Tellstack

What bl.uk is built with

Read on 2026-10-28 14:28. 13 technologies spotted.

TechnologyCategoryVersionConfidenceTell
AzurePaaS100%dns NS: ns2-06.azure-dns.net
Azure Front DoorLoad balancers100%headers x-azure-ref: 20261028T142850Z-186f6d8f668zgj75hC1LTStx
DigiCertSSL/TLS certificate authorities100%certIssuer: DigiCert Inc, GeoTrust TLS RSA CA G1
Google Tag ManagerTag managers100%html: me src="https://www.googletagmanager.com/ns.html?id=GTM-TSFX37GD" height="0" width="0" style="display:none;visibility:hi
HSTSSecurity100%headers strict-transport-security: max-age=63072000; includeSubDomains; prel
Microsoft 365Webmail, Email100%dns MX: -uk.mail.protection.outlook.com
Next.jsJavaScript frameworks, Web frameworks, Web servers, Static site generator100%headers x-powered-by: Next.js
Open GraphMiscellaneous100%dom meta[property*='og:']: <meta property="og:title" content="Welcome to the British Library">
Priority HintsPerformance100%dom iframe[fetchpriority], img[fetchpriority], script[fetchpriority], link[fetchpriority]: <link rel="preload" as="script" fetchPriority="low" href="/_next/static/chunks/1gqucqsftdagb.js">
ReactJavaScript frameworks100%implied Next.js
SanityCMS100%dom img[src*='cdn.sanity.io'],img[srcset*='cdn.sanity.io'],video[src*='cdn.sanity.io'],source[src*='cdn.sanity.io'],source[srcset*='cdn.sanity.io'],track[src*='cdn.sanity.io'] @src: https://cdn.sanity.io/files/v5dwkion/prod
Sanity.ioCMS100%dom img[src*='cdn.sanity.io'],img[srcset*='cdn.sanity.io'],video[src*='cdn.sanity.io'],source[src*='cdn.sanity.io'],source[srcset*='cdn.sanity.io'],track[src*='cdn.sanity.io'] @src: https://cdn.sanity.io/files/v5dwkion/prod
WebpackMiscellaneous100%implied Next.js

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