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 15th July 2019. We know of 1 technologies on this page and 50 technologies removed from booking.pl since 4th December 2014. Link to this page.
Get a notification when booking.pl adds new technologies.
Can't find the technology you are looking for? Send us a suggestion, we will try and add it to our database.