cursosa5.com - robtex.com

cursosa5.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2a6d🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:a1a2🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.42.109Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.161.162🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmary.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a86🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A2803:f800:50::6ca2:c086🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmary.ns.cloudflare.com
A2a06:98c1:50::ac40:2086🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmary.ns.cloudflare.com
A108.162.192.134🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A172.64.32.134🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A173.245.58.134🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
NSreese.ns.cloudflare.com
A2606:4700:58::a29f:2c75🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A2803:f800:50::6ca2:c375🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRreese.ns.cloudflare.com
A2a06:98c1:50::ac40:2375🇺🇸 Cloudflare2a06:98c1:50::/45
PTRreese.ns.cloudflare.com
A108.162.195.117🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A162.159.44.117Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A172.64.35.117🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTgoogle-site-verification=GnOtx2m_8VBJ60gR824ISrK1l2yMXUdBru8hkZQuCyM
TXTv=spf1 a mx include:_spf.elasticemail.com include:spf.messagingengine.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.42.109, 172.67.161.162
IPv6 hints2606:4700:3030::6815:2a6d, 2606:4700:3036::ac43:a1a2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOAmary.ns.cloudflare.comdns@cloudflare.com serial=2401983142

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777093761

Same first word

cursosa5.com

DNS History

8 records (8 active, 0 former)

NSmary.ns.cloudflare.comreese.ns.cloudflare.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comA104.21.42.109172.67.161.1622606:4700:3030::6815:2a6d2606:4700:3036::ac43:a1a2
●NSmary.ns.cloudflare.com2026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●NSreese.ns.cloudflare.com2026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●MXin1-smtp.messagingengine.com2026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●MXin2-smtp.messagingengine.com2026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●A104.21.42.1092026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●A172.67.161.1622026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●A2606:4700:3030::6815:2a6d2026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00
●A2606:4700:3036::ac43:a1a22026-03-24 → 2026-04-25 · 2 obs
● 2026-03-24 12:43:22
● 2026-04-25 05:34:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net...-
cursosa5.commary.ns.cloudflare.com, reese.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.134

NS records: mary.ns.cloudflare.com, reese.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 174ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.161.162, 104.21.42.109
AAAA22606:4700:3036::ac43:a1a2, 2606:4700:3030::6815:2a6d
NS2mary.ns.cloudflare.com, reese.ns.cloudflare.com
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT2google-site-verification=GnOtx2m_8VBJ60g, v=spf1 a mx include:_spf.elasticemail.co
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1mary.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cursosa5.com points to four IP numbers: 2606:4700:3030::6815:2a6d, 2606:4700:3036::ac43:a1a2, 104.21.42.109 and 172.67.161.162.

For instance, other host names marywet.net, kirkendalleffect.com, fanlipai.cn, kogeto.com and asmaciel.com share IP numbers with cursosa5.com.

Name Servers

cursosa5.com is delegated to two name servers: mary.ns.cloudflare.com and reese.ns.cloudflare.com.

cursosa5.com uses the same name server setup as other domains such as btdeti.com, credia.co.th, lesleylogan.co, sigthailand.com and lunr.app.

cursosa5.com shares name servers with other domains at least partially, for example bjamms.com, corporate-gifts-index.com, slotsvils.fr, (0x666170)i.eu and nsumsp.com.

These name servers are commonly used with violet.ns.cloudflare.com.

Host names with six IP numbers: host name mary.ns.cloudflare.com points to: 2606:4700:50::adf5:3a86, 2803:f800:50::6ca2:c086, 2a06:98c1:50::ac40:2086, 108.162.192.134, 172.64.32.134 and 173.245.58.134; host name reese.ns.cloudflare.com points to: 2606:4700:58::a29f:2c75, 2803:f800:50::6ca2:c375, 2a06:98c1:50::ac40:2375, 108.162.195.117, 162.159.44.117 and 172.64.35.117.

Mail Servers

Two mail servers in1-smtp.messagingengine.com and in2-smtp.messagingengine.com handle cursosa5.com.

cursosa5.com shares the same mail server setup as other domains, for instance pb-smtp21.pobox.com, goodlad.net, www.blockadetech.io, jerin.me and tahoebears.com.

cursosa5.com shares some mail servers with other domains, at least partially; examples include mathieu-leplatre.info, 2126pay.com and box.gregelenbaas.com.

Eight IP numbers for host name in1-smtp.messagingengine.com points to: 103.168.172.216, 103.168.172.217, 103.168.172.218, 103.168.172.219, 103.168.172.220, 103.168.172.221, 103.168.172.222 and 103.168.172.223.

Four IP numbers for host name in2-smtp.messagingengine.com points to: 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.