ca.sina.com - robtex.com

ca.sina.com

DNSSEC⚠️ Not signed
NSns1.sina.com.cn ⭐
A221.179.193.14🇨🇳 CHINAMOBILE-CN221.179.192.0/22 CMI (Customer Route)
NSdarklighter.cw.sina.com ⚠️ Not in parent delegation
A10.1.1.23
NSindns.ca.sina.com ⚠️ Not in parent delegation
A172.16.1.10UNSPECIFIED160.0.0.0/3
NSindns1.sina.com ⚠️ Not in parent delegation
A172.16.1.10UNSPECIFIED160.0.0.0/3
NSindns2.sina.com ⚠️ Not in parent delegation
A10.1.1.20
NSindns3.sina.com ⚠️ Not in parent delegation
A10.1.1.23
MXexmail1.ca.sina.com ⭐
A172.16.1.12UNSPECIFIED160.0.0.0/3
MXexweb1.ca.sina.com(20)
A172.16.1.6UNSPECIFIED160.0.0.0/3
MXavon1.cw.sina.com(30)
A10.1.1.96
SOAns1.sina.com.cnzhihao@staff.sina.com.cn 2004-09-09 #1

sina.com

DNSSEC⚠️ Not signed
A64.71.151.11🇺🇸 HURRICANE64.71.128.0/18 Hurricane Electric 55 South Market St San Jose, CA
NSns1.sina.com.cn ⭐ ⚠️ Not in parent delegation
NSns1.sina.com
NSns2.sina.com
NSns2.sina.com.cn ⚠️ Not in parent delegation
NSns3.sina.com
NSns3.sina.com.cn ⚠️ Not in parent delegation
NSns4.sina.com
NSns4.sina.com.cn ⚠️ Not in parent delegation
MXfreemx1.sinamail.sina.com.cn ⭐
MXfreemx2.sinamail.sina.com.cn ⭐
MXfreemx3.sinamail.sina.com.cn ⭐
TXTv=spf1 include:spf.sinamail.sina.com.cn -all
SOAns1.sina.com.cnzhihao@staff.sina.com.cn 2005-04-26 #1
WOT: SAFE (86/100)
rank #5385 globally
rank #2668 in the tld
WOT: SAFE (86/100)
📈 Tranco rank: #5,482

Subdomains

exmail1.ca.sina.com
indns.ca.sina.com
exweb1.ca.sina.com

Same first word

ca.co
ca.uk
ca.digital
ca.net.co
ca.cl
ca.chat
ca.cm
ca.life
ca.ma
ca.new
ca.gouv.fr
ca.com.tr
ca.com.tw
ca.ac.za
ca.zone
ca.s3-website-us-west-1.amazonaws.com
ca.gov
ca.gy
ca.com.qa
ca.dk
ca.in-berlin.de
ca.gov.ar
ca.gov.mo
ca.pl
ca.cn
ca.builders
ca.go.ke
ca.ac.kr
ca.s3.ca-central-1.amazonaws.com
ca.s3-website-us-west-2.amazonaws.com
ca.k12.pa.us
ca.org.br
ca.esq
ca.se
ca.edu
ca.akamai.net
ca.today
ca.media
ca.condos
ca.pe
ca.gov.bm
ca.dev
ca.kz
ca.statebank
ca.nu
ca.sg
ca.gp
ca.ws
ca.com.se
ca.vu
ca.tv
ca.guru
ca.it.com
ca.akamaiedge.net
ca.exchange
ca.s3-website-us-east-1.amazonaws.com
ca.net
ca.gov.sa
ca.co.za
ca.gob.ar
ca.xyz
ca.s3-us-west-2.amazonaws.com
ca.by
ca.freetls.fastly.net
ca.surf
ca.ph
ca.s3-website.us-east-2.amazonaws.com
ca.nl
ca.pe.it
ca.abbott
ca.tc
ca.cd
ca.tf
ca.org
ca.edu.vn
ca.ac
ca.io
ca.uy
ca.cx
ca.cz
ca.world
ca.ru
ca.be
ca.no
ca.taxi
ca.de
ca.or.kr
ca.trafficmanager.net
ca.to
ca.mg.gov.br
ca.gov.vn
ca.debian.net
ca.uz
ca.eu.org
ca.gg
ca.com.sg
ca.land
ca.com.mx
ca.com
ca.com.au
ca.myshopify.com
ca.net.au
ca.co.th
ca.su
ca.tel
ca.support
ca.fyi
ca.ms
ca.hu
ca.pharmacy
ca.my
ca.inf.br
ca.cloudns.us
ca.ie
ca.lt
ca.com.lb
ca.bz.it
ca.fr
ca.ag
ca.sk
ca.global.prod.fastly.net
ca.company
ca.vodka
ca.gs
ca.s3-website.ca-central-1.amazonaws.com
ca
ca.la
ca.sh
ca.cc
ca.vin
ca.biz
ca.pt
ca.vc
ca.us.com
ca.com.br
ca.marketing
ca.s3.amazonaws.com

Similar names

ac.sc
ac.me
ac.co
ac.edu.au
ac.cy
ac.mz
ac.university
ac.com.pl
ac.kharkov.ua
ac.co.il
ac.mn
ac.in.ua
ac.edgekey.net
ac.company
ac.in
ac.gov.ru
ac.ma
ac.edu.vn
ac.kz
ac.mt
ac.com.py
ac.co.nz
ac.com.iq
ac.kr
ac.com.ro
ac.ls
ac.or.kr
ac.pl
ac.cl
ac.com.ua
ac.dev
ac.run
ac.bz
ac.s3-website-us-east-1.amazonaws.com
ac.co.in
ac.donetsk.ua
ac.cz
ac.am
ac.lk
ac.cm
ac.la
ac.ru
ac.life
ac.gd
ac.repair
ac.leg.br
ac.si
ac.ua
ac.msk.su
ac.vg
ac.s3-ap-northeast-1.amazonaws.com
ac.cr
ac.tn

DNS History

9 records (9 active, 0 former)

NSdarklighter.cw.sina.comindns.ca.sina.comindns1.sina.comindns2.sina.comindns3.sina.comns1.sina.com.cnMXavon1.cw.sina.comexmail1.ca.sina.comexweb1.ca.sina.com
●NSdarklighter.cw.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●NSindns.ca.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●NSindns1.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●NSindns2.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●NSindns3.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●NSns1.sina.com.cn2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●MXavon1.cw.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●MXexmail1.ca.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14
●MXexweb1.ca.sina.com2026-04-17 → 2026-08-13 · 2 obs
● 2026-04-17 05:14:52
● 2026-08-13 20:08:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net...-
sina.comns1.sina.com.cn, ns2.sina.com.cn, ns3.sina.com.cn, ns1.sina.com...4 records

✅ Authoritative Response

Server:114.134.80.137

NS records: ns1.sina.com.cn, ns2.sina.com.cn, ns3.sina.com.cn, ns1.sina.com, ns2.sina.com, ns4.sina.com, ns3.sina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sina.com (unsigned zone)

⏱️ Timing

Total: 1189ms | Queries: -

📄 Records

TypeCountSample Data
NS5darklighter.cw.sina.com, indns3.sina.com...
MX3avon1.cw.sina.com (pri: 30), exmail1.ca.sina.com (pri: 10)...
SOA1ns1.sina.com.cn zhihao.staff.sina.com.cn

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (ns1.sina.com, ns2.sina.com, ns4.sina.com...)

Analysis

Hierarchy

ca.sina.com sits above exmail1.ca.sina.com, indns.ca.sina.com and exweb1.ca.sina.com in the domain hierarchy.

Name Servers

The DNS delegation for ca.sina.com covers 6 name servers: indns1.sina.com, indns2.sina.com, indns3.sina.com and 3 more.

There is at least partial name server overlap between ca.sina.com and other domains — kandian.net, sinatown.com, sinanet.com and two more among them.

These name servers regularly appear alongside ns1.sina.com.cn, ns2.sina.com.cn, ns3.sina.com.cn and 7 other name servers in NS record sets.

Hosts with just one IP address:

indns1.sina.com points to the IP address 172.16.1.10.

indns2.sina.com points to the IP address 10.1.1.20.

indns3.sina.com points to the IP address 10.1.1.23.

ns1.sina.com.cn points to the IP address 221.179.193.14.

indns.ca.sina.com points to the IP address 172.16.1.10.

darklighter.cw.sina.com points to the IP address 10.1.1.23.

These two host names — indns1.sina.com and indns.ca.sina.com — each point to 172.16.1.10 IP addresses.

These two host names — indns3.sina.com and darklighter.cw.sina.com — each point to 10.1.1.23 IP addresses.

Mail Servers

Incoming mail for ca.sina.com is delivered via three mail servers: exmail1.ca.sina.com, exweb1.ca.sina.com and avon1.cw.sina.com.

ca.sina.com and other domains — exmail1.ca.sina.com for instance — share at least some mail servers.

Three hostnames, one IP address apiece: exmail1.ca.sina.com resolves to 172.16.1.12, exweb1.ca.sina.com resolves to 172.16.1.6 and avon1.cw.sina.com resolves to 10.1.1.96.