clinicaltrialmatch.com - robtex.com

clinicaltrialmatch.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:dff5Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:194aCloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.74Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.223.245Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdrake.ns.cloudflare.com ⭐
NSsydney.ns.cloudflare.com
MXinbound-smtp.us-east-1.amazonaws.com ⭐
A3.211.210.226🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-211-210-226.compute-1.amazonaws.com
A44.206.9.87🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
A44.210.166.32🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
A54.164.173.191🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix
A54.197.5.236🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.74, 172.67.223.245
IPv6 hints2606:4700:3033::ac43:dff5, 2606:4700:3036::6815:194a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=77, name=cloudflare-ech.com
SOAdrake.ns.cloudflare.comdns@cloudflare.com serial=2409751670

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=1784641337

Same first word

clinicaltrialmatch.com

DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSdrake.ns.cloudflare.comsydney.ns.cloudflare.comns3.afternic.comns4.afternic.comns77.domaincontrol.comns78.domaincontrol.comMXinbound-smtp.us-east-1.amazonaws.commailstore1.secureserver.netsmtp.secureserver.netA104.21.25.74172.67.223.2452606:4700:3033::ac43:dff52606:4700:3036::6815:194a13.248.169.4850.63.202.4576.223.54.146
●NSdrake.ns.cloudflare.com2026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
○NSns3.afternic.com2026-05-18 → 2026-05-18 · 4 obs
○ 2017-07-08 12:54:02
● 2026-05-18 22:53:08
○ 2026-07-21 13:57:04
○ 2026-07-21 13:57:08
○NSns4.afternic.com2026-05-18 → 2026-05-18 · 4 obs
○ 2017-07-08 12:54:02
● 2026-05-18 22:53:08
○ 2026-07-21 13:57:04
○ 2026-07-21 13:57:08
○NSns77.domaincontrol.com2015-06-08 → 2017-07-08 · 4 obs
● 2015-06-08 04:21:54
● 2017-07-08 12:54:02
○ 2026-05-18 22:53:08
○ 2026-07-21 13:57:08
○NSns78.domaincontrol.com2015-06-08 → 2017-07-08 · 4 obs
● 2015-06-08 04:21:54
● 2017-07-08 12:54:02
○ 2026-05-18 22:53:08
○ 2026-07-21 13:57:08
●NSsydney.ns.cloudflare.com2026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
●MXinbound-smtp.us-east-1.amazonaws.com2026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
○MXmailstore1.secureserver.net2015-06-08 → 2017-07-08 · 4 obs
● 2015-06-08 04:21:54
● 2017-07-08 12:54:02
○ 2026-05-18 22:53:08
○ 2026-07-21 13:57:08
○MXsmtp.secureserver.net2015-06-08 → 2017-07-08 · 4 obs
● 2015-06-08 04:21:54
● 2017-07-08 12:54:02
○ 2026-05-18 22:53:08
○ 2026-07-21 13:57:08
●A104.21.25.742026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
○A13.248.169.482026-05-18 → 2026-05-18 · 4 obs
○ 2017-07-08 12:54:02
● 2026-05-18 22:53:08
○ 2026-07-21 13:57:04
○ 2026-07-21 13:57:08
●A172.67.223.2452026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
●A2606:4700:3033::ac43:dff52026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
●A2606:4700:3036::6815:194a2026-07-21 → 2026-07-21 · 3 obs
○ 2026-05-18 22:53:08
● 2026-07-21 13:57:04
● 2026-07-21 13:57:08
○A50.63.202.452015-06-08 → 2017-07-08 · 4 obs
● 2015-06-08 04:21:54
● 2017-07-08 12:54:02
○ 2026-05-18 22:53:08
○ 2026-07-21 13:57:08
○A76.223.54.1462026-05-18 → 2026-05-18 · 4 obs
○ 2017-07-08 12:54:02
● 2026-05-18 22:53:08
○ 2026-07-21 13:57:04
○ 2026-07-21 13:57:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
clinicaltrialmatch.comsydney.ns.cloudflare.com, drake.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.102

NS records: sydney.ns.cloudflare.com, drake.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for clinicaltrialmatch.com (unsigned zone)

⏱️ Timing

Total: 2566ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.223.245, 104.21.25.74
AAAA22606:4700:3033::ac43:dff5, 2606:4700:3036::6815:194a
NS2drake.ns.cloudflare.com, sydney.ns.cloudflare.com
MX1inbound-smtp.us-east-1.amazonaws.com (pr
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1drake.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

clinicaltrialmatch.com resolves to four IP addresses: 104.21.25.74, 172.67.223.245, 2606:4700:3033::ac43:dff5 and 2606:4700:3036::6815:194a.

Name Servers

clinicaltrialmatch.com has two authoritative name servers — drake.ns.cloudflare.com and sydney.ns.cloudflare.com.

Mail Servers

Mail for clinicaltrialmatch.com is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32 and two other.