Sustainable Substitutes for Azure CDN

A CDN by Microsoft with resilience issues and privacy concerns.

azure-cdn logo

Reasons to avoid Azure CDN

Avoid Azure CDN to reject Microsoft’s cloud monopoly and its opaque, centralised control over digital infrastructure. Its data centers rely on non-renewable energy, while its labour practices and lack of transparency in outages raise ethical concerns. Bundling with Azure services further locks users into Microsoft’s ecosystem.

Escape the Microsoft cloud ecosystem and use a more ethical alternative to Azure CDN.

Ethical and Sustainable Azure CDN Alternatives

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  • Feasibility: How easily can the average user switch to this substitute? Higher feasibility results in a higher ranking.
  • Editor's Rating: How sustainable is the substitute? The more sustainability attributes it fulfils, the higher it is ranked.

OVHcloud CDN

OVHcloud is a French cloud hosting provider with a strong focus on privacy and data sovereignty.

OVHCloud provides tools like the Environmental Impact Tracker to help customers understand and reduce their carbon footprint.
OVHCloud targets 100% low-carbon energy (mostly nuclear though) for data centers by 2025, with 92% already achieved.
OVHCloud does not collect or sell user data, ensuring privacy and security.
OVHCloud offers dedicated and private cloud solutions, giving users full control over their data and infrastructure.
OVHCloud commits to data privacy and does not use third-party cookies or trackers.
OVHCloud repurposes industrial buildings for data centers and focuses on circular economy practices to minimize e-waste.
OVHCloud is based in France, ensuring compliance with GDPR and European privacy and labor regulations.
Website
bunny-cdn logo

Bunny CDN

A fast CDN from Slovenia with over a hundred locations worldwide.

Bunny CDN explicitly states that it does not collect, store, or distribute user-identifiable information. They only gather anonymous data for performance optimisation and have a zero-logging policy for certain services like Bunny Fonts.
Bunny CDN is GDPR-compliant and prioritises user privacy and data protection.
Bunny CDN is based in Slovenia and operates data centres in Europe and globally.
Website

KeyCDN

A high-performance Content Delivery Network from Switzerland.

KeyCDN is headquartered in Switzerland and operates data centres across Europe.
KeyCDN adheres to GDPR principles, including data minimisation, lawfulness, fairness, and transparency. They collect only necessary data for security and fraud prevention and allow users to request deletion of personal data.
KeyCDN is GDPR compliant with strong data protection.
Website

The 7 main issues with Azure CDN

Big Tech - Big Tech companies do not nourish people and planet. This is especially true in times of political tension.

Microsoft is one of the largest tech companies, contributing to market monopolization and locking users into proprietary, cloud-dependent ecosystems. Source: heise online: Germany falls into the data trap in the Microsoft cloud

Exploitative Labour Practices - Poor working conditions and low wages for workers involved in production or services.

Microsoft has faced criticism for poor working conditions and inadequate wages in its supply chain, including data center operations and hardware production. Source: Wikipedia: Criticism of Microsoft

Lack of Transparency - Opacity in operations, data handling, or supply chains, making it difficult for users to understand practices.

Microsoft claims to enable GDPR compliancy with its EU located servers, but the US CLOUD act stands in direct conflict to these claims.Heise: Microsoft's sovereignty debacle: Between "flowery advertising" and "no panic" (2025)

Tax Avoidance - Aggressive strategies are being deployed to avoid paying taxes.

Microsoft is known for using aggressive tax avoidance schemes and has been fined for it. Source: The Guardian: This article is more than 11 years old US tech giants launch fierce fightback against global tax avoidance crackdown (2015)

Support of Authoritarian Regimes - Companies actively supporting, financing and legitimising regimes and unethical policies.

Microsoft is financing Donald Trumps plans to create a new ballroom in the white house, hoping to benefit from upcoming laws. Microsoft CEO Satya Nadella donated $1 Million to Trumps inauguration fund.Sources: OpenSecrets: Trump ballroom donors poised to benefit from AI plan they helped shape (2026)The Verge: Tech’s shift to Trump: all the companies and execs kissing the ring (2025)

AI Bloat - Service has unnecessary or harmful AI features.

Microsoft’s Azure CDN is integrated with Azure’s AI services, which are resource-intensive and contribute to AI bloat. The company’s push into AI has increased demand for compute and energy.Source: ZDNET: Microsoft 365 Copilot AI tool headed to OneNote. Here's what it can do for you (2023)

Greenwashing - Misleading consumers about the environmental impact or sustainability of products or services.

Microsoft uses RECs to claim its data centers, including those powering Azure CDN, are 100% renewable, but its reliance on grids that still burn fossil fuels and its partnerships with oil and gas companies (e.g., Chevron) undermine these claims.Source:Wired: Amazon, Google, Microsoft: Here's Who Has the Greenest Cloud (2019)

Suggestions and Feedback

If you have suggestions for more alternatives or general feedback, please contact me via email or create an issue over on Codeberg. Suggest Substitute on Codeberg Write an Email