programmingmastery.com - dns.ninja

`programmingmastery.com`

DNSSEC	⚠️ Not signed
A	2607:f1c0:1000:1028:6df8:82a7:e78d:3015^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`perfora.net`
A	216.250.121.80^{🇺🇸 IONOS-AS216.250.112.0/20 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
NS	`ns1017.ui-dns.de` ⭐
		A	2607:f1c0:fe:53:185:132:32:17^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1017.ui-dns.de`
		A	185.132.32.17^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1017.ui-dns.de`
NS	`ns1048.ui-dns.com`
		A	2607:f1c0:fe:53:185:132:34:48^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1048.ui-dns.com`
		A	185.132.34.48^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1048.ui-dns.com`
NS	`ns1071.ui-dns.biz`
		A	2607:f1c0:fe:53:185:132:33:71^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1071.ui-dns.biz`
		A	185.132.33.71^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1071.ui-dns.biz`
NS	`ns1101.ui-dns.org`
		A	2607:f1c0:fe:53:185:132:35:101^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1101.ui-dns.org`
		A	185.132.35.101^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1101.ui-dns.org`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
SOA	`ns1017.ui-dns.de`hostmaster@1und1.com 2017-06-01 #20

`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=1785508652

Same first word

programmingmastery.net

programmingmastery.com

DNS History

24 records (7 active, 17 former)

○NScarter.ns.cloudflare.com2017-01-24 → 2019-03-22 · 5 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

●NSns1017.ui-dns.de2026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

●NSns1048.ui-dns.com2026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

●NSns1071.ui-dns.biz2026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

●NSns1101.ui-dns.org2026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

○NSns57.1and1.com2015-07-11 → 2016-05-07 · 4 obs

● 2015-07-11 17:35:48
● 2016-05-07 11:00:48
○ 2017-01-24 22:10:58
○ 2026-07-31 14:49:14

○NSns58.1and1.com2015-07-11 → 2016-05-07 · 4 obs

● 2015-07-11 17:35:48
● 2016-05-07 11:00:48
○ 2017-01-24 22:10:58
○ 2026-07-31 14:49:14

○NSzoe.ns.cloudflare.com2017-01-24 → 2019-03-22 · 5 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○MXalt1.aspmx.l.google.com2015-07-11 → 2019-03-22 · 4 obs

● 2015-07-11 17:35:48
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○MXalt2.aspmx.l.google.com2015-07-11 → 2019-03-22 · 4 obs

● 2015-07-11 17:35:48
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○MXaspmx.l.google.com2015-07-11 → 2019-03-22 · 4 obs

● 2015-07-11 17:35:48
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○MXaspmx2.googlemail.com2015-07-11 → 2019-03-22 · 4 obs

● 2015-07-11 17:35:48
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

●MXsmtp.google.com2026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

○A104.24.106.1462017-01-24 → 2019-03-22 · 5 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○A104.24.107.1462017-01-24 → 2019-03-22 · 5 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

●A216.250.121.802026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

○A2400:cb00:2048:1::6818:6a922017-01-24 → 2017-01-24 · 4 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
○ 2019-03-22 15:05:00
○ 2026-07-31 14:49:14

○A2400:cb00:2048:1::6818:6b922017-01-24 → 2017-01-24 · 4 obs

○ 2016-05-07 11:00:48
● 2017-01-24 22:10:58
○ 2019-03-22 15:05:00
○ 2026-07-31 14:49:14

○A2606:4700:30::6818:6a922019-03-22 → 2019-03-22 · 4 obs

○ 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

○A2606:4700:30::6818:6b922019-03-22 → 2019-03-22 · 4 obs

○ 2017-01-24 22:10:58
● 2019-03-22 15:05:00
○ 2026-03-21 20:45:06
○ 2026-07-31 14:49:14

●A2607:f1c0:1000:1028:6df8:82a7:e78d:30152026-03-21 → 2026-07-31 · 3 obs

○ 2019-03-22 15:05:00
● 2026-03-21 20:45:06
● 2026-07-31 14:49:14

○A2607:f1c0:1000:66:a0b:1121:1a22:98012016-02-05 → 2016-05-07 · 5 obs

○ 2015-11-11 00:16:40
● 2016-02-05 19:20:14
● 2016-05-07 11:00:48
○ 2017-01-24 22:10:58
○ 2026-07-31 14:49:14

○A74.208.193.1432015-07-11 → 2015-11-11 · 4 obs

● 2015-07-11 17:35:48
● 2015-11-11 00:16:40
○ 2016-02-05 19:20:14
○ 2026-07-31 14:49:14

○A74.208.29.702016-02-05 → 2016-05-07 · 5 obs

○ 2015-11-11 00:16:40
● 2016-02-05 19:20:14
● 2016-05-07 11:00:48
○ 2017-01-24 22:10:58
○ 2026-07-31 14:49:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
programmingmastery.com	ns1017.ui-dns.de, ns1071.ui-dns.biz, ns1101.ui-dns.org, ns1048.ui-dns.com	2 records

✅ Authoritative Response

Server:185.132.35.101

NS records: ns1017.ui-dns.de, ns1071.ui-dns.biz, ns1101.ui-dns.org, ns1048.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programmingmastery.com (unsigned zone)

⏱️ Timing

Total: 552ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.250.121.80`
AAAA	1	`2607:f1c0:1000:1028:6df8:82a7:e78d:3015`
NS	4	`ns1048.ui-dns.com, ns1017.ui-dns.de...`
MX	1	`smtp.google.com (pri: 1)`
SOA	1	`ns1017.ui-dns.de hostmaster.1und1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1048.ui-dns.com, ns1048.ui-dns.com)

Analysis

IP Addresses

programmingmastery.com directs to two IP numbers, 216.250.121.80 and 2607:f1c0:1000:1028:6df8:82a7:e78d:3015

b2bpa.com, speclaser.com, gitplanner.com plus two other host names have IP numbers in common with programmingmastery.com.

Name Servers

Four name servers handle the delegation for programmingmastery.com: ns1071.ui-dns.biz, ns1048.ui-dns.com, ns1017.ui-dns.de and ns1101.ui-dns.org.

programmingmastery.com shares at least some of its name servers with other domains, including orrwrecker.com, willam.net, brumm.biz and two others.

These name servers are frequently seen alongside ns1071.ui-dns.com, ns1071.ui-dns.de, ns1071.ui-dns.org and 7 other name servers.

The host names ns1071.ui-dns.biz, ns1048.ui-dns.com, ns1017.ui-dns.de and ns1101.ui-dns.org each resolve to two IP addresses: ns1071.ui-dns.biz resolves to 185.132.33.71 and 2607:f1c0:fe:53:185:132:33:71; ns1048.ui-dns.com resolves to 185.132.34.48 and 2607:f1c0:fe:53:185:132:34:48; ns1017.ui-dns.de resolves to 185.132.32.17 and 2607:f1c0:fe:53:185:132:32:17; ns1101.ui-dns.org resolves to 185.132.35.101 and 2607:f1c0:fe:53:185:132:35:101.

Mail Servers

programmingmastery.com uses one mail server — smtp.google.com.

The mail server setup of programmingmastery.com matches that of other domains such as stratozone.com, kestasmak.com, hexaclicks.net and two others.

At least some of the mail servers used by programmingmastery.com are shared with other domains: antroposofischarts.com, diu.edu.kh, mylivcase.com and two others among them.

These mail servers often appear in conjunction with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com.

smtp.google.com has 9 IP addresses: 142.251.163.26, 142.251.163.27, 142.251.167.27 plus 6 more.