`mathshed.com`

DNSSEC	⚠️ Not signed
A	13.226.238.40^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
		PTR	`server-13-226-238-40.iad61.r.cloudfront.net`
A	13.226.238.49^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
A	13.226.238.55^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
A	13.226.238.103^{🇺🇸 Amazon13.226.232.0/21 - Cloudfront}
NS	`ns-761.awsdns-31.net` ⭐
		A	2600:9000:5302:f900::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-761.awsdns-31.net`
		A	205.251.194.249^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-761.awsdns-31.net`
NS	`ns-1169.awsdns-18.org` ⚠️ Not in parent delegation
		A	2600:9000:5304:9100::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1169.awsdns-18.org`
		A	205.251.196.145^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1169.awsdns-18.org`
NS	`ns-1744.awsdns-26.co.uk`
		A	2600:9000:5306:d000::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1744.awsdns-26.co.uk`
		A	205.251.198.208^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1744.awsdns-26.co.uk`
NS	`ns-369.awsdns-46.com` ⚠️ Not in parent delegation
		A	2600:9000:5301:7100::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-369.awsdns-46.com`
		A	205.251.193.113^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-369.awsdns-46.com`
MX	`mathshed-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::2^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo0p265cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00601.inbound.protection.outlook.com`
		A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo3p265cu00302.inbound.protection.outlook.com`
		A	52.101.99.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00600.inbound.protection.outlook.com`
TXT	`MS=ms85715091`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns-761.awsdns-31.net`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=1771291435

Up

www.mathshed.com

Same first word

mathshed.com

DNS History

25 records (9 active, 16 former)

●NSns-1169.awsdns-18.org2026-02-17 → 2026-02-26 · 3 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-26 10:44:14

●NSns-1744.awsdns-26.co.uk2026-02-17 → 2026-02-26 · 3 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-26 10:44:14

●NSns-369.awsdns-46.com2026-02-17 → 2026-02-26 · 3 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-26 10:44:14

●NSns-761.awsdns-31.net2026-02-17 → 2026-02-26 · 3 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-26 10:44:14

○NSns1.parkingcrew.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 22:41:20
○ 2018-07-19 08:51:18
○ 2026-02-26 10:44:14

○NSns2.parkingcrew.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 22:41:20
○ 2018-07-19 08:51:18
○ 2026-02-26 10:44:14

○MXmail.h-email.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 22:41:20
○ 2018-07-19 08:51:18
○ 2026-02-26 10:44:14

●MXmathshed-com.mail.protection.outlook.com2026-02-17 → 2026-02-26 · 3 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-26 10:44:14

○A108.138.217.1042026-02-17 → 2026-02-26 · 2 obs

○ 2026-02-17 16:39:04
○ 2026-02-26 10:44:14

○A108.138.217.142026-02-17 → 2026-02-26 · 2 obs

○ 2026-02-17 16:39:04
○ 2026-02-26 10:44:14

○A108.138.217.342026-02-17 → 2026-02-26 · 2 obs

○ 2026-02-17 16:39:04
○ 2026-02-26 10:44:14

○A108.138.217.502026-02-17 → 2026-02-26 · 2 obs

○ 2026-02-17 16:39:04
○ 2026-02-26 10:44:14

●A13.226.238.1032026-02-20 → 2026-02-26 · 13 obs

○ 2026-02-18 04:21:58
● 2026-02-20 11:32:26
○ 2026-02-20 13:02:48
○ 2026-02-20 21:04:56
● 2026-02-21 11:36:40
○ 2026-02-21 12:39:26
● 2026-02-21 16:08:48
○ 2026-02-21 19:04:12
○ 2026-02-25 09:03:08
● 2026-02-25 21:51:58
○ 2026-02-25 23:03:08
● 2026-02-26 10:44:08
● 2026-02-26 10:44:14

●A13.226.238.402026-02-20 → 2026-02-26 · 13 obs

●A13.226.238.492026-02-20 → 2026-02-26 · 13 obs

●A13.226.238.552026-02-20 → 2026-02-26 · 13 obs

○A185.53.178.62016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 22:41:20
○ 2018-07-19 08:51:18
○ 2026-02-26 10:44:14

○A216.137.53.1132026-02-17 → 2026-02-25 · 17 obs

○ 2018-07-19 08:51:18
● 2026-02-17 16:39:04
● 2026-02-18 04:21:58
○ 2026-02-20 11:32:26
● 2026-02-20 13:02:48
● 2026-02-20 21:04:56
○ 2026-02-21 11:36:40
● 2026-02-21 12:39:26
○ 2026-02-21 16:08:48
● 2026-02-21 19:04:12
● 2026-02-22 21:05:06
○ 2026-02-25 06:10:50
● 2026-02-25 09:03:08
○ 2026-02-25 21:51:58
● 2026-02-25 23:03:08
○ 2026-02-26 10:44:08
○ 2026-02-26 10:44:14

○A216.137.53.642026-02-17 → 2026-02-25 · 17 obs

○A216.137.53.712026-02-17 → 2026-02-25 · 17 obs

○A216.137.53.992026-02-17 → 2026-02-25 · 17 obs

○A52.222.244.1002026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-22 21:05:06
● 2026-02-25 06:10:50
○ 2026-02-25 09:03:08
○ 2026-02-26 10:44:14

○A52.222.244.362026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-22 21:05:06
● 2026-02-25 06:10:50
○ 2026-02-25 09:03:08
○ 2026-02-26 10:44:14

○A52.222.244.742026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-22 21:05:06
● 2026-02-25 06:10:50
○ 2026-02-25 09:03:08
○ 2026-02-26 10:44:14

○A52.222.244.972026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-22 21:05:06
● 2026-02-25 06:10:50
○ 2026-02-25 09:03:08
○ 2026-02-26 10:44:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mathshed.com	ns-761.awsdns-31.net, ns-1744.awsdns-26.co.uk	-

✅ Authoritative Response

Server: 205.251.194.249

NS records: ns-761.awsdns-31.net, ns-1744.awsdns-26.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathshed.com (unsigned zone)

⏱️ Timing

Total: 762ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.226.238.55, 13.226.238.103...`
NS	4	`ns-1169.awsdns-18.org, ns-1744.awsdns-26.co.uk...`
MX	1	`mathshed-com.mail.protection.outlook.com`
TXT	2	`MS=ms85715091, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns-761.awsdns-31.net awsdns-hostmaster.a`

AI analysis

The parent of www.mathshed.com is mathshed.com.

mathshed.com maps to four IP numbers: 13.226.238.40, 13.226.238.49, 13.226.238.55 and 13.226.238.103.

Other host names such as www.formity.eu, d2jbfrwvqlgcqa.cloudfront.net, cblack.com, starjack.com and d15kq6sooxuamv.cloudfront.net share IPs with mathshed.com.

mathshed.com is delegated to four name servers: ns-369.awsdns-46.com, ns-761.awsdns-31.net, ns-1169.awsdns-18.org and ns-1744.awsdns-26.co.uk.

mathshed.com at least partially shares name servers with other domains, for example gurov.us, trekpleisterdagjeweg.nl, replenishmedical.net, phonak.ca and dezerv.xyz.

These name servers are commonly used with ns-204.awsdns-25.com and ns-1306.awsdns-35.org and ns-1716.awsdns-22.co.uk.

Host names with two IP numbers:

ns-369.awsdns-46.com points to: 2600:9000:5301:7100::1 and 205.251.193.113

ns-761.awsdns-31.net points to: 2600:9000:5302:f900::1 and 205.251.194.249

ns-1169.awsdns-18.org points to: 2600:9000:5304:9100::1 and 205.251.196.145

ns-1744.awsdns-26.co.uk points to: 2600:9000:5306:d000::1 and 205.251.198.208

The mathshed-com.mail.protection.outlook.com mail server handles mathshed.com.

mathshed-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca0b::, 2a01:111:f403:ca0b::2, 2a01:111:f403:ca1a::, 2a01:111:f403:ca1a::1, 52.101.89.0, 52.101.89.1, 52.101.89.2 and 52.101.99.0.

mathshed.com - robtex.com

mathshed.com

com

Up

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

AI analysis

`mathshed.com`

`com`