Web host
Websites hosted on IONOS
- popular sites on it
- 1 of 119
- popular sites on its DNS
- 1
- popular sites on its email
- 1
Popular sites
Popular sites using IONOS
From the 119 popular domains we check every day, most visited first. Each tag shows what IONOS runs for the site.
About
What is IONOS?
IONOS is a German web host and cloud provider, part of United Internet and formerly known as 1&1. It sells domains, shared hosting, VPS, dedicated and cloud servers.
Domains registered at IONOS usually keep its nameservers and mail servers, even when the site runs elsewhere.
Detection
How to tell a site uses IONOS
A hosting check compares a site's DNS records, IP address and response headers with these signals. When several providers match, the one with the most matches wins.
Networks (ASN)
IP addresses announced by these autonomous systems belong to IONOS.
- AS8560
Mail servers
A domain whose MX records point here receives its email through IONOS.
- *.ionos.com
- *.ionos.de
- *.1and1.com
- *.kundenserver.de
FAQ
IONOS questions
ASNs, IP ranges and how to check whether a site uses IONOS.
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How to detect each one, and the popular sites that use it.
Free lookup tool
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