SPF Usage Statistics · Download List of All Websites using SPF
The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.
First Colo Usage Statistics · Download List of All Websites using First Colo
Network infrastructure from First Colo based in Germany.
German hosting
Deutsche Telekom Usage Statistics · Download List of All Websites using Deutsche Telekom
Network infrastructure from Deutsche Telekom based in Germany.
Last technology detected on 15th August 2025. We know of 3 technologies on this page and 2 technologies removed from officeoptimizer.ch since 26th November 2020. Link to this page.
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