development.school - dns.ninja

development.school

DNSSEC⚠️ Not signed
A2607:f1c0:100f:f000::267🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTR2607-f1c0-100f-f000-0000-0000-0000-0267.elastic-ssl.ui-r.com
A74.208.236.146🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.
NSns-us.1and1-dns.com ⭐
A2001:8d8:fe:53:0:d9a0:5202:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-us.1and1-dns.com
A217.160.82.2🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-us.1and1-dns.com
NSns-us.1and1-dns.de
A2001:8d8:fe:53:0:d9a0:5002:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-us.1and1-dns.de
A217.160.80.2🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-us.1and1-dns.de
NSns-us.1and1-dns.org
A2001:8d8:fe:53:0:d9a0:5302:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-us.1and1-dns.org
A217.160.83.2🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-us.1and1-dns.org
NSns-us.1and1-dns.us
A2001:8d8:fe:53:0:d9a0:5102:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-us.1and1-dns.us
A217.160.81.2🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-us.1and1-dns.us
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 ~all
SOAns-us.1and1-dns.comhostmaster@1and1.com 2017-04-11 #4

school

DNSSEC🔒 Signed (DS record present)
NSv0n0.nic.school ⭐
NSv0n1.nic.school
NSv0n2.nic.school
NSv0n3.nic.school
NSv2n0.nic.school
NSv2n1.nic.school
SOAv0n0.nic.schoolhostmaster@donuts.email serial=1781542002

Same first word

development.support
development.ge
development.com
development.es
development.istanbul
development.sy
development.s3.amazonaws.com
development.co.il
development.boutique
development.app
development.pro
development.spdns.de
development.vip
development.gold
development.lt
development.coach
development.guide
development.company
development.org.sg
development.am
development.be
development.cl
development.ws
development.co.za
development.gr
development.jp
development.org
development.golf
development.no
development.by
development.lv
development.fund
development.capetown
development.me
development.org.uk
development.world
development.com.pl
development.school
development.kiev.ua
development.tas.gov.au
development.co.kr
development.or.jp
development.zone
development.at
development.az
development.coop
development.pl
development.dev
development.asia
development.net
development.awsapps.com
development.de
development.education
development.services
development.agency
development.red
development.tv
development.xyz
development.co.at
development.uk
development.run
development.training
development.pm
development.md
development.guru
development.li
development.plus
development.tips
development.wtf
development.hu
development.co.uk
development.com.au
development.id
development.limited

DNS History

14 records (8 active, 6 former)

2017201820192020202120222023202420252026NSns-us.1and1-dns.comns-us.1and1-dns.dens-us.1and1-dns.orgns-us.1and1-dns.usMXmx00.ionos.commx01.ionos.commx00.1and1.commx01.1and1.comA2607:f1c0:100f:f000::26774.208.236.146192.195.77.155216.250.120.632607:f1c0:1000:6077:580a:9d24:8c53:68122607:f1c0:1000:7075:87d5:f6c4:4168:8831
●NSns-us.1and1-dns.com2016-12-10 → 2026-06-15 · 2 obs
● 2016-12-10 20:53:48
● 2026-06-15 17:33:24
●NSns-us.1and1-dns.de2016-12-10 → 2026-06-15 · 2 obs
● 2016-12-10 20:53:48
● 2026-06-15 17:33:24
●NSns-us.1and1-dns.org2016-12-10 → 2026-06-15 · 2 obs
● 2016-12-10 20:53:48
● 2026-06-15 17:33:24
●NSns-us.1and1-dns.us2016-12-10 → 2026-06-15 · 2 obs
● 2016-12-10 20:53:48
● 2026-06-15 17:33:24
○MXmx00.1and1.com2016-12-10 → 2017-09-04 · 4 obs
● 2016-12-10 20:53:48
● 2017-09-04 08:08:58
○ 2026-02-18 00:06:34
○ 2026-06-15 17:33:24
●MXmx00.ionos.com2026-02-18 → 2026-06-15 · 3 obs
○ 2017-09-04 08:08:58
● 2026-02-18 00:06:34
● 2026-06-15 17:33:24
○MXmx01.1and1.com2016-12-10 → 2017-09-04 · 4 obs
● 2016-12-10 20:53:48
● 2017-09-04 08:08:58
○ 2026-02-18 00:06:34
○ 2026-06-15 17:33:24
●MXmx01.ionos.com2026-02-18 → 2026-06-15 · 3 obs
○ 2017-09-04 08:08:58
● 2026-02-18 00:06:34
● 2026-06-15 17:33:24
○A192.195.77.1552016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 20:53:48
○ 2017-09-04 08:08:58
○ 2026-06-15 17:33:24
○A216.250.120.632017-09-04 → 2017-09-04 · 4 obs
○ 2016-12-10 20:53:48
● 2017-09-04 08:08:58
○ 2026-02-18 00:06:34
○ 2026-06-15 17:33:24
○A2607:f1c0:1000:6077:580a:9d24:8c53:68122016-12-10 → 2016-12-10 · 3 obs
● 2016-12-10 20:53:48
○ 2017-09-04 08:08:58
○ 2026-06-15 17:33:24
○A2607:f1c0:1000:7075:87d5:f6c4:4168:88312017-09-04 → 2017-09-04 · 4 obs
○ 2016-12-10 20:53:48
● 2017-09-04 08:08:58
○ 2026-02-18 00:06:34
○ 2026-06-15 17:33:24
●A2607:f1c0:100f:f000::2672026-02-18 → 2026-06-15 · 3 obs
○ 2017-09-04 08:08:58
● 2026-02-18 00:06:34
● 2026-06-15 17:33:24
●A74.208.236.1462026-02-18 → 2026-06-15 · 3 obs
○ 2017-09-04 08:08:58
● 2026-02-18 00:06:34
● 2026-06-15 17:33:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
schoolv2n0.nic.school, v0n1.nic.school, v0n0.nic.school, v0n2.nic.school...12 records
development.schoolns-us.1and1-dns.org, ns-us.1and1-dns.us, ns-us.1and1-dns.de, ns-us.1and1-dns.com-

✅ Authoritative Response

Server:217.160.83.2

NS records: ns-us.1and1-dns.org, ns-us.1and1-dns.us, ns-us.1and1-dns.de, ns-us.1and1-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for development.school (unsigned zone)

⏱️ Timing

Total: 592ms | Queries: -

📄 Records

TypeCountSample Data
A174.208.236.146
AAAA12607:f1c0:100f:f000::267
NS4ns-us.1and1-dns.us, ns-us.1and1-dns.org...
MX2mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)
TXT1v=spf1 include:_spf-us.ionos.com ~all
SOA1ns-us.1and1-dns.com hostmaster.1and1.com

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.school, v0n1.nic.school, v0n2.nic.school...)

Analysis

IP Addresses

development.school directs to two IP numbers, 74.208.236.146 and 2607:f1c0:100f:f000::267

Additional host names — happyhourdeliveries.com, bitterpenpress.com, thefishoffice.com and two others — share IP numbers with development.school.

Name Servers

development.school has four authoritative name servers: ns-us.1and1-dns.com, ns-us.1and1-dns.de, ns-us.1and1-dns.org and ns-us.1and1-dns.us.

development.school partially shares its NS delegation with several other domains, including biz-mark.com, pokemonpro.com, arslans.com and two others.

The name servers ns57.1and1.com, ns58.1and1.com, ns51.1and1.com and ns52.1and1.com are often found in use alongside these name servers.

ns-us.1and1-dns.com, ns-us.1and1-dns.de, ns-us.1and1-dns.org and ns-us.1and1-dns.us each carry two IP addresses. ns-us.1and1-dns.com has 217.160.82.2 and 2001:8d8:fe:53:0:d9a0:5202:100; ns-us.1and1-dns.de has 217.160.80.2 and 2001:8d8:fe:53:0:d9a0:5002:100; ns-us.1and1-dns.org has 217.160.83.2 and 2001:8d8:fe:53:0:d9a0:5302:100; ns-us.1and1-dns.us has 217.160.81.2 and 2001:8d8:fe:53:0:d9a0:5102:100.

Mail Servers

development.school has two mail servers: mx00.ionos.com and mx01.ionos.com.

development.school shares the same mail server setup as other domains, including film2u.com, ndtdirect.com, nraco.us and two others.

mx00.ionos.com resolves to 74.208.5.3. mx01.ionos.com resolves to 74.208.5.21. Both host names point to a single IP number.