mail.21day.com - robtex.com

mail.21day.com

DNSSEC⚠️ Not signed
A188.214.128.77🇱🇹 CHERRYSERVERS1-AS188.214.128.0/21 CHERRY SERVERS
PTRvps2.customhost.com
NSns1.namebrightdns.com ⚠️ Not in parent delegation
A2600:1f18:683a:ae1a:941d:603c:10ae:a55b🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:b388:33d7:6b80:b869🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:76c:f6ba:3590:e429🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:852a:590e:7ebc:38bf🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.87.120.121🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-87-120-121.compute-1.amazonaws.com
A18.209.99.9🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-209-99-9.compute-1.amazonaws.com
A54.221.97.121🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix
PTRec2-54-221-97-121.compute-1.amazonaws.com
NSns2.namebrightdns.com ⚠️ Not in parent delegation
A2600:1f18:683a:ae1b:bf91:b34b:ccd0:1e3c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A54.211.194.65🇺🇸 Amazon54.211.0.0/16 EC2 IAD prefix
PTRec2-54-211-194-65.compute-1.amazonaws.com
A54.221.2.15🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix
PTRec2-54-221-2-15.compute-1.amazonaws.com

21day.com

DNSSEC⚠️ Not signed
A188.214.128.77🇱🇹 CHERRYSERVERS1-AS188.214.128.0/21 CHERRY SERVERS
NSns1.namebrightdns.com ⭐
NSns2.namebrightdns.com
MXrack-host.net ⭐
SOAns1.namebrightdns.comdns@namebright.com 2026-04-11 #1

Previously MX for

21day.com

Same first word

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DNS History

4 records (3 active, 1 former)

20162017201820192020202120222023202420252026NSns1.namebrightdns.comns2.namebrightdns.comA188.214.128.7723.229.202.225
●NSns1.namebrightdns.com2026-04-11 → 2026-04-11 · 1 obs
● 2026-04-11 22:10:18
●NSns2.namebrightdns.com2026-04-11 → 2026-04-11 · 1 obs
● 2026-04-11 22:10:18
●A188.214.128.772026-04-11 → 2026-04-11 · 2 obs
○ 2016-04-09 14:20:16
● 2026-04-11 22:10:18
○A23.229.202.2252015-08-23 → 2016-04-09 · 3 obs
● 2015-08-23 05:42:48
● 2016-04-09 14:20:16
○ 2026-04-11 22:10:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net, i.gtld-servers.net...-
21day.comns1.namebrightdns.com, ns2.namebrightdns.com10 records

✅ Authoritative Response

Server:18.209.99.9

NS records: ns1.namebrightdns.com, ns2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21day.com (unsigned zone)

⏱️ Timing

Total: 110ms | Queries: -

📄 Records

TypeCountSample Data
A1188.214.128.77
NS2ns2.namebrightdns.com, ns1.namebrightdns.com

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns1.namebrightdns.com, ns1.namebrightdns.com, ns1.namebrightdns.com...)

Analysis

IP Addresses

mail.21day.com resolves to one IP number: 188.214.128.77.

other host names including seemysite.com, carslap.com, swimcup.com, transitioning.org and thinkover.com share IP numbers with mail.21day.com.

Name Servers

mail.21day.com is delegated to two name servers ns1.namebrightdns.com and ns2.namebrightdns.com.

mail.21day.com shares the same name server setup as other domains, for instance nathaliecodant.com, afoodexperience.net, takehaya.com, e.7.1.f.1.6.d.a.3.6.7.4.a.d.d.2.7.5.2.1.a.4.0.0.0.8.7.4.2.0.a.2.ip6.arpa and aviationtodaytv.com.

mail.21day.com at least partially shares name servers with other domains, for instance lakerstime.com, shophw.com, ptrim.com, mizami.com and agentreputation.com.

these name servers are often used together with nsg1.namebrightdns.com, nsg2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with seven IP numbers: ns1.namebrightdns.com points to 2600:1f18:683a:ae1a:941d:603c:10ae:a55b, 2600:1f18:683a:ae1a:b388:33d7:6b80:b869, 2600:1f18:683a:ae1b:76c:f6ba:3590:e429, 2600:1f18:683a:ae1b:852a:590e:7ebc:38bf, 3.87.120.121, 18.209.99.9 and 54.221.97.121.

Host names with three IP numbers: ns2.namebrightdns.com points to 2600:1f18:683a:ae1b:bf91:b34b:ccd0:1e3c, 54.211.194.65 and 54.221.2.15.