programknowledge.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`programknowledge.com`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US} ✓ In HTTPS hints
NS	`ns-cloud-e1.googledomains.com` ⭐
		A	2001:4860:4802:32::6e^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-e1.googledomains.com`
		A	216.239.32.110^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-e1.googledomains.com`
NS	`ns-cloud-e2.googledomains.com`
		A	2001:4860:4802:34::6e^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-e2.googledomains.com`
		A	216.239.34.110^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-e2.googledomains.com`
NS	`ns-cloud-e3.googledomains.com`
		A	2001:4860:4802:36::6e^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-e3.googledomains.com`
		A	216.239.36.110^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-e3.googledomains.com`
NS	`ns-cloud-e4.googledomains.com`
		A	2001:4860:4802:38::6e^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-e4.googledomains.com`
		A	216.239.38.110^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-e4.googledomains.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:1000::1a
		A	172.253.156.26^{Google172.253.0.0/16}
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:3801::1b
		A	142.250.100.27
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
TXT	`google-site-verification=pceesHoEqqdNuG8XyNCMoSWDjfrkdv41mfAbgQJ1ftk`
HTTPS	HTTP/2, HTTP/1.1 ✓ hints match
		IPv4 hints	198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
SOA	`ns-cloud-e1.googledomains.com`cloud-dns-hostmaster@google.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=1792259989

Same first word

programknowledge.com

DNS History

17 records (13 active, 4 former)

○NSdns1.freehostia.com2017-05-12 → 2017-05-12 · 3 obs

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-10-17 18:01:26

○NSdns2.freehostia.com2017-05-12 → 2017-05-12 · 3 obs

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-10-17 18:01:26

●NSns-cloud-e1.googledomains.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●NSns-cloud-e2.googledomains.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●NSns-cloud-e3.googledomains.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●NSns-cloud-e4.googledomains.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●MXalt1.aspmx.l.google.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●MXalt2.aspmx.l.google.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●MXalt3.aspmx.l.google.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●MXalt4.aspmx.l.google.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●MXaspmx.l.google.com2026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

○MXmbox.freehostia.com2017-05-12 → 2017-05-12 · 3 obs

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-10-17 18:01:26

○A162.210.102.2322017-05-12 → 2017-05-12 · 3 obs

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-10-17 18:01:26

●A198.185.159.1442026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●A198.185.159.1452026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●A198.49.23.1442026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

●A198.49.23.1452026-09-12 → 2026-10-17 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-10-17 18:01:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...	-
programknowledge.com	ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.32.110

NS records: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programknowledge.com (unsigned zone)

⏱️ Timing

Total: 2588ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.185.159.145, 198.49.23.145...`
NS	4	`ns-cloud-e2.googledomains.com, ns-cloud-e4.googledomains.com...`
MX	5	`alt4.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)...`
TXT	2	`google-site-verification=pceesHoEqqdNuG8, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2",`
SOA	1	`ns-cloud-e1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-e1.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com...)

Analysis

IP Addresses

programknowledge.com resolves to four IP addresses: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

Name Servers

The NS records for programknowledge.com point to four name servers: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com.

The host names ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com each point to two IP numbers: ns-cloud-e1.googledomains.com points to 216.239.32.110 and 2001:4860:4802:32::6e. ns-cloud-e2.googledomains.com points to 216.239.34.110 and 2001:4860:4802:34::6e. ns-cloud-e3.googledomains.com points to 216.239.36.110 and 2001:4860:4802:36::6e. ns-cloud-e4.googledomains.com points to 216.239.38.110 and 2001:4860:4802:38::6e.

Mail Servers

programknowledge.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

The host names aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com each point to two IP numbers: aspmx.l.google.com points to 172.253.156.26 and 2607:f8b0:4023:1000::1a. alt2.aspmx.l.google.com points to 142.250.100.27 and 2607:f8b0:4023:3801::1b. alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1a. alt4.aspmx.l.google.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.