`bksuf.top`

DNSSEC

⚠️ Not signed

`top`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.zdnscloud.com` ⭐
	NS	`a.zdnscloud.cn`
	NS	`b.zdnscloud.cn`
	NS	`c.zdnscloud.com`
	NS	`d.zdnscloud.com`
	NS	`e.zdnscloud.cn`
	NS	`f.zdnscloud.cn`
	NS	`i.zdnscloud.cn`
	NS	`j.zdnscloud.com`
	TXT	`2026-08-04_23:10:02`
	SOA	`a.zdnscloud.com`td_dns_gtld@knet.cn serial=1396662201

⚠️ On DNS blocklist: spam-tlds

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DNS History

4 records (0 active, 4 former)

○NSns1.dns.com2016-09-12 → 2017-03-11 · 6 obs

● 2016-09-12 22:09:18
● 2016-12-08 19:57:38
○ 2017-01-13 21:44:34
● 2017-03-11 04:26:44
○ 2026-05-20 15:47:38
○ 2026-08-04 15:29:22

○NSns2.dns.com2016-09-12 → 2016-12-08 · 4 obs

● 2016-09-12 22:09:18
● 2016-12-08 19:57:38
○ 2017-01-13 21:44:34
○ 2026-08-04 15:29:22

○A69.197.186.2272017-01-06 → 2017-03-11 · 5 obs

○ 2016-12-17 02:16:52
● 2017-01-06 16:47:00
● 2017-03-11 04:26:44
○ 2026-05-20 15:47:38
○ 2026-08-04 15:29:22

○A74.91.26.432016-09-15 → 2016-12-17 · 4 obs

● 2016-09-15 21:32:36
● 2016-12-17 02:16:52
○ 2017-01-06 16:47:00
○ 2026-08-04 15:29:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
top	a.zdnscloud.cn, b.zdnscloud.cn, c.zdnscloud.com, d.zdnscloud.com...	9 records

✅ Authoritative Response

Server:2401:8d00:2::1

NS records: a.zdnscloud.cn, b.zdnscloud.cn, c.zdnscloud.com, d.zdnscloud.com, e.zdnscloud.cn, f.zdnscloud.cn, i.zdnscloud.cn, j.zdnscloud.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 305ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 9

Out-of-bailiwick: 9 (a.zdnscloud.cn, b.zdnscloud.cn, c.zdnscloud.com...)

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