`guiadosconcursos.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:5b21^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a55f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.91.33^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.165.95^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`khalid.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c35^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`khalid.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c335^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`khalid.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2335^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`khalid.ns.cloudflare.com`
		A	108.162.195.53^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`khalid.ns.cloudflare.com`
		A	162.159.44.53^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`khalid.ns.cloudflare.com`
		A	172.64.35.53^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`khalid.ns.cloudflare.com`
NS	`meiling.ns.cloudflare.com`
		A	2606:4700:50::a29f:26fe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2fe^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`meiling.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22fe^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`meiling.ns.cloudflare.com`
		A	108.162.194.254^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	162.159.38.254^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	172.64.34.254^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
TXT	`google-site-verification=_0P-bxbLdPtFV4r0IYDO01CRU8KmDmHsQtYi0YA8CWI`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.91.33, 172.67.165.95
		IPv6 hints	2606:4700:3030::6815:5b21, 2606:4700:3033::ac43:a55f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com
SOA	`khalid.ns.cloudflare.com`dns@cloudflare.com serial=2400328877

`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=1776106422

Same first word

guiadosconcursos.com

DNS History

22 records (6 active, 16 former)

●NSkhalid.ns.cloudflare.com2026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

●NSmeiling.ns.cloudflare.com2026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

○NSns1.fastpark.net2015-05-15 → 2016-03-22 · 4 obs

● 2015-05-15 23:42:04
● 2016-03-22 14:39:24
○ 2016-09-24 12:33:12
○ 2026-04-13 19:20:30

○NSns11.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSns12.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSns13.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSns14.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSns2.fastpark.net2015-05-15 → 2016-03-22 · 4 obs

● 2015-05-15 23:42:04
● 2016-03-22 14:39:24
○ 2016-09-24 12:33:12
○ 2026-04-13 19:20:30

○NSpns11.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSpns12.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSpns13.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○NSpns14.cloudns.net2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○MXmail.h-email.net2015-10-17 → 2016-03-22 · 4 obs

● 2015-10-17 09:34:10
● 2016-03-22 14:39:24
○ 2016-09-24 12:33:12
○ 2026-04-13 19:20:30

○MXmail1.guiadosconcursos.com2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

○MXmail2.guiadosconcursos.com2017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

●A104.21.91.332026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

○A158.69.81.1192017-06-14 → 2017-06-14 · 4 obs

○ 2016-09-24 12:33:12
● 2017-06-14 12:54:00
○ 2026-02-19 20:19:26
○ 2026-04-13 19:20:30

●A172.67.165.952026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

○A185.53.177.82015-10-17 → 2016-03-22 · 5 obs

○ 2015-05-15 23:42:04
● 2015-10-17 09:34:10
● 2016-03-22 14:39:24
○ 2016-09-24 12:33:12
○ 2026-04-13 19:20:30

○A216.8.179.252015-05-15 → 2015-05-15 · 3 obs

● 2015-05-15 23:42:04
○ 2015-10-17 09:34:10
○ 2026-04-13 19:20:30

●A2606:4700:3030::6815:5b212026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

●A2606:4700:3033::ac43:a55f2026-02-19 → 2026-04-13 · 3 obs

○ 2017-06-14 12:54:00
● 2026-02-19 20:19:26
● 2026-04-13 19:20:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
guiadosconcursos.com	meiling.ns.cloudflare.com, khalid.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.53

NS records: meiling.ns.cloudflare.com, khalid.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for guiadosconcursos.com (unsigned zone)

⏱️ Timing

Total: 124ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.165.95, 104.21.91.33`
AAAA	2	`2606:4700:3033::ac43:a55f, 2606:4700:3030::6815:5b21`
NS	2	`khalid.ns.cloudflare.com, meiling.ns.cloudflare.com`
TXT	1	`google-site-verification=_0P-bxbLdPtFV4r`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`khalid.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

guiadosconcursos.com points to four IP numbers: 2606:4700:3030::6815:5b21, 2606:4700:3033::ac43:a55f, 104.21.91.33 and 172.67.165.95.

For instance, other host names www.cdn-box.com, scrab.pl, helpsmarketing.net, rentapphub.com and alfiecorp.com share IP numbers with guiadosconcursos.com.

Name Servers

guiadosconcursos.com is delegated to two name servers: khalid.ns.cloudflare.com and meiling.ns.cloudflare.com.

guiadosconcursos.com uses the same name server setup as other domains such as elandt14.com, ondeestudar.com, clowdr.com, pontoatual.com and energiaextra.com.

guiadosconcursos.com shares name servers with other domains at least partially, for example hkydna.net, mauslot.com, singari.info, bigamart.com and iptvinorge.com.

These name servers are commonly used with vasilii.ns.cloudflare.com, hattie.ns.cloudflare.com and joan.ns.cloudflare.com.

Host names with six IP numbers: host name khalid.ns.cloudflare.com points to: 2606:4700:58::a29f:2c35, 2803:f800:50::6ca2:c335, 2a06:98c1:50::ac40:2335, 108.162.195.53, 162.159.44.53 and 172.64.35.53; host name meiling.ns.cloudflare.com points to: 2606:4700:50::a29f:26fe, 2803:f800:50::6ca2:c2fe, 2a06:98c1:50::ac40:22fe, 108.162.194.254, 162.159.38.254 and 172.64.34.254.

guiadosconcursos.com - robtex.com