`developercertificate.net`

DNSSEC	⚠️ Not signed
A	54.192.100.20^{🇺🇸 Amazon54.192.100.0/22 CF}
		PTR	`server-54-192-100-20.mci50.r.cloudfront.net`
A	54.192.100.67^{🇺🇸 Amazon54.192.100.0/22 CF}
A	54.192.100.69^{🇺🇸 Amazon54.192.100.0/22 CF}
A	54.192.100.113^{🇺🇸 Amazon54.192.100.0/22 CF}
NS	`ns1.dnsimple.com` ⭐
		A	2400:cb00:2049:1::a29f:1804^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns1.dnsimple.com`
		A	162.159.24.4^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.dnsimple.com`
NS	`ns2.dnsimple-edge.net`
		A	2620:111:8005::53^{🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route}
		A	199.247.153.53^{🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route}
			PTR	`ip-199-247-153-53.defastlink.net`
NS	`ns3.dnsimple.com`
		A	2400:cb00:2049:1::a29f:1a04^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns3.dnsimple.com`
		A	162.159.26.4^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.dnsimple.com`
NS	`ns4.dnsimple-edge.org`
		A	2620:111:8007::53^{🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route}
		A	199.247.155.53^{🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route}
			PTR	`ip-199-247-155-53.defastlink.net`
MX	`mx1.forwardemail.net` ⭐ 🔒
		A	2604:a880:2:d0::306:1^{🇺🇸 DIGITALOCEAN2604:a880:2::/48 DigitalOcean}
			PTR	`mx1.forwardemail.net`
		A	2a02:6ea0:d71e::2^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx1.forwardemail.net`
		A	121.127.44.56^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx1.forwardemail.net`
		A	138.197.213.185^{🇺🇸 DIGITALOCEAN138.197.208.0/20 DigitalOcean}
			PTR	`mx1.forwardemail.net`
MX	`mx2.forwardemail.net` ⭐ 🔒
		A	2604:a880:400:d1::cd:9001^{🇺🇸 DIGITALOCEAN2604:a880:400::/48 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	2a02:6ea0:d71e::1^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx2.forwardemail.net`
		A	104.248.224.170^{🇺🇸 DIGITALOCEAN104.248.224.0/20 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	121.127.44.59^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx2.forwardemail.net`
TXT	`ALIAS for d1cca1nyhhr83r.cloudfront.net`
TXT	`forward-email-site-verification=oXR6BI9aDY`
SOA	`ns1.dnsimple.com`admin@dnsimple.com serial=1557508315

`net`

	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=1771291465

Up

www.developercertificate.net

Same first word

developercertificate.net

developercertificate.com

developercertificate.org

DNS History

39 records (10 active, 29 former)

○NSdns1.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○NSdns2.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

●NSns1.dnsimple.com2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

○NSns1.linux-foundation.org2015-07-03 → 2016-04-27 · 4 obs

● 2015-07-03 00:28:58
● 2016-04-27 19:18:20
○ 2016-12-30 08:50:12
○ 2026-02-26 09:32:18

●NSns2.dnsimple-edge.net2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

○NSns2.linux-foundation.org2015-07-03 → 2016-04-27 · 4 obs

● 2015-07-03 00:28:58
● 2016-04-27 19:18:20
○ 2016-12-30 08:50:12
○ 2026-02-26 09:32:18

●NSns3.dnsimple.com2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

●NSns4.dnsimple-edge.org2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

○MXeforward1.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○MXeforward2.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○MXeforward3.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○MXeforward4.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○MXeforward5.registrar-servers.com2016-12-30 → 2017-12-26 · 5 obs

○ 2016-04-27 19:18:20
● 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

●MXmx1.forwardemail.net2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

●MXmx2.forwardemail.net2026-02-18 → 2026-02-26 · 3 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
● 2026-02-26 09:32:18

○MXsmtp1.linuxfoundation.org2015-07-03 → 2016-04-27 · 4 obs

● 2015-07-03 00:28:58
● 2016-04-27 19:18:20
○ 2016-12-30 08:50:12
○ 2026-02-26 09:32:18

○MXsmtp2.linuxfoundation.org2015-07-03 → 2016-04-27 · 4 obs

● 2015-07-03 00:28:58
● 2016-04-27 19:18:20
○ 2016-12-30 08:50:12
○ 2026-02-26 09:32:18

○A13.35.78.1172026-02-18 → 2026-02-23 · 9 obs

○ 2017-12-26 02:35:22
● 2026-02-18 02:05:10
○ 2026-02-22 11:51:22
○ 2026-02-22 16:48:56
● 2026-02-22 23:48:24
○ 2026-02-23 10:48:00
● 2026-02-23 22:14:46
○ 2026-02-24 12:59:12
○ 2026-02-26 09:32:18

○A13.35.78.292026-02-18 → 2026-02-23 · 9 obs

○A13.35.78.612026-02-18 → 2026-02-23 · 9 obs

○A13.35.78.952026-02-18 → 2026-02-23 · 9 obs

○A140.211.169.42015-07-03 → 2016-12-30 · 4 obs

● 2015-07-03 00:28:58
● 2016-12-30 08:50:12
○ 2017-12-26 02:35:22
○ 2026-02-26 09:32:18

○A162.255.119.2002017-12-26 → 2017-12-26 · 4 obs

○ 2016-12-30 08:50:12
● 2017-12-26 02:35:22
○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○A18.155.202.1072026-02-18 → 2026-02-26 · 2 obs

○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○A18.155.202.252026-02-18 → 2026-02-26 · 2 obs

○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○A18.155.202.422026-02-18 → 2026-02-26 · 2 obs

○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○A18.155.202.442026-02-18 → 2026-02-26 · 2 obs

○ 2026-02-18 02:05:10
○ 2026-02-26 09:32:18

○A18.239.18.42026-02-22 → 2026-02-25 · 8 obs

○ 2026-02-18 02:05:10
● 2026-02-22 11:51:22
○ 2026-02-22 12:44:02
○ 2026-02-24 12:59:12
● 2026-02-24 20:50:54
● 2026-02-25 12:31:32
○ 2026-02-25 16:01:12
○ 2026-02-26 09:32:18

○A18.239.18.492026-02-22 → 2026-02-25 · 8 obs

○ 2026-02-18 02:05:10
● 2026-02-22 11:51:22
○ 2026-02-22 12:44:02
○ 2026-02-24 12:59:12
● 2026-02-24 20:50:54
● 2026-02-25 12:31:32
○ 2026-02-25 16:01:12
○ 2026-02-26 09:32:18

○A18.239.18.62026-02-22 → 2026-02-25 · 8 obs

○ 2026-02-18 02:05:10
● 2026-02-22 11:51:22
○ 2026-02-22 12:44:02
○ 2026-02-24 12:59:12
● 2026-02-24 20:50:54
● 2026-02-25 12:31:32
○ 2026-02-25 16:01:12
○ 2026-02-26 09:32:18

○A18.239.18.732026-02-22 → 2026-02-25 · 8 obs

○ 2026-02-18 02:05:10
● 2026-02-22 11:51:22
○ 2026-02-22 12:44:02
○ 2026-02-24 12:59:12
● 2026-02-24 20:50:54
● 2026-02-25 12:31:32
○ 2026-02-25 16:01:12
○ 2026-02-26 09:32:18

○A3.171.100.1092026-02-25 → 2026-02-26 · 6 obs

○ 2026-02-25 12:31:32
● 2026-02-25 16:01:12
○ 2026-02-26 02:15:26
● 2026-02-26 02:54:42
○ 2026-02-26 06:08:36
○ 2026-02-26 09:32:18

○A3.171.100.1282026-02-25 → 2026-02-26 · 6 obs

○ 2026-02-25 12:31:32
● 2026-02-25 16:01:12
○ 2026-02-26 02:15:26
● 2026-02-26 02:54:42
○ 2026-02-26 06:08:36
○ 2026-02-26 09:32:18

○A3.171.100.552026-02-25 → 2026-02-26 · 6 obs

○ 2026-02-25 12:31:32
● 2026-02-25 16:01:12
○ 2026-02-26 02:15:26
● 2026-02-26 02:54:42
○ 2026-02-26 06:08:36
○ 2026-02-26 09:32:18

○A3.171.100.812026-02-25 → 2026-02-26 · 6 obs

○ 2026-02-25 12:31:32
● 2026-02-25 16:01:12
○ 2026-02-26 02:15:26
● 2026-02-26 02:54:42
○ 2026-02-26 06:08:36
○ 2026-02-26 09:32:18

●A54.192.100.1132026-02-22 → 2026-02-26 · 13 obs

○ 2026-02-22 11:51:22
● 2026-02-22 12:44:02
● 2026-02-22 16:48:56
○ 2026-02-22 23:48:24
● 2026-02-23 10:48:00
○ 2026-02-23 22:14:46
● 2026-02-24 12:59:12
○ 2026-02-24 20:50:54
○ 2026-02-25 16:01:12
● 2026-02-26 02:15:26
○ 2026-02-26 02:54:42
● 2026-02-26 06:08:36
● 2026-02-26 09:32:18

●A54.192.100.202026-02-22 → 2026-02-26 · 13 obs

●A54.192.100.672026-02-22 → 2026-02-26 · 13 obs

●A54.192.100.692026-02-22 → 2026-02-26 · 13 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	b.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net...	-
developercertificate.net	ns1.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple-edge.org, ns2.dnsimple-edge.net	2 records

✅ Authoritative Response

Server: 199.247.153.53

NS records: ns1.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple-edge.org, ns2.dnsimple-edge.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for developercertificate.net (unsigned zone)

⏱️ Timing

Total: 635ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.100.55, 3.171.100.81...`
NS	4	`ns1.dnsimple.com, ns2.dnsimple-edge.net...`
MX	2	`mx1.forwardemail.net (pri: 10), mx2.forwardemail.net (pri: 10)`
TXT	2	`ALIAS for d1cca1nyhhr83r.cloudfront.net, forward-email-site-verification=oXR6BI9a`
SOA	1	`ns1.dnsimple.com admin.dnsimple.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.dnsimple-edge.net, ns2.dnsimple-edge.net)

AI analysis

The parent of www.developercertificate.net is developercertificate.net.

developercertificate.net maps to four IP numbers: 54.192.100.20, 54.192.100.67, 54.192.100.69 and 54.192.100.113.

Other host names such as jasonma.org, tableskill.com, marketingmindsetmastery.com, server-54-192-100-113.iad2.r.cloudfront.net and cornerstoneeng.llc share IPs with developercertificate.net.

developercertificate.net is delegated to four name servers: ns1.dnsimple.com, ns3.dnsimple.com, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org.

developercertificate.net at least partially shares name servers with other domains, for example wasmbench.com, drasi.io, dbotha.com, smallestdotnet.com and fullbodyscan.com.

These name servers are often used together with ns2.dnsimple.com and ns4.dnsimple.com.

Host names with two IP numbers:

ns1.dnsimple.com points to: 2400:cb00:2049:1::a29f:1804 and 162.159.24.4

ns3.dnsimple.com points to: 2400:cb00:2049:1::a29f:1a04 and 162.159.26.4

ns2.dnsimple-edge.net points to: 2620:111:8005::53 and 199.247.153.53

ns4.dnsimple-edge.org points to: 2620:111:8007::53 and 199.247.155.53

Two mail servers handle developercertificate.net: mx1.forwardemail.net and mx2.forwardemail.net.

developercertificate.net shares the same mail server setup as other domains, including casablancachess.com, aust-asiaticmgmt.com, protazoa.com, tegenaanval.nl and ezkell.com.

developercertificate.net shares at least partially some mail servers with other domains, for instance bgonline.rs, mmseagames2013.com, eremix.com, owboostroyal.com and arkrose.com.

Host names with four IP numbers: The host name mx1.forwardemail.net points to: 2604:a880:2:d0::306:1, 2a02:6ea0:d71e::2, 121.127.44.56 and 138.197.213.185; the host name mx2.forwardemail.net points to: 2604:a880:400:d1::cd:9001, 2a02:6ea0:d71e::1, 104.248.224.170 and 121.127.44.59.

developercertificate.net - robtex.com