udcourse.com - dns.ninja

`udcourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:286^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:386^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4b57^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.2.134^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.3.134^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.75.87^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`davina.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2628^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`davina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c228^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`davina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2228^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`davina.ns.cloudflare.com`
		A	108.162.194.40^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`davina.ns.cloudflare.com`
		A	162.159.38.40^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`davina.ns.cloudflare.com`
		A	172.64.34.40^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`davina.ns.cloudflare.com`
NS	`troy.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cda^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`troy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`troy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`troy.ns.cloudflare.com`
		A	108.162.195.218^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`troy.ns.cloudflare.com`
		A	162.159.44.218^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`troy.ns.cloudflare.com`
		A	172.64.35.218^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`troy.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.2.134, 104.26.3.134, 172.67.75.87
		IPv6 hints	2606:4700:20::681a:286, 2606:4700:20::681a:386, 2606:4700:20::ac43:4b57
SOA	`davina.ns.cloudflare.com`dns@cloudflare.com serial=2408096454

`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=1782656235

rank #726811 globally
rank #318199 in the tld

Same first word

udcourse.com

Similar names

coursedu.blogspot.com

coursedu.net

educurso.com

douceurs.ca

decosuru.com

DNS History

9 records (9 active, 0 former)

●NSdavina.ns.cloudflare.com2026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●NStroy.ns.cloudflare.com2026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●MXsmtp.google.com2026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A104.26.2.1342026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A104.26.3.1342026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A172.67.75.872026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A2606:4700:20::681a:2862026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A2606:4700:20::681a:3862026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

●A2606:4700:20::ac43:4b572026-02-15 → 2026-06-28 · 2 obs

● 2026-02-15 12:06:12
● 2026-06-28 14:34:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
udcourse.com	davina.ns.cloudflare.com, troy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.218

NS records: davina.ns.cloudflare.com, troy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for udcourse.com (unsigned zone)

⏱️ Timing

Total: 227ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.2.134, 172.67.75.87...`
AAAA	3	`2606:4700:20::681a:386, 2606:4700:20::681a:286...`
NS	2	`davina.ns.cloudflare.com, troy.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`davina.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

With 6 IP addresses in total, udcourse.com resolves to 104.26.2.134, 104.26.3.134, 172.67.75.87 and 3 other.

Among the host names that share IP numbers with udcourse.com are golftroop.com, eateasy.ae, epictv.com and two others.

Name Servers

udcourse.com is delegated to two name servers: davina.ns.cloudflare.com and troy.ns.cloudflare.com.

udcourse.com has the same name server delegation as a number of other domains, such as jkbpp.com, bdbmetal.com.tr, sh-dongang.com and two more.

udcourse.com partially shares its NS delegation with several other domains, including systemintegration.be, bevinsmotors.com, re-yo.com and two others.

These name servers are regularly seen alongside logan.ns.cloudflare.com and rachel.ns.cloudflare.com as name servers.

Host names resolving to 6 IP numbers:

davina.ns.cloudflare.com resolves to 108.162.194.40, 162.159.38.40, 172.64.34.40 and 3 other IP addresses.

troy.ns.cloudflare.com resolves to 108.162.195.218, 162.159.44.218, 172.64.35.218 and 3 other IP addresses.

Mail Servers

udcourse.com routes its mail through a single mail server, smtp.google.com.

udcourse.com has the same mail server arrangement as a number of other domains, for example drpaiu.edu.in, dealday.io, iecsemanipal.com and two more.

udcourse.com shares at least some of its mail servers with other domains — for example guhsaa.org, lvbpower.com, norsfell.com and two more.

These mail servers tend to be used in conjunction with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two additional mail servers.

smtp.google.com directs to 9 IP numbers, including 142.250.31.27, 142.251.16.26 and 142.251.16.27, along with 6 other.