Blu-Castle's tech stack
What does Blu-Castle use?
Blu-Castle (blu-castle.com) uses at least 15 tools we can see from public records, including Google Cloud for hosting, Microsoft 365 for email and documents, Google Analytics for analytics and Wix for its website. Last checked .
- Industry
- Internet
- Size
- 11–50 employees
- Based in
- Madrid, Spain
- Founded
- 2012
- Company page
- Tools found
- 15
- Categories
- 13
- Layers
- 5 of 5
- Last checked
- Oct 2026
Blu-Castle'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
3 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
3 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
4 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Company Ops
3 tools, what the team runs on day to day
Blu-Castle tech stack FAQ
What tools does Blu-Castle use?
As of October 2026, runsonwhat has found 15 tools at Blu-Castle (blu-castle.com) in public records. Edge & Hosting: Cloudflare, Google Cloud and Fastly. Application: GSAP and React. Data & Observability: Google Analytics and Sentry. Go-to-market: Meta Pixel and Wix. Company Ops: Microsoft 365, Atlassian and Valimail. Last checked October 20, 2026.
What cloud does Blu-Castle run on?
Blu-Castle uses Google Cloud for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Google Cloud through Google Cloud code on blu-castle.com. Google Cloud is used by 76,130 companies runsonwhat tracks.
What email provider does Blu-Castle use?
Blu-Castle uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on blu-castle.com. Microsoft 365 is used by 715,028 companies runsonwhat tracks.
What analytics tools does Blu-Castle use?
Blu-Castle uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on blu-castle.com. Google Analytics is used by 888,360 companies runsonwhat tracks.
What is Blu-Castle's website built with?
Blu-Castle uses Wix for its website, according to runsonwhat (October 2026). runsonwhat found Wix through a subdomain that points at Wix and email records. Wix is used by 51,502 companies runsonwhat tracks.
What monitoring tools does Blu-Castle use?
Blu-Castle uses Sentry for monitoring, according to runsonwhat (October 2026). runsonwhat found Sentry through Sentry code on blu-castle.com. Sentry is used by 79,051 companies runsonwhat tracks.
Does Blu-Castle use Cloudflare?
Yes. runsonwhat found Cloudflare at Blu-Castle through DNS records that point at Cloudflare and code on blu-castle.com. Cloudflare is a CDN & Edge tool used by 707,784 companies runsonwhat tracks.
How does runsonwhat know what Blu-Castle uses?
runsonwhat reads public records only. Of the 15 tools at Blu-Castle, 8 were found through code on blu-castle.com, 3 through DNS records, 2 through email records, 1 through website configuration files 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 blu-castle.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.