bufferu.cn - dns.ninja

`bufferu.cn`

DNSSEC	⚠️ Not signed
A	140.210.20.74^{🇨🇳 CMNET-Jiangsu-AP140.210.20.0/24}
NS	`dns11.hichina.com` ⭐
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.122^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns12.hichina.com`
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.121^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
SOA	`dns11.hichina.com`hostmaster@hichina.com 2026-04-02 #17

`cn`

	DNSSEC	🔒 Signed (DS record present)
	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.cn`root@cnnic.cn serial=2034981134

Same first word

bufferu.cn

Similar names

buuffer.com

DNS History

8 records (3 active, 5 former)

●NSdns11.hichina.com2026-05-14 → 2026-06-29 · 3 obs

○ 2026-02-28 11:05:26
● 2026-05-14 09:56:56
● 2026-06-29 02:23:24

●NSdns12.hichina.com2026-05-14 → 2026-06-29 · 3 obs

○ 2026-02-28 11:05:26
● 2026-05-14 09:56:56
● 2026-06-29 02:23:24

○NSns1.judns.com2026-02-28 → 2026-02-28 · 3 obs

● 2026-02-28 11:05:26
○ 2026-05-14 09:56:56
○ 2026-06-29 02:23:24

○NSns1.julydns.com2026-02-28 → 2026-02-28 · 3 obs

● 2026-02-28 11:05:26
○ 2026-05-14 09:56:56
○ 2026-06-29 02:23:24

○NSns2.judns.com2026-02-28 → 2026-02-28 · 3 obs

● 2026-02-28 11:05:26
○ 2026-05-14 09:56:56
○ 2026-06-29 02:23:24

○NSns2.julydns.com2026-02-28 → 2026-02-28 · 3 obs

● 2026-02-28 11:05:26
○ 2026-05-14 09:56:56
○ 2026-06-29 02:23:24

○A118.31.118.1342026-02-28 → 2026-02-28 · 3 obs

● 2026-02-28 11:05:26
○ 2026-05-14 09:56:56
○ 2026-06-29 02:23:24

●A140.210.20.742026-05-14 → 2026-06-29 · 3 obs

○ 2026-02-28 11:05:26
● 2026-05-14 09:56:56
● 2026-06-29 02:23:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
bufferu.cn	dns11.hichina.com, dns12.hichina.com	-

✅ Authoritative Response

Server:139.224.142.111

NS records: dns11.hichina.com, dns12.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bufferu.cn (unsigned zone)

⏱️ Timing

Total: 1649ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`140.210.20.74`
NS	2	`dns12.hichina.com, dns11.hichina.com`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

bufferu.cn resolves to just one IP address, 140.210.20.74.

Name Servers

bufferu.cn is served by two delegated name servers, dns11.hichina.com and dns12.hichina.com.

bufferu.cn shares its NS records with other domains, for example ybgx.cn, bjgzyd.com, baoshunkang.com and two others.

bufferu.cn has at least partial name server overlap with other domains, such as qsxt.info, hksgc.cn, ltzc.net and two others.

It is common to find these name servers paired with the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

DNS names with 9 IP addresses:

dns11.hichina.com carries IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, with 6 other addresses beyond those.

dns12.hichina.com carries IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, with 6 other addresses beyond those.