`tsfrlib.com`

DNSSEC	⚠️ Not signed
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns1.julydns.com` ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1774653292

Same first word

tsfrlib.com

Similar names

blfirst.com

lbfirst.com

brlifts.com

firstlb.com

bsflirt.de

rfblist.com

DNS History

14 records (4 active, 10 former)

○NSf1g1ns1.dnspod.net2015-08-07 → 2015-08-07 · 3 obs

● 2015-08-07 18:45:38
○ 2016-02-22 22:04:28
○ 2026-03-27 23:33:02

○NSf1g1ns2.dnspod.net2015-08-07 → 2015-08-07 · 3 obs

● 2015-08-07 18:45:38
○ 2016-02-22 22:04:28
○ 2026-03-27 23:33:02

○NSjuming.dnsdun.com2019-04-02 → 2019-04-02 · 4 obs

○ 2016-05-07 10:08:52
● 2019-04-02 13:29:16
○ 2026-03-05 18:16:36
○ 2026-03-27 23:33:02

○NSjuming.dnsdun.net2019-04-02 → 2019-04-02 · 4 obs

○ 2016-05-07 10:08:52
● 2019-04-02 13:29:16
○ 2026-03-05 18:16:36
○ 2026-03-27 23:33:02

○NSns1.51dns.com2016-02-22 → 2016-05-07 · 5 obs

○ 2015-08-07 18:45:38
● 2016-02-22 22:04:28
● 2016-05-07 10:08:52
○ 2019-04-02 13:29:16
○ 2026-03-27 23:33:02

●NSns1.judns.com2026-03-05 → 2026-03-27 · 3 obs

○ 2019-04-02 13:29:16
● 2026-03-05 18:16:36
● 2026-03-27 23:33:02

●NSns1.julydns.com2026-03-05 → 2026-03-27 · 3 obs

○ 2019-04-02 13:29:16
● 2026-03-05 18:16:36
● 2026-03-27 23:33:02

○NSns2.51dns.com2016-02-22 → 2016-05-07 · 5 obs

○ 2015-08-07 18:45:38
● 2016-02-22 22:04:28
● 2016-05-07 10:08:52
○ 2019-04-02 13:29:16
○ 2026-03-27 23:33:02

●NSns2.judns.com2026-03-05 → 2026-03-27 · 3 obs

○ 2019-04-02 13:29:16
● 2026-03-05 18:16:36
● 2026-03-27 23:33:02

●NSns2.julydns.com2026-03-05 → 2026-03-27 · 3 obs

○ 2019-04-02 13:29:16
● 2026-03-05 18:16:36
● 2026-03-27 23:33:02

○A103.214.166.2302019-04-02 → 2019-04-02 · 4 obs

○ 2016-05-07 10:08:52
● 2019-04-02 13:29:16
○ 2026-03-05 18:16:36
○ 2026-03-27 23:33:02

○A108.186.41.1442015-08-07 → 2015-08-07 · 3 obs

● 2015-08-07 18:45:38
○ 2015-11-23 19:39:24
○ 2026-03-27 23:33:02

○A23.107.153.2482016-02-22 → 2016-05-07 · 5 obs

○ 2015-11-23 19:39:24
● 2016-02-22 22:04:28
● 2016-05-07 10:08:52
○ 2019-04-02 13:29:16
○ 2026-03-27 23:33:02

○A67.23.229.2212015-11-23 → 2015-11-23 · 4 obs

○ 2015-08-07 18:45:38
● 2015-11-23 19:39:24
○ 2016-02-22 22:04:28
○ 2026-03-27 23:33:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tsfrlib.com	ns1.judns.com, ns2.judns.com	2 records

✅ Authoritative Response

Server:47.97.51.45

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tsfrlib.com (unsigned zone)

⏱️ Timing

Total: 430ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.julydns.com, ns2.julydns.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)

Analysis

Name Servers

tsfrlib.com is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

tsfrlib.com at least partially shares name servers with other domains such as fugongjixie.com, haobj-trans.com, wuyizhou.com, gshj.com and awu7.com.