b2b-web.cn - robtex.com
b2b-web.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:95aa🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:1dc0🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.29.192Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.149.170🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | brett.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b4c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c14c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:214c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| A | 108.162.193.76🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| A | 172.64.33.76🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| A | 173.245.59.76🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brett.ns.cloudflare.com | ||||||
| NS | faye.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26b4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2b4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22b4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| A | 108.162.194.180🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| A | 162.159.38.180Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| A | 172.64.34.180🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | faye.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.29.192, 172.67.149.170 | ||||||
| IPv6 | 2606:4700:3032::ac43:95aa, 2606:4700:3037::6815:1dc0 | ||||||
| SOA | brett.ns.cloudflare.comdns@cloudflare.com serial=2398891591 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034546407 | ||||||
Same first word
DNS History
9 records (6 active, 3 former)
●NSbrett.ns.cloudflare.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
●NSfaye.ns.cloudflare.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
○NSns3.dnsdun.com2020-03-18 → 2020-03-18 · 3 obs
○ 2026-03-24 03:49:20
○ 2026-03-24 03:49:22
○NSns3.dnsdun.net2020-03-18 → 2020-03-18 · 3 obs
○ 2026-03-24 03:49:20
○ 2026-03-24 03:49:22
●A104.21.29.1922026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
○A154.86.169.742020-03-18 → 2020-03-18 · 3 obs
○ 2026-03-24 03:49:20
○ 2026-03-24 03:49:22
●A172.67.149.1702026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
●A2606:4700:3032::ac43:95aa2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
●A2606:4700:3037::6815:1dc02026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 03:49:20
● 2026-03-24 03:49:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| b2b-web.cn | faye.ns.cloudflare.com, brett.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.180
NS records: faye.ns.cloudflare.com, brett.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b2b-web.cn (unsigned zone)
⏱️ Timing
Total: 1769ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.149.170, 104.21.29.192 |
| AAAA | 2 | 2606:4700:3037::6815:1dc0, 2606:4700:3032::ac43:95aa |
| NS | 2 | brett.ns.cloudflare.com, faye.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | brett.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
b2b-web.cn resolves to four IP numbers: 2606:4700:3032::ac43:95aa, 2606:4700:3037::6815:1dc0, 104.21.29.192 and 172.67.149.170.
other host names for instance chosenkin.com, humanservicesed.org, rapgol.com.br, sfrqzwx.com.cn and 79fc30e8.com share IP numbers with b2b-web.cn.
Name Servers
b2b-web.cn is delegated to two name servers: brett.ns.cloudflare.com and faye.ns.cloudflare.com.
b2b-web.cn shares the same name server setup as other domains, for example 89cao.cn, 265m.cn, m913.cn, oqre.cn and kaala.cn.
b2b-web.cn at least partially shares name servers with other domains, for instance smartapplocker.com, beritaenergi.id, hanultruyen.info, marketsphere.com and lemontorge.fr.
These name servers are commonly used with the name servers lisa.ns.cloudflare.com.
Host names with six IP numbers:
brett.ns.cloudflare.com points to: 2606:4700:58::adf5:3b4c, 2803:f800:50::6ca2:c14c, 2a06:98c1:50::ac40:214c, 108.162.193.76, 172.64.33.76 and 173.245.59.76; faye.ns.cloudflare.com points to: 2606:4700:50::a29f:26b4, 2803:f800:50::6ca2:c2b4, 2a06:98c1:50::ac40:22b4, 108.162.194.180, 162.159.38.180 and 172.64.34.180.