maths·schools / tech
Pre-opening · Independent (fee-paying)

The 1729 Maths School

The outlier: a Netlify static site with a genuinely commercial stack — HubSpot, Zoom, Barracuda-filtered Microsoft-plus-Google mail, and a strict p=reject DMARC.

Remix (React) + Sanity CMSNetlify EdgeMicrosoft 365 + Googlep=reject

Sponsor / owner: Independent — funded by Alex & Elena Gerko (XTX Markets); with Mill Hill Education Group. All values below are a point-in-time snapshot observed 24 July 2026 from public DNS, WHOIS/RDAP, HTTP response headers and published policies — how this was gathered.

Infrastructure

Website
1729mathsschool.org.uk
Platform / CMS
Remix (React) + Sanity CMS
A Remix front-end with a Sanity headless CMS backend — whose project is shared with Mill Hill's own website — built by Ecrubox and deployed on Netlify.
Web host / origin
Netlify
Netlify's anycast edge (75.2.60.5), running on AWS — the same platform Aston uses.
CDN
Netlify Edge
DNS provider
UK2
dns1.uk2.net dns2.uk2.net dns3.uk2.net
Registry
.org.uk (Nominet)
Registrar / agent
UK-2 Limited (UK2)
Registrant
(registrant not published in Nominet WHOIS)
Domain created / expiry
30 January 2025 · expires 30 January 2027
Email
Microsoft 365 + Google via Barracuda Email Security Service
Barracuda ESS in front of mail; SPF authorises Microsoft 365, Google, SendGrid and HubSpot — the broadest mail-sender set of any school here.
DMARC
p=reject
Strict p=reject with forensic reporting to Barracuda — a corporate-grade posture matching its funding.

Third-party signals in DNS

Domain-verification and SPF records left in DNS reveal which SaaS platforms a domain has been connected to. These are fingerprints, not proof of active use.

Privacy & data processing

borrowed group notice

1729 publishes no privacy notice of its own — its footer links Mill Hill Education Group's group notice, which is overdue for review and never names 1729. Meanwhile the site runs the network's heaviest marketing stack: HubSpot forms, GA4, and Meta, Reddit and Google Ads pixels.

Policy
millhilleducationgroup.com/about-us/our-policies-and-reports (Mill Hill Education Group group notice (PDF, 2023 — review overdue))
Scope
Borrowed — Mill Hill Education Group group-wide notice
Data controller
Mill Hill Education Group (The Mill Hill School Foundation, charity 1064758)
ICO registration
Z5300813 · registration expires 22 November 2026
Registered controller: The Mill Hill School Foundation
"The 1729 Maths School" is a registered trading name under Mill Hill's registration.
Data Protection Officer
Internal — Mill Hill's Compliance Manager (no DPO firm on the register).
Consent tool
CookieScript

Named processors

Cookies & tracking

Google Tag Manager + GA4Meta / Facebook PixelHubSpot analyticsReddit Ads PixelGoogle Ads / DoubleClick remarketingElfsight
What the site loads vs. what it discloses

The footer's "Data Privacy Notice" is Mill Hill's group-wide notice (2023, next review May 2025 — overdue). It never mentions 1729, and names none of the trackers the site actually runs — which is the heaviest ad-tech footprint in the network.

Sources

  1. 1.Live DNS, WHOIS/RDAP and HTTP headers for 1729mathsschool.org.uk (observed 24 July 2026)
  2. 2.ICO data-protection register entry — ico.org.uk/ESDWebPages/Entry/Z5300813
  3. 3.Published privacy / cookie policy — millhilleducationgroup.com/about-us/our-policies-and-reports
  4. 4.1729 on the main guide — mathsschools.co.uk/schools/1729-maths-school/
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