classrecruit.com - robtex.com

classrecruit.com

DNSSEC⚠️ Not signed
A51.89.128.94🇬🇧 OVH51.89.0.0/16
PTRip94.ip-51-89-128.eu
NSns1049.ui-dns.org ⭐
A2001:8d8:fe:53:0:d9a0:5331:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1049.ui-dns.org
A217.160.83.49🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1049.ui-dns.org
NSns1100.ui-dns.biz
A2001:8d8:fe:53:0:d9a0:5164:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1100.ui-dns.biz
A217.160.81.100🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1100.ui-dns.biz
NSns1103.ui-dns.com
A2001:8d8:fe:53:0:d9a0:5267:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1103.ui-dns.com
A217.160.82.103🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1103.ui-dns.com
NSns1125.ui-dns.de
A2607:f1c0:fe:53:185:132:32:125🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1125.ui-dns.de
A217.160.80.125🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1125.ui-dns.de
MXbuildingrecruitment-co-uk.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::7🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00307.inbound.protection.outlook.com
A2a01:111:f403:ca04::8🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db5pr02cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca09::c🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr05cu00304.inbound.protection.outlook.com
A52.101.68.3🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00403.inbound.protection.outlook.com
A52.101.68.18🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00302.inbound.protection.outlook.com
A52.101.68.21🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00205.inbound.protection.outlook.com
A52.101.68.25🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db8pr02cu00101.inbound.protection.outlook.com
TXTMS=ms48373846
TXTv=spf1 a mx include:spf.protection.outlook.com ip4:46.236.31.126 ip4:46.249.2...
SOAns1049.ui-dns.orghostmaster@1and1.co.uk 2013-07-22 #7

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=1777005416

PTR for

227.233.32.46.in-addr.arpa

Same first word

classrecruit.com

Similar names

restucciasrl.com

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSns1049.ui-dns.orgns1100.ui-dns.bizns1103.ui-dns.comns1125.ui-dns.dens67.1and1.co.ukns68.1and1.co.ukMXbuildingrecruitment-co-uk.mail.protection.outlook.comcluster8.eu.messagelabs.comcluster8a.eu.messagelabs.commx00.1and1.co.ukmx01.1and1.co.ukA51.89.128.94212.227.228.45
●NSns1049.ui-dns.org2026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18
●NSns1100.ui-dns.biz2026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18
●NSns1103.ui-dns.com2026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18
●NSns1125.ui-dns.de2026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18
○NSns67.1and1.co.uk2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
○NSns68.1and1.co.uk2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
●MXbuildingrecruitment-co-uk.mail.protection.outlook.com2026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18
○MXcluster8.eu.messagelabs.com2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
○MXcluster8a.eu.messagelabs.com2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
○MXmx00.1and1.co.uk2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
○MXmx01.1and1.co.uk2015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
○A212.227.228.452015-08-05 → 2017-03-31 · 3 obs
● 2015-08-05 23:46:28
● 2017-03-31 02:13:32
○ 2026-04-24 04:55:18
●A51.89.128.942026-04-24 → 2026-04-24 · 2 obs
○ 2017-03-31 02:13:32
● 2026-04-24 04:55:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...-
classrecruit.comns1049.ui-dns.org, ns1100.ui-dns.biz, ns1125.ui-dns.de, ns1103.ui-dns.com2 records

✅ Authoritative Response

Server:217.160.83.49

NS records: ns1049.ui-dns.org, ns1100.ui-dns.biz, ns1125.ui-dns.de, ns1103.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classrecruit.com (unsigned zone)

⏱️ Timing

Total: 575ms | Queries: -

📄 Records

TypeCountSample Data
A151.89.128.94
NS4ns1125.ui-dns.de, ns1100.ui-dns.biz...
MX1buildingrecruitment-co-uk.mail.protectio
TXT2v=spf1 a mx include:spf.protection.outlo, MS=ms48373846
SOA1ns1049.ui-dns.org hostmaster.1and1.co.uk

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1103.ui-dns.com, ns1103.ui-dns.com)

Analysis

IP Addresses

classrecruit.com points to a single IP: 51.89.128.94.

Name Servers

classrecruit.com's delegation is handled by four name servers: ns1100.ui-dns.biz, ns1103.ui-dns.com, ns1125.ui-dns.de and ns1049.ui-dns.org.

classrecruit.com partially shares name servers with other domains; examples include mjsit.co.uk, stagemomsquad.com, fibu-mit-zukunft.biz, dg(0x706f726e)o.com and detrahimus.de.

These name servers are commonly used alongside ns1103.ui-dns.biz, ns1103.ui-dns.de, ns1103.ui-dns.org, ns1049.ui-dns.de, ns1100.ui-dns.com, ns1049.ui-dns.biz, ns1049.ui-dns.com, ns1100.ui-dns.de, ns1100.ui-dns.org and ns1125.ui-dns.org.

Host names with two IPs:

ns1100.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5164:100 and 217.160.81.100

ns1103.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5267:100 and 217.160.82.103

ns1125.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:125 and 217.160.80.125

ns1049.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5331:100 and 217.160.83.49

Mail Servers

classrecruit.com is handled by a single mail server, buildingrecruitment-co-uk.mail.protection.outlook.com.

Hostname buildingrecruitment-co-uk.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::7, 2a01:111:f403:ca04::8, 2a01:111:f403:ca04::d, 2a01:111:f403:ca09::c, 52.101.68.3, 52.101.68.18, 52.101.68.21 and 52.101.68.25.