stdu.fr - robtex.com

stdu.fr

DNSSEC⚠️ Not signed
A51.178.98.213🇫🇷 OVH51.178.0.0/16
PTRplesk3104.cust.decanet.fr
NSns1.gandi.net ⭐
A2001:4b98:aaaa::2🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider
PTRns-1-a.gandi.net
A173.246.100.2🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A
PTRns-1-a.gandi.net
NSns-129-a.gandi.net
A2001:4b98:aaaa::82🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider
PTRns-129-a.gandi.net
A173.246.100.130🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A
PTRns-129-a.gandi.net
NSns-146-b.gandi.net
A2001:4b98:aaab::93🇫🇷 GANDI-LIVEDNS2001:4b98:aaab::/48 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRns-146-b.gandi.net
A213.167.230.147🇫🇷 GANDI-LIVEDNS213.167.230.0/24 GANDI is an ICANN accredited registrar and Cloud services provider
PTRns-146-b.gandi.net
NSns-53-c.gandi.net
A2604:3400:aaac::36🇺🇸 GANDI-LIVEDNS2604:3400:aaac::/48 Gandi US Inc.
PTRns-53-c.gandi.net
A217.70.187.54🇫🇷 GANDI-LIVEDNS217.70.187.0/24 GANDI is an ICANN accredited registrar and Cloud services provider
PTRns-53-c.gandi.net
MXstdu-fr.mail.protection.outlook.com ⭐
A2a01:111:f403:ca1e::🇫🇷 Microsoft2a01:111:f000::/36
PTRmail-mrzp264cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca25::🇫🇷 Microsoft2a01:111:f000::/36
PTRmail-pa5p264cu00200.inbound.protection.outlook.com
A2a01:111:f403:ca25::1🇫🇷 Microsoft2a01:111:f000::/36
PTRmail-pr0p264cu01301.inbound.protection.outlook.com
A2a01:111:f403:ca25::2🇫🇷 Microsoft2a01:111:f000::/36
PTRmail-paup264cu00202.inbound.protection.outlook.com
A52.101.164.0🇫🇷 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mrzp264cu00100.inbound.protection.outlook.com
A52.101.166.0🇫🇷 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-pa5p264cu00200.inbound.protection.outlook.com
A52.101.166.1🇫🇷 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-pr0p264cu01301.inbound.protection.outlook.com
A52.101.166.2🇫🇷 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-paup264cu00202.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.gandi.nethostmaster@gandi.net serial=1775692800

fr

DNSSEC🔒 Signed (DS record present)
NSa.nic.fr ⭐
NSd.nic.fr
NSf.ext.nic.fr
NSg.ext.nic.fr
TXT137 RRs processed [09/04/2026 20H50:50]
SOAa.nic.frdnsmaster@afnic.fr serial=2244793642

Same first word

stdu.edu.cn
stdu.fr

Similar names

dstu.education
stud.no
stud.cloud
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duts.net
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usdt.supply
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usdt.is
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dstu.or.kr
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usdt.co.uk
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dtus.co.za

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSns-129-a.gandi.netns-146-b.gandi.netns-53-c.gandi.netns1.gandi.neta.dns.gandi.netb.dns.gandi.netc.dns.gandi.netMXstdu-fr.mail.protection.outlook.commx.mailbox.orange-business.comA51.178.98.21381.252.171.1187.98.174.252
○NSa.dns.gandi.net2015-05-26 → 2018-07-13 · 4 obs
● 2015-05-26 10:43:02
● 2018-07-13 04:34:58
○ 2026-03-26 18:07:30
○ 2026-04-09 21:00:32
○NSb.dns.gandi.net2015-05-26 → 2018-07-13 · 4 obs
● 2015-05-26 10:43:02
● 2018-07-13 04:34:58
○ 2026-03-26 18:07:30
○ 2026-04-09 21:00:32
○NSc.dns.gandi.net2015-05-26 → 2018-07-13 · 4 obs
● 2015-05-26 10:43:02
● 2018-07-13 04:34:58
○ 2026-03-26 18:07:30
○ 2026-04-09 21:00:32
●NSns-129-a.gandi.net2026-03-26 → 2026-04-09 · 3 obs
○ 2018-07-13 04:34:58
● 2026-03-26 18:07:30
● 2026-04-09 21:00:32
●NSns-146-b.gandi.net2026-03-26 → 2026-04-09 · 3 obs
○ 2018-07-13 04:34:58
● 2026-03-26 18:07:30
● 2026-04-09 21:00:32
●NSns-53-c.gandi.net2026-03-26 → 2026-04-09 · 3 obs
○ 2018-07-13 04:34:58
● 2026-03-26 18:07:30
● 2026-04-09 21:00:32
●NSns1.gandi.net2026-03-26 → 2026-04-09 · 3 obs
○ 2018-07-13 04:34:58
● 2026-03-26 18:07:30
● 2026-04-09 21:00:32
○MXmx.mailbox.orange-business.com2015-05-26 → 2016-04-26 · 4 obs
● 2015-05-26 10:43:02
● 2016-04-26 07:22:02
○ 2016-12-23 00:41:12
○ 2026-04-09 21:00:32
●MXstdu-fr.mail.protection.outlook.com2016-12-23 → 2026-04-09 · 3 obs
○ 2016-04-26 07:22:02
● 2016-12-23 00:41:12
● 2026-04-09 21:00:32
●A51.178.98.2132026-03-26 → 2026-04-09 · 3 obs
○ 2018-07-13 04:34:58
● 2026-03-26 18:07:30
● 2026-04-09 21:00:32
○A81.252.171.112015-05-26 → 2016-04-26 · 4 obs
● 2015-05-26 10:43:02
● 2016-04-26 07:22:02
○ 2016-12-23 00:41:12
○ 2026-04-09 21:00:32
○A87.98.174.2522016-12-23 → 2018-07-13 · 5 obs
○ 2016-04-26 07:22:02
● 2016-12-23 00:41:12
● 2018-07-13 04:34:58
○ 2026-03-26 18:07:30
○ 2026-04-09 21:00:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
frd.nic.fr, f.ext.nic.fr, g.ext.nic.fr-
stdu.frns-53-c.gandi.net, ns-146-b.gandi.net, ns-129-a.gandi.net-

✅ Authoritative Response

Server:217.70.187.54

NS records: ns-53-c.gandi.net, ns-146-b.gandi.net, ns-129-a.gandi.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stdu.fr (unsigned zone)

⏱️ Timing

Total: 910ms | Queries: -

📄 Records

TypeCountSample Data
A151.178.98.213
NS3ns-53-c.gandi.net, ns-129-a.gandi.net...
MX1stdu-fr.mail.protection.outlook.com (pri
TXT1v=spf1 include:spf.protection.outlook.co
SOA1ns1.gandi.net hostmaster.gandi.net

Analysis

IP Addresses

stdu.fr points to a single IP: 51.178.98.213.

Other host names, for instance www.castres-olympique.com, cameldiam.fr, font-romeu.fr, gecos.fr and castres-olympique.com share IP numbers with stdu.fr.

Name Servers

stdu.fr is delegated to four name servers: ns-129-a.gandi.net, ns-146-b.gandi.net, ns-53-c.gandi.net and ns1.gandi.net.

stdu.fr at least partially shares its name servers with other domains, for instance canalmail.fr, wtra.ch, stb-kastl.de, phenixbox.fr and igraal.cash.

These name servers are commonly used with ns-50-c.gandi.net, ns-144-b.gandi.net, ns-194-b.gandi.net, ns-104-c.gandi.net, ns-129-c.gandi.net, ns-132-c.gandi.net and ns-250-c.gandi.net.

Host names with two IPs: ns-129-a.gandi.net points to 2001:4b98:aaaa::82 and 173.246.100.130; ns-146-b.gandi.net points to 2001:4b98:aaab::93 and 213.167.230.147; ns-53-c.gandi.net points to 2604:3400:aaac::36 and 217.70.187.54; ns1.gandi.net points to 2001:4b98:aaaa::2 and 173.246.100.2.

Mail Servers

stdu.fr is served by a single mail server, stdu-fr.mail.protection.outlook.com.

The host name stdu-fr.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca1e::, 2a01:111:f403:ca25::, 2a01:111:f403:ca25::1, 2a01:111:f403:ca25::2, 52.101.164.0, 52.101.166.0, 52.101.166.1 and 52.101.166.2.