Umbraco vs Kentico

Umbraco and Kentico both land on Depends.

Umbraco

Depends

Confidence: High

Buy it if you have .NET developers and need a flexible, multi-site or headless CMS . the open-source core is free and battle-tested.

Depends

Confidence: Medium

Buy if you're a mid-market or enterprise .NET organization that needs CMS, digital marketing, and commerce in one platform with partner support.

Umbraco versus Kentico
Compare	Umbraco	Kentico
Verdict	Depends	Depends
Best for	.NET developer teams	Mid-market and enterprise .NET orgs
Who it's not for	No-code marketers wanting a DIY site builder	Small teams needing a simple site . massive overkill
Privacy	Actively patched open-source CMS with several published CVEs in 2025-2026; fixes ship via advisories.^⁷	Four CVEs disclosed in 2025, including an auth bypass reported exploited in the wild; version currency and fast patching are essential.
Support quality	Paid support sold; Cloud complaints on Reddit	In-house support advertised; partners do implementations
Public sentiment	G2 users praise flexibility and long-term value, while Reddit opinion splits sharply on Umbraco Cloud hosting.	Reviewers call Kentico a robust, feature-rich .NET DXP but flag an outdated UI and quote-based pricing, with sentiment on G2 and TrustRadius skewing positive.¹⁵
Biggest gotcha	Reddit thread titled 'Umbraco Cloud - Avoid like the plague' targets the hosting, not the CMS^⁴	No public pricing; quote-based licenses plus paid partner implementations drive real cost