CMS comparison Optimizely CMS vs Progress Sitefinity

Optimizely CMS vs Progress Sitefinity

Optimizely CMS is a closed-source enterprise DXP that you can host yourself or run on the vendor's cloud. Progress Sitefinity is a closed-source enterprise DXP that you can host yourself or run on the vendor's cloud. The table below sets them side by side on 28 features. They get a different status on 7.

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Optimizely CMS Enterprise DXP · Closed source · 22 of 28 built in
Progress Sitefinity Enterprise DXP · Closed source · 22 of 28 built in

Sources checked: Optimizely CMS on 29 Sept 2026, Progress Sitefinity on 29 Sept 2026. Plans and releases can change after those dates.

WAYF is an official Payload partner and top contributor. Every platform in the table is classified by the same published definitions, and each answer lists the vendor page it came from.

Feature comparison

Built inPaid tierPlugin or add-onLimitedNot available

Optimizely CMS vs Progress Sitefinity feature comparison. Columns are the two platforms. Rows are features, grouped by area.
Platform	Optimizely CMS Enterprise DXP	Progress Sitefinity Enterprise DXP
Overview
What it is	Optimizely's .NET CMS for rendered and headless sites, hosted on Optimizely's DXP cloud or self-hosted, with Optimizely Graph for delivery.	Progress's .NET CMS and DXP for websites, run self-hosted or on the Sitefinity Cloud PaaS, with ASP.NET Core and Next.js renderers.
Edition compared The product and release each column describes.	Optimizely CMS 13 PaaS, the current flagship. CMS SaaS is a separate hosted variant. Version 13.1.3, released 9 Sept 2026	Sitefinity CMS 15.4 DX edition, self-hosted or on Sitefinity Cloud Version 15.4.8639, released 29 Sept 2026
Vendor	Optimizely optimizely.com	Progress Software progress.com
Licence	Closed source Proprietary	Closed source Proprietary
Hosting	Self-hosting Vendor cloud Self-hosted installs lose Opti ID features such as Opal and the DAM.	Self-hosting Vendor cloud
Built with	.NET 10, ASP.NET Core	.NET, ASP.NET Core and Next.js renderers
Database	SQL Server, Azure SQL on DXP	Microsoft SQL Server
Pricing Public list prices only. Hosting and implementation are extra everywhere.	No free option Pricing on request.	No free option Pricing on request. DX and DX+Enterprise editions, self-hosted or on Sitefinity Cloud.
Content modelling
Content model in code You define content types in files in your repository, review them like any other code and apply them from there. Imperative migration scripts alone count as limited.	Built in Content types as C# classes. 3	Built in Export for deployment writes module and field changes to files for source control. 3
Content model in the UI Admins can create and change content types and fields in the admin interface without writing code.	Built in Content types and properties in Settings. 4	Built in Module Builder.
Reusable blocks Editors compose pages from reusable, typed components or blocks, and can reorder them.	Built in Blocks in content areas and Visual Builder elements.	Built in Page editor widgets.
Localization Editors translate content per locale inside the CMS, by field or by entry, without a separate site for each language.	Built in Language branches per content item. 5	Built in Multilingual content per item.
Image transformations The CMS resizes, crops or converts images on request, through URL parameters or generated sizes, with no external service.	Built in DXP CDN resizes, crops and converts images by URL parameters. 6	Built in Resize through URL parameters and thumbnail profiles. 4
APIs and delivery
REST API A documented REST or JSON HTTP API returns content.	Built in Content Delivery API 13 and a management REST API. 1 2	Built in OData REST web services. 5
GraphQL API The vendor or an official module provides a GraphQL API for content.	Built in Optimizely Graph, included in the CMS 13 licence. 2 8	Built in GraphQL on the web services layer. 6
Webhooks The CMS can call an external URL when content is created, changed or published.	Limited Graph webhooks fire on sync batches and expired content only. Per-item hooks need code. 7 2	Built in Service hooks with a webhook action, available on all licences. 7
Renders the website The CMS itself renders and serves the public pages through themes or templates. Headless-only products answer no.	Built in ASP.NET Core MVC and Razor rendering, or headless. 2	Built in ASP.NET Core, Next.js or legacy MVC renderers. 1
Editorial workflow
Drafts Editors save changes as a draft and publish them later. The live version stays untouched until then.	Built in 9	Built in
Scheduled publishing An editor can set a future date and time for content to publish or unpublish.	Built in 9	Built in Scheduled publish and unpublish per item. 9
Version history The CMS keeps earlier versions of an entry, and editors can compare or restore them.	Built in	Built in Revision history.
Preview Editors can see unpublished content rendered as it will appear on the site before publishing.	Built in	Built in
Visual editing Editors can click on the rendered page and edit content in place or in a side panel next to it.	Built in Visual Builder. 2	Built in Page editor with widgets.
Approval workflows Content moves through review stages you configure, such as draft, review and approved, with permissions per stage.	Built in Approval sequences. 10	Built in One or two approval levels, or a custom workflow. 8
Content releases Editors group changes across several entries and publish them together as one release.	Built in Projects publish or schedule grouped items together. 11	Not available Publishing and scheduling work per item. 9
Real-time co-editing Two or more editors can work on the same entry at once and see each other's changes live.	Not available Comments and notifications only. 12	Not available Pages lock while another user edits them. 10
Access and governance
Custom roles Admins define their own roles with granular permissions instead of picking from a fixed set.	Built in Access rights for roles and virtual roles. 13	Built in 11
Field-level permissions Admins can restrict access to single fields, on top of content types and entries.	Not available Access rights apply per content item. Not documented per property. 13	Limited Module Builder types only, in the classic editing UI. Built-in content types have none. 12
Single sign-on Editors can sign in through SAML or OpenID Connect against a company identity provider.	Built in Opti ID with an external identity provider, or OpenID Connect in code. 2	Built in OpenID Connect and external providers such as Azure AD. 13
Audit log The CMS logs who changed what and when across the whole installation, and admins can review the log.	Built in Change Log in Settings. 14	Paid tier DX + Enterprise includes Audit Trail. Progress sells it as an add-on for DX. 14 2
Platform and extensibility
Multiple sites One installation or account can manage several separate websites or brands with shared users.	Built in Several sites and hosts in one installation. 15	Built in Multisite with shared content and per-site permissions. 15
Extensible admin UI Developers can add their own components, views or fields to the editing interface.	Built in Shell modules, gadgets and custom editor widgets. 16	Built in Custom fields, widgets and AdminApp extensions.
Plugin marketplace The vendor runs an official directory or marketplace of installable extensions.	Built in Optimizely connectors directory and NuGet add-ons. 17	Built in Sitefinity integrations directory. 16
Form builder Editors can build and publish forms and collect submissions without code.	Plugin or add-on Optimizely Forms package. No extra licence. 18	Built in Forms module with a drag-and-drop builder.
Site member accounts The platform handles sign-up and login for public site users or members, separate from editors.	Limited Visitor login uses ASP.NET Core authentication set up in code. 2	Built in Front-end users with registration and login widgets.
AI writing assistant A first-party AI feature in the editing interface generates, rewrites or translates content.	Plugin or add-on Opal, billed through Opal credits. Needs Opti ID on DXP. 2 19	Plugin or add-on Sitefinity AI subscription for text generation and agents. 17
Official MCP server The vendor publishes a Model Context Protocol server so AI agents can read or write content.	Built in MCP server in the Optimizely.Cms.Opal.Tools package. 20	Plugin or add-on Sitefinity MCP Server, 15.4.8633 or later, needs a Sitefinity AI subscription. 18

Optimizely CMS sources

Checked 29 Sept 2026. Optimizely CMS 13 PaaS, the current flagship. CMS SaaS is a separate hosted variant..

Progress Sitefinity sources

Checked 29 Sept 2026. Sitefinity CMS 15.4 DX edition, self-hosted or on Sitefinity Cloud.

Considering more platforms? Compare Optimizely CMS and Progress Sitefinity with the rest of your shortlist in the CMS comparison tool.

Where they differ

Optimizely CMS and Progress Sitefinity get a different status on 7 of the 28 features and the same status on 21. Optimizely CMS has 22 built in on its baseline edition, Progress Sitefinity has 22. Two matching statuses can still name different paid tiers or limits, so read the notes in the table before treating a row as equal.

Built in on Optimizely CMS, a different answer on Progress Sitefinity 3

Content releases Optimizely CMS: Built in. Progress Sitefinity: Not available.
Audit log Optimizely CMS: Built in. Progress Sitefinity: Paid tier.
Official MCP server Optimizely CMS: Built in. Progress Sitefinity: Plugin or add-on.

Built in on Progress Sitefinity, a different answer on Optimizely CMS 3

Webhooks Optimizely CMS: Limited. Progress Sitefinity: Built in.
Form builder Optimizely CMS: Plugin or add-on. Progress Sitefinity: Built in.
Site member accounts Optimizely CMS: Limited. Progress Sitefinity: Built in.

Built in on neither, with different answers 1

Field-level permissions Optimizely CMS: Not available. Progress Sitefinity: Limited.

More comparisons

Full write-ups with worked examples and costs: Optimizely CMS vs Payload.

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Progress Sitefinity against other platforms

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