itbro.cn - robtex.com

itbro.cn

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:287d🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:97a7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.125Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.151.167🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmay.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a87🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmay.ns.cloudflare.com
A2803:f800:50::6ca2:c087🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmay.ns.cloudflare.com
A2a06:98c1:50::ac40:2087🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmay.ns.cloudflare.com
A108.162.192.135🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmay.ns.cloudflare.com
A172.64.32.135🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmay.ns.cloudflare.com
A173.245.58.135🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmay.ns.cloudflare.com
NSroan.ns.cloudflare.com
A2606:4700:58::adf5:3be2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroan.ns.cloudflare.com
A2803:f800:50::6ca2:c1e2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRroan.ns.cloudflare.com
A2a06:98c1:50::ac40:21e2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRroan.ns.cloudflare.com
A108.162.193.226🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroan.ns.cloudflare.com
A172.64.33.226🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroan.ns.cloudflare.com
A173.245.59.226🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.40.125, 172.67.151.167
IPv6 hints2606:4700:3032::6815:287d, 2606:4700:3036::ac43:97a7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=182, name=cloudflare-ech.com
SOAmay.ns.cloudflare.comdns@cloudflare.com serial=2409613595

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035108086

Same first word

itbro.cn
itbro.com

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DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSmay.ns.cloudflare.comroan.ns.cloudflare.comdns27.hichina.comdns28.hichina.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netA104.21.40.125172.67.151.1672606:4700:3032::6815:287d2606:4700:3036::ac43:97a7
○NSdns27.hichina.com2020-07-30 → 2021-01-07 · 5 obs
○ 2017-01-04 16:37:24
● 2020-07-30 07:59:00
● 2021-01-07 04:28:38
○ 2026-07-20 01:43:14
○ 2026-07-30 00:02:18
○NSdns28.hichina.com2020-07-30 → 2021-01-07 · 5 obs
○ 2017-01-04 16:37:24
● 2020-07-30 07:59:00
● 2021-01-07 04:28:38
○ 2026-07-20 01:43:14
○ 2026-07-30 00:02:18
○NSf1g1ns1.dnspod.net2015-08-08 → 2017-01-04 · 4 obs
● 2015-08-08 19:29:54
● 2017-01-04 16:37:24
○ 2020-07-30 07:59:00
○ 2026-07-30 00:02:18
○NSf1g1ns2.dnspod.net2015-08-08 → 2017-01-04 · 4 obs
● 2015-08-08 19:29:54
● 2017-01-04 16:37:24
○ 2020-07-30 07:59:00
○ 2026-07-30 00:02:18
●NSmay.ns.cloudflare.com2026-07-20 → 2026-07-30 · 3 obs
○ 2021-01-07 04:28:38
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18
●NSroan.ns.cloudflare.com2026-07-20 → 2026-07-30 · 3 obs
○ 2021-01-07 04:28:38
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18
●A104.21.40.1252026-07-20 → 2026-07-30 · 2 obs
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18
●A172.67.151.1672026-07-20 → 2026-07-30 · 2 obs
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18
●A2606:4700:3032::6815:287d2026-07-20 → 2026-07-30 · 2 obs
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18
●A2606:4700:3036::ac43:97a72026-07-20 → 2026-07-30 · 2 obs
● 2026-07-20 01:43:14
● 2026-07-30 00:02:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnb.dns.cn, a.dns.cn, d.dns.cn, e.dns.cn...-
itbro.cnmay.ns.cloudflare.com, roan.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.135

NS records: may.ns.cloudflare.com, roan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itbro.cn (unsigned zone)

⏱️ Timing

Total: 489ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.40.125, 172.67.151.167
AAAA22606:4700:3036::ac43:97a7, 2606:4700:3032::6815:287d
NS2may.ns.cloudflare.com, roan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1may.ns.cloudflare.com dns.cloudflare.com

Analysis

IP Addresses

itbro.cn has four IP addresses: 104.21.40.125, 172.67.151.167, 2606:4700:3032::6815:287d and 2606:4700:3036::ac43:97a7.

Two other host names, along with cloud.trnog.org, oscard.online and www.atomic14.com, also share IP numbers with itbro.cn.

Name Servers

itbro.cn has two authoritative name servers — may.ns.cloudflare.com and roan.ns.cloudflare.com.

itbro.cn shares its NS records with other domains, for example drnm.cn, jifengnongmu.com, 60565.cn and two others.

itbro.cn shares at least some of its name servers with other domains, including dhaynie.com, jsdyms.com, hnhtmx.com and two others.

These name servers are frequently seen alongside the name servers brad.ns.cloudflare.com.

DNS names with 6 IP addresses:

may.ns.cloudflare.com points to 108.162.192.135, 172.64.32.135, 173.245.58.135 and 3 other IP addresses.

roan.ns.cloudflare.com points to 108.162.193.226, 172.64.33.226, 173.245.59.226 and 3 other IP addresses.