`buleancourse.com`

DNSSEC	⚠️ Not signed
A	146.148.231.108^{🇺🇸 HENGTONG-1146.148.192.0/18 GCHAO LLC}
NS	`a.share-dns.com` ⭐ ⚠️ Not in parent delegation
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b.share-dns.net` ⚠️ Not in parent delegation
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.gname-dns.com` ⚠️ Not in zone NS records
		A	172.64.52.212^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.gname-dns.com` ⚠️ Not in zone NS records
		A	172.64.53.55^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`a.share-dns.com`master@share-dns.com serial=1758693105

`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=1776203892

Same first word

buleancourse.com

Similar names

coursenebula.com

DNS History

16 records (5 active, 11 former)

●NSa.share-dns.com2026-03-02 → 2026-04-14 · 3 obs

○ 2019-03-10 22:42:30
● 2026-03-02 08:46:46
● 2026-04-14 22:17:42

●NSb.share-dns.net2026-03-02 → 2026-04-14 · 3 obs

○ 2019-03-10 22:42:30
● 2026-03-02 08:46:46
● 2026-04-14 22:17:42

●NSns1.gname-dns.com2026-03-02 → 2026-04-14 · 3 obs

○ 2019-03-10 22:42:30
● 2026-03-02 08:46:46
● 2026-04-14 22:17:42

○NSns1.p14.dynect.net2019-03-10 → 2019-03-10 · 4 obs

○ 2017-02-10 17:31:04
● 2019-03-10 22:42:30
○ 2026-03-02 08:46:46
○ 2026-04-14 22:17:42

●NSns2.gname-dns.com2026-03-02 → 2026-04-14 · 3 obs

○ 2019-03-10 22:42:30
● 2026-03-02 08:46:46
● 2026-04-14 22:17:42

○NSns2.p14.dynect.net2019-03-10 → 2019-03-10 · 4 obs

○ 2017-02-10 17:31:04
● 2019-03-10 22:42:30
○ 2026-03-02 08:46:46
○ 2026-04-14 22:17:42

○NSns3.p14.dynect.net2019-03-10 → 2019-03-10 · 4 obs

○ 2017-02-10 17:31:04
● 2019-03-10 22:42:30
○ 2026-03-02 08:46:46
○ 2026-04-14 22:17:42

○NSns4.p14.dynect.net2019-03-10 → 2019-03-10 · 4 obs

○ 2017-02-10 17:31:04
● 2019-03-10 22:42:30
○ 2026-03-02 08:46:46
○ 2026-04-14 22:17:42

○NSns97.worldnic.com2015-06-05 → 2017-02-10 · 4 obs

● 2015-06-05 02:01:44
● 2017-02-10 17:31:04
○ 2019-03-10 22:42:30
○ 2026-04-14 22:17:42

○NSns98.worldnic.com2015-06-05 → 2017-02-10 · 4 obs

● 2015-06-05 02:01:44
● 2017-02-10 17:31:04
○ 2019-03-10 22:42:30
○ 2026-04-14 22:17:42

○MXmail.vha.com2017-02-10 → 2017-02-10 · 4 obs

○ 2016-09-20 21:13:04
● 2017-02-10 17:31:04
○ 2019-03-10 22:42:30
○ 2026-04-14 22:17:42

○MXmail2.vha.com2017-02-10 → 2017-02-10 · 4 obs

○ 2016-09-20 21:13:04
● 2017-02-10 17:31:04
○ 2019-03-10 22:42:30
○ 2026-04-14 22:17:42

○MXmxa-0016ed01.gslb.pphosted.com2015-06-05 → 2016-09-20 · 4 obs

● 2015-06-05 02:01:44
● 2016-09-20 21:13:04
○ 2017-02-10 17:31:04
○ 2026-04-14 22:17:42

○MXmxb-0016ed01.gslb.pphosted.com2015-06-05 → 2016-09-20 · 4 obs

● 2015-06-05 02:01:44
● 2016-09-20 21:13:04
○ 2017-02-10 17:31:04
○ 2026-04-14 22:17:42

●A146.148.231.1082026-03-02 → 2026-04-14 · 3 obs

○ 2019-03-10 22:42:30
● 2026-03-02 08:46:46
● 2026-04-14 22:17:42

○A174.129.224.592015-06-05 → 2019-03-10 · 4 obs

● 2015-06-05 02:01:44
● 2019-03-10 22:42:30
○ 2026-03-02 08:46:46
○ 2026-04-14 22:17:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
buleancourse.com	ns1.gname-dns.com, ns2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.52.212

NS records: ns1.gname-dns.com, ns2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for buleancourse.com (unsigned zone)

⏱️ Timing

Total: 167ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`146.148.231.108`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

buleancourse.com points to a single IP address: 146.148.231.108.

Name Servers

buleancourse.com is delegated to four name servers: ns1.gname-dns.com, ns2.gname-dns.com, a.share-dns.com and b.share-dns.net.

buleancourse.com at least partially shares name servers with other domains, for example mk-online-official.com, dinghua188.com, edubesttone.com, zztyqh.com and yflog.com.

these name servers are commonly used with the following name servers: a12.share-dns.com, b12.share-dns.net, a2.share-dns.com, b2.share-dns.net, a11.share-dns.com, b11.share-dns.net, a5.share-dns.com, b5.share-dns.net, a7.share-dns.com and b7.share-dns.net.

Host names with one IP number:

ns1.gname-dns.com points to: 172.64.52.212

ns2.gname-dns.com points to: 172.64.53.55

a.share-dns.com points to: 172.64.53.25

b.share-dns.net points to: 172.64.52.239

buleancourse.com - robtex.com