gc-cornell.com - robtex.com

gc-cornell.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:32f5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:d705🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.50.245Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.215.5🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdorthy.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3af9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A2803:f800:50::6ca2:c0f9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdorthy.ns.cloudflare.com
A2a06:98c1:50::ac40:20f9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdorthy.ns.cloudflare.com
A108.162.192.249🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A172.64.32.249🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A173.245.58.249🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
NSrayden.ns.cloudflare.com
A2606:4700:58::a29f:2ca3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrayden.ns.cloudflare.com
A2803:f800:50::6ca2:c3a3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrayden.ns.cloudflare.com
A2a06:98c1:50::ac40:23a3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrayden.ns.cloudflare.com
A108.162.195.163🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrayden.ns.cloudflare.com
A162.159.44.163Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrayden.ns.cloudflare.com
A172.64.35.163🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrayden.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.50.245, 172.67.215.5
IPv6 hints2606:4700:3030::6815:32f5, 2606:4700:3031::ac43:d705
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com
SOAdorthy.ns.cloudflare.comdns@cloudflare.com serial=2400600763

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778671866

Same first word

gc-cornell.com

DNS History

15 records (6 active, 9 former)

20162017201820192020202120222023202420252026NSdorthy.ns.cloudflare.comrayden.ns.cloudflare.coma.share-dns.comb.share-dns.netdns17.hichina.comdns18.hichina.comexpire1.gname-dns.comexpire2.gname-dns.comMXgcmail.gc-cornell.comA104.21.50.245172.67.215.52606:4700:3030::6815:32f52606:4700:3031::ac43:d705104.166.93.151CNAMEexp.gs-cdn.com
○NSa.share-dns.com2026-02-17 → 2026-05-13 · 2 obs
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
○NSb.share-dns.net2026-02-17 → 2026-05-13 · 2 obs
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
○NSdns17.hichina.com2015-07-03 → 2017-03-19 · 4 obs
● 2015-07-03 11:31:46
● 2017-03-19 09:02:54
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
○NSdns18.hichina.com2015-07-03 → 2017-03-19 · 4 obs
● 2015-07-03 11:31:46
● 2017-03-19 09:02:54
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
●NSdorthy.ns.cloudflare.com2026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
○NSexpire1.gname-dns.com2026-02-17 → 2026-02-17 · 4 obs
○ 2017-03-19 09:02:54
● 2026-02-17 10:24:56
○ 2026-05-04 22:14:46
○ 2026-05-13 11:46:46
○NSexpire2.gname-dns.com2026-02-17 → 2026-02-17 · 4 obs
○ 2017-03-19 09:02:54
● 2026-02-17 10:24:56
○ 2026-05-04 22:14:46
○ 2026-05-13 11:46:46
●NSrayden.ns.cloudflare.com2026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
○MXgcmail.gc-cornell.com2015-07-03 → 2017-03-19 · 4 obs
● 2015-07-03 11:31:46
● 2017-03-19 09:02:54
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
○A104.166.93.1512026-02-17 → 2026-05-13 · 2 obs
○ 2026-02-17 10:24:56
○ 2026-05-13 11:46:46
●A104.21.50.2452026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
●A172.67.215.52026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
●A2606:4700:3030::6815:32f52026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
●A2606:4700:3031::ac43:d7052026-05-04 → 2026-05-13 · 3 obs
○ 2026-02-17 10:24:56
● 2026-05-04 22:14:46
● 2026-05-13 11:46:46
○CNAMEexp.gs-cdn.com2026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 10:24:56
○ 2026-05-04 22:14:46
○ 2026-05-13 11:46:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
gc-cornell.comdorthy.ns.cloudflare.com, rayden.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.249

NS records: dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gc-cornell.com (unsigned zone)

⏱️ Timing

Total: 149ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.50.245, 172.67.215.5
AAAA22606:4700:3031::ac43:d705, 2606:4700:3030::6815:32f5
NS2dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dorthy.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

gc-cornell.com maps to four IP numbers: 2606:4700:3030::6815:32f5, 2606:4700:3031::ac43:d705, 104.21.50.245 and 172.67.215.5.

Other host names such as agridinternational.com, advertisingmyanmar.com, micoscft.com, www.freeinstagram.link and podty.me share IPs with gc-cornell.com.

Name Servers

Two name servers dorthy.ns.cloudflare.com and rayden.ns.cloudflare.com handle the delegation for gc-cornell.com.

gc-cornell.com shares the same name server setup as other domains, for example 12fei.com, idiniu.com, chenglaolao.com, jomdq.com and jnayzs.com.

gc-cornell.com at least partially shares name servers with other domains, for example digitales-betriebstagebuch.com, digart039.com.tw, westrivertowing.com, ankaracadde.com and gimnazjum10.pl.

these name servers are commonly used alongside jen.ns.cloudflare.com name servers.

Host names with six IP numbers:

dorthy.ns.cloudflare.com points to 2606:4700:50::adf5:3af9, 2803:f800:50::6ca2:c0f9, 2a06:98c1:50::ac40:20f9, 108.162.192.249, 172.64.32.249 and 173.245.58.249.

rayden.ns.cloudflare.com points to 2606:4700:58::a29f:2ca3, 2803:f800:50::6ca2:c3a3, 2a06:98c1:50::ac40:23a3, 108.162.195.163, 162.159.44.163 and 172.64.35.163.