21csi.com - robtex.com

21csi.com

DNSSEC⚠️ Not signed
A149.202.31.88🇫🇷 OVH149.202.0.0/16
PTRip88.ip-149-202-31.eu
NSns1.namebrightdns.com ⭐
A2600:1f18:683a:ae1a:165d:d9b5:87c0:94e0🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:7107:667d:570b:171e🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:36f4:3cd1:55dc:15🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.208.27.76🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-208-27-76.compute-1.amazonaws.com
A13.222.185.86🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
PTRec2-13-222-185-86.compute-1.amazonaws.com
NSns2.namebrightdns.com
A2600:1f18:683a:ae1a:1dc6:2e82:f754:42f2🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:5fd0:44f5:517a:9aeb🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A54.89.122.29🇺🇸 Amazon54.89.0.0/16 EC2 IAD prefix
PTRec2-54-89-122-29.compute-1.amazonaws.com
A54.210.156.168🇺🇸 Amazon54.210.0.0/16 EC2 IAD VPC Address Range
PTRec2-54-210-156-168.compute-1.amazonaws.com
A100.30.180.112🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix
PTRec2-100-30-180-112.compute-1.amazonaws.com
SOAns1.namebrightdns.comdns@namebright.com 2026-02-24 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435
WOT: SAFE (61/100)

Up

mail.21csi.com
www.21csi.com

Same first word

21csi.com

Similar names

isc21.kr
isc21.jp
cis21.com
isc21.com
isc21.co.jp
ics21.com
sci21.com
sic21.ro
12csi.com
21sci.com
21cis.net

DNS History

23 records (3 active, 20 former)

20162017201820192020202120222023202420252026NSns1.namebrightdns.comns2.namebrightdns.comdilbert.ns.cloudflare.comns1.dnsimple.comns1.fairyserver.comns1.sedoparking.comns2.dnsimple.comns2.fairyserver.comns2.sedoparking.comns3.dnsimple.comns4.dnsimple.comrosa.ns.cloudflare.comMXmail.nickstel.commailstore1.secureserver.netsmtp.secureserver.netA149.202.31.88104.27.148.175104.27.149.175153.126.184.1972606:4700:3032::681b:94af2606:4700:3035::681b:95af50.31.225.9372.52.4.121
○NSdilbert.ns.cloudflare.com2020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
○NSns1.dnsimple.com2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○NSns1.fairyserver.com2017-03-25 → 2017-03-25 · 4 obs
○ 2016-07-24 20:07:10
● 2017-03-25 16:57:54
○ 2020-02-18 21:46:36
○ 2026-02-24 18:02:04
●NSns1.namebrightdns.com2026-02-24 → 2026-02-24 · 3 obs
○ 2020-02-18 21:46:36
● 2026-02-24 01:32:14
● 2026-02-24 18:02:04
○NSns1.sedoparking.com2016-01-24 → 2016-07-24 · 5 obs
○ 2015-11-01 23:22:50
● 2016-01-24 06:20:30
● 2016-07-24 20:07:10
○ 2017-03-25 16:57:54
○ 2026-02-24 18:02:04
○NSns2.dnsimple.com2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○NSns2.fairyserver.com2017-03-25 → 2017-03-25 · 4 obs
○ 2016-07-24 20:07:10
● 2017-03-25 16:57:54
○ 2020-02-18 21:46:36
○ 2026-02-24 18:02:04
●NSns2.namebrightdns.com2026-02-24 → 2026-02-24 · 3 obs
○ 2020-02-18 21:46:36
● 2026-02-24 01:32:14
● 2026-02-24 18:02:04
○NSns2.sedoparking.com2016-01-24 → 2016-07-24 · 5 obs
○ 2015-11-01 23:22:50
● 2016-01-24 06:20:30
● 2016-07-24 20:07:10
○ 2017-03-25 16:57:54
○ 2026-02-24 18:02:04
○NSns3.dnsimple.com2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○NSns4.dnsimple.com2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○NSrosa.ns.cloudflare.com2020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
○MXmail.nickstel.com2016-01-24 → 2016-07-24 · 5 obs
○ 2015-11-01 23:22:50
● 2016-01-24 06:20:30
● 2016-07-24 20:07:10
○ 2017-03-25 16:57:54
○ 2026-02-24 18:02:04
○MXmailstore1.secureserver.net2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○MXsmtp.secureserver.net2015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○A104.27.148.1752020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
○A104.27.149.1752020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
●A149.202.31.882026-02-24 → 2026-02-24 · 3 obs
○ 2020-02-18 21:46:36
● 2026-02-24 01:32:14
● 2026-02-24 18:02:04
○A153.126.184.1972017-03-25 → 2017-03-25 · 4 obs
○ 2016-07-24 20:07:10
● 2017-03-25 16:57:54
○ 2020-02-18 21:46:36
○ 2026-02-24 18:02:04
○A2606:4700:3032::681b:94af2020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
○A2606:4700:3035::681b:95af2020-02-18 → 2020-02-18 · 4 obs
○ 2017-03-25 16:57:54
● 2020-02-18 21:46:36
○ 2026-02-24 01:32:14
○ 2026-02-24 18:02:04
○A50.31.225.932015-04-13 → 2015-11-01 · 4 obs
● 2015-04-13 14:15:16
● 2015-11-01 23:22:50
○ 2016-01-24 06:20:30
○ 2026-02-24 18:02:04
○A72.52.4.1212016-01-24 → 2016-07-24 · 5 obs
○ 2015-11-01 23:22:50
● 2016-01-24 06:20:30
● 2016-07-24 20:07:10
○ 2017-03-25 16:57:54
○ 2026-02-24 18:02:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
21csi.comns1.namebrightdns.com, ns2.namebrightdns.com10 records

✅ Authoritative Response

Server: 23.22.30.240

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 171ms | Queries: -

📄 Records

TypeCountSample Data
A1149.202.31.88
NS2ns1.namebrightdns.com, ns2.namebrightdns.com
SOA1ns1.namebrightdns.com dns.namebright.com

📌 Glue Records Collected

Total: 10

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

AI analysis

21csi.com is a parent of mail.21csi.com and www.21csi.com.

21csi.com points to IP number 149.202.31.88.

For instance, other host names gkmweb.com, mail.runmuzik.fr, mailspool.domlike.net, exil-kieler.net and ip88.ip-149-202-31.eu share IP numbers with 21csi.com.

21csi.com is delegated to two name servers: ns1.namebrightdns.com and ns2.namebrightdns.com.

21csi.com uses the same name server setup as other domains such as mail.lookmytrips.com, anthemhosting.com, forcomm.net, coatshield.com and paradise-malawi-cichlids.com.

21csi.com shares name servers with other domains at least partially, for example grmpf.com, moneyhousemortgage.com, bomclick.com, wotank.com and pubmedinfo.com.

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

Host names with five IP numbers:

ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:165d:d9b5:87c0:94e0, 2600:1f18:683a:ae1a:7107:667d:570b:171e, 2600:1f18:683a:ae1b:36f4:3cd1:55dc:15, 3.208.27.76 and 13.222.185.86; ns2.namebrightdns.com points to: 2600:1f18:683a:ae1a:1dc6:2e82:f754:42f2, 2600:1f18:683a:ae1b:5fd0:44f5:517a:9aeb, 54.89.122.29, 54.210.156.168 and 100.30.180.112.