a21.one - robtex.com
a21.one
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a02:4780:27:1887:0:c98:4894:2🇫🇷 IIHOS0012a02:4780:27::/48 HOSTINGER FR | ||||||
| A | 147.79.103.128🇺🇸 IIHOS001147.79.96.0/21 HOSTINGER FR | ||||||
| NS | ns1.dns-parking.com ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:18c9🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.24.201Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.dns-parking.com | ||||||
| NS | ns2.dns-parking.com | ||||||
| A | 2400:cb00:2049:1::a29f:192a🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.25.42Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.dns-parking.com | ||||||
| MX | mx1.hostinger.com ⭐ | ||||||
| A | 2606:4700:90:0:c1f8:f874:2386:b61f🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.65.182.103🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mx2.hostinger.com(10) | ||||||
| A | 2606:4700:90:0:c1f8:f874:2386:b61f🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.65.182.103🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| TXT | v=spf1 include:_spf.mail.hostinger.com include:sendgrid.net ~all | ||||||
| SOA | ns1.dns-parking.comdns@hostinger.com 2026-04-09 #1 | ||||||
one
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.one ⭐ | ||||||
| NS | b.nic.one | ||||||
| NS | c.nic.one | ||||||
| NS | x.nic.one | ||||||
| NS | y.nic.one | ||||||
| NS | z.nic.one | ||||||
| SOA | a.nic.oneadmin@tldns.godaddy serial=1776266738 | ||||||
Previously MX for
a21.one |
Subdomains
www.a21.one |
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
●NSns1.dns-parking.com2026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
○NSns1.skytells.org2020-02-23 → 2020-02-23 · 3 obs
○ 2026-04-13 18:46:00
○ 2026-04-15 15:51:26
●NSns2.dns-parking.com2026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
○NSns2.skytells.org2020-02-23 → 2020-02-23 · 3 obs
○ 2026-04-13 18:46:00
○ 2026-04-15 15:51:26
○MXa21.one2020-02-23 → 2020-02-23 · 3 obs
○ 2026-04-13 18:46:00
○ 2026-04-15 15:51:26
●MXmx1.hostinger.com2026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
●MXmx2.hostinger.com2026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
●A147.79.103.1282026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
○A204.197.242.1272020-02-23 → 2020-02-23 · 3 obs
○ 2026-04-13 18:46:00
○ 2026-04-15 15:51:26
●A2a02:4780:27:1887:0:c98:4894:22026-04-13 → 2026-04-15 · 3 obs
● 2026-04-13 18:46:00
● 2026-04-15 15:51:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| one | a.nic.one, x.nic.one, c.nic.one, b.nic.one... | 12 records |
| a21.one | ns1.dns-parking.com, ns2.dns-parking.com | - |
✅ Authoritative Response
Server:162.159.24.201
NS records: ns1.dns-parking.com, ns2.dns-parking.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a21.one (unsigned zone)
⏱️ Timing
Total: 525ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.79.103.128 |
| AAAA | 1 | 2a02:4780:27:1887:0:c98:4894:2 |
| NS | 2 | ns2.dns-parking.com, ns1.dns-parking.com |
| MX | 2 | mx2.hostinger.com (pri: 10), mx1.hostinger.com (pri: 5) |
| TXT | 1 | v=spf1 include:_spf.mail.hostinger.com i |
| SOA | 1 | ns1.dns-parking.com dns.hostinger.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.one, b.nic.one, c.nic.one...)
Analysis
Hierarchy
The parent of www.a21.one is a21.one.
IP Addresses
a21.one points to two IP numbers: 2a02:4780:27:1887:0:c98:4894:2 and 147.79.103.128.
Other host names, such as medecin-remplacant.com and sigma-acoustique.com, share IP numbers with a21.one.
Name Servers
Two name servers ns1.dns-parking.com and ns2.dns-parking.com handle the delegation for a21.one.
a21.one shares the same name server setup as other domains, for example xpressarticles.com, ptramawijaya.com, famoushotweiner.com, freightercruises.com and michelawebstudio.it.
a21.one partially shares name servers with other domains, for example cbdoilselector.com and thetechnotricks.com.
Host names with two IP numbers:
ns1.dns-parking.com points to 2400:cb00:2049:1::a29f:18c9 and 162.159.24.201.
ns2.dns-parking.com points to 2400:cb00:2049:1::a29f:192a and 162.159.25.42.
Mail Servers
Two mail servers handle a21.one: mx1.hostinger.com and mx2.hostinger.com.
a21.one shares the same mail server setup as other domains, including chancebahamas.org, yuvamind.com, cartoriojaragua.com.br, gameofkarts.com and signsofseattle.com.
a21.one shares some mail servers with other domains, at least partially, for instance conectabiz.com.br, vprefer.com, benciinternationalacademy.com and e-xemplar.com.
Names with two IPs:
mx1.hostinger.com points to: 2606:4700:90:0:c1f8:f874:2386:b61f and 172.65.182.103.
mx2.hostinger.com points to: 2606:4700:90:0:c1f8:f874:2386:b61f and 172.65.182.103.
Names pointing to 2606:4700:90:0:c1f8:f874:2386:b61f: mx1.hostinger.com and mx2.hostinger.com.
Names pointing to 172.65.182.103: mx1.hostinger.com and mx2.hostinger.com.