iserv.app - robtex.com
iserv.app
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
MX for
iserv.app |
Subdomains
open.iserv.app |
Same first word
Similar names
DNS History
12 records (12 active, 0 former)
●MXiserv.app2026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A116.202.2.2552026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A116.203.121.1852026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A188.68.60.92026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A2a01:4f8:c01f:4a::12026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A2a01:4f8:c0c:ae45::12026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
●A2a03:4000:1b:738::12026-03-25 → 2026-04-25 · 2 obs
● 2026-04-25 12:28:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| app | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| iserv.app | ns4.iserv.eu, ns2.iserv.eu, ns3.iserv.eu, ns1.iserv.eu | - |
✅ Authoritative Response
Server:91.204.44.133
NS records: ns4.iserv.eu, ns2.iserv.eu, ns3.iserv.eu, ns1.iserv.eu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for iserv.app (unsigned zone)
⏱️ Timing
Total: 1911ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 188.68.60.9, 116.203.121.185... |
| AAAA | 3 | 2a03:4000:1b:738::1, 2a01:4f8:c0c:ae45::1... |
| NS | 4 | ns4.iserv.eu, ns1.iserv.eu... |
| MX | 2 | iserv.app (pri: 10), offline.iserv.eu (pri: 50) |
| TXT | 1 | v=spf1 a mx a:relay1.iserv.eu a:relay2.i |
| SOA | 1 | ns1.iserv.eu hostmaster.iserv.eu |
Analysis
Hierarchy
iserv.app is the parent of open.iserv.app.
Mail Server Role
iserv.app is the mail server for iserv.app.
Together with iserv.app, offline.iserv.eu is commonly used as a mail server.
IP Addresses
iserv.app points to six IP numbers: 2a01:4f8:c0c:ae45::1, 2a01:4f8:c01f:4a::1, 2a03:4000:1b:738::1, 116.202.2.255, 116.203.121.185 and 188.68.60.9.
Other host names, for instance schulserver.eu, iserv-bs.de, schulplattform.de, in45minuten.com and iserv.gmbh share IP numbers with iserv.app.
Name Servers
iserv.app is delegated to four name servers: ns1.iserv.eu, ns2.iserv.eu, ns3.iserv.eu and ns4.iserv.eu.
iserv.app shares some name servers with other domains, for example lgs-neuwied.de, obs-obenstrohe.eu, dsnd.org, elbschule-hh.de and amg-schule.de.
Host names with two IP numbers
Two IPs per host:
ns1.iserv.eu points to 2a01:4f8:c01f:42::1 and 116.202.2.219
ns2.iserv.eu points to 2a03:4000:20:19b::1 and 91.204.44.133
ns3.iserv.eu points to 2a01:4f8:1c0c:8111::1 and 116.203.7.41
ns4.iserv.eu points to 2a03:4000:20:19e::1 and 188.68.45.203
Mail Servers
iserv.app is handled by two mail servers: iserv.app and offline.iserv.eu.
iserv.app shares some mail servers with other domains, at least partially; for instance hhg-duisburg.de, seeparkschule.net, schule-hohn.org, wfo-melle.de and fintauschule.de.
Host names with six IP numbers:
iserv.app points to 2a01:4f8:c0c:ae45::1, 2a01:4f8:c01f:4a::1, 2a03:4000:1b:738::1, 116.202.2.255, 116.203.121.185 and 188.68.60.9.
Host names with two IP numbers:
offline.iserv.eu points to 2a01:4f8:c2c:4863::1 and 159.69.47.32.