1stos.com - robtex.com

1stos.com

DNSSEC⚠️ Not signed
A162.159.142.17Cloudflare162.159.128.0/19 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.66.2.13🇺🇸 Cloudflare172.66.0.0/22 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1036.ui-dns.de ⭐
A2001:8d8:fe:53:0:d9a0:5024:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1036.ui-dns.de
A217.160.80.36🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1036.ui-dns.de
NSns1028.ui-dns.com
A2001:8d8:fe:53:0:d9a0:521c:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1028.ui-dns.com
A217.160.82.28🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1028.ui-dns.com
NSns1065.ui-dns.org
A2001:8d8:fe:53:0:d9a0:5341:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1065.ui-dns.org
A217.160.83.65🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1065.ui-dns.org
NSns1066.ui-dns.biz
A2001:8d8:fe:53:0:d9a0:5142:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1066.ui-dns.biz
A217.160.81.66🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1066.ui-dns.biz
MXmx00.ionos.com ⭐
A74.208.5.3🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.
PTRmx00.perfora.net
MXmx01.ionos.com ⭐
A74.208.5.21🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.
PTRmx01.perfora.net
TXTv=spf1 include:_spf-us.ionos.com include:mailgun.org ~all
TXTlw=64f6b418c3f7433d9a31d567
SOAns1036.ui-dns.dehostmaster@1und1.com 2017-06-01 #33

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Same first word

1stos.com

Similar names

os1st.com
os1st.com.au
os1st.co.nz

DNS History

16 records (8 active, 8 former)

20162017201820192020202120222023202420252026NSns1028.ui-dns.comns1036.ui-dns.dens1065.ui-dns.orgns1066.ui-dns.bizns1.hostsmart.orgns2.hostsmart.orgns3.hostsmart.orgns4.1stos.comns5.1stos.comns6.1stos.comMXmx00.ionos.commx01.ionos.commail2.1stos.comA162.159.142.17172.66.2.13185.34.174.22
○NSns1.hostsmart.org2015-05-31 → 2015-10-21 · 4 obs
● 2015-05-31 02:49:14
● 2015-10-21 20:53:50
○ 2016-01-17 22:05:50
○ 2026-03-11 14:24:06
●NSns1028.ui-dns.com2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●NSns1036.ui-dns.de2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●NSns1065.ui-dns.org2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●NSns1066.ui-dns.biz2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
○NSns2.hostsmart.org2015-05-31 → 2015-10-21 · 4 obs
● 2015-05-31 02:49:14
● 2015-10-21 20:53:50
○ 2016-01-17 22:05:50
○ 2026-03-11 14:24:06
○NSns3.hostsmart.org2015-05-31 → 2015-10-21 · 4 obs
● 2015-05-31 02:49:14
● 2015-10-21 20:53:50
○ 2016-01-17 22:05:50
○ 2026-03-11 14:24:06
○NSns4.1stos.com2016-01-17 → 2017-06-27 · 5 obs
○ 2015-10-21 20:53:50
● 2016-01-17 22:05:50
● 2017-06-27 09:44:38
○ 2026-03-11 01:48:30
○ 2026-03-11 14:24:06
○NSns5.1stos.com2016-01-17 → 2017-06-27 · 5 obs
○ 2015-10-21 20:53:50
● 2016-01-17 22:05:50
● 2017-06-27 09:44:38
○ 2026-03-11 01:48:30
○ 2026-03-11 14:24:06
○NSns6.1stos.com2016-01-17 → 2017-06-27 · 5 obs
○ 2015-10-21 20:53:50
● 2016-01-17 22:05:50
● 2017-06-27 09:44:38
○ 2026-03-11 01:48:30
○ 2026-03-11 14:24:06
○MXmail2.1stos.com2015-05-31 → 2017-06-27 · 4 obs
● 2015-05-31 02:49:14
● 2017-06-27 09:44:38
○ 2026-03-11 01:48:30
○ 2026-03-11 14:24:06
●MXmx00.ionos.com2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●MXmx01.ionos.com2026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●A162.159.142.172026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
●A172.66.2.132026-03-11 → 2026-03-11 · 3 obs
○ 2017-06-27 09:44:38
● 2026-03-11 01:48:30
● 2026-03-11 14:24:06
○A185.34.174.222015-05-31 → 2017-06-27 · 4 obs
● 2015-05-31 02:49:14
● 2017-06-27 09:44:38
○ 2026-03-11 01:48:30
○ 2026-03-11 14:24:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
1stos.comns1066.ui-dns.biz, ns1036.ui-dns.de, ns1065.ui-dns.org, ns1028.ui-dns.com2 records

✅ Authoritative Response

Server: 217.160.81.66

NS records: ns1066.ui-dns.biz, ns1036.ui-dns.de, ns1065.ui-dns.org, ns1028.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stos.com (unsigned zone)

⏱️ Timing

Total: 952ms | Queries: -

📄 Records

TypeCountSample Data
A2162.159.142.17, 172.66.2.13
NS4ns1066.ui-dns.biz, ns1028.ui-dns.com...
MX2mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)
TXT2lw=64f6b418c3f7433d9a31d567, v=spf1 include:_spf-us.ionos.com include
SOA1ns1036.ui-dns.de hostmaster.1und1.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1028.ui-dns.com, ns1028.ui-dns.com)

Analysis

IP Addresses

1stos.com resolves to two IP numbers: 162.159.142.17 and 172.66.2.13.

Other host names, for instance natureofwriting.com, learnworlds.com.cdn.cloudflare.net, eduply.com, crflearning.co.uk and opositores.net share IP numbers with 1stos.com.

Name Servers

1stos.com's delegation is handled by four name servers: ns1066.ui-dns.biz, ns1028.ui-dns.com, ns1036.ui-dns.de and ns1065.ui-dns.org.

1stos.com partially shares name servers with other domains; examples include surepay.us, erlebnis-pferd-und-natur-ev.de, coresearchresults.com, dadsofhonor.com and francopetrocca.de.

These name servers are commonly used alongside ns1066.ui-dns.com, ns1066.ui-dns.de, ns1066.ui-dns.org, ns1065.ui-dns.com, ns1065.ui-dns.de, ns1065.ui-dns.biz, ns1036.ui-dns.biz, ns1036.ui-dns.org, ns1036.ui-dns.com and ns1028.ui-dns.de.

Host names with two IPs:

ns1066.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5142:100 and 217.160.81.66

ns1028.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:521c:100 and 217.160.82.28

ns1036.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:5024:100 and 217.160.80.36

ns1065.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5341:100 and 217.160.83.65

Mail Servers

1stos.com is handled by two mail servers: mx00.ionos.com and mx01.ionos.com.

1stos.com has the same mail server setup as other domains, including intelmirror.com, leeschrager.com, gotomindpeace.com, bazzaaro.com and barsandtone.ca.

Host names with one IP number: The host name mx00.ionos.com points to 74.208.5.3 and the host name mx01.ionos.com points to 74.208.5.21.