hourofscience.com - dns.ninja

`hourofscience.com`

DNSSEC	⚠️ Not signed
A	141.133.175.65^{🇺🇸 BENTLE-10141.133.0.0/16}
NS	`cheryl.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a53^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c053^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cheryl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2053^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cheryl.ns.cloudflare.com`
		A	108.162.192.83^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	172.64.32.83^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	173.245.58.83^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
NS	`harley.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c380^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2380^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harley.ns.cloudflare.com`
		A	108.162.195.128^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	162.159.44.128^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	172.64.35.128^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
MX	`mail.hourofscience.com` ⭐
		A	141.133.175.65^{🇺🇸 BENTLE-10141.133.0.0/16}
TXT	`v=spf1 ip4:141.133.175.65 -all`
SOA	`cheryl.ns.cloudflare.com`dns@cloudflare.com serial=2409017617

`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=1785448412

⚠️ On DNS blocklist: pro, pro.plus, ultimate

Subdomains

www.hourofscience.com

mail.hourofscience.com

Same first word

hourofscience.com

DNS History

9 records (4 active, 5 former)

●NScheryl.ns.cloudflare.com2026-07-09 → 2026-07-30 · 3 obs

○ 2017-05-08 08:37:34
● 2026-07-09 04:10:46
● 2026-07-30 22:16:00

●NSharley.ns.cloudflare.com2026-07-09 → 2026-07-30 · 3 obs

○ 2017-05-08 08:37:34
● 2026-07-09 04:10:46
● 2026-07-30 22:16:00

○NSns05.domaincontrol.com2017-05-08 → 2017-05-08 · 3 obs

● 2017-05-08 08:37:34
○ 2026-07-09 04:10:46
○ 2026-07-30 22:16:00

○NSns06.domaincontrol.com2017-05-08 → 2017-05-08 · 3 obs

● 2017-05-08 08:37:34
○ 2026-07-09 04:10:46
○ 2026-07-30 22:16:00

●MXmail.hourofscience.com2026-07-09 → 2026-07-30 · 3 obs

○ 2017-05-08 08:37:34
● 2026-07-09 04:10:46
● 2026-07-30 22:16:00

○MXmailstore1.secureserver.net2017-05-08 → 2017-05-08 · 3 obs

● 2017-05-08 08:37:34
○ 2026-07-09 04:10:46
○ 2026-07-30 22:16:00

○MXsmtp.secureserver.net2017-05-08 → 2017-05-08 · 3 obs

● 2017-05-08 08:37:34
○ 2026-07-09 04:10:46
○ 2026-07-30 22:16:00

●A141.133.175.652026-07-09 → 2026-07-30 · 3 obs

○ 2017-05-08 08:37:34
● 2026-07-09 04:10:46
● 2026-07-30 22:16:00

○A50.63.202.412017-05-08 → 2017-05-08 · 3 obs

● 2017-05-08 08:37:34
○ 2026-07-09 04:10:46
○ 2026-07-30 22:16:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
hourofscience.com	cheryl.ns.cloudflare.com, harley.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.128

NS records: cheryl.ns.cloudflare.com, harley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hourofscience.com (unsigned zone)

⏱️ Timing

Total: 187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`141.133.175.65`
NS	2	`cheryl.ns.cloudflare.com, harley.ns.cloudflare.com`
MX	1	`mail.hourofscience.com (pri: 10)`
TXT	1	`v=spf1 ip4:141.133.175.65 -all`
SOA	1	`cheryl.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com...)

Analysis

Hierarchy

www.hourofscience.com and mail.hourofscience.com each fall under hourofscience.com as their parent domain.

IP Addresses

hourofscience.com resolves to just one IP address, 141.133.175.65.

mail.hourofscience.com, for instance, is one of the other host names sharing IP numbers with hourofscience.com.

Name Servers

hourofscience.com uses two name servers for its delegation: cheryl.ns.cloudflare.com and harley.ns.cloudflare.com.

hourofscience.com shares its NS records with other domains, for example webcar54.ru, erspan.com, viet-hoa.com and two others.

hourofscience.com partially shares its NS delegation with several other domains, including situs-mahadewi77.pages.dev, nordjet.com, haakili.com.au and two others.

The name servers logan.ns.cloudflare.com, mitch.ns.cloudflare.com, melody.ns.cloudflare.com and nicole.ns.cloudflare.com are often found in use alongside these name servers.

DNS names with 6 IP addresses:

Hostname cheryl.ns.cloudflare.com directs to 108.162.192.83, 172.64.32.83 and 173.245.58.83 along with 3 other IP addresses.

Hostname harley.ns.cloudflare.com directs to 108.162.195.128, 162.159.44.128 and 172.64.35.128 along with 3 other IP addresses.

Mail Servers

The sole mail server for hourofscience.com is mail.hourofscience.com.

mail.hourofscience.com directs to just one IP number, 141.133.175.65.