🛡️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:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
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	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.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=1790710094

Same first word

programknowledge.com

Previous names

Next names

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
○ 2026-09-29 19:33:36

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

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-09-29 19:33:36

●NSns-cloud-e1.googledomains.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●NSns-cloud-e2.googledomains.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●NSns-cloud-e3.googledomains.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●NSns-cloud-e4.googledomains.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●MXalt1.aspmx.l.google.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●MXalt2.aspmx.l.google.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●MXalt3.aspmx.l.google.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●MXalt4.aspmx.l.google.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●MXaspmx.l.google.com2026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

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

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-09-29 19:33:36

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

● 2017-05-12 01:09:56
○ 2026-09-12 23:32:14
○ 2026-09-29 19:33:36

●A198.185.159.1442026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●A198.185.159.1452026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●A198.49.23.1442026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

●A198.49.23.1452026-09-12 → 2026-09-29 · 3 obs

○ 2017-05-12 01:09:56
● 2026-09-12 23:32:14
● 2026-09-29 19:33:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, k.gtld-servers.net, j.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:216.239.34.110

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: 798ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.49.23.144, 198.185.159.145...`
NS	4	`ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com...`
MX	5	`alt1.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=pceesHoEqqdNuG8`
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 directs to four IP numbers, which are 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

annadaedalus.com, theabakerdesigns.com, bebetterthanpar.com plus two other host names have IP numbers in common with programknowledge.com.

Name Servers

Four name servers handle the delegation for programknowledge.com: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com.

The name servers of programknowledge.com overlap at least partially with those of other domains — among them carollukpottery.com, lumarelief.co, lalunapienacurvy.com and two more.

Each of the four hosts ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com has two IP addresses. 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

Five mail servers handle programknowledge.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by programknowledge.com are shared with other domains: bodyeqcville.com, beotravel.com, groudan.net and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com points to 142.251.111.26 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com points to 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1b.