cref.it - dns.ninja

cref.it

DNSSEC⚠️ Not signed
A188.40.182.66🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1
PTRmail66.oxygen-cloud.net
NSns1.he.net ⭐
A2001:470:100::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.he.net
A216.218.130.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.he.net
NSns2.he.net
A2001:470:200::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns2.he.net
A216.218.131.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns2.he.net
NSns3.he.net
A2001:470:300::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.he.net
A216.218.132.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.he.net
NSns4.he.net
A2001:470:400::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns4.he.net
A216.66.1.2🇺🇸 HURRICANE216.66.0.0/19 Hurricane Electric 55 South Market St San Jose, CA
PTRns4.he.net
NSns5.he.net
A2001:470:500::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns5.he.net
A216.66.80.18🇺🇸 HURRICANE216.66.80.0/20 Hurricane Electric 55 South Market St San Jose, CA
PTRns5.he.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c29::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadum-in-f26.1e100.net
A142.251.179.27🇺🇸 Google142.251.179.0/24
PTRpd-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1a🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f26.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
MXmailweb.cref.it(30)
A188.40.182.66🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1
PTRmail66.oxygen-cloud.net
TXTgoogle-site-verification=SdnVMNE-SDRlqKudT5mX1jA_mu6qcuOUjLFxu2vr_No
TXTv=spf1 include:_spf.google.com include:spf.mailjet.com +ip4:66.71.160.89 +ip4...
TXTMS=ms58228165
SOAns1.he.nethostmaster@he.net 2026-07-06 #3

it

DNSSEC🔒 Signed (DS record present)
NSdns.nic.it ⭐
NSa.dns.it
NSm.dns.it
NSnameserver.cnr.it
NSr.dns.it
NSv.dns.it
SOAdns.nic.ithostmaster@nic.it 2026-08-05 #12

Subdomains

mailweb.cref.it

Same first word

cref.ca
cref.or.kr
cref.org
cref.jp
cref.info
cref.ir
cref.co
cref.net
cref.com.au
cref.fr
cref.cc
cref.pt
cref.be
cref.co.jp
cref.nl
cref.co.kr
cref.de
cref.cf
cref.co.uk
cref.ru
cref.com
cref.it
cref.org.tw
cref.asso.fr

Similar names

cerf.ch
fecr.com
ferc.net
ecfr.com
fcre.net
ferc.gov
rfec.co.uk
fcre.cn
erfc.gr
cerf.de
efrc.online
rfce.fr
crfe.org
efrc.com
frec.com.br
frec.pl
ecrf.biz
cfer.cn
recf.jp
cefr.ch
erfc.fr
fcre.it
cfre.com
fcre.com
ecfr.org
rcef.net
ecfr.nl
ecfr.cn
cerf.science
rcfe.de
ecrf.in
cerf.re
fcer.com
cefr.io
erfc.de
ercf.blogspot.co.uk
ercf.de
rcfe.guru
erfc.com
frec.de
cfre.in
frec.co.ir
erfc.net
frec.no
rfec.de
frec.us
cerf.org
rcfe.net
crfe.com
fcre.top
ecrf.fi
refc.ru
rcfe.ru
cerf.online
frec.solutions
fcre.co.jp
fecr.in
ecfr.gov
cerf.it
frec.com
recf.com
rfec.ru
efrc.ru
ecrf.be
rcfe.com
frec.org.uk
erfc.us
ecrf.kr
ecrf.de
ecrf.cn
ecrf.net
cerf.fr
cfre.net
recf.ca
cefr.com
crfe.info
cefr.asso.fr
efcr.xyz
cfre.de
ferc.cc
fecr.de
ercf.blogspot.com
frce.be
efcr.cn
cerf.be
refc.com

DNS History

26 records (12 active, 14 former)

20162017201820192020202120222023202420252026NSns1.he.netns2.he.netns3.he.netns4.he.netns5.he.netdns.technorail.comdns2.technorail.comdns3.arubadns.netdns4.arubadns.czMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commailweb.cref.itmx.cref.itA188.40.182.6662.149.128.15162.149.128.15462.149.128.15762.149.128.16062.149.128.16362.149.128.16662.149.128.7262.149.128.7466.71.160.90
○NSdns.technorail.com2015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○NSdns2.technorail.com2015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○NSdns3.arubadns.net2015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○NSdns4.arubadns.cz2015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
●NSns1.he.net2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●NSns2.he.net2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●NSns3.he.net2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●NSns4.he.net2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●NSns5.he.net2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXalt1.aspmx.l.google.com2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXalt2.aspmx.l.google.com2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXalt3.aspmx.l.google.com2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXalt4.aspmx.l.google.com2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXaspmx.l.google.com2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
●MXmailweb.cref.it2026-02-15 → 2026-08-05 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
● 2026-08-05 11:05:12
○MXmx.cref.it2015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
●A188.40.182.662026-08-05 → 2026-08-05 · 2 obs
○ 2026-02-15 11:04:08
● 2026-08-05 11:05:12
○A62.149.128.1512015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.1542015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.1572015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.1602015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.1632015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.1662015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.722015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A62.149.128.742015-08-03 → 2016-12-17 · 4 obs
● 2015-08-03 19:48:18
● 2016-12-17 18:57:16
○ 2026-02-15 11:04:08
○ 2026-08-05 11:05:12
○A66.71.160.902026-02-15 → 2026-02-15 · 3 obs
○ 2016-12-17 18:57:16
● 2026-02-15 11:04:08
○ 2026-08-05 11:05:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
itdns.nic.it, r.dns.it, a.dns.it, m.dns.it...-
cref.itns3.he.net, ns2.he.net, ns5.he.net, ns4.he.net...-

✅ Authoritative Response

Server:216.66.80.18

NS records: ns3.he.net, ns2.he.net, ns5.he.net, ns4.he.net, ns1.he.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cref.it (unsigned zone)

⏱️ Timing

Total: 1248ms | Queries: -

📄 Records

TypeCountSample Data
A1188.40.182.66
NS5ns1.he.net, ns5.he.net...
MX6ALT1.ASPMX.L.GOOGLE.COM (pri: 5), ALT2.ASPMX.L.GOOGLE.COM (pri: 5)...
TXT3v=spf1 include:_spf.google.com include:s, MS=ms58228165...
SOA1ns1.he.net hostmaster.he.net

Analysis

Hierarchy

The domain mailweb.cref.it falls under the parent cref.it.

IP Addresses

cref.it resolves to one IP address: 188.40.182.66.

mail.acquistionline.com, quasar.ns2.oxygen-cloud.net, stradaperlarcobaleno.com and two other host names share IP numbers with cref.it.

Name Servers

cref.it has five name servers, which are ns1.he.net, ns2.he.net, ns3.he.net and two others.

At least some of cref.it's name servers are shared with other domains, for example garrettramos.com, metafil-lagirolle.ch, dom88.ru and two more.

These name servers tend to be deployed in combination with the name servers ns4.he.net and ns5.he.net.

Hostnames that resolve to two IP addresses:

ns1.he.net directs traffic to 216.218.130.2 and 2001:470:100::2.

ns2.he.net directs traffic to 216.218.131.2 and 2001:470:200::2.

ns3.he.net directs traffic to 216.218.132.2 and 2001:470:300::2.

ns4.he.net directs traffic to 216.66.1.2 and 2001:470:400::2.

ns5.he.net directs traffic to 216.66.80.18 and 2001:470:500::2.

Mail Servers

cref.it uses 6 mail servers for delivery: mailweb.cref.it, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other.

cref.it has at least partial mail server overlap with other domains such as ns500693.ns500765.ns500699.ns500693.ns500699.ns500699.ns500734.ns500588.ns500693.ns500683.ns500699.ns500612.ns500632.ns500612.ns500612.ns500110.dtrkdll.com, northpark.cc, everybitbetter.co.uk and two more.

These mail servers commonly co-occur with mail servers alt2.aspmx.l.google.com, alt4.aspmx.l.google.com, alt3.aspmx.l.google.com and 4 others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com directs traffic to 142.251.179.27 and 2607:f8b0:4004:c29::1a.

alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.

Hosts with just one IP address:

mailweb.cref.it has the IP address 188.40.182.66.