessibility fields. | Ripple components are designed for accessibility and are being updated toward the latest WCAG Level AA standards, although implementation choices still affect compliance. |
| Founded | 2018 | 2016 |
| Hosting | The Isomer team provides website hosting, maintenance and support for hosted sites. | Fully hosted websites are offered as a chargeable service, with management possible by SDP, the agency or a vendor. |
| Integrations | Classic Isomer supports whitelisted embeds including VICA, YouTube, Vimeo, FormSG, Data.gov.sg graphs and CheckFirst. | Salsa documents integrations with CKAN, Campaign Monitor, Mailchimp, Salesforce, Oracle, PayPal, Stripe, LDAP, Active Directory, Facebook and Twitter. |
| Limit: eligibility | Organisations outside Singapore government and public healthcare cannot use the hosted service. | Independent custom websites are intended for eligible departments or agencies and require approved site-admin permissions. |
| Purpose | Isomer is a free website builder for government agencies to create and launch static websites without coding expertise. | SDP is a secure, scalable web publishing platform for consolidating, managing and developing Victorian Government websites. |
| Scale | The official product report says more than 700 government websites use Isomer and reports 100% uptime for hosted sites. | The platform supports more than 60 websites and over 120 vic.gov.au sections across 10 government departments. |
| Security | Isomer centrally manages security testing and audits, including vulnerability assessment and penetration testing, for hosted sites. | The service provides security assessments and updates, upgrades to Drupal and Ripple, outage and update alerts, bot protection and disaster recovery. |
| Support | The Isomer team offers training and technical support, and says non-urgent contact requests may take up to five working days to receive a response. | The help centre covers CMS training, content, accessibility, analytics, SEO, release notes, site administration and developer guides. |
| What it does | Isomer is a static website builder for Singapore government agencies that provides managed hosting while agencies manage site content. | Single Digital Presence is Victoria’s whole-of-government web publishing platform, with vic.gov.au as its main public implementation. |
Plans
Single Digital Presence
- Create a new section on vic.gov.auFree
- Independent website or building a componentPriced on request
In their own words
Isomer
Isomer is a free website builder for Singapore government agencies and public healthcare institutions to create static websites without coding. Its Isomer Studio editor lets public officers build, edit, and publish pages with drag-and-drop controls. Publishing supports review requests, approvals, and release of approved changes. Agencies can select page layouts, combine components, and customize colours, logos, and favicons.
Accessibility prompts cover essential fields, while templates and components are designed to support accessible sites. SEO features include predefined headings, generated tables of contents and folder index pages, image alt text, and customizable meta descriptions. Open Government Products builds and manages Isomer. Its team handles hosting, maintenance, support, and compliance with relevant IM8 and Digital Service Standards clauses, and centrally manages security testing and audits. Isomer does not provide website design services or custom layouts. Domain costs and third-party services such as web monitoring may be extra.
Single Digital Presence
Single Digital Presence (SDP) is a web publishing platform for Victorian Government websites, established on Drupal in 2016. Its CMS provides publishing tools, data collection forms, revision history, federated approvals and domain redirect management. Each website receives Google Analytics dashboards. The service also provides security assessments and updates, Drupal and Ripple upgrades, outage and update alerts, bot protection and disaster recovery. The Ripple design system supplies styles, components and patterns for Victorian Government branded digital products. SDP’s design framework states technical and design compliance to Level AA of the latest WCAG accessibility standards. Victorian public servants can access online content training, a help centre and a Community of Practice. Technical support covers website bugs, malfunctioning elements and CMS assistance; 24/7 emergency support applies to outages and emergencies covered by the service level agreement. The service runs over 140 instances across 60 sites. Creating a new section on vic.gov.au costs nothing and requires approval from the lead department’s Digital Management Committee. Independent websites or components require a quote after a requirements document; some features and services incur charges.