grandstudy.com - robtex.com

grandstudy.com

DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
NSns1.namebrightdns.com ⭐
A2600:1f18:683a:ae1a:512a:2e63:38a2:3ca2🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:be01:592a:2295:91e1🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:c3af:8b0c:f160:8428🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A98.80.11.217🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix
PTRec2-98-80-11-217.compute-1.amazonaws.com
A98.93.74.83🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix
PTRec2-98-93-74-83.compute-1.amazonaws.com
A100.30.231.64🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix
PTRec2-100-30-231-64.compute-1.amazonaws.com
NSnsg1.namebrightdns.com
A2600:1f18:683a:ae1a:e130:40df:7d2d:fff6🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:f80e:8935:6cfa:832c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:9414:8887:de85:4889🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:e449:b4d3:6fc5:764f🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A34.204.14.4🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
PTRec2-34-204-14-4.compute-1.amazonaws.com
A54.80.105.101🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix
PTRec2-54-80-105-101.compute-1.amazonaws.com
A54.157.216.183🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix
PTRec2-54-157-216-183.compute-1.amazonaws.com
A54.162.80.34🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix
PTRec2-54-162-80-34.compute-1.amazonaws.com
NSnsg2.namebrightdns.com
A2600:1f18:683a:ae1a:f295:30e3:4d6c:6523🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:fe72:ac88:f63a:41ec🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:552f:b85a:fdb3:d5d1🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:8f3d:e4bf:bfb8:c73c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A54.82.127.161🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix
PTRec2-54-82-127-161.compute-1.amazonaws.com
A54.90.179.167🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix
PTRec2-54-90-179-167.compute-1.amazonaws.com
A54.198.136.48🇺🇸 Amazon54.198.0.0/16 EC2 IAD prefix
PTRec2-54-198-136-48.compute-1.amazonaws.com
A54.242.26.178🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
PTRec2-54-242-26-178.compute-1.amazonaws.com
TXTv=spf1 -all
TXTafternic-verification-G9G3tM8T8EwEizzPzjGJWF
SOAns1.namebrightdns.comdns@namebright.com 2026-05-09 #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=1778334696

Same first word

grandstudy.ru
grandstudy.com

DNS History

21 records (7 active, 14 former)

20162017201820192020202120222023202420252026NSns1.namebrightdns.comnsg1.namebrightdns.comnsg2.namebrightdns.comns2.namebrightdns.comMXanmail.namebrightmail.comA13.223.25.842600:1f18:4ae:c605:dd5d:b838:5816:d7fb2600:1f18:4ae:c606:78d4:4260:db4e:aeee54.243.117.19752.200.243.12354.152.144.24354.174.31.25454.208.74.21554.209.90.8154.236.84.11154.82.156.1954.85.146.18654.85.54.2954.86.225.156CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.comhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com
●NSns1.namebrightdns.com2015-05-17 → 2026-05-09 · 6 obs
● 2015-05-17 23:34:46
○ 2015-10-29 08:33:00
● 2016-02-01 17:10:36
○ 2016-05-02 03:22:50
● 2017-01-25 20:17:02
● 2026-05-09 14:17:58
○NSns2.namebrightdns.com2015-05-17 → 2018-07-02 · 8 obs
● 2015-05-17 23:34:46
○ 2015-10-29 08:33:00
● 2016-02-01 17:10:36
○ 2016-05-02 03:22:50
● 2017-01-25 20:17:02
● 2018-07-02 11:24:00
○ 2026-02-25 19:58:48
○ 2026-05-09 14:17:58
●NSnsg1.namebrightdns.com2015-10-29 → 2026-05-09 · 8 obs
○ 2015-05-17 23:34:46
● 2015-10-29 08:33:00
○ 2016-02-01 17:10:36
● 2016-05-02 03:22:50
○ 2017-01-25 20:17:02
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
●NSnsg2.namebrightdns.com2015-10-29 → 2026-05-09 · 8 obs
○ 2015-05-17 23:34:46
● 2015-10-29 08:33:00
○ 2016-02-01 17:10:36
● 2016-05-02 03:22:50
○ 2017-01-25 20:17:02
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
○MXanmail.namebrightmail.com2015-05-17 → 2015-05-17 · 3 obs
● 2015-05-17 23:34:46
○ 2015-10-29 08:33:00
○ 2026-05-09 14:17:58
●A13.223.25.842026-02-25 → 2026-05-09 · 3 obs
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-02-25 → 2026-05-09 · 3 obs
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-02-25 → 2026-05-09 · 3 obs
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
○A52.200.243.1232016-05-02 → 2016-05-02 · 4 obs
○ 2016-02-01 17:10:36
● 2016-05-02 03:22:50
○ 2017-01-25 20:17:02
○ 2026-05-09 14:17:58
○A54.152.144.2432016-05-02 → 2016-05-02 · 4 obs
○ 2016-02-01 17:10:36
● 2016-05-02 03:22:50
○ 2017-01-25 20:17:02
○ 2026-05-09 14:17:58
○A54.174.31.2542015-10-29 → 2015-10-29 · 4 obs
○ 2015-05-17 23:34:46
● 2015-10-29 08:33:00
○ 2016-02-01 17:10:36
○ 2026-05-09 14:17:58
○A54.208.74.2152015-10-29 → 2015-10-29 · 4 obs
○ 2015-05-17 23:34:46
● 2015-10-29 08:33:00
○ 2016-02-01 17:10:36
○ 2026-05-09 14:17:58
○A54.209.90.812016-02-01 → 2016-02-01 · 4 obs
○ 2015-10-29 08:33:00
● 2016-02-01 17:10:36
○ 2016-05-02 03:22:50
○ 2026-05-09 14:17:58
○A54.236.84.1112015-05-17 → 2015-05-17 · 3 obs
● 2015-05-17 23:34:46
○ 2018-07-02 11:24:00
○ 2026-05-09 14:17:58
●A54.243.117.1972026-02-25 → 2026-05-09 · 3 obs
○ 2018-07-02 11:24:00
● 2026-02-25 19:58:48
● 2026-05-09 14:17:58
○A54.82.156.192017-01-25 → 2017-01-25 · 4 obs
○ 2016-05-02 03:22:50
● 2017-01-25 20:17:02
○ 2018-07-02 11:24:00
○ 2026-05-09 14:17:58
○A54.85.146.1862015-05-17 → 2015-05-17 · 3 obs
● 2015-05-17 23:34:46
○ 2018-07-02 11:24:00
○ 2026-05-09 14:17:58
○A54.85.54.292016-02-01 → 2016-02-01 · 4 obs
○ 2015-10-29 08:33:00
● 2016-02-01 17:10:36
○ 2016-05-02 03:22:50
○ 2026-05-09 14:17:58
○A54.86.225.1562017-01-25 → 2017-01-25 · 4 obs
○ 2016-05-02 03:22:50
● 2017-01-25 20:17:02
○ 2018-07-02 11:24:00
○ 2026-05-09 14:17:58
○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-17 → 2016-05-02 · 4 obs
● 2015-05-17 23:34:46
● 2016-05-02 03:22:50
○ 2017-01-25 20:17:02
○ 2026-05-09 14:17:58
○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-01-25 → 2018-07-02 · 5 obs
○ 2016-05-02 03:22:50
● 2017-01-25 20:17:02
● 2018-07-02 11:24:00
○ 2026-02-25 19:58:48
○ 2026-05-09 14:17:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
grandstudy.comnsg1.namebrightdns.com, nsg2.namebrightdns.com16 records

✅ Authoritative Response

Server:34.204.14.4

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for grandstudy.com (unsigned zone)

⏱️ Timing

Total: 286ms | Queries: -

📄 Records

TypeCountSample Data
A213.223.25.84, 54.243.117.197
AAAA22600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
NS2nsg2.namebrightdns.com, nsg1.namebrightdns.com
TXT2v=spf1 -all, afternic-verification-G9G3tM8T8EwEizzPzj
SOA1ns1.namebrightdns.com dns.namebright.com

📌 Glue Records Collected

Total: 16

Out-of-bailiwick: 16 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

grandstudy.com maps to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

Other host names, for instance alpharoger.com, pipingteam.com, alphacomputers.com, footmod.com and 5431ac23e137b22901904413031416301104927d952e75b0a480587bc828195.anycoding.com share IP numbers with grandstudy.com.

Name Servers

grandstudy.com is delegated to three name servers: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

grandstudy.com partially shares name servers with other domains; examples include obama28.com, ip-75-8-118-204.logicsouth.com, sarau.org, potfree.com and buildmvr.com.

These name servers are commonly used with ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with eight IP numbers:

nsg1.namebrightdns.com points to: 2600:1f18:683a:ae1a:e130:40df:7d2d:fff6, 2600:1f18:683a:ae1a:f80e:8935:6cfa:832c, 2600:1f18:683a:ae1b:9414:8887:de85:4889, 2600:1f18:683a:ae1b:e449:b4d3:6fc5:764f, 34.204.14.4, 54.80.105.101, 54.157.216.183 and 54.162.80.34.

nsg2.namebrightdns.com points to: 2600:1f18:683a:ae1a:f295:30e3:4d6c:6523, 2600:1f18:683a:ae1a:fe72:ac88:f63a:41ec, 2600:1f18:683a:ae1b:552f:b85a:fdb3:d5d1, 2600:1f18:683a:ae1b:8f3d:e4bf:bfb8:c73c, 54.82.127.161, 54.90.179.167, 54.198.136.48 and 54.242.26.178.

Host names with six IP numbers:

ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:512a:2e63:38a2:3ca2, 2600:1f18:683a:ae1a:be01:592a:2295:91e1, 2600:1f18:683a:ae1b:c3af:8b0c:f160:8428, 98.80.11.217, 98.93.74.83 and 100.30.231.64.