cursoflex.com - dns.ninja

`cursoflex.com`

DNSSEC	⚠️ Not signed
A	2804:10:8002::210:29^{🇧🇷 IPV6-INTERNET2804:10:8000::/34 IPv6 Internet Ltda Any Notification about AS28299 security please e-mail to: ABUSE@hospedagem.net}
A	191.6.210.29^{🇧🇷 Locaweb191.6.210.0/24 IPV6 Internet Ltda}
NS	`izabella.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:262e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c22e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`izabella.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:222e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`izabella.ns.cloudflare.com`
		A	108.162.194.46^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	162.159.38.46^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	172.64.34.46^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
NS	`john.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`john.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`john.ns.cloudflare.com`
		A	108.162.193.185^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	172.64.33.185^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	173.245.59.185^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
MX	`mx-vip-01.uni5.net` ⭐
		A	2804:10:8028::220:38^{🇧🇷 IPV6-INTERNET2804:10:8000::/34 IPv6 Internet Ltda Any Notification about AS28299 security please e-mail to: ABUSE@hospedagem.net}
		A	191.6.220.38^{🇧🇷 IPV6-INTERNET191.6.220.0/23 IPv6 Internet Ltda Any Notification about AS28299 security please e-mail to: ABUSE@hospedagem.net}
			PTR	`mx-vip-01-farm28.uni5.net`
MX	`mx-vip-02.uni5.net` ⭐
		A	2804:10:8028::220:39^{🇧🇷 IPV6-INTERNET2804:10:8000::/34 IPv6 Internet Ltda Any Notification about AS28299 security please e-mail to: ABUSE@hospedagem.net}
		A	191.6.220.39^{🇧🇷 IPV6-INTERNET191.6.220.0/23 IPv6 Internet Ltda Any Notification about AS28299 security please e-mail to: ABUSE@hospedagem.net}
			PTR	`mx-vip-02-farm28.uni5.net`
TXT	`v=spf1 include:mxsspf.sendpulse.com +a +mx ~all`
SOA	`izabella.ns.cloudflare.com`dns@cloudflare.com serial=2411115973

`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=1786677024

WOT: SAFE (61/100)

Subdomains

mail.cursoflex.com

Same first word

cursoflex.com

Similar names

surcoflex.com

flxsource.org

DNS History

10 records (6 active, 4 former)

●NSizabella.ns.cloudflare.com2026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

●NSjohn.ns.cloudflare.com2026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

○NSns1.onalia.com2008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 11:41:18
○ 2015-10-25 23:35:08
○ 2026-08-14 03:23:36

○NSns2.onalia.com2008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 11:41:18
○ 2015-10-25 23:35:08
○ 2026-08-14 03:23:36

○MXmail.cursoflex.com2008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 11:41:18
○ 2015-10-25 23:35:08
○ 2026-08-14 03:23:36

●MXmx-vip-01.uni5.net2026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

●MXmx-vip-02.uni5.net2026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

●A191.6.210.292026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

●A2804:10:8002::210:292026-04-13 → 2026-08-14 · 3 obs

○ 2015-10-25 23:35:08
● 2026-04-13 11:25:12
● 2026-08-14 03:23:36

○A82.194.82.362008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 11:41:18
○ 2015-10-25 23:35:08
○ 2026-08-14 03:23:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
cursoflex.com	john.ns.cloudflare.com, izabella.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.185

NS records: john.ns.cloudflare.com, izabella.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cursoflex.com (unsigned zone)

⏱️ Timing

Total: 198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`191.6.210.29`
AAAA	1	`2804:10:8002::210:29`
NS	2	`izabella.ns.cloudflare.com, john.ns.cloudflare.com`
MX	2	`mx-vip-01.uni5.net (pri: 5), mx-vip-02.uni5.net (pri: 5)`
TXT	1	`v=spf1 include:mxsspf.sendpulse.com +a +`
SOA	1	`izabella.ns.cloudflare.com dns.cloudflar`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

mail.cursoflex.com is a subdomain of cursoflex.com.

IP Addresses

cursoflex.com has two IP addresses: 191.6.210.29 and 2804:10:8002::210:29

Among the host names that share IP numbers with cursoflex.com are brasilnet.com.br, pupetz.com.br, pontodevista.jor.br and two others.

Name Servers

DNS delegation for cursoflex.com points to two name servers: izabella.ns.cloudflare.com and john.ns.cloudflare.com.

cursoflex.com has the same name server delegation as a number of other domains, such as sultanbeylidh.gov.tr, bettnet.com, visiongate.de and two more.

The name servers of cursoflex.com overlap at least partially with those of other domains — among them rtbtr.com, cloudearth.com, ztorage.se and two more.

These name servers commonly appear alongside the name servers princess.ns.cloudflare.com and paul.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

izabella.ns.cloudflare.com has IP addresses 108.162.194.46, 162.159.38.46 and 172.64.34.46, plus 3 other.

john.ns.cloudflare.com has IP addresses 108.162.193.185, 172.64.33.185 and 173.245.59.185, plus 3 other.

Mail Servers

The MX records for cursoflex.com point to two mail servers: mx-vip-01.uni5.net and mx-vip-02.uni5.net.

cursoflex.com has the same mail server arrangement as a number of other domains, for example genmedicina.com.br, imoteccorretora.com.br, futebolbarretos.com.br and two more.

cursoflex.com has mail servers in common with other domains — royalmarine.com.br being one example.

mx-vip-01.uni5.net directs to 191.6.220.38 and 2804:10:8028::220:38. mx-vip-02.uni5.net directs to 191.6.220.39 and 2804:10:8028::220:39. Each host name carries two IP addresses.