curriculumengine.com - dns.ninja

`curriculumengine.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b34d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:3b92^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.59.146^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.179.77^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kurt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bc1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kurt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kurt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kurt.ns.cloudflare.com`
		A	108.162.193.193^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kurt.ns.cloudflare.com`
		A	172.64.33.193^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kurt.ns.cloudflare.com`
		A	173.245.59.193^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kurt.ns.cloudflare.com`
NS	`lucy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lucy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c085^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lucy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2085^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lucy.ns.cloudflare.com`
		A	108.162.192.133^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lucy.ns.cloudflare.com`
		A	172.64.32.133^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lucy.ns.cloudflare.com`
		A	173.245.58.133^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lucy.ns.cloudflare.com`
TXT	`_globalsign-domain-verification=q7tkwjNi0jeIpeYRplKCW841TYY0i9iOUTZR-S8BnR`
TXT	`_globalsign-domain-verification=wyCDZ1hJE-UsjrehfAW1YJ6Baoqtb0Dm-YZfrNAouN`
TXT	`google-site-verification=nsN81rFjvnS2mz4-OljpPltWCHDQhJOxqhkWa2rVUVU`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.59.146, 172.67.179.77
		IPv6 hints	2606:4700:3031::ac43:b34d, 2606:4700:3032::6815:3b92
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=110, name=cloudflare-ech.com
SOA	`kurt.ns.cloudflare.com`dns@cloudflare.com serial=2411582381

`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=1786340274

Same first word

curriculumengine.com

DNS History

17 records (6 active, 11 former)

●NSkurt.ns.cloudflare.com2026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

●NSlucy.ns.cloudflare.com2026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

○NSns1.nexcess.net2026-03-20 → 2026-03-20 · 4 obs

○ 2018-07-16 01:42:02
● 2026-03-20 18:44:06
○ 2026-08-03 18:42:40
○ 2026-08-10 05:55:32

○NSns1.tierra.net2015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

○NSns2.nexcess.net2026-03-20 → 2026-03-20 · 4 obs

○ 2018-07-16 01:42:02
● 2026-03-20 18:44:06
○ 2026-08-03 18:42:40
○ 2026-08-10 05:55:32

○NSns2.tierra.net2015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

○NSns3.nexcess.net2026-03-20 → 2026-03-20 · 4 obs

○ 2018-07-16 01:42:02
● 2026-03-20 18:44:06
○ 2026-08-03 18:42:40
○ 2026-08-10 05:55:32

○NSns4.nexcess.net2026-03-20 → 2026-03-20 · 4 obs

○ 2018-07-16 01:42:02
● 2026-03-20 18:44:06
○ 2026-08-03 18:42:40
○ 2026-08-10 05:55:32

○MXmx1.daemonmail.net2015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

○MXmx2.daemonmail.net2015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

●A104.21.59.1462026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

●A172.67.179.772026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

○A209.126.25.492026-03-20 → 2026-03-20 · 4 obs

○ 2018-07-16 01:42:02
● 2026-03-20 18:44:06
○ 2026-08-03 18:42:40
○ 2026-08-10 05:55:32

○A216.104.165.142015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

○A216.104.165.742015-07-02 → 2018-07-16 · 4 obs

● 2015-07-02 11:08:06
● 2018-07-16 01:42:02
○ 2026-03-20 18:44:06
○ 2026-08-10 05:55:32

●A2606:4700:3031::ac43:b34d2026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

●A2606:4700:3032::6815:3b922026-08-03 → 2026-08-10 · 3 obs

○ 2026-03-20 18:44:06
● 2026-08-03 18:42:40
● 2026-08-10 05:55:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, j.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net...	-
curriculumengine.com	lucy.ns.cloudflare.com, kurt.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.193

NS records: lucy.ns.cloudflare.com, kurt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for curriculumengine.com (unsigned zone)

⏱️ Timing

Total: 193ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.179.77, 104.21.59.146`
AAAA	2	`2606:4700:3031::ac43:b34d, 2606:4700:3032::6815:3b92`
NS	2	`kurt.ns.cloudflare.com, lucy.ns.cloudflare.com`
TXT	3	`_globalsign-domain-verification=q7tkwjNi, _globalsign-domain-verification=wyCDZ1hJ...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kurt.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

curriculumengine.com points to the four IP addresses 104.21.59.146, 172.67.179.77, 2606:4700:3031::ac43:b34d and 2606:4700:3032::6815:3b92.

sportsvisionnews.com, mraus.com, idikotamobagukab.org and two other host names share IP numbers with curriculumengine.com.

Name Servers

Two name servers handle the delegation for curriculumengine.com: kurt.ns.cloudflare.com and lucy.ns.cloudflare.com.

curriculumengine.com uses the same name servers as several other domains — among them flexipayment.in, irkocc.ru, xn----7sbbajrsb9agfg1aplt.xn--p1ai and two more.

There is at least partial name server overlap between curriculumengine.com and other domains — eastkorr.net, escortistanbul.info, (0x696e63657374)oreal.com and two more among them.

The name servers apollo.ns.cloudflare.com, damian.ns.cloudflare.com and miki.ns.cloudflare.com are often found in combination with these name servers.

Hostnames that resolve to 6 IP addresses:

kurt.ns.cloudflare.com resolves to 108.162.193.193, 172.64.33.193 and 173.245.59.193 among others, with 3 other IP addresses in total.

lucy.ns.cloudflare.com resolves to 108.162.192.133, 172.64.32.133 and 173.245.58.133 among others, with 3 other IP addresses in total.