`harborviewlearninghub.sbs`

DNSSEC	⚠️ Not signed
NS	`jakub.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c355^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jakub.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2355^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jakub.ns.cloudflare.com`
		A	108.162.195.85^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	162.159.44.85^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	172.64.35.85^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
NS	`melany.ns.cloudflare.com`
		A	2606:4700:50::a29f:268a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c28a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`melany.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:228a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`melany.ns.cloudflare.com`
		A	108.162.194.138^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	162.159.38.138^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	172.64.34.138^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
SOA	`jakub.ns.cloudflare.com`dns@cloudflare.com serial=2410388658

`sbs`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.nic.sbs`
	NS	`b.nic.sbs`
	NS	`c.nic.sbs`
	NS	`d.nic.sbs`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1785248709

Same first word

harborviewlearninghub.sbs

DNS History

2 records (2 active, 0 former)

●NSjakub.ns.cloudflare.com2026-02-28 → 2026-07-28 · 2 obs

● 2026-02-28 11:26:44
● 2026-07-28 14:52:00

●NSmelany.ns.cloudflare.com2026-02-28 → 2026-07-28 · 2 obs

● 2026-02-28 11:26:44
● 2026-07-28 14:52:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sbs	a.nic.sbs, b.nic.sbs, c.nic.sbs, d.nic.sbs	8 records
harborviewlearninghub.sbs	jakub.ns.cloudflare.com, melany.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.138

NS records: jakub.ns.cloudflare.com, melany.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for harborviewlearninghub.sbs (unsigned zone)

⏱️ Timing

Total: 301ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`jakub.ns.cloudflare.com, melany.ns.cloudflare.com`
SOA	1	`jakub.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (d.nic.sbs, c.nic.sbs, b.nic.sbs...)

Analysis

Name Servers

DNS delegation for harborviewlearninghub.sbs points to two name servers: jakub.ns.cloudflare.com and melany.ns.cloudflare.com.

The domains quickpavilionridge.pro, alfabet-esporte.com.br, audiobooksalive.com and peterpalms.com share a common name server delegation with harborviewlearninghub.sbs.

harborviewlearninghub.sbs has at least partial name server overlap with other domains, such as luzilanlawyer.com, aaplayadelcarmen.org, xenosinteractive.com and two others.

It is common to see these name servers used together with name servers hattie.ns.cloudflare.com and vin.ns.cloudflare.com.

Hosts with 6 IP addresses each:

jakub.ns.cloudflare.com has IP addresses 108.162.195.85, 162.159.44.85 and 172.64.35.85, plus 3 other.

melany.ns.cloudflare.com has IP addresses 108.162.194.138, 162.159.38.138 and 172.64.34.138, plus 3 other.

harborviewlearninghub.sbs - robtex.com