`qrtb.cn`

	CNAME	`overdue.aliyun.com`
	DNSSEC	⚠️ Not signed
	A	170.33.12.185^{🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}

`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=2034670744

Previously NS for

qrtb.cn

Same first word

qrtb.cn

Similar names

trbq.cn

tbqr.com.cn

bqtr.com

rqbt.com

rbtq.ru

brtq.com

rbtq.cn

brqt.com

qbtr.me

brtq.com.cn

qbtr.cc

brqt.net

rqbt.us

brtq.cn

rbtq.com

qbtr.top

qtrb.cn

qrbt.com

btqr.cn

DNS History

5 records (3 active, 2 former)

●NSdns27.hichina.com2026-03-30 → 2026-04-14 · 3 obs

○ 2015-06-24 03:06:40
● 2026-03-30 19:24:06
● 2026-04-14 22:34:10

●NSdns28.hichina.com2026-03-30 → 2026-04-14 · 3 obs

○ 2015-06-24 03:06:40
● 2026-03-30 19:24:06
● 2026-04-14 22:34:10

○NSqrtb.cn2015-06-24 → 2015-06-24 · 3 obs

● 2015-06-24 03:06:40
○ 2026-03-30 19:24:06
○ 2026-04-14 22:34:10

○A98.126.171.2102015-06-24 → 2015-06-24 · 3 obs

● 2015-06-24 03:06:40
○ 2026-03-30 19:24:06
○ 2026-04-14 22:34:10

●CNAMEoverdue.aliyun.com2026-03-30 → 2026-04-14 · 2 obs

● 2026-03-30 19:24:06
● 2026-04-14 22:34:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
qrtb.cn	dns27.hichina.com, dns28.hichina.com	-

✅ Authoritative Response

Server:120.76.107.39

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for qrtb.cn (unsigned zone)

⏱️ Timing

Total: 1697ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns27.hichina.com, dns28.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns27.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

qrtb.cn resolves to one IP number: 170.33.12.185.

other host names including overdue.aliyun.com, fkcx.cn, hldm.cn, ahjq.cn and bpsp.cn share IP numbers with qrtb.cn.

qrtb.cn - robtex.com

qrtb.cn

cn