When $800 billion in software value vanished in five days this February, the conversation focused on the obvious targets. CRM platforms. Productivity suites. Project management tools. Analysts pointed to Salesforce, Atlassian, ServiceNow. The Retool report showed 35% of enterprises already replacing SaaS tools — workflow automation, admin dashboards, BI tools.
But there’s a SaaS product that almost nobody includes in the replacement conversation, even though it sits at the center of every company’s digital presence: your CMS.
HubSpot Content Hub (formerly CMS Hub, renamed by HubSpot in April 2024). WordPress.com. Webflow. Sitecore. Adobe Experience Manager. These are SaaS products. They charge you recurring fees. They store your data in proprietary formats. They control your hosting. They raise prices annually. And they’re subject to every structural force that’s driving the broader SaaS reckoning: seat compression, AI disruption, open-source maturation, and the build-vs-buy inversion.
Your CMS isn’t exempt from the SaaSpocalypse. It’s next in line.
Does your CMS have the same problems as every other SaaS platform?
The forces Bain & Company identified in their SaaSpocalypse analysis apply directly to CMS platforms:
Rising costs with diminishing returns. HubSpot Content Hub Enterprise costs $18,000/year. That’s the CMS alone — most companies on the platform are also paying for Marketing Hub ($43,200/year Enterprise) and Sales Hub ($1,440/seat/year annual, 10-seat minimum on Enterprise). HubSpot’s published renewal rate is 5% annually, but seat additions and contact tier creep typically push the effective increase to 8–12% (in line with industry SaaS averages of 8.7–11.4% YoY, VendorBenchmark 2026). You’re paying more every year for a CMS that fundamentally does the same thing it did five years ago.
Per-seat pricing under pressure. The model that Bain flagged as the core vulnerability of the SaaS business model: per-seat recurring revenue is exactly how HubSpot, Sitecore, and Adobe price their CMS products. When AI agents can create, edit, and optimize content programmatically, the per-seat model for content management makes even less sense than it does for CRM.
Proprietary lock-in that compounds over time. Every template, page module, and landing page design your team builds in HubSpot CMS is written in HubL, a proprietary language that exists nowhere else. That investment is non-transferable. If you leave, you start over. If you stay, the sunk cost grows every quarter. This is the same lock-in dynamic that’s driving enterprises away from Salesforce, a walled garden where the exit price rises the longer you’re inside. The CMS world just hasn’t caught up yet.
Bolt-on AI that underwhelms. HubSpot’s AI offering, Breeze, follows the same pattern as Salesforce Einstein and ServiceNow’s AI agents. It’s AI layered on top of a platform designed before AI existed. It can help write a paragraph or suggest a subject line. But it can’t change how your site actually performs, personalizes, or converts, because the platform underneath wasn’t designed for it.
Replacing your CMS is actually simpler than replacing your CRM, your project management tool, or your productivity suite.
Why is the CMS actually the easiest SaaS product to replace?
Here’s the counterintuitive part: replacing your CMS is actually simpler than replacing your CRM, your project management tool, or your productivity suite.
Your CRM touches sales processes, pipeline reporting, customer data, integrations with billing and support. It’s deeply embedded in daily operations. The switching cost is real and the disruption is significant.
Your CMS stores content and renders web pages. It’s important, but the operational surface area is smaller. Your blog posts, landing pages, and marketing pages are content. Content can be migrated. Pages can be rebuilt. Redirects can be mapped. SEO rankings can be preserved.
The migration from HubSpot CMS to a modern headless CMS + framework is a well-understood process that takes weeks, not months, and the ROI begins immediately because you stop paying the legacy platform’s license fee the day you switch.
This is why the CMS is often the first SaaS product companies replace when they start decomposing their monolithic stack. The return is fast, the risk is manageable, and the improvement is visible from day one.
What does the CMS replacement look like?
The alternative to a monolithic SaaS CMS isn’t “no CMS.” It’s a modern stack that unbundles the monolith into components you own and control:
Content management → A headless CMS (Sanity, Payload, Contentful) that stores your content as structured data your team edits in a clean, visual interface, without dictating your design, your hosting, or your pricing.
Website rendering → An open-source framework (Next.js or Astro) built in JavaScript/TypeScript — the largest talent pool in software development. Your site runs faster than any monolithic CMS can deliver, with full control over design, SEO, and user experience.
Hosting → Usage-based hosting (Vercel, Cloudflare, or Netlify) that serves your site globally. Typical cost: $0–$1,200/year for a marketing site — compared to $5,400–$18,000/year for Content Hub Professional through Enterprise (hosting bundled). You pay for what you use, not for a seat count.
AI layer → Because you own the connections between these components, AI agents can read content, generate new pages, personalize in real time, run A/B tests, and optimize performance, without waiting for a vendor to ship a feature. The capability ceiling is yours to set, not your vendor’s.
Each piece is best-in-class at its specific job. Each piece is replaceable independently. And the total cost is a fraction of the monolithic alternative.
What does a CMS cost you over five years?
The most persuasive argument for replacing your CMS isn’t the architecture. It’s the math.
Scenario: Mid-market company with a 30-page marketing site, blog, and resource center. This is a pure CMS swap (Model A — Content Hub only, keeping Marketing Hub and Sales Hub if you use them).
| HubSpot Content Hub Enterprise | Modern Stack (Astro + Sanity + Vercel) | |
|---|---|---|
| Year 1 | $18,000 license + ~$50K build | ~$1,200 hosting + ~$60K build |
| Year 2 | $19,440 (8% effective increase) | ~$1,800 |
| Year 3 | $20,995 | ~$2,000 |
| Year 4 | $22,675 | ~$2,200 |
| Year 5 | $24,489 | ~$2,400 |
| 5-year platform cost | ~$105,600 | ~$9,600 |
| 5-year total (incl. build) | ~$155,000 | ~$70,000 |
That’s roughly $85,000 in savings over five years on a pure CMS swap. And the modern stack site is faster, more flexible, fully owned, and AI-native.
If you factor in developer maintenance for the modern stack at $2,000/month ($120K over 5 years), the modern stack total climbs to $190K — but that maintenance buys you continuous improvement, AI feature development, and performance optimization, not just keeping the lights on. HubSpot users typically pay a comparable retainer to a HubSpot partner anyway ($24,000–$60,000/year per our real cost breakdown), so the comparison stays in favor of the modern stack once support is normalized.
The counter-argument: HubSpot’s price includes marketing tools, not just the CMS. Fair, but Content Hub Enterprise is priced separately from Marketing Hub Enterprise ($43,200/year) and Sales Hub Enterprise ($1,440/seat/year). The CMS cost is additive, not inclusive. If you’re escaping the full HubSpot suite, the 5-year savings climb from this article’s $85K (CMS-only) into the $300,000–$400,000 range (see The Real Cost of HubSpot for the full-suite math).
Methodology: the HubSpot 5-year figure uses an 8% annual escalator — the midpoint of HubSpot’s published 5% renewal rate and typical SaaS industry averages (8.7–11.4% YoY, VendorBenchmark 2026). Effective customer increases of 8–12% are common once seat and contact tier creep are included.
How does a legacy CMS hold back your AI readiness?
Beyond cost, the CMS replacement is increasingly driven by AI readiness.
Deloitte found that over 40% of agentic AI projects will fail by 2027 because they’re built on legacy systems that lack modern APIs and modular architecture. Your CMS is one of those legacy systems.
A modern CMS is AI-ready by default because your content is accessible through open interfaces. That means AI agents can:
- Power smarter search and recommendations — driving visitors to the right content without manual tagging
- Generate and update content at scale — creating drafts, updating pages, producing A/B variants without bottlenecking your team
- Identify gaps and opportunities — surfacing what’s underperforming, what’s missing, and where to invest next
- Personalize in real time — adapting content to each visitor’s role, industry, and behavior to increase conversion
On HubSpot, AI means Breeze. One vendor’s roadmap, a black box, using their models, marking up AI costs. On a modern CMS, AI means whatever delivers the most value to your business, because you control the ceiling.
None of this requires your CMS vendor to ship an AI feature. Your content is open to any AI tool you choose, today and in the future. You’re not waiting on a vendor’s product roadmap to unlock capabilities your competitors already have.
On HubSpot, AI means Breeze. One vendor’s roadmap, a black box, using their models, marking up AI costs. On a modern CMS, AI means whatever delivers the most value to your business, because you control the ceiling.
This is the same pattern playing out across enterprise software: platforms built before AI can bolt it on, but they can’t match platforms built for it. The 72% of enterprises piloting agentic AI (Mayfield, 2026) aren’t piloting it on legacy CMS platforms. They’re piloting it on infrastructure they own.
When should you stay on your current CMS? (Honest assessment)
Replacing your CMS isn’t the right move for every company. The honest evaluation:
Stay on HubSpot CMS if:
- Your company has fewer than 10 employees and uses HubSpot for everything (CRM, marketing, sales, CMS) as a tightly integrated suite
- Your annual CMS spend is under $10,000 and you’re not experiencing price pressure
- Your website is simple (under 20 pages), doesn’t need high performance, and doesn’t need AI capabilities
- Your team has no access to developers and the HubSpot template marketplace meets your needs
- You’re not planning significant digital investment in the next 2–3 years
Consider replacing your CMS if:
- Your annual CMS/platform spend exceeds $15,000 and is rising
- You’re experiencing performance issues (slow load times that cost you conversions)
- You want AI capabilities beyond what your vendor’s bolt-on offers
- You’ve felt the friction of template limitations, proprietary formats, or platform constraints
- You’re already questioning your SaaS stack more broadly
- You’re planning a site redesign (this is the natural moment to switch frameworks)
Why is the CMS the starting point?
The broader SaaS replacement trend that Retool documented — 35% of enterprises replacing tools, 78% planning to build more — isn’t happening all at once. Companies are decomposing their monolithic stacks piece by piece, starting with the tools where the replacement is clearest and the return is fastest.
The CMS is that starting point for most companies. The alternatives are proven. The migration is well-understood. The cost savings begin immediately. And the foundation you build — infrastructure you own, content you control, AI you can actually use — becomes the platform for everything that comes next.
The SaaSpocalypse isn’t just about CRM, productivity, and enterprise software. It’s about every monolithic SaaS product — including the one your website runs on.
The question is whether you’re going to wait for your CMS vendor to raise prices one more time, or start building what comes next.
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