tc.csidn.com - robtex.com

tc.csidn.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a1c1🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:f3e🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.62Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.161.193🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.62, 172.67.161.193
IPv6 hints2606:4700:3030::ac43:a1c1, 2606:4700:3034::6815:f3e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com

csidn.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a1c1🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:f3e🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.62Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.161.193🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgreg.ns.cloudflare.com ⭐
NSjill.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(20)
MXalt2.aspmx.l.google.com(20)
MXaspmx2.googlemail.com(30)
MXaspmx3.googlemail.com(30)
TXTglobalsign-domain-verification=cbkiCLDFAqk8t4SzdW1WBHhE9tYlm0Xdnv8qeCiQWX
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.62, 172.67.161.193
IPv6 hints2606:4700:3030::ac43:a1c1, 2606:4700:3034::6815:f3e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com
SOAgreg.ns.cloudflare.comdns@cloudflare.com serial=2402674171

Same first word

tc.com
tc.ph
tc.gob.do
tc.be
tc.com.sg
tc.ae
tc.com.mx
tc.ro
tc.ca
tc.mk
tc.net
tc.al
tc.k12.ar.us
tc.co.uk
tc.uz
tc.com.br
tc.cn
tc.uy
tc.nu
tc.js.cn
tc.te.ua
tc.media
tc.gc.ca
tc.co.th
tc.ht
tc.se
tc.cx
tc.tn
tc.co
tc.nz
tc.la
tc.ws
tc.by
tc.si
tc.com.tr
tc.im
tc.management
tc.co.za
tc.co.nz
tc.pl
tc.ma
tc.dk
tc.com.ru
tc.de
tc.kg
tc.com.pl
tc.no
tc.com.ua
tc.al.gov.br
tc.lt
tc.ee
tc.st
tc.in.th
tc.ink
tc.church
tc.net.pl
tc.com.tw
tc.kz
tc.sg
tc.lviv.ua
tc.lv
tc.org.tw
tc.hatenablog.com
tc.df.gov.br
tc.am
tc.vc
tc.id.au
tc.edu
tc.ru
tc.is
tc.vg
tc.edu.tw
tc.net.br
tc.com.sa
tc.su
tc.my
tc.gob.pe
tc.br
tc.com.na
tc.nl
tc
tc.org
tc.co.kr
tc.cc
tc.to
tc.au
tc.tc
tc.com.cn
tc.tv
tc.cz
tc.services
tc.hu
tc.solutions
tc.web.tr

Similar names

ct.uz
ct.com.au
ct.ws
ct.ro
ct.com.kz
ct.se
ct.trafficmanager.net
ct.ventures
ct.cx
ct.org.au
ct.com.ar
ct.media
ct.is
ct.st
ct.com.pl
ct.guide
ct.no
ct.gov
ct.kg
ct.academy
ct.gl
ct.ms
ct.net
ct.uy
ct.by
ct.sg
ct.dk
ct.cz
ct.limo
ct.lt
ct.co.cr
ct.net.cn
ct.chat
ct.works
ct.events
ct.gen.tr
ct.co.uk
ct.co.kr
ct.edu
ct.kz
ct.nl
ct.tv
ct.cn
ct.financial
ct.eu
ct.org.br
ct.me
ct.de
ct.ru
ct.si
ct.biz
ct.su
ct.properties
ct.hk
ct.fi
ct.wtf
ct.coop
ct.dynalias.net
ct.tr
ct.services
ct.dnsalias.org
ct.vin
ct.ma
ct.pl
ct.app
ct.krakow.pl
ct.fm
ct.ag
ct.co
ct.fj.cn
ct.googleapis.com
ct.net.br
ct.mine.nu
ct.cc
ct.getmyip.com
ct.engineering
ct.org.tw
ct.gold
ct.ac.th
ct.tel
ct.to
ct.lv
ct.ca
ct.id.au
ct.uk

DNS History

7 records (4 active, 3 former)

2017201820192020202120222023202420252026A104.21.15.62172.67.161.1932606:4700:3030::ac43:a1c12606:4700:3034::6815:f3e149.126.74.215CNAME7ihbr.x.incapdns.netwww.csidn.com
●A104.21.15.622026-02-16 → 2026-04-26 · 3 obs
○ 2016-12-28 20:17:30
● 2026-02-16 00:04:02
● 2026-04-26 18:25:48
○A149.126.74.2152016-12-28 → 2016-12-28 · 3 obs
● 2016-12-28 20:17:30
○ 2026-02-16 00:04:02
○ 2026-04-26 18:25:48
●A172.67.161.1932026-02-16 → 2026-04-26 · 3 obs
○ 2016-12-28 20:17:30
● 2026-02-16 00:04:02
● 2026-04-26 18:25:48
●A2606:4700:3030::ac43:a1c12026-02-16 → 2026-04-26 · 3 obs
○ 2016-12-28 20:17:30
● 2026-02-16 00:04:02
● 2026-04-26 18:25:48
●A2606:4700:3034::6815:f3e2026-02-16 → 2026-04-26 · 3 obs
○ 2016-12-28 20:17:30
● 2026-02-16 00:04:02
● 2026-04-26 18:25:48
○CNAME7ihbr.x.incapdns.net2016-12-28 → 2026-02-16 · 4 obs
● 2016-12-28 20:17:30
● 2026-02-16 11:46:24
○ 2026-02-19 07:16:18
○ 2026-04-26 18:25:48
○CNAMEwww.csidn.com2016-12-28 → 2026-02-16 · 4 obs
● 2016-12-28 20:17:30
● 2026-02-16 11:46:24
○ 2026-02-19 07:16:18
○ 2026-04-26 18:25:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, e.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...-
csidn.comgreg.ns.cloudflare.com, jill.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.115

NS records: greg.ns.cloudflare.com, jill.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csidn.com (unsigned zone)

⏱️ Timing

Total: 427ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.161.193, 104.21.15.62
AAAA22606:4700:3030::ac43:a1c1, 2606:4700:3034::6815:f3e
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

tc.csidn.com points to four IP numbers: 2606:4700:3030::ac43:a1c1, 2606:4700:3034::6815:f3e, 104.21.15.62 and 172.67.161.193.

Other host names, for instance btemodels.com, nueranashville.com, www.distinctivediamondsinc.com, eboyer.com and translatetohindi.net share IP numbers with tc.csidn.com.