Tellstack

What bonn.de is built with

Read on 2026-10-28 16:52. 3 technologies spotted.

TechnologyCategoryVersionConfidenceTell
HSTSSecurity100%headers strict-transport-security: max-age=31536000; includeSubDomains; prel
HTTP/3Miscellaneous100%headers alt-svc: h3=":443"; ma=86400
Let's EncryptSSL/TLS certificate authorities100%certIssuer: Let's Encrypt, YE2

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