`postuonline.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b508^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:53c6^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.198^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.181.8^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jim.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jim.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jim.ns.cloudflare.com`
		A	108.162.193.125^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	172.64.33.125^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	173.245.59.125^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
NS	`serenity.ns.cloudflare.com`
		A	2606:4700:50::a29f:266c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`serenity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`serenity.ns.cloudflare.com`
		A	108.162.194.108^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	162.159.38.108^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	172.64.34.108^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
TXT	`ca3-6c027eadc9cc45bd936d0c5666debc4f`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.198, 172.67.181.8
		IPv6 hints	2606:4700:3031::ac43:b508, 2606:4700:3036::6815:53c6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=113, name=cloudflare-ech.com
SOA	`jim.ns.cloudflare.com`dns@cloudflare.com serial=2407444165

`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=1785877884

Same first word

postuonline.com

Similar names

optusonline.com

optusonline.net

pensolution.info

pnesolution.com

spoutonline.net

pensolution.com

onlinesupto.com

spoutonline.tv

spoutonline.com

toupsonline.com

DNS History

14 records (6 active, 8 former)

●NSjim.ns.cloudflare.com2026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

○NSns1.cen.ct.gov2015-07-07 → 2016-03-26 · 4 obs

● 2015-07-07 23:31:22
● 2016-03-26 05:20:00
○ 2017-01-04 17:45:00
○ 2026-08-04 21:34:30

○NSns15.domaincontrol.com2017-01-04 → 2017-01-04 · 4 obs

○ 2016-03-26 05:20:00
● 2017-01-04 17:45:00
○ 2026-07-02 23:16:00
○ 2026-08-04 21:34:30

○NSns16.domaincontrol.com2017-01-04 → 2017-01-04 · 4 obs

○ 2016-03-26 05:20:00
● 2017-01-04 17:45:00
○ 2026-07-02 23:16:00
○ 2026-08-04 21:34:30

○NSns2.cen.ct.gov2015-07-07 → 2016-03-26 · 4 obs

● 2015-07-07 23:31:22
● 2016-03-26 05:20:00
○ 2017-01-04 17:45:00
○ 2026-08-04 21:34:30

●NSserenity.ns.cloudflare.com2026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

○MXmailstore1.secureserver.net2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 17:45:00
○ 2026-07-02 23:16:00
○ 2026-08-04 21:34:30

○MXsmtp.secureserver.net2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 17:45:00
○ 2026-07-02 23:16:00
○ 2026-08-04 21:34:30

●A104.21.83.1982026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

○A107.180.50.2122017-01-04 → 2017-01-04 · 4 obs

○ 2016-03-26 05:20:00
● 2017-01-04 17:45:00
○ 2026-07-02 23:16:00
○ 2026-08-04 21:34:30

●A172.67.181.82026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

○A204.232.131.272015-07-07 → 2016-03-26 · 4 obs

● 2015-07-07 23:31:22
● 2016-03-26 05:20:00
○ 2017-01-04 17:45:00
○ 2026-08-04 21:34:30

●A2606:4700:3031::ac43:b5082026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

●A2606:4700:3036::6815:53c62026-07-02 → 2026-08-04 · 3 obs

○ 2017-01-04 17:45:00
● 2026-07-02 23:16:00
● 2026-08-04 21:34:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, j.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net...	-
postuonline.com	jim.ns.cloudflare.com, serenity.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.125

NS records: jim.ns.cloudflare.com, serenity.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postuonline.com (unsigned zone)

⏱️ Timing

Total: 233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.83.198, 172.67.181.8`
AAAA	2	`2606:4700:3036::6815:53c6, 2606:4700:3031::ac43:b508`
NS	2	`jim.ns.cloudflare.com, serenity.ns.cloudflare.com`
TXT	1	`ca3-6c027eadc9cc45bd936d0c5666debc4f`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jim.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

postuonline.com points to the four IP addresses 104.21.83.198, 172.67.181.8, 2606:4700:3031::ac43:b508 and 2606:4700:3036::6815:53c6.

www.shankerdevcampus.edu.np.cdn.cloudflare.net, pulseventures24.sbs, lydgsc.com plus two other host names have IP numbers in common with postuonline.com.

Name Servers

Two name servers handle the delegation for postuonline.com: jim.ns.cloudflare.com and serenity.ns.cloudflare.com.

The name server configuration of postuonline.com is shared with other domains, for instance degrees-purdueuglobal.com, gcu-programs.com, openai-test242.workers.dev and two others.

At least some of postuonline.com's name servers are shared with other domains, for example kcnawatch.xyz, brsd.ab.ca, googleplayroad.com and two more.

These name servers tend to be used in conjunction with the name servers gina.ns.cloudflare.com.

Hosts with 6 IP addresses each:

jim.ns.cloudflare.com resolves to 108.162.193.125, 172.64.33.125 and 173.245.59.125 among others, with 3 other IP addresses in total.

serenity.ns.cloudflare.com resolves to 108.162.194.108, 162.159.38.108 and 172.64.34.108 among others, with 3 other IP addresses in total.

postuonline.com - robtex.com

postuonline.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`postuonline.com`

`com`