`algorithm.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=2034705505

Same first word

Similar names

DNS History

7 records (3 active, 4 former)

○NSdns10.hichina.com2016-07-21 → 2020-01-17 · 4 obs

● 2016-07-21 21:27:06
● 2020-01-17 19:44:56
○ 2026-04-05 10:40:28
○ 2026-04-24 04:54:08

●NSdns17.hichina.com2026-04-05 → 2026-04-24 · 3 obs

○ 2020-01-17 19:44:56
● 2026-04-05 10:40:28
● 2026-04-24 04:54:08

●NSdns18.hichina.com2026-04-05 → 2026-04-24 · 3 obs

○ 2020-01-17 19:44:56
● 2026-04-05 10:40:28
● 2026-04-24 04:54:08

○NSdns9.hichina.com2016-07-21 → 2020-01-17 · 4 obs

● 2016-07-21 21:27:06
● 2020-01-17 19:44:56
○ 2026-04-05 10:40:28
○ 2026-04-24 04:54:08

○A113.10.190.1372015-06-14 → 2016-04-30 · 4 obs

● 2015-06-14 09:43:46
● 2016-04-30 18:10:34
○ 2016-07-21 21:27:06
○ 2026-04-24 04:54:08

○A47.90.1.1072016-07-21 → 2017-03-23 · 5 obs

○ 2016-04-30 18:10:34
● 2016-07-21 21:27:06
● 2017-03-23 04:37:48
○ 2020-01-17 19:44:56
○ 2026-04-24 04:54:08

●CNAMEoverdue.aliyun.com2020-01-17 → 2026-04-24 · 2 obs

● 2020-01-17 19:44:56
● 2026-04-24 04:54:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
algorithm.cn	dns17.hichina.com, dns18.hichina.com	-

✅ Authoritative Response

Server:120.76.107.40

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for algorithm.cn (unsigned zone)

⏱️ Timing

Total: 2292ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns18.hichina.com, dns17.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

algorithm.cn resolves to a single IP address: 170.33.12.185.

Other host names including topoac.com, qgms.cn, fgrj.cn, tdjm.cn and wwnx.cn share IP numbers with algorithm.cn.

algorithm.cn - robtex.com

algorithm.cn

cn