sciencefeedback.co - robtex.com

sciencefeedback.co

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:147f🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:c0e5🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.20.127Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.192.229🇺🇸 Cloudflare172.67.192.0/20 , 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
NSlia.ns.cloudflare.com
A2606:4700:50::adf5:3ab9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlia.ns.cloudflare.com
A2803:f800:50::6ca2:c0b9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlia.ns.cloudflare.com
A2a06:98c1:50::ac40:20b9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlia.ns.cloudflare.com
A108.162.192.185🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlia.ns.cloudflare.com
A172.64.32.185🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlia.ns.cloudflare.com
A173.245.58.185🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlia.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c06::1a🇺🇸 Google2607:f8b0::/32
PTRdz-in-f26.1e100.net
A142.250.101.26🇺🇸 Google142.250.101.0/24
PTRdz-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.27🇺🇸 Google173.194.76.0/24
PTRws-in-f27.1e100.net
TXTgoogle-site-verification=OsFG2L9iIDrI2VUNMpQm9anLO1xp_dCOn97FQAFQdEc
TXTgoogle-site-verification=Zw6AaW7a9URPZidsdvjdkx6aN2mY4Y5PZtR5dQHSsOw
TXTv=spf1 include:servers.mcsv.net include:_mailcust.gandi.net a mx include:_spf...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.20.127, 172.67.192.229
IPv6 hints2606:4700:3033::6815:147f, 2606:4700:3035::ac43:c0e5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com
SOAdoug.ns.cloudflare.comdns@cloudflare.com serial=2400325024

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759632470
rank #769872 globally
rank #3901 in the tld

Same first word

sciencefeedback.co

DNS History

15 records (11 active, 4 former)

2020202120222023202420252026NSdoug.ns.cloudflare.comlia.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.20.127172.67.192.2292606:4700:3033::6815:147f2606:4700:3035::ac43:c0e5104.31.70.133104.31.71.1332606:4700:30::681f:46852606:4700:30::681f:4785
●NSdoug.ns.cloudflare.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●NSlia.ns.cloudflare.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●MXalt1.aspmx.l.google.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●MXalt2.aspmx.l.google.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●MXalt3.aspmx.l.google.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●MXalt4.aspmx.l.google.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●MXaspmx.l.google.com2019-03-31 → 2026-04-12 · 2 obs
● 2019-03-31 06:12:46
● 2026-04-12 19:39:54
●A104.21.20.1272026-02-21 → 2026-04-12 · 3 obs
○ 2019-03-31 06:12:46
● 2026-02-21 15:06:12
● 2026-04-12 19:39:54
○A104.31.70.1332019-03-31 → 2019-03-31 · 3 obs
● 2019-03-31 06:12:46
○ 2026-02-21 15:06:12
○ 2026-04-12 19:39:54
○A104.31.71.1332019-03-31 → 2019-03-31 · 3 obs
● 2019-03-31 06:12:46
○ 2026-02-21 15:06:12
○ 2026-04-12 19:39:54
●A172.67.192.2292026-02-21 → 2026-04-12 · 3 obs
○ 2019-03-31 06:12:46
● 2026-02-21 15:06:12
● 2026-04-12 19:39:54
○A2606:4700:30::681f:46852019-03-31 → 2019-03-31 · 3 obs
● 2019-03-31 06:12:46
○ 2026-02-21 15:06:12
○ 2026-04-12 19:39:54
○A2606:4700:30::681f:47852019-03-31 → 2019-03-31 · 3 obs
● 2019-03-31 06:12:46
○ 2026-02-21 15:06:12
○ 2026-04-12 19:39:54
●A2606:4700:3033::6815:147f2026-02-21 → 2026-04-12 · 3 obs
○ 2019-03-31 06:12:46
● 2026-02-21 15:06:12
● 2026-04-12 19:39:54
●A2606:4700:3035::ac43:c0e52026-02-21 → 2026-04-12 · 3 obs
○ 2019-03-31 06:12:46
● 2026-02-21 15:06:12
● 2026-04-12 19:39:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coa.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co-
sciencefeedback.colia.ns.cloudflare.com, doug.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.185

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sciencefeedback.co (unsigned zone)

⏱️ Timing

Total: 641ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.20.127, 172.67.192.229
AAAA22606:4700:3035::ac43:c0e5, 2606:4700:3033::6815:147f
NS2doug.ns.cloudflare.com, lia.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT3google-site-verification=OsFG2L9iIDrI2VU, google-site-verification=Zw6AaW7a9URPZid...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1doug.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

Four IP numbers are pointed to by sciencefeedback.co: 2606:4700:3033::6815:147f, 2606:4700:3035::ac43:c0e5, 104.21.20.127 and 172.67.192.229.

other host names including lifecycle.app, qdxfaz.com, esk-sib.ru, getwebdefender.com and ruijingzc.cn share IP numbers with sciencefeedback.co.

Name Servers

sciencefeedback.co is delegated to two name servers doug.ns.cloudflare.com and lia.ns.cloudflare.com.

sciencefeedback.co shares the same name server setup as other domains, for instance eletronicasantafelicia.com.br, buyu922.com, buyu0387.com, trai(0x6e756465).com and buyu62.com.

sciencefeedback.co at least partially shares name servers with other domains, for instance chrch.us, numanzia.com, christgirl.com, trumpshowdown.com and xunmaxs.com.

These name servers are commonly used alongside quentin.ns.cloudflare.com and chan.ns.cloudflare.com.

Host names with six IP numbers:

Host name doug.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9f, 2803:f800:50::6ca2:c19f, 2a06:98c1:50::ac40:219f, 108.162.193.159, 172.64.33.159 and 173.245.59.159.

Host name lia.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab9, 2803:f800:50::6ca2:c0b9, 2a06:98c1:50::ac40:20b9, 108.162.192.185, 172.64.32.185 and 173.245.58.185.

Mail Servers

sciencefeedback.co is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

sciencefeedback.co shares some mail servers with other domains, at least partially, for instance ns500765.ns500693.ns500699.ns500699.ns500699.ns500693.ns500693.ns500699.ns500699.ns500693.ns500693.ns500699.ns500612.ns500110.dtrkdll.com, ns500759.ns500758.ns500759.ns500759.ns500735.ns500698.ns500736.ns500736.ns500698.ns500576.ns500619.ns500619.ns500619.trackreceptor.com, ns500754.ns500742.ns500754.ns500742.ns500671.ns500671.ns500671.ns500704.ns500649.ns500671.ns500678.ns500649.ns500666.ns500653.ns500153.tenderladiesbz.com, ns500698.ns500759.ns500758.ns500698.ns500698.ns500698.ns500735.ns500698.ns500736.ns500708.ns500698.ns500686.ns500576.ns500576.trackreceptor.com and ns500698.ns500758.ns500759.ns500698.ns500735.ns500736.ns500736.ns500698.ns500736.ns500576.ns500698.ns500576.ns500686.ns500619.ns500619.trackreceptor.com.

these mail servers are often used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c06::1a and 142.250.101.26

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.26

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.26

alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.26

alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.27