sdtlearning.com - dns.ninja

`sdtlearning.com`

DNSSEC	⚠️ Not signed
A	209.216.87.69^{🇺🇸 ACEHOST-TPA01209.216.87.0/24}
		PTR	`ns205.webmasters.com`
NS	`ns205.webmasters.com` ⭐
		A	209.216.87.69^{🇺🇸 ACEHOST-TPA01209.216.87.0/24}
			PTR	`ns205.webmasters.com`
NS	`dns1.webmasters.com`
		A	51.81.90.59^{🇺🇸 OVH51.81.0.0/17 Hosting route}
			PTR	`dns1.webmasters.com`
NS	`dns2.webmasters.com`
		A	209.216.86.8^{🇺🇸 ACEHOST-TPA01209.216.86.0/24}
			PTR	`dns2.webmasters.com`
NS	`dns3.webmasters.com`
		A	209.216.88.8^{🇺🇸 ACEHOST-TPA01209.216.88.0/24}
			PTR	`dns3.webmasters.com`
NS	`dns4.webmasters.com`
		A	51.81.250.19^{🇺🇸 OVH51.81.128.0/17 Hosting route}
			PTR	`dns4.webmasters.com`
MX	`sdtlearning-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:c927::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr21cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	52.101.10.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00302.inbound.protection.outlook.com`
		A	52.101.11.19^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr04cu00203.inbound.protection.outlook.com`
		A	52.101.41.58^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr02cu00102.inbound.protection.outlook.com`
		A	52.101.42.16^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00300.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com ip4:209.216.87.69 ip4:8.38.88.142 ~all`
SOA	`ns205.webmasters.com`admin@webmasters.com serial=952591094

`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=1782935991

Same first word

sdtlearning.com

Similar names

trendsignal.us

ginsterland.de

tannedgirls.com

trendsignal.ca

starlending.net

DNS History

12 records (7 active, 5 former)

●NSdns1.webmasters.com2026-02-28 → 2026-07-01 · 3 obs

○ 2020-01-13 17:54:08
● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

●NSdns2.webmasters.com2026-02-28 → 2026-07-01 · 3 obs

○ 2020-01-13 17:54:08
● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

●NSdns3.webmasters.com2026-02-28 → 2026-07-01 · 3 obs

○ 2020-01-13 17:54:08
● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

●NSdns4.webmasters.com2026-02-28 → 2026-07-01 · 3 obs

○ 2020-01-13 17:54:08
● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

○NSlink.sdtpr.com2015-08-06 → 2020-01-13 · 4 obs

● 2015-08-06 07:49:18
● 2020-01-13 17:54:08
○ 2026-02-28 20:35:34
○ 2026-07-01 20:02:58

○NSns2.mydyndns.org2015-08-06 → 2020-01-13 · 4 obs

● 2015-08-06 07:49:18
● 2020-01-13 17:54:08
○ 2026-02-28 20:35:34
○ 2026-07-01 20:02:58

●NSns205.webmasters.com2026-02-28 → 2026-07-01 · 3 obs

○ 2020-01-13 17:54:08
● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

○NSns3.mydyndns.org2015-08-06 → 2020-01-13 · 4 obs

● 2015-08-06 07:49:18
● 2020-01-13 17:54:08
○ 2026-02-28 20:35:34
○ 2026-07-01 20:02:58

○NSns4.mydyndns.org2015-08-06 → 2020-01-13 · 4 obs

● 2015-08-06 07:49:18
● 2020-01-13 17:54:08
○ 2026-02-28 20:35:34
○ 2026-07-01 20:02:58

○NSns5.mydyndns.org2015-08-06 → 2020-01-13 · 4 obs

● 2015-08-06 07:49:18
● 2020-01-13 17:54:08
○ 2026-02-28 20:35:34
○ 2026-07-01 20:02:58

●MXsdtlearning-com.mail.protection.outlook.com2016-03-16 → 2026-07-01 · 2 obs

● 2016-03-16 15:29:44
● 2026-07-01 20:02:58

●A209.216.87.692026-02-28 → 2026-07-01 · 2 obs

● 2026-02-28 20:35:34
● 2026-07-01 20:02:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net...	-
sdtlearning.com	dns1.webmasters.com, dns2.webmasters.com, dns3.webmasters.com, dns4.webmasters.com	4 records

✅ Authoritative Response

Server:51.81.250.19

NS records: dns1.webmasters.com, dns2.webmasters.com, dns3.webmasters.com, dns4.webmasters.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sdtlearning.com (unsigned zone)

⏱️ Timing

Total: 318ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`209.216.87.69`
NS	4	`dns2.webmasters.com, dns1.webmasters.com...`
MX	1	`sdtlearning-com.mail.protection.outlook.`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns205.webmasters.com admin.webmasters.co`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.webmasters.com, dns2.webmasters.com, dns3.webmasters.com...)

Analysis

IP Addresses

sdtlearning.com points to a single IP number: 209.216.87.69.

Additional host names — wordbuffet.net, mail.thomblum.com, celine.com.br and two others — share IP numbers with sdtlearning.com.

Name Servers

Delegation for sdtlearning.com is to five name servers: dns1.webmasters.com, dns2.webmasters.com, dns3.webmasters.com and two others.

There is at least partial name server overlap between sdtlearning.com and other domains — janspillerastrology.com, ceravoloimages.com, apapas.org and two more among them.

These name servers regularly appear alongside dns4.webmasters.com, ns202.webmasters.com, ns205.webmasters.com and 7 other name servers in NS record sets.

Host names pointing to a single IP address:

dns1.webmasters.com has the IP address 51.81.90.59.

dns2.webmasters.com has the IP address 209.216.86.8.

dns3.webmasters.com has the IP address 209.216.88.8.

dns4.webmasters.com has the IP address 51.81.250.19.

ns205.webmasters.com has the IP address 209.216.87.69.

Mail Servers

sdtlearning.com has one mail server: sdtlearning-com.mail.protection.outlook.com.

sdtlearning-com.mail.protection.outlook.com points to 8 IP numbers: 52.101.10.18, 52.101.11.19, 52.101.41.58 and 5 other.