116
Known CVEs across 18 plugins in the last 24 months. Snapshot from Patchstack public DB, May 2026.
Your WordPress site is costing more than you think.
Paste your URL and we'll show you 6 numbers your finance team would want to know -- 5-year run cost, plugin CVE exposure, Lighthouse delta, migration band, break-even month, and the 3 closest migration paths from our shipped work. Only 1 of those numbers is the migration price.
Paste your URL. Watch your real 5-year cost climb in about 8 seconds.
We will scan your plugins, your hosting tier, and your CVE exposure -- and show you what you are actually paying. Numbers update as you adjust the form below.
We will read your sitemap, detect plugins, and pre-fill the form below in about 8 seconds. No data leaves your browser except the URL.
Adjust the assumptions
11k10k100k
02550
Monthly traffic
02040
What do you run on top of WordPress?
01020
Migrating pays for itself in month 20. Here is the math.
2.94s -> 0.90s
Modelled from your plugin count and hosting tier. Jamstack flat target 0.90s.
£10k -- £15k
5-week sprint at the low end, 12-week full rebuild at the high. Median £12k.
Month 20
When the WordPress run-rate has paid for the migration itself.
Migration paths matched to your stack
Ready to see how we would migrate your site?
We will read your sitemap, audit your plugins, and ship you a proposal with a fixed scope and a fixed price. 30 minutes, no slides.
Book a 30-min migration callHow much does it cost to migrate a WordPress site?
A WordPress to Next.js or Astro migration in 2026 costs £8,000 to £45,000 depending on page count, plugin reimplementation, and whether WooCommerce, WPML, or membership flows are involved. The calculator above returns your specific band: median, 5-week sprint low end, and 12-week full rebuild high end. Year-1 hosting on the new stack lands at £540 to £2,400.
What drives the 5-year cost of WordPress?
- Hosting -- managed WordPress hosts charge $20 to $50/month for traffic that Vercel serves at the free tier or $20/month flat.
- Plugin licences -- 18 plugins on a typical site means $300 to $800/year in renewals, with 8% annual inflation built in.
- Dev hours -- security patching, plugin compatibility testing, and theme updates add up to 4-12 hours/month at $75/hour blended.
- Plugin overhead -- each active plugin costs about 2 dev hours/year just keeping the lights on.
- Tech debt tax -- sites older than 5 years carry an additional $1,200/year in unplanned breakage, dependency churn, and PHP version migrations.
How we calculated this -- for the engineer your CMO is going to forward this to.
Every constant in this calculator is documented and dated. The hosting tier penalties come from public host rate cards. CVE counts come from a Patchstack public DB snapshot dated May 2026, matched against the top 50 plugins by install share. Migration cost bands match the range we quote in real discovery calls. Plugin licence inflation is set at 8% per year (industry trailing 5-year average). The 60-month chart compounds these monthly with a one-time migration spike for the Modern Jamstack series. The detailed methodology page ships with Phase 4.
Why compare against Modern Jamstack?
Modern Jamstack is the comparison we can quote precisely -- it's the stack we ship: Next.js or Astro on Vercel, Supabase for data and auth, Stripe for payments, Resend for email. Webflow and Shopify are valid alternatives at different price points (and we'll add them in a later version of this calculator). The numbers here are what a senior product team should expect from any modern static-first React or Astro stack on a Tier-1 CDN.
What's not in this calculator yet
Phase 1 is the manual calculator you see now. Phase 2 ships the URL auto-scan. Phase 3 wires the live Patchstack feed and weekly CVE refresh. Phase 4 ships the PDF download and the public methodology page with every constant rendered live from formulas.ts. The migration paths sidebar is populated from our shipped work in /migrate/.
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