`nextstackultra.sbs`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:29da^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:980a^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.41.218^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.152.10^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nile.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bd6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nile.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nile.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nile.ns.cloudflare.com`
		A	108.162.193.214^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nile.ns.cloudflare.com`
		A	172.64.33.214^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nile.ns.cloudflare.com`
		A	173.245.59.214^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nile.ns.cloudflare.com`
NS	`sue.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a91^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sue.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c091^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sue.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2091^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sue.ns.cloudflare.com`
		A	108.162.192.145^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sue.ns.cloudflare.com`
		A	172.64.32.145^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sue.ns.cloudflare.com`
		A	173.245.58.145^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sue.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.41.218, 172.67.152.10
		IPv6	2606:4700:3034::6815:29da, 2606:4700:3035::ac43:980a
SOA	`nile.ns.cloudflare.com`dns@cloudflare.com serial=2398648857

`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=1774985664

⚠️ On DNS blocklist: tif

Same first word

nextstackultra.sbs

DNS History

6 records (6 active, 0 former)

●NSnile.ns.cloudflare.com2026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

●NSsue.ns.cloudflare.com2026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

●A104.21.41.2182026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

●A172.67.152.102026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

●A2606:4700:3034::6815:29da2026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

●A2606:4700:3035::ac43:980a2026-03-28 → 2026-03-31 · 2 obs

● 2026-03-28 17:16:10
● 2026-03-31 19:38:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sbs	a.nic.sbs, b.nic.sbs, c.nic.sbs, d.nic.sbs	8 records
nextstackultra.sbs	nile.ns.cloudflare.com, sue.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.145

NS records: nile.ns.cloudflare.com, sue.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nextstackultra.sbs (unsigned zone)

⏱️ Timing

Total: 677ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.152.10, 104.21.41.218`
AAAA	2	`2606:4700:3035::ac43:980a, 2606:4700:3034::6815:29da`
NS	2	`nile.ns.cloudflare.com, sue.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nile.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

nextstackultra.sbs resolves to four IPs: 2606:4700:3034::6815:29da, 2606:4700:3035::ac43:980a, 104.21.41.218 and 172.67.152.10.

Other host names, for instance software-crm.co.uk, servicecenteres.com, manuzoid.nl, 4cy3xsigeq.yjnom8244.waiicailul.com and chewnchat.com share IP numbers with nextstackultra.sbs.

Name Servers

nextstackultra.sbs has two name servers: nile.ns.cloudflare.com and sue.ns.cloudflare.com.

nextstackultra.sbs shares the same name server setup as other domains, for example technosmartspace.buzz, gammafund.sbs, boyerudobonoperations.digital, websia.net and code101fus-ion.buzz.

nextstackultra.sbs shares some name servers with other domains, for example dealfill.com, the-price-engine.com, songspk24.info, asalta.com and cycleharmony.com.

These name servers are commonly used with the name servers sasha.ns.cloudflare.com.

Host names with six IP numbers: nile.ns.cloudflare.com points to: 2606:4700:58::adf5:3bd6, 2803:f800:50::6ca2:c1d6, 2a06:98c1:50::ac40:21d6, 108.162.193.214, 172.64.33.214 and 173.245.59.214; sue.ns.cloudflare.com points to: 2606:4700:50::adf5:3a91, 2803:f800:50::6ca2:c091, 2a06:98c1:50::ac40:2091, 108.162.192.145, 172.64.32.145 and 173.245.58.145.

nextstackultra.sbs - robtex.com