cardio-guide.com - robtex.com
cardio-guide.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:221:11cd:9734:4c26:6044:5f33🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | redirect.checkdomain.de | ||||||
| A | 88.99.101.251🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| NS | ns2.checkdomain.de ⭐ | ||||||
| A | 2a01:4f8:2b02:a88::106🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns2.checkdomain.de | ||||||
| A | 5.9.190.98🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | ns2.checkdomain.de | ||||||
| NS | ns.checkdomain.de | ||||||
| A | 2a02:2b80:101:5000::9🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| A | 109.237.143.11🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | ns1.checkdomain.de | ||||||
| MX | cardio-guide.com ⭐ | ||||||
| A | 2a01:4f8:221:11cd:9734:4c26:6044:5f33🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | redirect.checkdomain.de | ||||||
| A | 88.99.101.251🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | redirect.checkdomain.de | ||||||
| SOA | ns.checkdomain.deinfo@dvfgi.de 2025-04-01 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786174114 | ||||||
MX for
cardio-guide.com |
Same first word
cardio-guide.com |
DNS History
6 records (5 active, 1 former)
●NSns.checkdomain.de2016-12-05 → 2026-08-08 · 2 obs
● 2026-08-08 07:57:40
●NSns2.checkdomain.de2016-12-05 → 2026-08-08 · 2 obs
● 2026-08-08 07:57:40
●MXcardio-guide.com2016-12-05 → 2026-08-08 · 2 obs
● 2026-08-08 07:57:40
●A2a01:4f8:221:11cd:9734:4c26:6044:5f332026-04-02 → 2026-08-08 · 3 obs
● 2026-04-02 09:52:44
● 2026-08-08 07:57:40
○A78.47.133.2392016-12-05 → 2017-08-19 · 4 obs
● 2017-08-19 16:49:34
○ 2026-04-02 09:52:44
○ 2026-08-08 07:57:40
●A88.99.101.2512026-04-02 → 2026-08-08 · 3 obs
● 2026-04-02 09:52:44
● 2026-08-08 07:57:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cardio-guide.com | ns.checkdomain.de, ns2.checkdomain.de | - |
✅ Authoritative Response
Server:109.237.143.11
NS records: ns.checkdomain.de, ns2.checkdomain.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cardio-guide.com (unsigned zone)
⏱️ Timing
Total: 869ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.99.101.251 |
| AAAA | 1 | 2a01:4f8:221:11cd:9734:4c26:6044:5f33 |
| NS | 2 | ns.checkdomain.de, ns2.checkdomain.de |
| MX | 1 | cardio-guide.com (pri: 10) |
| SOA | 1 | ns.checkdomain.de info.dvfgi.de |
Analysis
Mail Server Role
The MX record for cardio-guide.com points back to cardio-guide.com — it is its own mail server.
IP Addresses
cardio-guide.com directs to two IP numbers, 88.99.101.251 and 2a01:4f8:221:11cd:9734:4c26:6044:5f33
Among the host names that share IP numbers with cardio-guide.com are vialino.de, mutr.org, autobid.cz and two others.
Name Servers
DNS delegation for cardio-guide.com points to two name servers: ns2.checkdomain.de and ns.checkdomain.de.
cardio-guide.com has the same name server delegation as a number of other domains, such as adams-freiburg.de, muermann.eu, onlyhot.com and two more.
cardio-guide.com has partial name server overlap with other domains, including 65.180.82.in-addr.arpa.
ns2.checkdomain.de directs to 5.9.190.98 and 2a01:4f8:2b02:a88::106. ns.checkdomain.de directs to 109.237.143.11 and 2a02:2b80:101:5000::9. Each host name carries two IP addresses.
Mail Servers
The MX record for cardio-guide.com points to a single mail server: cardio-guide.com.
The host cardio-guide.com resolves to 88.99.101.251 and 2a01:4f8:221:11cd:9734:4c26:6044:5f33 — two IP addresses.