checkingscience.com - dns.ninja

checkingscience.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:8f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:8013🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.0.143Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.128.19🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdoug.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b9f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdoug.ns.cloudflare.com
A2803:f800:50::6ca2:c19f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdoug.ns.cloudflare.com
A2a06:98c1:50::ac40:219f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdoug.ns.cloudflare.com
A108.162.193.159🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdoug.ns.cloudflare.com
A172.64.33.159🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdoug.ns.cloudflare.com
A173.245.59.159🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdoug.ns.cloudflare.com
NSsusan.ns.cloudflare.com
A2606:4700:50::a29f:26c7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsusan.ns.cloudflare.com
A2803:f800:50::6ca2:c2c7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsusan.ns.cloudflare.com
A2a06:98c1:50::ac40:22c7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsusan.ns.cloudflare.com
A108.162.194.199🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsusan.ns.cloudflare.com
A162.159.38.199Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsusan.ns.cloudflare.com
A172.64.34.199🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsusan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.0.143, 172.67.128.19
IPv6 hints2606:4700:3032::6815:8f, 2606:4700:3033::ac43:8013
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=146, name=cloudflare-ech.com
SOAdoug.ns.cloudflare.comdns@cloudflare.com serial=2407349090

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=1785598967

Same first word

checkingscience.com

DNS History

12 records (6 active, 6 former)

NSdoug.ns.cloudflare.comsusan.ns.cloudflare.comns61.domaincontrol.comns62.domaincontrol.comA104.21.0.143172.67.128.192606:4700:3032::6815:8f2606:4700:3033::ac43:801313.248.213.452606:4700:3034::ac43:80132606:4700:3037::6815:8f76.223.67.189
●NSdoug.ns.cloudflare.com2026-04-30 → 2026-08-01 · 2 obs
● 2026-04-30 19:11:50
● 2026-08-01 15:54:40
○NSns61.domaincontrol.com2026-04-30 → 2026-08-01 · 2 obs
○ 2026-04-30 19:11:50
○ 2026-08-01 15:54:40
○NSns62.domaincontrol.com2026-04-30 → 2026-08-01 · 2 obs
○ 2026-04-30 19:11:50
○ 2026-08-01 15:54:40
●NSsusan.ns.cloudflare.com2026-04-30 → 2026-08-01 · 2 obs
● 2026-04-30 19:11:50
● 2026-08-01 15:54:40
●A104.21.0.1432026-04-30 → 2026-08-01 · 2 obs
● 2026-04-30 19:11:50
● 2026-08-01 15:54:40
○A13.248.213.452026-04-30 → 2026-08-01 · 2 obs
○ 2026-04-30 19:11:50
○ 2026-08-01 15:54:40
●A172.67.128.192026-04-30 → 2026-08-01 · 2 obs
● 2026-04-30 19:11:50
● 2026-08-01 15:54:40
●A2606:4700:3032::6815:8f2026-07-16 → 2026-08-01 · 3 obs
○ 2026-06-13 01:10:12
● 2026-07-16 03:47:12
● 2026-08-01 15:54:40
●A2606:4700:3033::ac43:80132026-07-16 → 2026-08-01 · 3 obs
○ 2026-06-13 01:10:12
● 2026-07-16 03:47:12
● 2026-08-01 15:54:40
○A2606:4700:3034::ac43:80132026-04-30 → 2026-06-13 · 4 obs
● 2026-04-30 19:11:50
● 2026-06-13 01:10:12
○ 2026-07-16 03:47:12
○ 2026-08-01 15:54:40
○A2606:4700:3037::6815:8f2026-04-30 → 2026-06-13 · 4 obs
● 2026-04-30 19:11:50
● 2026-06-13 01:10:12
○ 2026-07-16 03:47:12
○ 2026-08-01 15:54:40
○A76.223.67.1892026-04-30 → 2026-08-01 · 2 obs
○ 2026-04-30 19:11:50
○ 2026-08-01 15:54:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net...-
checkingscience.comdoug.ns.cloudflare.com, susan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.159

NS records: doug.ns.cloudflare.com, susan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkingscience.com (unsigned zone)

⏱️ Timing

Total: 140ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.0.143, 172.67.128.19
AAAA22606:4700:3032::6815:8f, 2606:4700:3033::ac43:8013
NS2doug.ns.cloudflare.com, susan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1doug.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

checkingscience.com directs to four IP numbers, which are 104.21.0.143, 172.67.128.19, 2606:4700:3032::6815:8f and 2606:4700:3033::ac43:8013.

get-trustcards.com, capsoltechnologies.com, cloudzone.com.tr plus two other host names have IP numbers in common with checkingscience.com.

Name Servers

DNS delegation for checkingscience.com points to two name servers: doug.ns.cloudflare.com and susan.ns.cloudflare.com.

The name server configuration of checkingscience.com is shared with other domains, for instance qkyoku.net, mursego.com, url2.biz and two others.

At least some of checkingscience.com's name servers are shared with other domains, for example loot.in, 3rd3rd.com, janvdh.be and two more.

These name servers are often deployed together with the name servers chan.ns.cloudflare.com, damon.ns.cloudflare.com, leonard.ns.cloudflare.com and denver.ns.cloudflare.com.

Hosts with 6 IP addresses each:

doug.ns.cloudflare.com has IP addresses 108.162.193.159, 172.64.33.159 and 173.245.59.159, plus 3 other.

susan.ns.cloudflare.com has IP addresses 108.162.194.199, 162.159.38.199 and 172.64.34.199, plus 3 other.