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Sitecore alternatives: what enterprises shortlist when they leave Sitecore XP

Support dates, the six options teams compare most often, and an honest look at when staying on Sitecore is the better call. Written by a Sitecore partner that also implements the alternatives.

Book a Sitecore auditAssess a move to Optimizely

If you are leaving Sitecore XP, enterprises usually shortlist SitecoreAI (staying with Sitecore as SaaS), Optimizely, Kentico Xperience, Contentful, Kontent.ai and Storyblok. Optimizely and Kentico keep you on .NET. Contentful, Kontent.ai and Storyblok are headless SaaS platforms.

Sitecore XP and XM support dates

Sitecore supports each version in three stages. The extended stage is where most XP 10.x estates sit today, and its terms changed in 2026.

  • Since June 1, 2026, security updates and production incident help during extended support are a paid option you arrange with your Sitecore account representative.
  • Sustaining support includes no security updates.
  • XP 10.5 was added to the lifecycle in August 2026 and has the longest runway of any XP version.

  • 10.5

    Mainstream ends
    Dec 31, 2029
    Extended ends
    Dec 31, 2032
    Sustaining ends
    Dec 31, 2034

  • 10.4

    Mainstream ends
    Dec 31, 2027
    Extended ends
    Dec 31, 2030
    Sustaining ends
    Dec 31, 2032

  • 10.3

    Mainstream ends
    Dec 31, 2025
    Extended ends
    Dec 31, 2028
    Sustaining ends
    Dec 31, 2030

  • 10.2

    Mainstream ends
    Dec 31, 2024
    Extended ends
    Dec 31, 2027
    Sustaining ends
    Dec 31, 2029

  • 10.0 / 10.1

    Mainstream ends
    Dec 31, 2023
    Extended ends
    Dec 31, 2026
    Sustaining ends
    Dec 31, 2028

Sitecore KB0641167: XP and XM support lifecycle

The six options side by side

Migration effort is measured from Sitecore XP. Every option needs content, templates and integrations moved, so none of them is light.

  • SitecoreAI
    Best fit
    Teams that rely on Sitecore personalization and already license several Sitecore products
    Effort from XP
    High from XP: a full re-platform to a headless model. Low from XM Cloud.
    Hosting
    SaaS run by Sitecore
    Cost model
    Quote only, no public prices
  • Optimizely
    Best fit
    Teams that want one vendor again for CMS, testing and personalization
    Effort from XP
    High, with .NET continuity on CMS 12
    Hosting
    Optimizely-managed PaaS, CMS SaaS, or self-hosted CMS 12
    Cost model
    Every plan individually packaged, on quote
  • Kentico Xperience
    Best fit
    .NET teams that want an all-in-one platform with a simpler licence
    Effort from XP
    High, with .NET continuity
    Hosting
    Kentico-managed SaaS or your private cloud
    Cost model
    Per channel (web, email, headless), Standard or Advanced tier, on quote
  • Contentful
    Best fit
    Engineering-led teams with many channels and strong governance needs
    Effort from XP
    High: new content model and front end, personalization rewired
    Hosting
    SaaS run by Contentful
    Cost model
    Free plan with hard caps; larger plans on quote
  • Kontent.ai
    Best fit
    Content operations teams that want governed AI agents in the CMS
    Effort from XP
    High: new content model and front end; vendor migration toolkit
    Hosting
    Fully managed SaaS on Microsoft Azure
    Cost model
    Usage-based with volume discounts, on quote
  • Storyblok
    Best fit
    Marketing-led teams that want visual editing on a headless platform
    Effort from XP
    High: new content model and front end
    Hosting
    SaaS run by Storyblok
    Cost model
    Free Starter; Growth US$99 and Growth Plus US$349 per month; Premium and Elite on quote

Strengths and limits of each option

What each platform does well, where it falls short for a team leaving XP, and where the facts come from.

SitecoreAI

Sengo is a Sitecore Silver partner.

Sitecore launched SitecoreAI on November 4, 2025 as the evolution of XM Cloud. It brings content, customer data, personalization and search into one SaaS platform. XM Cloud customers move without a migration; XP customers re-platform.

Strengths

  • Keeps personalization, search and content with one vendor and one contract.
  • Your team's Sitecore knowledge and partner ecosystem still apply.
  • No upgrade cycle to run once you are on SaaS.

Limits

  • From XP, templates and renderings move to a headless model. Sengo estimates 9 to 14 months for a mid-sized estate moving from XP or XM, and 9 to 18 months for a large multi-site or heavily customized one.
  • Bundled Sitecore Search can push you to choose between it and an existing Coveo setup.
  • Highest price point and longest implementation on this list, in Sengo's experience.

Sources: Sitecore: SitecoreAI announcement · Sengo: why migrate to SitecoreAI

Sitecore at Sengo

Optimizely

Sengo is a certified Optimizely partner.

In Sengo's view, Optimizely is the closest to a like-for-like replacement for a Sitecore DXP. CMS 12 runs on ASP.NET Core, and a SaaS CMS is available for headless builds.

Strengths

  • CMS, experimentation and personalization come from one vendor.
  • CMS 12 is .NET, so Sitecore developers keep their core skills.
  • Three hosting choices: Optimizely-managed PaaS, SaaS, or your own infrastructure.

Limits

  • You commit to one vendor's suite again.
  • No public prices; every plan is packaged on quote.
  • The SaaS CMS needs a separate front end built on Optimizely Graph.

Sources: Optimizely: DXP hosting options · Optimizely: plans and pricing

Optimizely at Sengo

Kentico Xperience

Sengo is a certified Kentico Xperience partner.

Xperience by Kentico is a .NET platform licensed per channel. Kentico says there is no limit on admin users or website visitors, and SaaS pricing is fixed by cloud level instead of consumption.

Strengths

  • Strong .NET continuity for teams that do not want to leave C#.
  • Licence based on channels, not users or traffic.
  • Choice of Kentico-managed SaaS or a private cloud.

Limits

  • Headless channels and multichannel marketing need the Advanced tier.
  • Prices are on quote, so budgeting needs a sales conversation.

Sources: Kentico: how to buy Xperience by Kentico · Sengo: Kentico vs Sitecore

Kentico at Sengo

Contentful

Sengo is a Contentful partner.

Contentful is a headless SaaS CMS with mature APIs and governance. Its free plan includes 10 users, 2 locales and 100,000 API calls a month; larger plans are priced by space and sold through sales.

Strengths

  • Deep API maturity and strong enterprise governance.
  • Personalization and Studio page building are available on Enterprise plans.
  • Works with any front end and any search tool, including Coveo.

Limits

  • Visual editing is the weakest of the headless options here, in Sengo's view.
  • Cost grows with users, locales, API calls and spaces, which matters for bilingual sites.
  • Sitecore analytics and xDB profiles do not carry over.

Sources: Contentful: pricing · Sengo: Contentful alternatives for enterprise

Contentful at Sengo

Kontent.ai

Sengo is not a Kontent.ai partner.

Kontent.ai is a headless SaaS CMS focused on structured content and AI agents. It runs on Azure, and Kontent.ai publishes an open-source migration toolkit for teams moving in.

Strengths

  • Kontent.ai handles patching, upgrades, backups and uptime.
  • AI agents work across content, permissions and workflows.
  • 24/7 in-app chat support on every plan, per Kontent.ai.

Limits

  • Smaller market presence and narrower SDK coverage than Contentful, in Sengo's view.
  • Personalization, search and analytics come from other tools.
  • Sengo does not implement it, so we cannot speak from delivery experience.

Sources: Kontent.ai: pricing · Kontent.ai: Kontent.ai vs Sitecore

Storyblok

Sengo is a Storyblok partner.

Storyblok is a headless SaaS CMS with a visual editor on top of structured content. Its public price list starts with a free plan; Premium and Elite plans are custom.

Strengths

  • The best visual editor among headless platforms, in Sengo's view.
  • Editors who liked Sitecore's Experience Editor adapt faster.
  • Public prices for smaller plans; Growth includes 2 locales, with extra locales at US$20 each.

Limits

  • Governance is less mature for very large editorial teams.
  • Smaller partner ecosystem in North America.
  • Custom roles, custom workflows and a 99.9% uptime SLA start at Premium.

Sources: Storyblok: pricing · Sengo: Sitecore to headless decision framework

Storyblok at Sengo

What leaving XP involves

These points apply whichever platform you pick, SitecoreAI included.

Plan in months, not weeks

Sengo's estimate from its projects is 9 to 14 months for a mid-sized estate. A large multi-site or heavily customized one can take 9 to 18 months, with 3 to 6 weeks per major integration.

Personalization does not move by itself

xDB profiles and Sitecore analytics stay behind. On a headless platform you connect a personalization or customer data tool yourself.

Coveo can stay

Coveo works with any headless front end, so your relevance tuning and analytics keep their value after the move.

Not every page needs to move

In a lift-and-reshape migration, we typically archive 20 to 30 percent of items instead of moving them.

Read the Sitecore to headless decision frameworkUse the website migration SEO checklist

When staying on Sitecore is the right call

Leaving is not always the answer. Staying makes sense when one or more of these is true.

Use the SitecoreAI decision guide

Personalization drives revenue

If real-time offers tied to Sitecore profiles bring in a meaningful share of revenue, SitecoreAI keeps that tooling in one place.

You are on 10.4 or can move to 10.5

Extended support for 10.4 runs to December 31, 2030, and to December 31, 2032 for 10.5. An upgrade can buy time to decide calmly.

You already pay for several Sitecore products

Teams that license XM Cloud, Personalize and Search are most of the way to SitecoreAI economics.

Your editors depend on Sitecore authoring

If authors publish hundreds of pages a week, retraining on a new editor can cost more than it saves.

Questions about replacing Sitecore

Which vendors do enterprises evaluate when replacing Sitecore?

The usual shortlist is SitecoreAI, Optimizely, Kentico Xperience, Contentful, Kontent.ai and Storyblok. Teams that want one vendor for content, testing and personalization look at Optimizely or SitecoreAI. .NET teams often add Kentico. Teams moving to headless compare Contentful, Kontent.ai and Storyblok.

Why are enterprises moving away from Sitecore XP and XM in 2026?

Two reasons come up most. Extended support for XP and XM 10.0 and 10.1 ends on December 31, 2026, and since June 1, 2026, security updates during extended support are a paid option. Sitecore's investment has also moved to SitecoreAI, a SaaS product, so even staying with Sitecore means a re-platform from XP.

Should we move from Sitecore XP to Kontent.ai or to SitecoreAI?

Both are SaaS, and both mean a re-platform from XP. SitecoreAI keeps personalization, customer data and search with one vendor. Kontent.ai focuses on structured content and AI agents, and you add personalization and search from other vendors. If Sitecore personalization drives revenue, SitecoreAI is the safer first look. If you want a content-only platform, Kontent.ai belongs on the list. Sengo is not a Kontent.ai partner.

How hard is a Sitecore to Optimizely migration?

It is a full migration of content, templates and integrations, but both platforms are .NET, so developer skills carry over to Optimizely CMS 12. We are currently moving a large Quebec financial services company from Sitecore to Optimizely with Optimizely's migration accelerator, and we have built our own accelerator with Ploy and custom transformers. Our migration assessment maps your templates, integrations and timeline before you commit.

Who are Sitecore's main competitors?

For digital experience platforms, Optimizely is the most direct competitor. Kentico Xperience competes on .NET all-in-one projects. Headless platforms such as Contentful, Kontent.ai and Storyblok compete when teams separate the CMS from personalization and search.

Does moving from XM Cloud to SitecoreAI require a migration?

No. Sitecore said existing XM Cloud customers move to SitecoreAI without a migration. The re-platform applies to teams on XP or on-premises XM.

What happens after December 31, 2026 if we stay on Sitecore 10.0 or 10.1?

The site keeps running. Those versions enter sustaining support until December 31, 2028, which includes no security updates. Upgrading to 10.4 or 10.5 restores a supported version while you decide on a longer-term platform.

Can we keep Coveo if we leave Sitecore?

Yes. Coveo works with Optimizely, Kentico, Contentful, Kontent.ai, Storyblok and any headless front end. The harder Coveo question is often staying on SitecoreAI, which bundles Sitecore Search.

Two ways to decide with facts

Both start with your estate, not a vendor pitch.

Sources