mx.certificationbusiness.school - robtex.com
mx.certificationbusiness.school
| DNSSEC | ⚠️ Not signed | ||||||
| A | 62.149.128.72🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| PTR | mxd4.aruba.it | ||||||
| A | 62.149.128.74🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.151🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.154🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.157🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.160🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.163🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
| A | 62.149.128.166🇮🇹 ARUBA-ASN62.149.128.0/19 Aruba S.p.A. Network | ||||||
certificationbusiness.school
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:2a82🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:cddf🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.42.130Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.205.223🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | angelina.ns.cloudflare.com ⭐ | ||||||
| NS | chris.ns.cloudflare.com | ||||||
| MX | mx.certificationbusiness.school ⭐ | ||||||
| TXT | v=spf1 include:spf.sendinblue.com mx include:_6f23f8ebd20910869497220b07e73a3... | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.42.130, 172.67.205.223 | ||||||
| IPv6 hints | 2606:4700:3030::6815:2a82, 2606:4700:3037::ac43:cddf | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=91, name=cloudflare-ech.com | ||||||
| SOA | angelina.ns.cloudflare.comdns@cloudflare.com serial=2402728036 | ||||||
MX for
Same first word
Similar names
xm.com.ua |
xm.ru |
xm.de |
xm.cl |
xm.sk |
xm.se |
xm.hu |
xm.com.co |
xm.africa |
xm.fi |
xm.is |
xm.am |
xm.money |
xm.be |
xm.cz |
xm.hk.cn |
xm.fj.cn |
xm.pl |
xm.vn.ua |
xm.house |
xm.mk |
xm.com |
DNS History
8 records (8 active, 0 former)
●A62.149.128.1512026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.1542026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.1572026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.1602026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.1632026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.1662026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.722026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
●A62.149.128.742026-05-09 → 2026-05-11 · 2 obs
● 2026-05-11 02:27:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| school | v0n0.nic.school, v0n1.nic.school, v0n2.nic.school, v0n3.nic.school... | 12 records |
| certificationbusiness.school | chris.ns.cloudflare.com, angelina.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.194.232
NS records: chris.ns.cloudflare.com, angelina.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certificationbusiness.school (unsigned zone)
⏱️ Timing
Total: 472ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 8 | 62.149.128.157, 62.149.128.74... |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.school, v0n0.nic.school, v0n1.nic.school...)
Analysis
Mail Server Role
mx.certificationbusiness.school serves as the mail server for certificationbusiness.school.
IP Addresses
mx.certificationbusiness.school points to the following eight IP numbers: 62.149.128.72, 62.149.128.74, 62.149.128.151, 62.149.128.154, 62.149.128.157, 62.149.128.160, 62.149.128.163 and 62.149.128.166.
Other host names, for instance mx.fulltecno.it, mx.francescomarano.info, mx.assistenza-lavatrici.com, mx.artebenesseresardegna.com and mx.caialba.com share IP numbers with mx.certificationbusiness.school.