concoursn.com - robtex.com
concoursn.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 109.234.164.18🇫🇷 O2SWITCH109.234.164.0/22 | ||||||
| PTR | 109-234-164-18.reverse.odns.fr | ||||||
| NS | ns1.o2switch.net ⭐ | ||||||
| A | 109.234.160.5🇫🇷 O2SWITCH109.234.160.0/24 o2switch Internet Routing | ||||||
| PTR | ns1.o2switch.net | ||||||
| NS | ns2.o2switch.net | ||||||
| A | 109.234.161.5🇫🇷 O2SWITCH109.234.161.0/24 o2switch Internet Routing | ||||||
| PTR | ns2.o2switch.net | ||||||
| MX | mail.concoursn.com ⭐ | ||||||
| A | 109.234.162.237🇫🇷 O2SWITCH109.234.162.0/24 o2switch Internet Routing | ||||||
| PTR | carlos.o2switch.net | ||||||
| TXT | v=spf1 include:_spf.google.com include:mail.feedblitz.com ~all | ||||||
| SOA | ns1.o2switch.netsystemshl@o2switch.fr 2026-03-20 #3 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774980597 | ||||||
rank #381691 in the tld
📈 Tranco rank: #413,078
Previously MX for
concoursn.com |
Same first word
concoursn.com |
DNS History
16 records (4 active, 12 former)
○NSdns1.registrar-servers.com2016-06-26 → 2020-03-30 · 5 obs
● 2016-06-26 04:55:04
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
○NSdns2.registrar-servers.com2016-06-26 → 2020-03-30 · 5 obs
● 2016-06-26 04:55:04
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
●NSns1.o2switch.net2026-02-15 → 2026-03-31 · 3 obs
● 2026-02-15 12:34:00
● 2026-03-31 18:12:22
●NSns2.o2switch.net2026-02-15 → 2026-03-31 · 3 obs
● 2026-02-15 12:34:00
● 2026-03-31 18:12:22
○NSns8345.hostgator.com2015-07-04 → 2016-03-07 · 4 obs
● 2016-03-07 21:26:58
○ 2016-06-26 04:55:04
○ 2026-03-31 18:12:22
○NSns8346.hostgator.com2015-07-04 → 2016-03-07 · 4 obs
● 2016-03-07 21:26:58
○ 2016-06-26 04:55:04
○ 2026-03-31 18:12:22
○MXconcoursn.com2015-07-04 → 2016-03-07 · 4 obs
● 2016-03-07 21:26:58
○ 2016-06-26 04:55:04
○ 2026-03-31 18:12:22
○MXeforward1.registrar-servers.com2020-03-30 → 2020-03-30 · 4 obs
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
○MXeforward2.registrar-servers.com2020-03-30 → 2020-03-30 · 4 obs
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
○MXeforward3.registrar-servers.com2020-03-30 → 2020-03-30 · 4 obs
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
○MXeforward4.registrar-servers.com2020-03-30 → 2020-03-30 · 4 obs
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
○MXeforward5.registrar-servers.com2020-03-30 → 2020-03-30 · 4 obs
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
●MXmail.concoursn.com2026-02-15 → 2026-03-31 · 3 obs
● 2026-02-15 12:34:00
● 2026-03-31 18:12:22
○A108.167.142.2312015-07-04 → 2016-03-07 · 4 obs
● 2016-03-07 21:26:58
○ 2016-06-26 04:55:04
○ 2026-03-31 18:12:22
●A109.234.164.182026-02-15 → 2026-03-31 · 3 obs
● 2026-02-15 12:34:00
● 2026-03-31 18:12:22
○A62.210.105.2302016-06-26 → 2020-03-30 · 5 obs
● 2016-06-26 04:55:04
● 2020-03-30 16:24:08
○ 2026-02-15 12:34:00
○ 2026-03-31 18:12:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| concoursn.com | ns1.o2switch.net, ns2.o2switch.net | - |
✅ Authoritative Response
Server:109.234.160.5
NS records: ns1.o2switch.net, ns2.o2switch.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concoursn.com (unsigned zone)
⏱️ Timing
Total: 485ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 109.234.164.18 |
| NS | 2 | ns2.o2switch.net, ns1.o2switch.net |
| MX | 1 | mail.concoursn.com (pri: 0) |
| TXT | 1 | v=spf1 include:_spf.google.com include:m |
| SOA | 1 | ns1.o2switch.net systemshl.o2switch.fr |
Analysis
IP Addresses
concoursn.com resolves to one IP number: 109.234.164.18.
Other host names, for instance cougarsurgeneve.ch, mype-consulting.com, blogoliste.fr, echternach.lu and nathnet.fr share IP numbers with concoursn.com.
Name Servers
concoursn.com's delegation uses two name servers: ns1.o2switch.net and ns2.o2switch.net.
concoursn.com uses the same name server setup as other domains, such as sidcao.ci, belle-en-bijoux.com, be-assistances.com, vivreaupays.fr and non-intervention.com.
concoursn.com at least partially shares name servers with other domains, for example deemonaco.com.
Host names with a single IP address: ns1.o2switch.net points to 109.234.160.5; ns2.o2switch.net points to 109.234.161.5.
Mail Servers
A single mail server handles concoursn.com, mail.concoursn.com.
Host name mail.concoursn.com resolves to a single IP: 109.234.162.237.