This guide gives you a transparent breakdown of enterprise replatforming costs and the returns to expect. It is written for CFOs, CTOs, and marketing leaders weighing whether to invest in modernizing their digital infrastructure.
What Enterprise Replatforming Means
Enterprise replatforming is defined as the systematic migration of a brand's digital infrastructure from legacy systems (typically WordPress with page builder plugins) to modern, AI-native architecture (typically headless React/TypeScript with structured data and specialized hosting).
Replatforming is not a redesign. A redesign changes how a site looks, while replatforming changes how it works: the technical foundation underneath it, the performance and security profile, and whether AI search platforms can index it at all.
The True Cost of Legacy Infrastructure
Before evaluating replatforming costs, quantify what your current infrastructure is costing you:
Performance Tax: WordPress sites with page builder plugins typically load in 4-8 seconds. Google's research found that 53% of mobile users abandon a site that takes over 3 seconds to load. If your site gets 10,000 monthly visitors and 53% leave before the page paints, that is 5,300 lost opportunities every month.
Security Liability: WordPress plugin vulnerabilities account for a significant portion of all web application attacks. The average cost of remediating a security incident ranges from $25,000 to $150,000+ for enterprise sites, not counting reputational damage and lost trust.
Maintenance Overhead: Enterprise WordPress sites run $2,000-$5,000 a month in ongoing maintenance for plugin updates, security patches, compatibility fixes, and hosting optimization. Over 3 years that is $72,000-$180,000 in maintenance alone.
AI Invisibility Cost: This is the hardest to quantify but increasingly the most consequential. If your competitors are being cited by ChatGPT, Gemini, and Perplexity while your site is invisible to AI crawlers, you are losing an unmeasurable number of leads from the fastest-growing search channel.
Replatforming Cost Breakdown
At Space & Story, our replatforming engagements follow a transparent pricing structure:
Foundation Tier: $10,000-$15,000 For marketing sites with 10-30 pages. Includes AEO audit, content architecture, custom headless build, content migration, 301 redirects, schema implementation, and deployment to production infrastructure.
Growth Tier: $15,000-$25,000 For complex marketing sites with 30-100 pages, multiple content types, CRM integrations, and advanced conversion flows. Includes everything in Foundation plus custom integrations, advanced schema markup, multi-language support, and ongoing AEO monitoring.
Enterprise Tier: Custom pricing For organizations with complex requirements such as multiple domains, enterprise CMS integrations, e-commerce functionality, or custom application features.
Timeline: What to Expect
A typical replatforming project follows this timeline:
Week 1: AEO audit and a full technical audit of existing infrastructure Week 2: Content architecture design and entity mapping Weeks 3-4: Custom build with real-time client feedback via GiveFeedback.dev Week 5: Content migration, redirect implementation, and QA Week 6: Launch, monitoring, and AI citation verification
Total: 5-6 weeks from kickoff to launch.
Measuring ROI
We recommend tracking these metrics to measure replatforming ROI:
Conversion Rate: Expect 15-30% improvement within 90 days due to faster load times and improved UX. Track this as revenue-per-visitor.
Page Load Speed: From 4-8 seconds to under 1 second. Measure with Core Web Vitals (LCP, CLS, INP).
Security Costs: From $2,000-$5,000/month in maintenance to near-zero ongoing security overhead. Zero plugin attack surface eliminates the primary vulnerability vector.
AI Citations: Track appearance in ChatGPT, Gemini, and Perplexity answers for target queries. This metric may take 60-90 days to show initial results but compounds over time.
Organic Traffic: Monitor Google Search Console for indexing coverage, click-through rates, and impression growth post-migration.
The Payback Calculation
For a brand spending $4,000/month on WordPress maintenance and losing an estimated 15% of conversions to poor performance:
- Annual WordPress maintenance saved: $48,000
- Conversion improvement value (15% on existing traffic): Variable, but typically $20,000-$100,000+ annually for enterprise sites
- AI citation value: Difficult to quantify, but the brands being cited today are building compounding authority
Against a one-time investment of $10,000-$25,000, the payback period is typically 3-6 months.
The Decision Framework
Replatforming makes sense when:
- Your current site loads in more than 3 seconds
- You are spending more than $2,000/month on WordPress maintenance and security
- Your competitors appear in AI search answers and you do not
- Your conversion rates are below industry benchmarks despite sufficient traffic
- You are planning a rebrand or significant content overhaul (combine the efforts)
Replatforming may not be necessary when:
- Your current site is less than 2 years old and built on modern architecture
- Your traffic is very low (under 1,000 monthly visitors), in which case focus on content first
- You need a quick cosmetic refresh, where a theme update may be enough
For a free assessment of whether replatforming is right for your organization, run our AEO infrastructure audit or start a conversation with our team.