alerfa.com - dns.ninja
alerfa.com
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=1780872046 | ||||||
Subdomains
mail.alerfa.com |
Same first word
alerfa.com |
Similar names
DNS History
9 records (7 active, 2 former)
●NSroot-dns.netcup.net2016-12-17 → 2026-06-07 · 2 obs
● 2026-06-07 23:10:54
●NSsecond-dns.netcup.net2016-12-17 → 2026-06-07 · 2 obs
● 2026-06-07 23:10:54
●NSthird-dns.netcup.net2016-12-17 → 2026-06-07 · 2 obs
● 2026-06-07 23:10:54
●MXmail.alerfa.com2016-12-17 → 2026-06-07 · 2 obs
● 2026-06-07 23:10:54
●MXmxe890.netcup.net2026-03-01 → 2026-06-07 · 3 obs
● 2026-03-01 10:54:50
● 2026-06-07 23:10:54
○MXmxf908.netcup.net2016-12-17 → 2017-10-09 · 4 obs
● 2017-10-09 17:11:24
○ 2026-03-01 10:54:50
○ 2026-06-07 23:10:54
●A202.61.232.1422026-03-01 → 2026-06-07 · 3 obs
● 2026-03-01 10:54:50
● 2026-06-07 23:10:54
●A2a03:4000:61:273c::17:70422026-03-01 → 2026-06-07 · 3 obs
● 2026-03-01 10:54:50
● 2026-06-07 23:10:54
○A46.38.249.212016-12-17 → 2017-10-09 · 4 obs
● 2017-10-09 17:11:24
○ 2026-03-01 10:54:50
○ 2026-06-07 23:10:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net... | - |
| alerfa.com | root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net | - |
✅ Authoritative Response
Server:188.68.63.68
NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alerfa.com (unsigned zone)
⏱️ Timing
Total: 823ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.61.232.142 |
| AAAA | 1 | 2a03:4000:61:273c::17:7042 |
| NS | 3 | second-dns.netcup.net, third-dns.netcup.net... |
| MX | 2 | mail.alerfa.com (pri: 10), mxe890.netcup.net (pri: 50) |
| TXT | 1 | v=spf1 mx a include:_spf.webhosting.syst |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
The domain mail.alerfa.com falls under the parent alerfa.com.
IP Addresses
alerfa.com points to two IP numbers: 202.61.232.142 and 2a03:4000:61:273c::17:7042.
www.smv.ag, fam-kammermeier.de, de.wunschmonster.de plus two other host names have IP numbers in common with alerfa.com.
Name Servers
The authoritative name servers for alerfa.com are root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net — three in total.
At least some of alerfa.com's name servers are shared with other domains, for example vespiary.de, nespeca.de, reitstall-feuersbach.de and two more.
root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net all resolve to exactly two IP numbers apiece: root-dns.netcup.net → 46.38.225.225 and 2a03:4000:0:1::e1e1; second-dns.netcup.net → 37.221.199.199 and 2a03:4000:2:24b::c7c7; third-dns.netcup.net → 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
alerfa.com uses two mail servers, mail.alerfa.com and mxe890.netcup.net.
At least some of the mail servers used by alerfa.com are shared with other domains: pammer.com, voef.at, werkerz.de and two others among them.
Host names pointing to two IP addresses:
mxe890.netcup.net directs traffic to 202.61.232.144 and 2a03:4000:0:547:18ed:1dff:fefb:947e.
Host names with one IP number:
mail.alerfa.com has the IP address 202.61.232.144.
Both mxe890.netcup.net and mail.alerfa.com resolve to 202.61.232.144 IP addresses each.