www.core4tech.com - robtex.com

www.core4tech.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4347🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:d981🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.67.71Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.217.129🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.67.71, 172.67.217.129
IPv6 hints2606:4700:3030::6815:4347, 2606:4700:3032::ac43:d981
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=34, name=cloudflare-ech.com

core4tech.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4347🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:d981🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.67.71Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.217.129🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSblair.ns.cloudflare.com ⭐
NSsevki.ns.cloudflare.com
MXmail.arphost.com ⭐
TXTgoogle-site-verification=mF6VHYrJWYgW4066PfGMhTfhpdXwnIKYPxPNMg9yOtg
TXTv=spf1 mx include:_spf.core4tech_com._d.easydmarc.pro ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.67.71, 172.67.217.129
IPv6 hints2606:4700:3030::6815:4347, 2606:4700:3032::ac43:d981
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=34, name=cloudflare-ech.com
SOAblair.ns.cloudflare.comdns@cloudflare.com serial=2403826909

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DNS History

14 records (4 active, 10 former)

20162017201820192020202120222023202420252026NSns1.mytrafficmanagement.comns11025.ztomy.comns2.mytrafficmanagement.comns21025.ztomy.comA104.21.67.71172.67.217.1292606:4700:3030::6815:43472606:4700:3032::ac43:d981104.130.124.96138.201.187.241141.8.226.19206.51.235.196206.51.235.19850.56.218.189
○NSns1.mytrafficmanagement.com2016-02-25 → 2016-06-18 · 5 obs
○ 2015-11-24 23:00:32
● 2016-02-25 13:20:26
● 2016-06-18 22:24:36
○ 2019-03-17 22:37:02
○ 2026-05-13 23:41:12
○NSns11025.ztomy.com2015-11-24 → 2015-11-24 · 3 obs
● 2015-11-24 23:00:32
○ 2016-02-25 13:20:26
○ 2026-05-13 23:41:12
○NSns2.mytrafficmanagement.com2016-02-25 → 2016-06-18 · 5 obs
○ 2015-11-24 23:00:32
● 2016-02-25 13:20:26
● 2016-06-18 22:24:36
○ 2019-03-17 22:37:02
○ 2026-05-13 23:41:12
○NSns21025.ztomy.com2015-11-24 → 2015-11-24 · 3 obs
● 2015-11-24 23:00:32
○ 2016-02-25 13:20:26
○ 2026-05-13 23:41:12
○A104.130.124.962016-06-18 → 2016-06-18 · 4 obs
○ 2016-02-25 13:20:26
● 2016-06-18 22:24:36
○ 2017-02-13 09:53:20
○ 2026-05-13 23:41:12
●A104.21.67.712026-02-15 → 2026-05-13 · 3 obs
○ 2019-03-17 22:37:02
● 2026-02-15 11:34:44
● 2026-05-13 23:41:12
○A138.201.187.2412017-02-13 → 2017-02-13 · 4 obs
○ 2016-06-18 22:24:36
● 2017-02-13 09:53:20
○ 2019-03-17 22:37:02
○ 2026-05-13 23:41:12
○A141.8.226.192015-11-24 → 2015-11-24 · 4 obs
○ 2015-07-23 21:03:32
● 2015-11-24 23:00:32
○ 2016-02-25 13:20:26
○ 2026-05-13 23:41:12
●A172.67.217.1292026-02-15 → 2026-05-13 · 3 obs
○ 2019-03-17 22:37:02
● 2026-02-15 11:34:44
● 2026-05-13 23:41:12
○A206.51.235.1962019-03-17 → 2019-03-17 · 4 obs
○ 2017-02-13 09:53:20
● 2019-03-17 22:37:02
○ 2026-02-15 11:34:44
○ 2026-05-13 23:41:12
○A206.51.235.1982015-07-23 → 2015-07-23 · 3 obs
● 2015-07-23 21:03:32
○ 2015-11-24 23:00:32
○ 2026-05-13 23:41:12
●A2606:4700:3030::6815:43472026-02-15 → 2026-05-13 · 3 obs
○ 2019-03-17 22:37:02
● 2026-02-15 11:34:44
● 2026-05-13 23:41:12
●A2606:4700:3032::ac43:d9812026-02-15 → 2026-05-13 · 3 obs
○ 2019-03-17 22:37:02
● 2026-02-15 11:34:44
● 2026-05-13 23:41:12
○A50.56.218.1892016-02-25 → 2016-02-25 · 4 obs
○ 2015-11-24 23:00:32
● 2016-02-25 13:20:26
○ 2016-06-18 22:24:36
○ 2026-05-13 23:41:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
core4tech.comblair.ns.cloudflare.com, sevki.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.121

NS records: blair.ns.cloudflare.com, sevki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core4tech.com (unsigned zone)

⏱️ Timing

Total: 350ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.67.71, 172.67.217.129
AAAA22606:4700:3030::6815:4347, 2606:4700:3032::ac43:d981
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.core4tech.com maps to four IP numbers: 2606:4700:3030::6815:4347, 2606:4700:3032::ac43:d981, 104.21.67.71 and 172.67.217.129.

other host names include el.lk, gov.cn.nwhgf.lishuiruifeng.com, mail.kms.jo, mail.goodhotelguide.com and fahrzeugveredlung-sachsen.de; they share IP numbers with www.core4tech.com.