`buildresource.sbs`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:f7d^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a29d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.125^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.157^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leah.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c081^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2081^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leah.ns.cloudflare.com`
		A	108.162.192.129^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	172.64.32.129^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	173.245.58.129^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
NS	`sri.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sri.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sri.ns.cloudflare.com`
		A	108.162.193.234^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	172.64.33.234^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	173.245.59.234^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.15.125, 172.67.162.157
		IPv6 hints	2606:4700:3032::6815:f7d, 2606:4700:3035::ac43:a29d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=6, name=cloudflare-ech.com
SOA	`leah.ns.cloudflare.com`dns@cloudflare.com serial=2399081405

`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=1775274227

⚠️ On DNS blocklist: tif

Same first word

buildresource.sbs

buildresource.com

Similar names

coursebuilder.withgoogle.com

coursebuilder.nl

coursebuilder.com

coeurbuilders.com

coursebuilder.com.au

coursebuilder.de

ucorebuilders.com

DNS History

6 records (6 active, 0 former)

●NSleah.ns.cloudflare.com2026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

●NSsri.ns.cloudflare.com2026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

●A104.21.15.1252026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

●A172.67.162.1572026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

●A2606:4700:3032::6815:f7d2026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

●A2606:4700:3035::ac43:a29d2026-03-19 → 2026-04-04 · 2 obs

● 2026-03-19 09:35:08
● 2026-04-04 04:20:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sbs	a.nic.sbs, b.nic.sbs, c.nic.sbs, d.nic.sbs	8 records
buildresource.sbs	sri.ns.cloudflare.com, leah.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.234

NS records: sri.ns.cloudflare.com, leah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for buildresource.sbs (unsigned zone)

⏱️ Timing

Total: 433ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.162.157, 104.21.15.125`
AAAA	2	`2606:4700:3032::6815:f7d, 2606:4700:3035::ac43:a29d`
NS	2	`leah.ns.cloudflare.com, sri.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leah.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 8

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

Analysis

IP Addresses

buildresource.sbs maps to four IP numbers: 2606:4700:3032::6815:f7d, 2606:4700:3035::ac43:a29d, 104.21.15.125 and 172.67.162.157.

Other host names, for instance yg.plantuer.com, vhnwh.cn, phim(0x736578)2022.org, fotovoltaika.gr and ekser.net share IP numbers with buildresource.sbs.

Name Servers

Two name servers leah.ns.cloudflare.com and sri.ns.cloudflare.com are delegated to buildresource.sbs.

buildresource.sbs uses the same name server configuration as other domains, such as stlx.net, justcolor.net, bangkokblack.com, graniteocean.site and proscenni.sbs.

buildresource.sbs at least partially shares name servers with other domains such as bestalternativesites.com, chenpan.xyz, heb.eng.br, vintagedancer.com and biblicalintegrity.org.

These name servers are commonly used alongside mark.ns.cloudflare.com, liz.ns.cloudflare.com and paige.ns.cloudflare.com.

Host names with six IP numbers: Host name leah.ns.cloudflare.com points to 2606:4700:50::adf5:3a81, 2803:f800:50::6ca2:c081, 2a06:98c1:50::ac40:2081, 108.162.192.129, 172.64.32.129 and 173.245.58.129; host name sri.ns.cloudflare.com points to 2606:4700:58::adf5:3bea, 2803:f800:50::6ca2:c1ea, 2a06:98c1:50::ac40:21ea, 108.162.193.234, 172.64.33.234 and 173.245.59.234.

buildresource.sbs - robtex.com