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Slack

Slack Usage Statistics · Download List of All Websites using Slack

Messaging app for teams that makes working together simple and efficient.

Atlassian Cloud

Atlassian Cloud Usage Statistics · Download List of All Websites using Atlassian Cloud

Products including Jira and Confluence.

Ticketing System

Google Apps for Business

Google Apps for Business Usage Statistics · Download List of All Websites using Google Apps for Business

Web-based email, calendar, and documents for teams. Renamed to Google Apps for Work, but now known as G Suite from Google Cloud.

Business Email Hosting

SPF

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.

Apple iCloud Mail

Apple iCloud Mail Usage Statistics · Download List of All Websites using Apple iCloud Mail

Webmail service provided by Apple.

Microsoft Exchange Online

Microsoft Exchange Online Usage Statistics · Download List of All Websites using Microsoft Exchange Online

A rich hosted Exchange environment for every user without having to manage a server.

Business Email Hosting

Office 365 Mail

Office 365 Mail Usage Statistics · Download List of All Websites using Office 365 Mail

Email sent from this domain has records showing Office 365 usage.

Business Email Hosting

Akamai Hosted

Akamai Hosted Usage Statistics · Download List of All Websites using Akamai Hosted

Data network CDN provider.

US hosting

Amazon Route 53

Amazon Route 53 Usage Statistics · Download List of All Websites using Amazon Route 53

Amazon's scalable DNS web service system.

Enterprise DNS

Akamai Edge

Akamai Edge Usage Statistics · Download List of All Websites using Akamai Edge

Akamai's Edge Platform is one of the world's largest distributed computing platforms. It is a network of more than 95,000 secure servers equipped with proprietary software and deployed in 71 countries.

Edge Delivery Network