🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`devrelschool.com`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`bruce.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bruce.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bruce.ns.cloudflare.com`
		A	108.162.193.77^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	172.64.33.77^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
		A	173.245.59.77^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bruce.ns.cloudflare.com`
NS	`poppy.ns.cloudflare.com`
		A	2606:4700:50::a29f:2621^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c221^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`poppy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2221^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`poppy.ns.cloudflare.com`
		A	108.162.194.33^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	162.159.38.33^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
		A	172.64.34.33^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`poppy.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`ca3-70278373a97e4388800cc50281cf9d11`
TXT	`google-site-verification=Op3jSMhMZgUA-bm2lwCHgaf8Yj3CeeIlUTObkjIQeqQ`
SOA	`bruce.ns.cloudflare.com`dns@cloudflare.com serial=2412272176

`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=1791004769

Same first word

devrelschool.com

Previous names

Next names

DNS History

11 records (8 active, 3 former)

●NSbruce.ns.cloudflare.com2026-08-21 → 2026-10-03 · 3 obs

○ 2019-03-29 09:43:10
● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

○NSns55.domaincontrol.com2019-03-29 → 2019-03-29 · 3 obs

● 2019-03-29 09:43:10
○ 2026-08-21 13:29:20
○ 2026-10-03 05:28:44

○NSns56.domaincontrol.com2019-03-29 → 2019-03-29 · 3 obs

● 2019-03-29 09:43:10
○ 2026-08-21 13:29:20
○ 2026-10-03 05:28:44

●NSpoppy.ns.cloudflare.com2026-08-21 → 2026-10-03 · 3 obs

○ 2019-03-29 09:43:10
● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

●MXalt1.aspmx.l.google.com2026-08-21 → 2026-10-03 · 2 obs

● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

●MXalt2.aspmx.l.google.com2026-08-21 → 2026-10-03 · 2 obs

● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

●MXalt3.aspmx.l.google.com2026-08-21 → 2026-10-03 · 2 obs

● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

●MXalt4.aspmx.l.google.com2026-08-21 → 2026-10-03 · 2 obs

● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

●MXaspmx.l.google.com2026-08-21 → 2026-10-03 · 2 obs

● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

○A184.168.221.632019-03-29 → 2019-03-29 · 3 obs

● 2019-03-29 09:43:10
○ 2026-08-21 13:29:20
○ 2026-10-03 05:28:44

●A76.76.21.212026-08-21 → 2026-10-03 · 3 obs

○ 2019-03-29 09:43:10
● 2026-08-21 13:29:20
● 2026-10-03 05:28:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net...	-
devrelschool.com	bruce.ns.cloudflare.com, poppy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.77

NS records: bruce.ns.cloudflare.com, poppy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for devrelschool.com (unsigned zone)

⏱️ Timing

Total: 1115ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`bruce.ns.cloudflare.com, poppy.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`ca3-70278373a97e4388800cc50281cf9d11, google-site-verification=Op3jSMhMZgUA-bm`
SOA	1	`bruce.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

devrelschool.com directs to one IP number, which is 76.76.21.21.

Among the host names that share IP numbers with devrelschool.com are krnelstudio.com, www.jenor.com, dewdrops.ai and two others.

Name Servers

devrelschool.com uses two name servers for its delegation: bruce.ns.cloudflare.com and poppy.ns.cloudflare.com.

devrelschool.com has the same name server delegation as a number of other domains, such as zimerbau.de, prueba34-345.pages.dev, idselro18.workers.dev and two more.

There is at least partial name server overlap between devrelschool.com and other domains — lucillegonz14.workers.dev, www-luniversitario-it.pages.dev, morpave.gr and two more among them.

These name servers are routinely deployed together with the name servers kellen.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname bruce.ns.cloudflare.com directs to 108.162.193.77, 172.64.33.77 and 173.245.59.77 along with 3 other IP addresses.

Hostname poppy.ns.cloudflare.com directs to 108.162.194.33, 162.159.38.33 and 172.64.34.33 along with 3 other IP addresses.

Mail Servers

devrelschool.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

devrelschool.com shares at least some of its mail servers with other domains — for example 3-dfit.com, tuckerwetmore.com, talrink.com.au and two more.

It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 172.253.63.27 and 2607:f8b0:4004:c1d::1a.

alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1a.