dfopen.com - dns.ninja

`dfopen.com`

DNSSEC	⚠️ Not signed
NS	`ns1.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	`ns1.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}
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=1784292482

Same first word

dfopen.com

dfopen.cn

Similar names

fpendo.com

fepdon.com

pdfone.net

openfd.de

opendf.com

pdfone.com

dopfen.com

defnop.com

fondep.com

onepdf.com

onepdf.ru

opendf.com.br

fdopen.github.io

fpnode.com

onepdf.cn

openfd.org

fondep.ma

onepdf.net

opendf.net

openfd.com

fdopen.net

onepdf.org

neopdf.com

fednop.com

fondep.gob.pe

defnop.ru

fepdon.cn

DNS History

11 records (4 active, 7 former)

○NSmain1.ns365.net2015-07-15 → 2017-03-28 · 4 obs

● 2015-07-15 13:42:00
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

●NSns1.judns.com2026-02-15 → 2026-07-17 · 3 obs

○ 2017-03-28 08:53:32
● 2026-02-15 11:27:16
● 2026-07-17 13:15:52

●NSns1.julydns.com2026-02-15 → 2026-07-17 · 3 obs

○ 2017-03-28 08:53:32
● 2026-02-15 11:27:16
● 2026-07-17 13:15:52

●NSns2.judns.com2026-02-15 → 2026-07-17 · 3 obs

○ 2017-03-28 08:53:32
● 2026-02-15 11:27:16
● 2026-07-17 13:15:52

●NSns2.julydns.com2026-02-15 → 2026-07-17 · 3 obs

○ 2017-03-28 08:53:32
● 2026-02-15 11:27:16
● 2026-07-17 13:15:52

○NSns3.gzidc.com2015-11-23 → 2017-03-28 · 5 obs

○ 2015-07-15 13:42:00
● 2015-11-23 13:57:58
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

○NSns3.ns365.net2015-11-23 → 2017-03-28 · 5 obs

○ 2015-07-15 13:42:00
● 2015-11-23 13:57:58
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

○NSns4.gzidc.com2015-11-23 → 2017-03-28 · 5 obs

○ 2015-07-15 13:42:00
● 2015-11-23 13:57:58
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

○NSns4.ns365.net2015-11-23 → 2017-03-28 · 5 obs

○ 2015-07-15 13:42:00
● 2015-11-23 13:57:58
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

○A103.41.65.1662026-02-15 → 2026-02-22 · 5 obs

○ 2017-03-28 08:53:32
● 2026-02-15 11:27:16
● 2026-02-22 06:42:40
○ 2026-03-17 18:27:34
○ 2026-07-17 13:15:52

○A124.173.80.2172015-07-15 → 2017-03-28 · 4 obs

● 2015-07-15 13:42:00
● 2017-03-28 08:53:32
○ 2026-02-15 11:27:16
○ 2026-07-17 13:15:52

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:162.159.27.251

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dfopen.com (unsigned zone)

⏱️ Timing

Total: 232ms | 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

The NS records for dfopen.com point to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

dfopen.com has at least partial name server overlap with other domains, such as alimoji.cn, shtlkj.com, bzfjb.com and two others.

It is common to see these name servers used together with name servers ns1.onclouddns.com and ns2.onclouddns.com.

ns1.judns.com resolves to 162.159.27.251, as does ns2.judns.com. ns1.julydns.com resolves to 162.159.48.223, as does ns2.julydns.com.

ns1.judns.com and ns2.judns.com are host names that each point to 162.159.27.251 IP addresses.

ns1.julydns.com and ns2.julydns.com are host names that each point to 162.159.48.223 IP addresses.