`vivocourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:392d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:bd22^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.45^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.189.34^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`monika.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2638^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monika.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c238^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`monika.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2238^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`monika.ns.cloudflare.com`
		A	108.162.194.56^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monika.ns.cloudflare.com`
		A	162.159.38.56^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monika.ns.cloudflare.com`
		A	172.64.34.56^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monika.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	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.57.45, 172.67.189.34
		IPv6	2606:4700:3034::6815:392d, 2606:4700:3035::ac43:bd22
SOA	`monika.ns.cloudflare.com`dns@cloudflare.com serial=2399249969

`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=1774489587

Same first word

vivocourse.com

DNS History

11 records (11 active, 0 former)

●NSmonika.ns.cloudflare.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●NStroy.ns.cloudflare.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●MXeforward1.registrar-servers.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●MXeforward2.registrar-servers.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●MXeforward3.registrar-servers.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●MXeforward4.registrar-servers.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●MXeforward5.registrar-servers.com2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●A104.21.57.452026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●A172.67.189.342026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●A2606:4700:3034::6815:392d2026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

●A2606:4700:3035::ac43:bd222026-03-16 → 2026-03-26 · 2 obs

● 2026-03-16 21:56:08
● 2026-03-26 02:01:42

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:108.162.194.56

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vivocourse.com (unsigned zone)

⏱️ Timing

Total: 197ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.57.45, 172.67.189.34`
AAAA	2	`2606:4700:3034::6815:392d, 2606:4700:3035::ac43:bd22`
NS	2	`monika.ns.cloudflare.com, troy.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`monika.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

vivocourse.com resolves to four IPs: 2606:4700:3034::6815:392d, 2606:4700:3035::ac43:bd22, 104.21.57.45 and 172.67.189.34.

Other host names, for instance principalprinciples.net, shorten.maglead.ru, aksharbuildcon.com, glomar.com and www.analoglove.net share IP numbers with vivocourse.com.

Name Servers

vivocourse.com has two name servers: monika.ns.cloudflare.com and troy.ns.cloudflare.com.

vivocourse.com shares the same name server setup as other domains, for example wellstattherapeutics.com, methylgene.com, towerfront.com, hhkungfu.click and benjaminstrahs.com.

vivocourse.com shares some name servers with other domains, for example x55.bet, 234n.com, rapidprofitpackage.com, nationaldepo.net and txt520.com.

These name servers are often used together with hasslo.ns.cloudflare.com, davina.ns.cloudflare.com and ali.ns.cloudflare.com.

Host names with six IP numbers: monika.ns.cloudflare.com points to: 2606:4700:50::a29f:2638, 2803:f800:50::6ca2:c238, 2a06:98c1:50::ac40:2238, 108.162.194.56, 162.159.38.56 and 172.64.34.56; troy.ns.cloudflare.com points to: 2606:4700:58::a29f:2cda, 2803:f800:50::6ca2:c3da, 2a06:98c1:50::ac40:23da, 108.162.195.218, 162.159.44.218 and 172.64.35.218.

Mail Servers

vivocourse.com is handled by five mail servers: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com and eforward5.registrar-servers.com.

vivocourse.com shares some mail servers with other domains, at least partially; for instance rsdowncloudotp.com, yukmainlottery.com, idoctum.net, oddsaffiliate.com and dearconservative.com.

these mail servers are commonly used alongside eforward6.registrar-servers.com and eforward7.registrar-servers.com.

Host names with a single IP:

Host eforward1.registrar-servers.com points to 162.255.118.51.

Host eforward2.registrar-servers.com points to 162.255.118.52.

Host eforward3.registrar-servers.com points to 162.255.118.51.

Host eforward4.registrar-servers.com points to 162.255.118.52.

Host eforward5.registrar-servers.com points to 162.255.118.51.

Host names pointing to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.

Host names pointing to 162.255.118.52: eforward2.registrar-servers.com and eforward4.registrar-servers.com.

vivocourse.com - robtex.com

vivocourse.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`vivocourse.com`

`com`