`congresoelearning.com.mx`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:52c0^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ce33^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.82.192^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.51^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arnold.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b45^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c145^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arnold.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2145^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arnold.ns.cloudflare.com`
		A	108.162.193.69^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	172.64.33.69^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	173.245.59.69^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
NS	`kia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kia.ns.cloudflare.com`
		A	108.162.192.179^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kia.ns.cloudflare.com`
		A	172.64.32.179^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kia.ns.cloudflare.com`
		A	173.245.58.179^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kia.ns.cloudflare.com`
MX	`mail.congresoelearning.com.mx` ⭐
		A	195.250.27.45^{🇬🇧 WHG-MEX195.250.27.0/24}
			PTR	`s3449.mex1.stableserver.net`
TXT	`google-site-verification=FhyWm3pk_hqj4H2bPoUGSKUUhbMulAmT6_GqWLUeU0k`
TXT	`v=spf1 +a +mx +ip4:65.99.225.73 include:relay.mailchannels.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.82.192, 172.67.206.51
		IPv6 hints	2606:4700:3037::6815:52c0, 2606:4700:3037::ac43:ce33
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=90, name=cloudflare-ech.com
SOA	`arnold.ns.cloudflare.com`dns@cloudflare.com serial=2408020792

`com.mx`

	DNSSEC	⚠️ Not signed
	NS	`m.mx-ns.mx` ⭐ ⚠️ Not in parent delegation
	NS	`c.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`e.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`i.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`o.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`x.mx-ns.mx` ⚠️ Not in parent delegation
	TXT	`v=spf1 -all`
	SOA	`m.mx-ns.mx`hostmaster@nic.mx serial=1784679516

WOT: NOT_SAFE (44/100)

Same first word

congresoelearning.com.mx

DNS History

8 records (7 active, 1 former)

●NSarnold.ns.cloudflare.com2026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

●NSkia.ns.cloudflare.com2026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

●MXmail.congresoelearning.com.mx2026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

●A104.21.82.1922026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

●A172.67.206.512026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

○A2606:4700:3036::ac43:ce332026-06-08 → 2026-06-08 · 3 obs

● 2026-06-08 08:19:14
○ 2026-07-10 08:51:32
○ 2026-07-22 00:46:08

●A2606:4700:3037::6815:52c02026-06-08 → 2026-07-22 · 2 obs

● 2026-06-08 08:19:14
● 2026-07-22 00:46:08

●A2606:4700:3037::ac43:ce332026-07-10 → 2026-07-22 · 3 obs

○ 2026-06-08 08:19:14
● 2026-07-10 08:51:32
● 2026-07-22 00:46:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
mx	c.mx-ns.mx, i.mx-ns.mx, o.mx-ns.mx, e.mx-ns.mx...	-
congresoelearning.com.mx	kia.ns.cloudflare.com, arnold.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.69

NS records: kia.ns.cloudflare.com, arnold.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for congresoelearning.com.mx (unsigned zone)

⏱️ Timing

Total: 494ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.206.51, 104.21.82.192`
AAAA	2	`2606:4700:3037::6815:52c0, 2606:4700:3037::ac43:ce33`
NS	2	`arnold.ns.cloudflare.com, kia.ns.cloudflare.com`
MX	1	`mail.congresoelearning.com.mx (pri: 0)`
TXT	2	`google-site-verification=FhyWm3pk_hqj4H2, v=spf1 +a +mx +ip4:65.99.225.73 include:`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arnold.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

congresoelearning.com.mx directs to four IP numbers, which are 104.21.82.192, 172.67.206.51, 2606:4700:3037::6815:52c0 and 2606:4700:3037::ac43:ce33.

Two other host names, along with www.cvshome.org, openai.1303383509.workers.dev and www.gkv-schildwolde.nl, also share IP numbers with congresoelearning.com.mx.

Name Servers

congresoelearning.com.mx is delegated to two name servers: arnold.ns.cloudflare.com and kia.ns.cloudflare.com.

congresoelearning.com.mx shares its NS records with other domains, for example cp4w.com, huellita.com.mx, elogic.com.mx and two others.

There is at least partial name server overlap between congresoelearning.com.mx and other domains — crowngreencasinos.net, barberbox.id, news-press24.com and two more among them.

The name servers tom.ns.cloudflare.com, darwin.ns.cloudflare.com and jamie.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

arnold.ns.cloudflare.com resolves to 108.162.193.69, 172.64.33.69, 173.245.59.69 and 3 other IP addresses.

kia.ns.cloudflare.com resolves to 108.162.192.179, 172.64.32.179, 173.245.58.179 and 3 other IP addresses.

Mail Servers

The sole mail server for congresoelearning.com.mx is mail.congresoelearning.com.mx.

mail.congresoelearning.com.mx resolves to a single IP number: 195.250.27.45.

congresoelearning.com.mx - robtex.com