contest-engineering.com - dns.ninja
contest-engineering.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.88.34.242🇩🇪 CLOUDPIT81.88.32.0/20 | ||||||
| PTR | host197.alfahosting-server.de | ||||||
| NS | cns1.alfahosting.info ⭐ | ||||||
| A | 2a01:64c0:0:5000::8🇩🇪 CLOUDPIT2a01:64c0::/32 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| A | 109.237.142.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| NS | cns2.alfahosting.info | ||||||
| A | 2a01:4f8:2b02:a88::105🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | cns2.cloudpit.com | ||||||
| A | 148.251.254.105🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2 | ||||||
| PTR | cns2.cloudpit.com | ||||||
| NS | cns3.alfahosting.info | ||||||
| A | 2a02:2b80:101:5000::8🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| A | 109.237.143.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| MX | mx03.secure-mailgate.com ⭐ | ||||||
| A | 46.243.88.174🇩🇪 CLOUDPIT46.243.88.0/21 | ||||||
| PTR | node03.secure-mailgate.com | ||||||
| A | 46.243.88.176🇩🇪 CLOUDPIT46.243.88.0/21 | ||||||
| PTR | node04.secure-mailgate.com | ||||||
| MX | mx04.secure-mailgate.com ⭐ | ||||||
| A | 46.243.88.175🇩🇪 CLOUDPIT46.243.88.0/21 | ||||||
| PTR | node03.secure-mailgate.com | ||||||
| A | 46.243.88.177🇩🇪 CLOUDPIT46.243.88.0/21 | ||||||
| PTR | node04.secure-mailgate.com | ||||||
| SOA | cns1.alfahosting.infohostmaster@alfahosting.de 2026-06-11 #2 | ||||||
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=1785074882 | ||||||
Subdomains
mail.contest-engineering.com |
Same first word
contest-engineering.com |
DNS History
8 records (6 active, 2 former)
●NScns1.alfahosting.info2015-07-19 → 2026-07-26 · 2 obs
● 2026-07-26 14:11:52
●NScns2.alfahosting.info2015-07-19 → 2026-07-26 · 2 obs
● 2026-07-26 14:11:52
●NScns3.alfahosting.info2015-07-19 → 2026-07-26 · 2 obs
● 2026-07-26 14:11:52
○MXmail.contest-engineering.com2015-07-19 → 2017-03-25 · 4 obs
● 2017-03-25 03:54:28
○ 2026-03-08 01:21:48
○ 2026-07-26 14:11:52
●MXmx03.secure-mailgate.com2026-03-08 → 2026-07-26 · 3 obs
● 2026-03-08 01:21:48
● 2026-07-26 14:11:52
●MXmx04.secure-mailgate.com2026-03-08 → 2026-07-26 · 3 obs
● 2026-03-08 01:21:48
● 2026-07-26 14:11:52
○A109.237.132.242015-07-19 → 2017-03-25 · 4 obs
● 2017-03-25 03:54:28
○ 2026-03-08 01:21:48
○ 2026-07-26 14:11:52
●A81.88.34.2422026-03-08 → 2026-07-26 · 3 obs
● 2026-03-08 01:21:48
● 2026-07-26 14:11:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net... | - |
| contest-engineering.com | cns3.alfahosting.info, cns2.alfahosting.info, cns1.alfahosting.info | - |
✅ Authoritative Response
Server:148.251.254.105
NS records: cns3.alfahosting.info, cns2.alfahosting.info, cns1.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for contest-engineering.com (unsigned zone)
⏱️ Timing
Total: 1023ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.242 |
| NS | 3 | cns3.alfahosting.info, cns2.alfahosting.info... |
| MX | 2 | mx03.secure-mailgate.com (pri: 10), mx04.secure-mailgate.com (pri: 10) |
| SOA | 1 | cns1.alfahosting.info hostmaster.alfahos |
Analysis
Hierarchy
contest-engineering.com serves as the parent of mail.contest-engineering.com.
IP Addresses
contest-engineering.com points to a single IP number: 81.88.34.242.
Additional host names — e3dorfen.de, mail.kerschensteinerschule-hausen.de, mail.sonnenfreunde-bs.de and two others — share IP numbers with contest-engineering.com.
Name Servers
contest-engineering.com carries NS records delegating to cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
contest-engineering.com has at least partial name server overlap with other domains, such as linkcatalog.de, metallbau-bernhard.com, essenonline.at and two others.
cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info are three hostnames that each resolve to a pair of IP addresses: cns1.alfahosting.info to 109.237.142.8 and 2a01:64c0:0:5000::8, cns2.alfahosting.info to 148.251.254.105 and 2a01:4f8:2b02:a88::105, and cns3.alfahosting.info to 109.237.143.8 and 2a02:2b80:101:5000::8.
Mail Servers
contest-engineering.com has two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.
contest-engineering.com shares the same mail server setup as other domains, including altmann-golf.de, markus-hollemann.de, krueger-k.de and two others.
mx03.secure-mailgate.com and mx04.secure-mailgate.com both carry two IP addresses. The A records for mx03.secure-mailgate.com are 46.243.88.174 and 46.243.88.176; the A records for mx04.secure-mailgate.com are 46.243.88.175 and 46.243.88.177.