Migration guide

Can you migrate Sitefinity to Optimizely?

Last updated: July 2026 · By the Replatform Radar team — specialists in pre-migration CMS content audits

Yes — Sitefinity to Optimizely is a natural .NET-to-.NET consolidation, and it is one of the cleaner enterprise migrations because both platforms share the same underlying stack, the same content-type mindset, and the same block-based page composition model. Sitefinity widgets map closely to Optimizely blocks, and Sitefinity dynamic modules map to Optimizely content types, so the conceptual translation is mostly one-to-one. The heavy lifting is rebuilding the presentation layer (MVC/Razor or Web Forms widget templates become Optimizely MVC/Razor views or CMS 12 view components) and re-implementing personalization and forms in Optimizely's equivalents. Expect a rebuild of templates and integrations rather than a lift-and-shift, but the data modeling effort is comparatively low.

Sitefinity (Progress) and Optimizely (formerly Episerver) are both traditional coupled .NET CMS platforms that render server-side and store structured content behind an authoring UI. Sitefinity organizes content into pages composed of widgets, page templates, and reusable content types plus dynamic modules for custom structured data. Optimizely organizes content into strongly typed content types and blocks, where a page type is a C# class and blocks are the reusable composable units placed into content areas. Because both are class-first, code-driven CMSes, teams migrating between them are translating one .NET content model into another rather than crossing a paradigm boundary.

The practical work concentrates on three areas: modeling, presentation, and platform services. Sitefinity dynamic modules and content types are re-expressed as Optimizely content types and block types with matching properties; Sitefinity page templates and layouts become Optimizely page types and layout partials; and Sitefinity widgets become Optimizely blocks with their own render templates. Cross-cutting features — search, forms, personalization, multilingual/localization, and any custom Sitefinity APIs — need their Optimizely equivalents wired up (Optimizely Search & Navigation or Graph, Optimizely Forms, visitor groups). Content itself is typically exported and imported via a scripted job against the Optimizely Content API or Service API rather than a native connector, since no first-party Sitefinity-to-Optimizely importer exists.

In your report — not a generic checklist

The Sitefinity → Optimizely detail, catered to your site

A pre-migration scan produces a report tailored to this exact transfer, covering the parts that decide whether the project goes smoothly:

How Sitefinity and Optimizely compare across the dimensions that matter for a migration
The field-mapping table — what each Sitefinity construct becomes in Optimizely
The Sitefinity to Optimizely-specific gotchas that silently cause data loss, broken links, and ranking drops
Realistic timeline & cost drivers for this migration
Your own site’s findings scored against all of it

Scan my site for this migration →

FAQ

Sitefinity to Optimizely: frequently asked questions

Is Sitefinity to Optimizely a hard migration?

No, it is one of the easier enterprise CMS migrations because both are .NET, class-first, block-based platforms. The content model translates almost one-to-one (dynamic modules to content types, widgets to blocks); the real effort is rebuilding presentation templates and re-wiring search, forms, and personalization.

Can I automatically migrate Sitefinity content to Optimizely?

There is no first-party connector, so content migration is a scripted job. Teams export Sitefinity content (via its API or database) and import it through the Optimizely Content API or Service API, mapping fields programmatically. The pipeline is custom but straightforward given both models are structured.

Do Sitefinity widgets work in Optimizely?

No, Sitefinity widgets do not run in Optimizely, but they map conceptually to Optimizely blocks. Each widget becomes a block type with its render logic rebuilt as an MVC/Razor view; the composition idea (dropping reusable units onto a page) carries over directly.

Does personalization carry over from Sitefinity to Optimizely?

No, personalization does not transfer automatically. Sitefinity segments and rules have no export path into Optimizely visitor groups, so every targeting rule must be re-created and re-tested by hand. Budget QA time specifically for validating personalized experiences post-migration.