coursinforev.org - robtex.com
coursinforev.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.210.104.190🇫🇷 OVH51.210.0.0/16 | ||||||
| PTR | vps-27910972.vps.ovh.net | ||||||
| NS | dns19.ovh.net ⭐ | ||||||
| A | 2001:41d0:d00:f800::2🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | dns19.ovh.net | ||||||
| A | 5.135.216.9🇫🇷 OVH5.135.0.0/16 | ||||||
| PTR | dns19.ovh.net | ||||||
| NS | ns19.ovh.net | ||||||
| A | 2001:41d0:b00:f200::2🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | ns19.ovh.net | ||||||
| A | 5.135.36.129🇧🇪 OVH5.135.0.0/16 | ||||||
| PTR | ns19.ovh.net | ||||||
| MX | mx1.ovh.net ⭐ | ||||||
| A | 188.165.47.122🇫🇷 OVH188.165.0.0/16 ISP Paris, France | ||||||
| PTR | mx1.ovh.net | ||||||
| MX | mx2.ovh.net(5) | ||||||
| A | 87.98.132.45🇫🇷 OVH87.98.128.0/17 ISP Paris, France | ||||||
| PTR | mx2.ovh.net | ||||||
| MX | mxb.ovh.net(100) | ||||||
| A | 46.105.45.21🇫🇷 OVH46.105.0.0/16 ISP Paris, France | ||||||
| PTR | mxb.ovh.net | ||||||
| TXT | google-site-verification=-KHOxOAIoibulvLFfv_u-oYLlrD814eZCOWD7_RDvy4 | ||||||
| TXT | v=spf1 include:mx.ovh.com ~all | ||||||
| SOA | dns19.ovh.nettech@ovh.net 2020-10-20 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784967926 | ||||||
Subdomains
www.coursinforev.org |
Same first word
coursinforev.org |
DNS History
7 records (6 active, 1 former)
●A51.210.104.1902026-03-10 → 2026-07-25 · 3 obs
● 2026-03-10 06:24:16
● 2026-07-25 08:36:48
○A92.222.37.2472015-07-22 → 2017-02-09 · 4 obs
● 2017-02-09 19:46:24
○ 2026-03-10 06:24:16
○ 2026-07-25 08:36:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| coursinforev.org | ns19.ovh.net, dns19.ovh.net | - |
✅ Authoritative Response
Server:5.135.216.9
NS records: ns19.ovh.net, dns19.ovh.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursinforev.org (unsigned zone)
⏱️ Timing
Total: 903ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.210.104.190 |
| NS | 2 | dns19.ovh.net, ns19.ovh.net |
| MX | 3 | mxb.ovh.net (pri: 100), mx2.ovh.net (pri: 5)... |
| TXT | 2 | google-site-verification=-KHOxOAIoibulvL, v=spf1 include:mx.ovh.com ~all |
| SOA | 1 | dns19.ovh.net tech.ovh.net |
Analysis
Hierarchy
www.coursinforev.org is delegated beneath coursinforev.org.
IP Addresses
coursinforev.org points to a single IP number: 51.210.104.190.
vps-27910972.vps.ovh.net is an example of another host name that shares IP numbers with coursinforev.org.
Name Servers
coursinforev.org has two authoritative name servers — dns19.ovh.net and ns19.ovh.net.
coursinforev.org shares its name server setup with other domains, including brosauto.fr, atakor.lu, francearcherie.com and two others.
The name servers for coursinforev.org overlap at least partially with those of other domains — for example exclusive.tn.
Both dns19.ovh.net and ns19.ovh.net have two IP addresses each. dns19.ovh.net resolves to 5.135.216.9 and 2001:41d0:d00:f800::2; ns19.ovh.net resolves to 5.135.36.129 and 2001:41d0:b00:f200::2.
Mail Servers
Incoming mail for coursinforev.org is delivered via three mail servers: mx1.ovh.net, mx2.ovh.net and mxb.ovh.net.
coursinforev.org shares mail servers — at least in part — with other domains, including mymoneyhelp.fr, sideral-communication.com, nghs.fr and two others.
These mail servers are routinely seen in conjunction with the mail servers mx3.ovh.net and mx4.ovh.net.
Each of the three hostnames points to exactly one IP address: mx1.ovh.net points to 188.165.47.122, mx2.ovh.net points to 87.98.132.45 and mxb.ovh.net points to 46.105.45.21.