centersforlearning.com - robtex.com

centersforlearning.com

DNSSEC⚠️ Not signed
A2607:f1c0:100f:f000::28b🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTR2607-f1c0-100f-f000-0000-0000-0000-028b.elastic-ssl.ui-r.com
A74.208.236.210🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.
NSns1101.ui-dns.org ⭐
A2001:8d8:fe:53:0:d9a0:5365:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1101.ui-dns.org
A217.160.83.101🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1101.ui-dns.org
NSns1022.ui-dns.com
A2001:8d8:fe:53:0:d9a0:5216:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1022.ui-dns.com
A217.160.82.22🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1022.ui-dns.com
NSns1081.ui-dns.biz
A2001:8d8:fe:53:0:d9a0:5151:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1081.ui-dns.biz
A217.160.81.81🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1081.ui-dns.biz
NSns1088.ui-dns.de
A2607:f1c0:fe:53:185:132:32:88🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1088.ui-dns.de
A217.160.80.88🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1088.ui-dns.de
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
SOAns1101.ui-dns.orghostmaster@1und1.com 2017-06-01 #19

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=1776042002

Same first word

centersforlearning.com

DNS History

16 records (8 active, 8 former)

201820192020202120222023202420252026NSns1022.ui-dns.comns1081.ui-dns.bizns1088.ui-dns.dens1101.ui-dns.orgns23.domaincontrol.comns24.domaincontrol.comMXmx00.ionos.commx01.ionos.commailstore1.secureserver.netsmtp.secureserver.netA2607:f1c0:100f:f000::28b74.208.236.210198.185.159.144198.185.159.145198.49.23.144198.49.23.145
●NSns1022.ui-dns.com2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
●NSns1081.ui-dns.biz2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
●NSns1088.ui-dns.de2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
●NSns1101.ui-dns.org2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
○NSns23.domaincontrol.com2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○NSns24.domaincontrol.com2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○MXmailstore1.secureserver.net2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
●MXmx00.ionos.com2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
●MXmx01.ionos.com2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
○MXsmtp.secureserver.net2017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○A198.185.159.1442017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○A198.185.159.1452017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○A198.49.23.1442017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
○A198.49.23.1452017-05-10 → 2017-05-10 · 3 obs
● 2017-05-10 09:18:20
○ 2026-02-18 15:09:16
○ 2026-04-13 01:07:28
●A2607:f1c0:100f:f000::28b2026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28
●A74.208.236.2102026-02-18 → 2026-04-13 · 3 obs
○ 2017-05-10 09:18:20
● 2026-02-18 15:09:16
● 2026-04-13 01:07:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...-
centersforlearning.comns1101.ui-dns.org, ns1081.ui-dns.biz, ns1088.ui-dns.de, ns1022.ui-dns.com2 records

✅ Authoritative Response

Server:217.160.83.101

NS records: ns1101.ui-dns.org, ns1081.ui-dns.biz, ns1088.ui-dns.de, ns1022.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centersforlearning.com (unsigned zone)

⏱️ Timing

Total: 541ms | Queries: -

📄 Records

TypeCountSample Data
A174.208.236.210
AAAA12607:f1c0:100f:f000::28b
NS4ns1022.ui-dns.com, ns1081.ui-dns.biz...
MX2mx01.ionos.com (pri: 10), mx00.ionos.com (pri: 10)
TXT1v=spf1 include:_spf-us.ionos.com ~all
SOA1ns1101.ui-dns.org hostmaster.1und1.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1022.ui-dns.com, ns1022.ui-dns.com)

Analysis

IP Addresses

centersforlearning.com points to two IP numbers: 2607:f1c0:100f:f000::28b and 74.208.236.210.

Other host names, for instance devenaire.com, murillosfinancial.com, ledina.name, www.bronxdancetheatre.com and craigyoung.ca share IP numbers with centersforlearning.com.

Name Servers

centersforlearning.com is delegated to four name servers: ns1081.ui-dns.biz, ns1022.ui-dns.com, ns1088.ui-dns.de and ns1101.ui-dns.org.

centersforlearning.com shares name servers with other domains at least partially, for instance aeroclub-cantal.com, mein-foto.eu, elpavone.com, decopure.fr and kluthmotorsports.com.

these name servers are commonly used with the name servers ns1081.ui-dns.com, ns1088.ui-dns.com, ns1088.ui-dns.biz, ns1081.ui-dns.de, ns1081.ui-dns.org, ns1101.ui-dns.de, ns1088.ui-dns.org, ns1101.ui-dns.biz, ns1101.ui-dns.com and ns1022.ui-dns.org.

Host names with two IP numbers:

ns1081.ui-dns.biz resolves to 2001:8d8:fe:53:0:d9a0:5151:100 and 217.160.81.81.

ns1022.ui-dns.com resolves to 2001:8d8:fe:53:0:d9a0:5216:100 and 217.160.82.22.

ns1088.ui-dns.de resolves to 2607:f1c0:fe:53:185:132:32:88 and 217.160.80.88.

ns1101.ui-dns.org resolves to 2001:8d8:fe:53:0:d9a0:5365:100 and 217.160.83.101.

Mail Servers

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

centersforlearning.com shares the same mail server setup as other domains, including moodle.vul.edu, tvtube.us, myfinalfarewell.com, gothamgyms.com and collegefundingalternatives.com.

centersforlearning.com shares at least some mail servers with other domains, for instance zimmermanscountryfurniture.com.

Host names with one IP number:

mx00.ionos.com points to: 74.208.5.3.

mx01.ionos.com points to: 74.208.5.21.