cert-ltd.de - robtex.com

cert-ltd.de

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::20f🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-020f.elastic-ssl.ui-r.com
A217.160.0.138🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSns1058.ui-dns.biz ⭐
A2001:8d8:fe:53:0:d9a0:513a:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1058.ui-dns.biz
A217.160.81.58🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1058.ui-dns.biz
NSns1058.ui-dns.com
A2001:8d8:fe:53:0:d9a0:523a:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1058.ui-dns.com
A217.160.82.58🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1058.ui-dns.com
NSns1058.ui-dns.de
A2607:f1c0:fe:53:185:132:32:58🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1058.ui-dns.de
A217.160.80.58🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1058.ui-dns.de
NSns1058.ui-dns.org
A2001:8d8:fe:53:0:d9a0:533a:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1058.ui-dns.org
A217.160.83.58🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1058.ui-dns.org
MXmx00.ionos.de ⭐
A212.227.15.41🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2
PTRmx00.kundenserver.de
MXmx01.ionos.de ⭐
A217.72.192.67🇩🇪 IONOS-AS217.72.192.0/20 Web.de
PTRmx01.kundenserver.de
TXTv=spf1 include:_spf-eu.ionos.com ~all
SOAns1058.ui-dns.bizhostmaster@1und1.de 2016-04-28 #5

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1774508245

Same first word

cert-ltd.com
cert-ltd.co.uk
cert-ltd.de

Similar names

trec-ltd.com
rtec-ltd.com

DNS History

14 records (8 active, 6 former)

20162017201820192020202120222023202420252026NSns1058.ui-dns.bizns1058.ui-dns.comns1058.ui-dns.dens1058.ui-dns.orgns35.1und1.dens36.1und1.deMXmx00.ionos.demx01.ionos.demx00.kundenserver.demx01.kundenserver.deA2001:8d8:100f:f000::20f217.160.0.138217.160.223.10182.165.80.219
●NSns1058.ui-dns.biz2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
●NSns1058.ui-dns.com2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
●NSns1058.ui-dns.de2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
●NSns1058.ui-dns.org2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
○NSns35.1und1.de2015-07-07 → 2017-10-26 · 4 obs
● 2015-07-07 21:16:22
● 2017-10-26 06:37:04
○ 2026-03-11 14:16:28
○ 2026-03-26 07:02:16
○NSns36.1und1.de2015-07-07 → 2017-10-26 · 4 obs
● 2015-07-07 21:16:22
● 2017-10-26 06:37:04
○ 2026-03-11 14:16:28
○ 2026-03-26 07:02:16
●MXmx00.ionos.de2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
○MXmx00.kundenserver.de2015-07-07 → 2017-10-26 · 4 obs
● 2015-07-07 21:16:22
● 2017-10-26 06:37:04
○ 2026-03-11 14:16:28
○ 2026-03-26 07:02:16
●MXmx01.ionos.de2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
○MXmx01.kundenserver.de2015-07-07 → 2017-10-26 · 4 obs
● 2015-07-07 21:16:22
● 2017-10-26 06:37:04
○ 2026-03-11 14:16:28
○ 2026-03-26 07:02:16
●A2001:8d8:100f:f000::20f2026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
●A217.160.0.1382026-03-11 → 2026-03-26 · 3 obs
○ 2017-10-26 06:37:04
● 2026-03-11 14:16:28
● 2026-03-26 07:02:16
○A217.160.223.1012016-11-26 → 2017-10-26 · 5 obs
○ 2016-04-23 18:35:36
● 2016-11-26 07:27:06
● 2017-10-26 06:37:04
○ 2026-03-11 14:16:28
○ 2026-03-26 07:02:16
○A82.165.80.2192015-07-07 → 2016-04-23 · 4 obs
● 2015-07-07 21:16:22
● 2016-04-23 18:35:36
○ 2016-11-26 07:27:06
○ 2026-03-26 07:02:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
cert-ltd.dens1058.ui-dns.biz, ns1058.ui-dns.org, ns1058.ui-dns.de, ns1058.ui-dns.com-

✅ Authoritative Response

Server:217.160.83.58

NS records: ns1058.ui-dns.biz, ns1058.ui-dns.org, ns1058.ui-dns.de, ns1058.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cert-ltd.de (unsigned zone)

⏱️ Timing

Total: 793ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.138
AAAA12001:8d8:100f:f000::20f
NS4ns1058.ui-dns.de, ns1058.ui-dns.org...
MX2mx00.ionos.de (pri: 10), mx01.ionos.de (pri: 10)
TXT1v=spf1 include:_spf-eu.ionos.com ~all
SOA1ns1058.ui-dns.biz hostmaster.1und1.de

Analysis

IP Addresses

cert-ltd.de resolves to two IP numbers: 2001:8d8:100f:f000::20f and 217.160.0.138.

Other host names, for instance loyolacenter.org, akhtar.eu, lungenautomaten-service.de, gaianewt.net and xn--tauschglck-heb.com share IP numbers with cert-ltd.de.

Name Servers

cert-ltd.de's delegation is handled by four name servers: ns1058.ui-dns.biz, ns1058.ui-dns.com, ns1058.ui-dns.de and ns1058.ui-dns.org.

cert-ltd.de partially shares name servers with other domains; examples include liquid-euphoria.com, servirreiner.com, woodpals.com, righttrackibs.co.uk and cuatrob.de.

These name servers are commonly used with ns1102.ui-dns.de, ns1092.ui-dns.de and ns1020.ui-dns.com.

Host names with two IPs:

ns1058.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:513a:100 and 217.160.81.58

ns1058.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:523a:100 and 217.160.82.58

ns1058.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:58 and 217.160.80.58

ns1058.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:533a:100 and 217.160.83.58

Mail Servers

cert-ltd.de is handled by two mail servers: mx00.ionos.de and mx01.ionos.de.

cert-ltd.de has the same mail server setup as other domains, including ev-altenzentrum-hueckeswagen.de, manteufel.de, bubner.com, e-tropolis.com and homemartin.de.

Host names with one IP number: The host name mx00.ionos.de points to 212.227.15.41 and the host name mx01.ionos.de points to 217.72.192.67.