Last updated: 5 August 2026
TOTALLISTER PTY LTD (ABN 95 155 821 944), operating Subnet Expert at subnetexpert.com (we, us, our).
Key Points
Please read these Terms in full. In particular, we draw your attention to:
- clauses 3 and 4 — the Content is general information only, is not professional advice, and may contain errors or be out of date; verify output before relying on it;
- clauses 10 and 11 — the limits on our liability, none of which affect your rights under the Australian Consumer Law; and
- our Privacy Policy and Cookie Policy (available on the Website) — how we handle your personal information.
1. About the Website
(a) Welcome to subnetexpert.com (Website). The Website allows you to access and use Subnet Expert, a subnet calculator for visualising, splitting and joining IP subnets and generating infrastructure-as-code snippets (Service).
(b) The Website is operated by TOTALLISTER PTY LTD (ABN 95 155 821 944) (we, us, our). Please read these terms and conditions (Terms) carefully. By accessing or using the Website or the Service, you agree to be bound by these Terms. If you do not agree, you must stop using the Website and the Service.
(c) We may update these Terms from time to time. The current version is the one published on the Website, and it applies to your use of the Website from the time it is published. We recommend you keep a copy of these Terms for your records.
2. About the Service
(a) Subnet Expert provides a subnet calculator for visualising, splitting and joining IP subnets and generating infrastructure-as-code snippets.
(b) The features of the Service may change over time. Where the Service is provided free of charge, we do not guarantee that it will always remain free or always remain available.
(c) The Service is a general-audience tool. It is not directed at children, and we do not knowingly collect personal information from them.
3. Information Only — No Professional Advice
(a) The Website and the Service provide subnet calculations, CIDR reference pages, network planning information and infrastructure-as-code snippets for AWS, Azure and GCP, and other content (Content), for general information purposes only.
(b) The Content is not, and must not be relied on as, professional advice of any kind, including legal, financial, accounting, taxation or network-engineering, IT infrastructure or security advice. The Content does not take into account your objectives, circumstances or needs.
(c) Before acting or relying on any Content, you should make your own enquiries, independently verify the Content, and where appropriate obtain advice from a suitably qualified professional relevant to your circumstances.
(d) You are solely responsible for how you use the Content, including any decision to use output of the Service in a production system or business process.
4. Accuracy and Currency of Information
(a) While we take reasonable care in preparing and operating the Service, we do not represent or warrant that the Content or any output of the Service is accurate, complete, reliable, current or error-free. Information and output may be out of date or contain errors.
(b) Content sourced from or describing third parties (including cloud providers, platforms, pricing, availability and technical behaviour) can change at any time without our knowledge. Always confirm important information directly with the relevant provider or authoritative source before relying on it.
(c) You must independently verify any output of the Service before using it for any purpose where an error could cause loss — for example, before deploying an addressing plan or generated configuration to a production environment.
(d) Nothing in this clause limits your rights under the Australian Consumer Law (see clause 9).
5. Acceptable Use
(a) The Website and the Service must only be used for lawful purposes. You must not use the Website or the Service:
(i) to engage in any act that disrupts the access, availability or security of the Service, including tampering with, reverse-engineering or hacking our systems; modifying, disabling or compromising the performance of the Service; overwhelming or attempting to overwhelm our infrastructure with an unreasonably large load; or probing, scanning or testing the vulnerability of our systems without our express written permission;
(ii) for any illegal purpose, or in violation of any applicable law, including data, privacy and export control laws;
(iii) to misrepresent or defraud anyone, including by phishing, spoofing, impersonation, or falsely implying sponsorship by or association with us or any third party; or
(iv) in an automated or bulk manner, including by scripts, bots, scraping or bulk submission, or to circumvent any rate or usage limit we apply.
(b) We may apply and change rate and usage limits for the Service, and may suspend or deny access to the Service to any user who breaches this clause, acting reasonably.
6. Intellectual Property
(a) The Website and the Service, including all text, graphics, logos, code, design elements and interactive features, are owned by or licensed to us and are protected by copyright and other intellectual property laws of Australia and international treaties. All trademarks, service marks and trade names used on the Website are owned by or licensed to us.
(b) We grant you a worldwide, non-exclusive, royalty-free, revocable licence to use the Website and the Service in accordance with these Terms, including caching and printing pages for your own personal or internal business use. All other rights are reserved.
(c) If you send us feedback, suggestions or ideas about the Service, we may use them for any purpose, without restriction, payment or any obligation to you.
(d) We may derive de-identified, aggregated statistics from use of the Service. These statistics do not identify you; we own them and may use them, including to improve and promote the Service.
7. Privacy
Your personal information is handled in accordance with our Privacy Policy, available on the Website.
8. Third-Party Links and Services
The Website may contain links to, or information about, third-party websites, products and services. We do not own, operate, control or endorse those third parties, we are not a party to any dealing between you and them, and we are not responsible for their content, availability, pricing or conduct.
9. Australian Consumer Law
(a) Our Service comes with guarantees that cannot be excluded under the Australian Consumer Law.
(b) Nothing in these Terms excludes, restricts or modifies any guarantee, warranty, condition, right or remedy conferred by the Australian Consumer Law or any other applicable law that cannot lawfully be excluded, restricted or modified, or any liability under them. Everything else in these Terms — including clauses 10, 11 and 12 — applies subject to this clause.
(c) If you use the Service as a consumer from outside Australia, you may also have rights under mandatory consumer protection laws of your country of residence. Nothing in these Terms affects those rights.
10. General Disclaimer
Subject to clause 9, and to the maximum extent permitted by law:
(a) the Website and the Service are provided "as is" and "as available", and all terms, guarantees, warranties, representations and conditions not expressly stated in these Terms are excluded; and
(b) we make no warranty that the Service will be uninterrupted, secure, error-free or free of viruses, or that defects will be corrected.
11. Limitation of Liability
Subject to clause 9, and to the maximum extent permitted by law:
(a) neither party is liable to the other for any special, indirect or consequential loss or damage, loss of profit or opportunity, loss of data, or damage to goodwill arising out of or in connection with the Service or these Terms — except to the extent such loss or damage is reasonably foreseeable and results from our failure to meet an applicable consumer guarantee, or otherwise cannot lawfully be excluded;
(b) each party's liability for any loss is reduced to the extent that the loss was caused or contributed to by the other party, including by a failure to take reasonable steps to mitigate it;
(c) our total aggregate liability arising out of or in connection with the Service or these Terms, however arising (contract, tort including negligence, equity, statute or otherwise), is limited to AUD $100; and
(d) the exclusions and limitations in clauses 10 and 11 also apply for the benefit of our officers, employees, agents and contractors.
12. Indemnity
You indemnify us and our officers, employees, agents and contractors against loss, damage, liability, cost and expense (including reasonable legal costs) suffered or incurred by us to the extent caused by your breach of these Terms or your unlawful use of the Service, except to the extent the loss was caused or contributed to by our breach of these Terms, our negligence or our unlawful act, in which case your liability under this clause is reduced proportionally.
13. Termination
(a) You may stop using the Service at any time.
(b) We may suspend or terminate your access to the Service:
(i) immediately, if you materially breach these Terms or use the Service unlawfully; or
(ii) otherwise, on reasonable notice to you.
(c) Termination does not affect rights accrued before termination, and clauses 3, 4, 6, 9, 10, 11, 12 and 14 survive termination.
14. General
(a) Governing law and jurisdiction. These Terms are governed by the laws of Victoria, Australia. Each party submits to the non-exclusive jurisdiction of the courts of Victoria and courts competent to hear appeals from them.
(b) Events beyond our control. We are not liable for any delay or failure in performing our obligations under these Terms to the extent the delay or failure is caused by circumstances beyond our reasonable control.
(c) Severance. If any part of these Terms is void or unenforceable, it is severed and the rest of the Terms remain in force. Where a part is unenforceable only in a particular jurisdiction, it is read down or severed for that jurisdiction only.
(d) No waiver. A failure to enforce a provision of these Terms is not a waiver of it.
(e) Assignment. We may assign our rights under these Terms as part of a sale or restructure of our business; you may not assign yours without our consent (not to be unreasonably withheld).
15. Contact Us
Questions about these Terms: legal@subnetexpert.com