`postdocexchange.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:15a9^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:c7a3^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.169^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.163^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`liz.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3abd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`liz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0bd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`liz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20bd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`liz.ns.cloudflare.com`
		A	108.162.192.189^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`liz.ns.cloudflare.com`
		A	172.64.32.189^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`liz.ns.cloudflare.com`
		A	173.245.58.189^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`liz.ns.cloudflare.com`
NS	`vern.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.21.169, 172.67.199.163
		IPv6	2606:4700:3030::6815:15a9, 2606:4700:3032::ac43:c7a3
SOA	`liz.ns.cloudflare.com`dns@cloudflare.com serial=2399137028

`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=1774420272

Same first word

postdocexchange.com

DNS History

6 records (6 active, 0 former)

●NSliz.ns.cloudflare.com2026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

●NSvern.ns.cloudflare.com2026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

●A104.21.21.1692026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

●A172.67.199.1632026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

●A2606:4700:3030::6815:15a92026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

●A2606:4700:3032::ac43:c7a32026-03-23 → 2026-03-25 · 2 obs

● 2026-03-23 10:58:32
● 2026-03-25 06:38:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...	-
postdocexchange.com	vern.ns.cloudflare.com, liz.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.243

NS records: vern.ns.cloudflare.com, liz.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postdocexchange.com (unsigned zone)

⏱️ Timing

Total: 101ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.163, 104.21.21.169`
AAAA	2	`2606:4700:3032::ac43:c7a3, 2606:4700:3030::6815:15a9`
NS	2	`liz.ns.cloudflare.com, vern.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`liz.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

postdocexchange.com points to four IP numbers: 2606:4700:3030::6815:15a9, 2606:4700:3032::ac43:c7a3, 104.21.21.169 and 172.67.199.163.

Other host names, for instance www.cuckold-chat-city.com, www.gold-parfum.com.ua, portalveterinaria.com, alldocumentexplor.pro and liangshandibang.com share IP numbers with postdocexchange.com.

Name Servers

postdocexchange.com's delegation is to two name servers liz.ns.cloudflare.com and vern.ns.cloudflare.com.

postdocexchange.com shares the same name server configuration as other domains, such as postdoctor.com, utemps.com, academicamerica.net, liuxue.us and ukjobs.biz.

postdocexchange.com at least partially shares its name servers with other domains, for instance iceconstruct.cyou, kep6.com, racinghome.co.uk, cam(0x666170)s.com and coldmark.cyou.

These name servers are often used together with the name servers sri.ns.cloudflare.com.

Host names with six IP numbers:

liz.ns.cloudflare.com points to: 2606:4700:50::adf5:3abd, 2803:f800:50::6ca2:c0bd, 2a06:98c1:50::ac40:20bd, 108.162.192.189, 172.64.32.189 and 173.245.58.189.

vern.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf3, 2803:f800:50::6ca2:c1f3, 2a06:98c1:50::ac40:21f3, 108.162.193.243, 172.64.33.243 and 173.245.59.243.

postdocexchange.com - robtex.com