`13seeruniversity.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:853^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8263^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.83^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.130.99^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bart.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c147^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bart.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2147^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bart.ns.cloudflare.com`
		A	108.162.193.71^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	172.64.33.71^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	173.245.59.71^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
NS	`hera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hera.ns.cloudflare.com`
		A	108.162.192.162^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	172.64.32.162^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
		A	173.245.58.162^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hera.ns.cloudflare.com`
MX	`mail.idp365.net` ⭐
		A	217.19.248.131^{🇬🇧 SAFENAMES-AS217.19.248.0/24 Safenames Datacentre}
			PTR	`redirect1.safenames.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.8.83, 172.67.130.99
		IPv6	2606:4700:3033::6815:853, 2606:4700:3037::ac43:8263
SOA	`bart.ns.cloudflare.com`dns@cloudflare.com serial=2399309979

`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=1774606072

Same first word

13seeruniversity.com

DNS History

14 records (7 active, 7 former)

●NSbart.ns.cloudflare.com2026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

○NSdns01.penton.com2015-06-16 → 2016-07-14 · 4 obs

● 2015-06-16 17:42:32
● 2016-07-14 12:07:36
○ 2018-12-02 22:44:34
○ 2026-03-27 10:15:00

○NSdns02.penton.com2015-06-16 → 2016-07-14 · 4 obs

● 2015-06-16 17:42:32
● 2016-07-14 12:07:36
○ 2018-12-02 22:44:34
○ 2026-03-27 10:15:00

○NSdns03.penton.com2015-06-16 → 2016-07-14 · 4 obs

● 2015-06-16 17:42:32
● 2016-07-14 12:07:36
○ 2018-12-02 22:44:34
○ 2026-03-27 10:15:00

○NSdns1.safenames.com2018-12-02 → 2018-12-02 · 4 obs

○ 2016-07-14 12:07:36
● 2018-12-02 22:44:34
○ 2026-03-12 03:44:04
○ 2026-03-27 10:15:00

○NSdns2.safenames.net2018-12-02 → 2018-12-02 · 4 obs

○ 2016-07-14 12:07:36
● 2018-12-02 22:44:34
○ 2026-03-12 03:44:04
○ 2026-03-27 10:15:00

○NSdns3.safenames.org2018-12-02 → 2018-12-02 · 4 obs

○ 2016-07-14 12:07:36
● 2018-12-02 22:44:34
○ 2026-03-12 03:44:04
○ 2026-03-27 10:15:00

●NShera.ns.cloudflare.com2026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

●MXmail.idp365.net2018-12-02 → 2026-03-27 · 2 obs

● 2018-12-02 22:44:34
● 2026-03-27 10:15:00

●A104.21.8.832026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

●A172.67.130.992026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

○A217.19.248.1322018-12-02 → 2018-12-02 · 3 obs

● 2018-12-02 22:44:34
○ 2026-03-12 03:44:04
○ 2026-03-27 10:15:00

●A2606:4700:3033::6815:8532026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

●A2606:4700:3037::ac43:82632026-03-12 → 2026-03-27 · 3 obs

○ 2018-12-02 22:44:34
● 2026-03-12 03:44:04
● 2026-03-27 10:15:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
13seeruniversity.com	bart.ns.cloudflare.com, hera.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:173.245.59.71

NS records: bart.ns.cloudflare.com, hera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 13seeruniversity.com (unsigned zone)

⏱️ Timing

Total: 174ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.8.83, 172.67.130.99`
AAAA	2	`2606:4700:3033::6815:853, 2606:4700:3037::ac43:8263`
NS	2	`bart.ns.cloudflare.com, hera.ns.cloudflare.com`
MX	1	`mail.idp365.net (pri: 10)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bart.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

13seeruniversity.com refers to four IP numbers: 2606:4700:3033::6815:853, 2606:4700:3037::ac43:8263, 104.21.8.83 and 172.67.130.99.

Other host names, for instance fokus.io, www.sindhexpress.com.pk, cognesium.org, oneclicktravel.in and xezowomekiscollective.digital share IP numbers with 13seeruniversity.com.

Name Servers

13seeruniversity.com's delegation uses two name servers: bart.ns.cloudflare.com and hera.ns.cloudflare.com.

13seeruniversity.com uses the same name server setup as other domains, such as gmsconference.com, americancityandcountyguide.com, productscan.com, taylorandfrancis.biz and weldinfo.biz.

13seeruniversity.com at least partially shares name servers with other domains, including promegaweb.com, 499gorabet.com, residentialstone.us, lantoga.net and reischrequest.com.

These name servers are often used with maria.ns.cloudflare.com and kai.ns.cloudflare.com.

Host names with six IP numbers:

bart.ns.cloudflare.com points to 2606:4700:58::adf5:3b47, 2803:f800:50::6ca2:c147, 2a06:98c1:50::ac40:2147, 108.162.193.71, 172.64.33.71 and 173.245.59.71.

hera.ns.cloudflare.com points to 2606:4700:50::adf5:3aa2, 2803:f800:50::6ca2:c0a2, 2a06:98c1:50::ac40:20a2, 108.162.192.162, 172.64.32.162 and 173.245.58.162.

Mail Servers

A single mail server handles 13seeruniversity.com, mail.idp365.net.

13seeruniversity.com shares the same mail server setup as other domains, for instance fragrancex.be, havrix.eu, tfebooks.eu, ifosanitar.cn and aquenta.services.

Host name mail.idp365.net resolves to a single IP: 217.19.248.131.

13seeruniversity.com - robtex.com