`515300.com`

	CNAME	`515300.isitecenter.cn`
	CNAME	`pro-cn.site.cdncenter.cn`
	DNSSEC	⚠️ Not signed

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784429257

Same first word

515300.com

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DNS History

6 records (3 active, 3 former)

○NS(root)2015-06-03 → 2017-09-20 · 4 obs

● 2015-06-03 17:19:22
● 2017-09-20 11:33:42
○ 2026-07-04 12:02:16
○ 2026-07-19 03:06:14

●NSdns15.hichina.com2026-07-04 → 2026-07-19 · 3 obs

○ 2017-09-20 11:33:42
● 2026-07-04 12:02:16
● 2026-07-19 03:06:14

●NSdns16.hichina.com2026-07-04 → 2026-07-19 · 3 obs

○ 2017-09-20 11:33:42
● 2026-07-04 12:02:16
● 2026-07-19 03:06:14

○A121.12.92.722017-09-20 → 2017-09-20 · 4 obs

○ 2016-09-21 22:00:52
● 2017-09-20 11:33:42
○ 2026-07-04 12:02:16
○ 2026-07-19 03:06:14

○A210.83.80.242015-06-03 → 2016-09-21 · 4 obs

● 2015-06-03 17:19:22
● 2016-09-21 22:00:52
○ 2017-09-20 11:33:42
○ 2026-07-19 03:06:14

●CNAME515300.isitecenter.cn2026-07-04 → 2026-07-19 · 2 obs

● 2026-07-04 12:02:16
● 2026-07-19 03:06:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net...	-
515300.com	dns15.hichina.com, dns16.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.42

NS records: dns15.hichina.com, dns16.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 515300.com (unsigned zone)

⏱️ Timing

Total: 502ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns16.hichina.com, dns15.hichina.com`
CNAME	1	`515300.isitecenter.cn`
SOA	1	`dns15.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns15.hichina.com, dns15.hichina.com, dns15.hichina.com...)

515300.com - robtex.com

515300.com

com