Nazwa Usage Statistics · Download List of All Websites using Nazwa
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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.
Last technology detected on 31st July 2020. We know of 2 technologies on this page and 1 technologies removed from 4look.pl since 2nd July 2019. Link to this page.
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