Castlebook's tech stack
What does Castlebook use?
Castlebook (castlebook.com) uses at least 8 tools we can see from public records, including Vercel for hosting, Zoho for sales, Google Analytics for analytics and Amazon SES for email delivery. Last checked .
“A curated directory of the world's most distinguished castles for weddings, retreats, and heritage travel.”
- Industry
- Real Estate
- Size
- 11–50 employees
- Based in
- Estonia
- Founded
- 2015
- Company page
- Tools found
- 8
- Categories
- 7
- Layers
- 5 of 5
- Last checked
- Oct 2026
Castlebook's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
1 tool, where the bytes are served from
Hosting & Cloud
Application
2 tools, what the product is built with
Frontend
Backend & Database
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
2 tools, how they find and keep customers
Marketing
Sales & CRM
Company Ops
2 tools, what the team runs on day to day
Email Delivery
Castlebook tech stack FAQ
What tools does Castlebook use?
As of October 2026, runsonwhat has found 8 tools at Castlebook (castlebook.com) in public records. Edge & Hosting: Vercel. Application: Next.js and Firebase. Data & Observability: Google Analytics. Go-to-market: Zoho. Company Ops: Amazon SES and Resend. Last checked October 6, 2026.
What cloud does Castlebook run on?
Castlebook uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and DNS records. Vercel is used by 46,321 companies runsonwhat tracks.
What CRM does Castlebook use?
Castlebook uses Zoho for its CRM, according to runsonwhat (October 2026). runsonwhat found Zoho through a DNS verification record for Zoho and email records. Zoho is used by 61,548 companies runsonwhat tracks.
What analytics tools does Castlebook use?
Castlebook uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on castlebook.com. Google Analytics is used by 850,248 companies runsonwhat tracks.
Does Castlebook use Next.js?
Yes. runsonwhat found Next.js at Castlebook through Next.js code on castlebook.com. Next.js is a Frontend tool used by 64,111 companies runsonwhat tracks.
How does runsonwhat know what Castlebook uses?
runsonwhat reads public records only. Of the 8 tools at Castlebook, 3 were found through DNS records, 2 through code on castlebook.com, 2 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and castlebook.com about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.