`vbmath.com`

DNSSEC	⚠️ Not signed
A	3.211.230.19^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-211-230-19.compute-1.amazonaws.com`
A	52.204.188.243^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
NS	`ns-1088.awsdns-08.org` ⭐
		A	2600:9000:5304:4000::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1088.awsdns-08.org`
		A	205.251.196.64^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1088.awsdns-08.org`
NS	`ns-1970.awsdns-54.co.uk`
		A	2600:9000:5307:b200::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1970.awsdns-54.co.uk`
		A	205.251.199.178^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1970.awsdns-54.co.uk`
NS	`ns-509.awsdns-63.com`
		A	2600:9000:5301:fd00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-509.awsdns-63.com`
		A	205.251.193.253^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-509.awsdns-63.com`
NS	`ns-926.awsdns-51.net`
		A	2600:9000:5303:9e00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-926.awsdns-51.net`
		A	205.251.195.158^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-926.awsdns-51.net`
TXT	`v=spf1 -all`
SOA	`ns-1088.awsdns-08.org`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783089106

Same first word

vbmath.com

Similar names

bhamtv.com

abhtvm.com

DNS History

44 records (6 active, 38 former)

●NSns-1088.awsdns-08.org2026-02-28 → 2026-07-03 · 3 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-07-03 14:33:26

●NSns-1970.awsdns-54.co.uk2026-02-28 → 2026-07-03 · 3 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-07-03 14:33:26

●NSns-509.awsdns-63.com2026-02-28 → 2026-07-03 · 3 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-07-03 14:33:26

●NSns-926.awsdns-51.net2026-02-28 → 2026-07-03 · 3 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-07-03 14:33:26

○NSns-master.mathworks.com2015-08-16 → 2017-12-26 · 4 obs

● 2015-08-16 19:15:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○NSns.mathworks.com2015-08-16 → 2017-12-26 · 4 obs

● 2015-08-16 19:15:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○NSns2.mathworks.com2015-08-16 → 2017-12-26 · 4 obs

● 2015-08-16 19:15:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○NSns3.mathworks.com2015-08-16 → 2017-12-26 · 4 obs

● 2015-08-16 19:15:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○A100.50.115.2042026-05-04 → 2026-05-14 · 5 obs

○ 2026-05-02 18:56:02
● 2026-05-04 18:11:34
● 2026-05-14 13:30:24
○ 2026-05-16 00:16:52
○ 2026-07-03 14:33:26

○A107.22.120.1312026-03-14 → 2026-03-16 · 5 obs

○ 2026-03-12 19:28:16
● 2026-03-14 18:18:52
● 2026-03-16 10:53:44
○ 2026-03-21 21:13:10
○ 2026-07-03 14:33:26

○A144.212.130.172015-08-16 → 2017-12-26 · 7 obs

● 2015-08-16 19:15:00
○ 2015-10-29 18:48:26
○ 2016-01-14 20:48:20
● 2016-04-08 22:38:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○A144.212.244.172015-08-16 → 2017-12-26 · 4 obs

● 2015-08-16 19:15:00
● 2017-12-26 21:53:28
○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○A18.205.148.1402026-02-28 → 2026-03-12 · 5 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-03-12 19:28:16
○ 2026-03-14 18:18:52
○ 2026-07-03 14:33:26

○A18.210.184.2432026-02-28 → 2026-07-03 · 2 obs

○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

●A3.211.230.192026-07-03 → 2026-07-03 · 3 obs

○ 2026-06-19 20:36:26
● 2026-07-03 09:37:46
● 2026-07-03 14:33:26

○A3.85.67.632026-02-28 → 2026-07-03 · 2 obs

○ 2026-02-28 20:43:26
○ 2026-07-03 14:33:26

○A34.202.67.342026-06-01 → 2026-06-01 · 4 obs

○ 2026-05-25 14:07:26
● 2026-06-01 02:29:18
○ 2026-06-01 06:19:28
○ 2026-07-03 14:33:26

○A34.203.55.2032026-05-16 → 2026-05-16 · 4 obs

○ 2026-05-14 13:30:24
● 2026-05-16 00:16:52
○ 2026-05-25 14:07:26
○ 2026-07-03 14:33:26

○A34.230.229.152026-05-02 → 2026-05-02 · 5 obs

○ 2026-04-28 21:18:02
● 2026-05-02 10:55:38
● 2026-05-02 18:56:02
○ 2026-05-04 18:11:34
○ 2026-07-03 14:33:26

○A34.237.103.1262026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-22 15:59:46
● 2026-03-28 17:19:46
○ 2026-04-24 15:23:42
○ 2026-07-03 14:33:26

○A34.239.7.2122026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-14 02:29:54
● 2026-06-16 00:10:28
○ 2026-06-19 20:36:26
○ 2026-07-03 14:33:26

○A35.168.132.1552026-05-16 → 2026-05-16 · 4 obs

○ 2026-05-14 13:30:24
● 2026-05-16 00:16:52
○ 2026-05-25 14:07:26
○ 2026-07-03 14:33:26

○A44.205.87.452026-04-24 → 2026-04-24 · 4 obs

○ 2026-03-28 17:19:46
● 2026-04-24 15:23:42
○ 2026-04-28 21:18:02
○ 2026-07-03 14:33:26

○A50.16.29.2342026-06-04 → 2026-06-09 · 5 obs

○ 2026-06-01 06:19:28
● 2026-06-04 11:45:22
● 2026-06-09 10:02:34
○ 2026-06-14 02:29:54
○ 2026-07-03 14:33:26

○A52.20.48.2412026-06-19 → 2026-06-19 · 4 obs

○ 2026-06-16 00:10:28
● 2026-06-19 20:36:26
○ 2026-07-03 09:37:46
○ 2026-07-03 14:33:26

○A52.202.217.972026-03-14 → 2026-03-16 · 5 obs

○ 2026-03-12 19:28:16
● 2026-03-14 18:18:52
● 2026-03-16 10:53:44
○ 2026-03-21 21:13:10
○ 2026-07-03 14:33:26

○A52.204.17.2322026-06-01 → 2026-06-01 · 4 obs

○ 2026-06-01 02:29:18
● 2026-06-01 06:19:28
○ 2026-06-04 11:45:22
○ 2026-07-03 14:33:26

●A52.204.188.2432026-07-03 → 2026-07-03 · 3 obs

○ 2026-06-19 20:36:26
● 2026-07-03 09:37:46
● 2026-07-03 14:33:26

○A52.205.231.182026-05-25 → 2026-06-01 · 5 obs

○ 2026-05-16 00:16:52
● 2026-05-25 14:07:26
● 2026-06-01 02:29:18
○ 2026-06-01 06:19:28
○ 2026-07-03 14:33:26

○A52.23.75.1792026-06-04 → 2026-06-09 · 5 obs

○ 2026-06-01 06:19:28
● 2026-06-04 11:45:22
● 2026-06-09 10:02:34
○ 2026-06-14 02:29:54
○ 2026-07-03 14:33:26

○A52.4.140.2032026-02-28 → 2026-03-12 · 5 obs

○ 2017-12-26 21:53:28
● 2026-02-28 20:43:26
● 2026-03-12 19:28:16
○ 2026-03-14 18:18:52
○ 2026-07-03 14:33:26

○A52.44.19.572026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-14 02:29:54
● 2026-06-16 00:10:28
○ 2026-06-19 20:36:26
○ 2026-07-03 14:33:26

○A52.45.217.2312026-04-24 → 2026-05-04 · 5 obs

○ 2026-03-28 17:19:46
● 2026-04-24 15:23:42
● 2026-05-04 18:11:34
○ 2026-05-08 02:51:00
○ 2026-07-03 14:33:26

○A52.55.6.1322026-06-14 → 2026-06-14 · 4 obs

○ 2026-06-09 10:02:34
● 2026-06-14 02:29:54
○ 2026-06-16 00:10:28
○ 2026-07-03 14:33:26

○A52.71.104.1282026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-22 15:59:46
● 2026-03-28 17:19:46
○ 2026-04-24 15:23:42
○ 2026-07-03 14:33:26

○A54.157.51.1852026-03-21 → 2026-03-22 · 5 obs

○ 2026-03-16 10:53:44
● 2026-03-21 21:13:10
● 2026-03-22 15:59:46
○ 2026-03-28 17:19:46
○ 2026-07-03 14:33:26

○A54.163.67.462026-05-14 → 2026-05-14 · 4 obs

○ 2026-05-13 05:39:16
● 2026-05-14 13:30:24
○ 2026-05-16 00:16:52
○ 2026-07-03 14:33:26

○A54.224.205.962026-06-14 → 2026-06-14 · 4 obs

○ 2026-06-09 10:02:34
● 2026-06-14 02:29:54
○ 2026-06-16 00:10:28
○ 2026-07-03 14:33:26

○A54.83.137.2532026-06-19 → 2026-06-19 · 4 obs

○ 2026-06-16 00:10:28
● 2026-06-19 20:36:26
○ 2026-07-03 09:37:46
○ 2026-07-03 14:33:26

○A98.87.100.2032026-03-21 → 2026-03-22 · 5 obs

○ 2026-03-16 10:53:44
● 2026-03-21 21:13:10
● 2026-03-22 15:59:46
○ 2026-03-28 17:19:46
○ 2026-07-03 14:33:26

○A98.87.130.1642026-06-01 → 2026-06-01 · 4 obs

○ 2026-06-01 02:29:18
● 2026-06-01 06:19:28
○ 2026-06-04 11:45:22
○ 2026-07-03 14:33:26

○A98.89.101.2152026-05-25 → 2026-05-25 · 4 obs

○ 2026-05-16 00:16:52
● 2026-05-25 14:07:26
○ 2026-06-01 02:29:18
○ 2026-07-03 14:33:26

○A98.90.121.522026-04-28 → 2026-04-28 · 4 obs

○ 2026-04-24 15:23:42
● 2026-04-28 21:18:02
○ 2026-05-02 10:55:38
○ 2026-07-03 14:33:26

○A98.90.13.2172026-05-08 → 2026-05-13 · 5 obs

○ 2026-05-04 18:11:34
● 2026-05-08 02:51:00
● 2026-05-13 05:39:16
○ 2026-05-14 13:30:24
○ 2026-07-03 14:33:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net...	-
vbmath.com	ns-509.awsdns-63.com, ns-926.awsdns-51.net, ns-1088.awsdns-08.org, ns-1970.awsdns-54.co.uk	2 records

✅ Authoritative Response

Server:205.251.195.158

NS records: ns-509.awsdns-63.com, ns-926.awsdns-51.net, ns-1088.awsdns-08.org, ns-1970.awsdns-54.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vbmath.com (unsigned zone)

⏱️ Timing

Total: 504ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`52.204.188.243, 3.211.230.19`
NS	4	`ns-1088.awsdns-08.org, ns-1970.awsdns-54.co.uk...`
TXT	1	`v=spf1 -all`
SOA	1	`ns-1088.awsdns-08.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-509.awsdns-63.com, ns-509.awsdns-63.com)

Analysis

IP Addresses

vbmath.com directs to two IP numbers, 3.211.230.19 and 52.204.188.243

matlab.sg, www.simulink.academy, mathworks.hu plus two other host names have IP numbers in common with vbmath.com.

Name Servers

Four name servers handle the delegation for vbmath.com: ns-509.awsdns-63.com, ns-926.awsdns-51.net, ns-1088.awsdns-08.org and ns-1970.awsdns-54.co.uk.

vbmath.com has at least partial name server overlap with other domains, such as acere.net, taftiandco.com, dghd9pgzqz7hv.cloudfront.net and two others.

These name servers tend to appear together with the name servers ns-1000.awsdns-61.net, ns-1290.awsdns-33.org and ns-1704.awsdns-21.co.uk.

ns-509.awsdns-63.com, ns-926.awsdns-51.net, ns-1088.awsdns-08.org and ns-1970.awsdns-54.co.uk all point to exactly two IP numbers each: ns-509.awsdns-63.com → 205.251.193.253 and 2600:9000:5301:fd00::1; ns-926.awsdns-51.net → 205.251.195.158 and 2600:9000:5303:9e00::1; ns-1088.awsdns-08.org → 205.251.196.64 and 2600:9000:5304:4000::1; ns-1970.awsdns-54.co.uk → 205.251.199.178 and 2600:9000:5307:b200::1.

vbmath.com - robtex.com

vbmath.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`vbmath.com`

`com`