`schoolofstartups.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2246^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:9bc7^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.34.70^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.199^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carioca.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2614^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c214^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carioca.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2214^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carioca.ns.cloudflare.com`
		A	108.162.194.20^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	162.159.38.20^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	172.64.34.20^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
NS	`jobs.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jobs.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jobs.ns.cloudflare.com`
		A	108.162.193.183^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	172.64.33.183^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	173.245.59.183^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.34.70, 172.67.155.199
		IPv6 hints	2606:4700:3031::6815:2246, 2606:4700:3033::ac43:9bc7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=251, name=cloudflare-ech.com
SOA	`carioca.ns.cloudflare.com`dns@cloudflare.com serial=2402981986

`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=1778307071

Same first word

schoolofstartups.com

schoolofstartups.live

DNS History

13 records (6 active, 7 former)

●NScarioca.ns.cloudflare.com2026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

●NSjobs.ns.cloudflare.com2026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

○NSns1.dynadot.com2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 03:30:04
○ 2016-11-29 12:28:42
○ 2026-05-09 06:31:26

○NSns1.parkingcrew.net2016-11-29 → 2017-09-07 · 5 obs

○ 2015-08-10 03:30:04
● 2016-11-29 12:28:42
● 2017-09-07 05:03:20
○ 2026-02-15 08:14:52
○ 2026-05-09 06:31:26

○NSns2.dynadot.com2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 03:30:04
○ 2016-11-29 12:28:42
○ 2026-05-09 06:31:26

○NSns2.parkingcrew.net2016-11-29 → 2017-09-07 · 5 obs

○ 2015-08-10 03:30:04
● 2016-11-29 12:28:42
● 2017-09-07 05:03:20
○ 2026-02-15 08:14:52
○ 2026-05-09 06:31:26

○MXmail.h-email.net2016-11-29 → 2026-02-16 · 4 obs

● 2016-11-29 12:28:42
● 2026-02-16 16:52:58
○ 2026-03-26 06:24:32
○ 2026-05-09 06:31:26

●A104.21.34.702026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

●A172.67.155.1992026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

○A185.53.178.82016-11-29 → 2017-09-07 · 5 obs

○ 2015-08-10 03:30:04
● 2016-11-29 12:28:42
● 2017-09-07 05:03:20
○ 2026-02-15 08:14:52
○ 2026-05-09 06:31:26

●A2606:4700:3031::6815:22462026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

●A2606:4700:3033::ac43:9bc72026-02-15 → 2026-05-09 · 3 obs

○ 2017-09-07 05:03:20
● 2026-02-15 08:14:52
● 2026-05-09 06:31:26

○A52.0.217.442015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 03:30:04
○ 2016-11-29 12:28:42
○ 2026-05-09 06:31:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net...	-
schoolofstartups.com	jobs.ns.cloudflare.com, carioca.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.20

NS records: jobs.ns.cloudflare.com, carioca.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schoolofstartups.com (unsigned zone)

⏱️ Timing

Total: 133ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.155.199, 104.21.34.70`
AAAA	2	`2606:4700:3033::ac43:9bc7, 2606:4700:3031::6815:2246`
NS	2	`carioca.ns.cloudflare.com, jobs.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carioca.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (jobs.ns.cloudflare.com, jobs.ns.cloudflare.com, jobs.ns.cloudflare.com...)

Analysis

IP Addresses

schoolofstartups.com maps to four IP numbers: 2606:4700:3031::6815:2246, 2606:4700:3033::ac43:9bc7, 104.21.34.70 and 172.67.155.199.

Other host names, for instance avcoid.com, gvajobs.be, www.icfisvenkolnd.online, tabletkinaenergie.pl and mail.grandcountry.com share IP numbers with schoolofstartups.com.

Name Servers

Two name servers carioca.ns.cloudflare.com and jobs.ns.cloudflare.com are delegated to schoolofstartups.com.

schoolofstartups.com uses the same name server configuration as other domains, such as claimsmadesimple.co.uk, passly.co, bryxo.dev, taxcalculators.info and shoppingly.pk.

schoolofstartups.com at least partially shares name servers with other domains such as silvervippoint.com, herebegnomes.com, bithonor.com, f56.com.br and collectiondx.com.

these name servers are commonly used with the name servers kolton.ns.cloudflare.com.

Host names with six IP numbers: Host name carioca.ns.cloudflare.com points to 2606:4700:50::a29f:2614, 2803:f800:50::6ca2:c214, 2a06:98c1:50::ac40:2214, 108.162.194.20, 162.159.38.20 and 172.64.34.20; host name jobs.ns.cloudflare.com points to 2606:4700:58::adf5:3bb7, 2803:f800:50::6ca2:c1b7, 2a06:98c1:50::ac40:21b7, 108.162.193.183, 172.64.33.183 and 173.245.59.183.

schoolofstartups.com - robtex.com