`u-pc.tech`

DNSSEC	⚠️ Not signed
NS	`dns27.hichina.com` ⭐
		A	2408:4009:501::35^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns28.hichina.com`
		A	2408:4009:501::36^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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,}
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`verification-code-site-App_feishu=Ass8Dj2bqdJtH790yGn2`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`atlassian-sending-domain-verification=35008c85-fac5-4ccb-b576-b5c44185251d`
SOA	`dns27.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`tech`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1774563548

Same first word

u-pc.com

u-pc.de

u-pc.com.cn

u-pc.tech

Similar names

c-pu.com

cp-u.com

pc-u.net

c-up.co.jp

c-up.com

c-pu.ru

c-up.co.il

cp-u.net

c-up.me

pc-u.com

up-c.ru

pc-u.de

DNS History

5 records (5 active, 0 former)

●NSdns27.hichina.com2026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 06:57:30
● 2026-03-26 22:35:26

●NSdns28.hichina.com2026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 06:57:30
● 2026-03-26 22:35:26

●MXmx1.feishu.cn2026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 06:57:30
● 2026-03-26 22:35:26

●MXmx2.feishu.cn2026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 06:57:30
● 2026-03-26 22:35:26

●MXmx3.feishu.cn2026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 06:57:30
● 2026-03-26 22:35:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info	8 records
u-pc.tech	dns27.hichina.com, dns28.hichina.com	-

✅ Authoritative Response

Server:47.118.199.199

NS records: dns27.hichina.com, dns28.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u-pc.tech (unsigned zone)

⏱️ Timing

Total: 1323ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns28.hichina.com, dns27.hichina.com`
MX	3	`mx2.feishu.cn (pri: 5), mx1.feishu.cn (pri: 1)...`
TXT	3	`v=spf1 +include:_netblocks.m.feishu.cn -, atlassian-sending-domain-verification=35...`
SOA	1	`dns27.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns01.trs-dns.net...)

Analysis

Name Servers

u-pc.tech is delegated to two name servers dns27.hichina.com and dns28.hichina.com.

u-pc.tech shares the same name server setup as other domains, for instance similantoys.com, rodress.com, jellow.club, yumin.tv and 9ucd.com.

u-pc.tech at least partially shares name servers with other domains, for instance gtelp.com, aboat.cn, lmedu.net and cjwgj.com.

These name servers are commonly used alongside expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers:

dns27.hichina.com points to: 2408:4009:501::35, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.

dns28.hichina.com points to: 2408:4009:501::36, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.

Mail Servers

u-pc.tech is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

u-pc.tech shares some mail servers with other domains, at least partially, for instance dex-robot.com, rongkey.com, vmeg.ai, ibee360.com and semidrive.com.