DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
21sense.de runs on Strato, with email via Microsoft 365.
- Hosting network
- StratoAS6724Strato
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 112,056 other sites on Strato. Stable here since we started watching (Sep 13, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to 21sense.de.
DNS Records for 21sense.de
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| 21sense.de | SOA | 300 | docks04.rzone.de hostmaster.strato-rz.de 2020101990 86400 7200 604800 300 | |
| 21sense.de | AAAA | 0 | 2a01:238:20a:202:1150:: | |
| 21sense.de | NS | 0 | docks04.rzone.de | |
| 21sense.de | NS | 0 | shades11.rzone.de | |
| 21sense.de | A | 0 | 81.169.145.150 | |
| 21sense.de | MX | 0 | 10 | 21sense-de.mail.protection.outlook.com |
| 21sense.de | TXT | 0 | apple-domain-verification=gNt4xsTO5IEEoSN0 | |
| 21sense.de | TXT | 0 | MS=ms80952121 | |
| 21sense.de | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| 21sense.de | TXT | 0 | google-site-verification=wzPNYMBqxHPWMhKDDj8MsNvHihgH_7GOIq_siPe9I1A | |
| www.21sense.de | CNAME | 0 | 21sense.de | |
| www.21sense.de | NS | 0 | docks04.rzone.de | |
| www.21sense.de | NS | 0 | shades11.rzone.de | |
| www.21sense.de | A | 0 | 81.169.145.150 | |
| www.21sense.de | SOA | 300 | docks04.rzone.de hostmaster.strato-rz.de 2020101990 86400 7200 604800 300 | |
| www.21sense.de | TXT | 0 | google-site-verification=wzPNYMBqxHPWMhKDDj8MsNvHihgH_7GOIq_siPe9I1A | |
| www.21sense.de | TXT | 0 | apple-domain-verification=gNt4xsTO5IEEoSN0 | |
| www.21sense.de | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| www.21sense.de | TXT | 0 | MS=ms80952121 | |
| www.21sense.de | MX | 0 | 10 | 21sense-de.mail.protection.outlook.com |
| www.21sense.de | AAAA | 0 | 2a01:238:20a:202:1150:: |
Get alerted the moment 21sense.de's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch 21sense.de continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain