slackcertified.com - dns.ninja

`slackcertified.com`

DNSSEC	⚠️ Not signed
A	3.223.34.124^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-223-34-124.compute-1.amazonaws.com`
A	3.228.189.135^{🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix}
A	23.22.255.42^{🇺🇸 Amazon23.22.0.0/15 EC2 IAD prefix}
A	34.195.54.161^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	184.73.83.160^{🇺🇸 Amazon184.73.0.0/16 IAD prefix}
NS	`dns1.p06.nsone.net` ⭐
		A	2620:4d:4000:6259:7:6:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p06.nsone.net`
		A	198.51.44.6^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p06.nsone.net`
NS	`dns2.p06.nsone.net`
		A	2a00:edc0:6259:7:6::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p06.nsone.net`
		A	198.51.45.6^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p06.nsone.net`
NS	`dns3.p06.nsone.net`
		A	2620:4d:4000:6259:7:6:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p06.nsone.net`
		A	198.51.44.70^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p06.nsone.net`
NS	`dns4.p06.nsone.net`
		A	2a00:edc0:6259:7:6::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p06.nsone.net`
		A	198.51.45.70^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p06.nsone.net`
NS	`ns01.slackdns.com`
		A	45.54.67.1^{🇺🇸 NETACTUATE45.54.67.0/24}
			PTR	`ns01.slackdns.com`
NS	`ns02.slackdns.com`
		A	45.54.67.65^{🇺🇸 NETACTUATE45.54.67.0/24}
			PTR	`ns02.slackdns.com`
NS	`ns03.slackdns.com`
		A	45.54.67.129^{🇺🇸 NETACTUATE45.54.67.0/24}
			PTR	`ns03.slackdns.com`
NS	`ns04.slackdns.com`
		A	45.54.67.193^{🇺🇸 NETACTUATE45.54.67.0/24}
			PTR	`ns04.slackdns.com`
MX	`mxa-00177002.gslb.pphosted.com` ⭐
		A	148.163.154.137^{🇺🇸 Proofpoint148.163.152.0/22}
			PTR	`mx0b-00177002.pphosted.com`
MX	`mxb-00177002.gslb.pphosted.com` ⭐
		A	148.163.154.137^{🇺🇸 Proofpoint148.163.152.0/22}
			PTR	`mx0b-00177002.pphosted.com`
TXT	`google-site-verification=CG0a2QNq90Xdv82d6RA92uCU_fMVunt6pStWbYDSD8I`
TXT	`google-site-verification=hqQlrbafDZKRXU4eykFtRFI-c9b2XKOgIomp2FOkv4M`
SOA	`dns1.p06.nsone.net`hostmaster@nsone.net serial=1652700626

`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=1783925042

Subdomains

directory.slackcertified.com

badges.slackcertified.com

Same first word

DNS History

23 records (15 active, 8 former)

●NSdns1.p06.nsone.net2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSdns2.p06.nsone.net2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSdns3.p06.nsone.net2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSdns4.p06.nsone.net2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSns01.slackdns.com2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSns02.slackdns.com2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSns03.slackdns.com2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

●NSns04.slackdns.com2019-12-15 → 2026-07-13 · 2 obs

● 2019-12-15 05:29:32
● 2026-07-13 07:12:54

○MXalt1.aspmx.l.google.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

○MXalt2.aspmx.l.google.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

○MXaspmx.l.google.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

○MXaspmx2.googlemail.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

○MXaspmx3.googlemail.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

●MXmxa-00177002.gslb.pphosted.com2026-02-16 → 2026-07-13 · 5 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

●MXmxb-00177002.gslb.pphosted.com2026-02-16 → 2026-07-13 · 5 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

○A18.210.141.732019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

●A184.73.83.1602026-02-16 → 2026-07-13 · 5 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

●A23.22.255.422026-02-16 → 2026-07-13 · 52 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
● 2026-03-31 03:38:14
○ 2026-03-31 05:13:16
○ 2026-03-31 20:01:16
● 2026-04-01 02:10:26
● 2026-04-02 04:09:36
○ 2026-04-02 18:08:14
○ 2026-04-03 02:17:20
● 2026-04-03 10:57:10
● 2026-04-03 21:24:04
○ 2026-04-04 01:13:30
● 2026-04-05 03:43:18
○ 2026-04-05 06:12:42
○ 2026-04-05 10:31:28
● 2026-04-05 11:26:38
● 2026-04-06 01:13:34
○ 2026-04-06 10:25:58
○ 2026-04-07 01:34:12
● 2026-04-07 15:00:26
○ 2026-04-07 15:54:14
○ 2026-04-08 02:09:20
● 2026-04-08 07:47:28
● 2026-04-10 01:16:50
○ 2026-04-10 02:34:24
○ 2026-04-11 03:52:40
● 2026-04-11 05:30:18
○ 2026-04-11 20:58:50
● 2026-04-12 02:18:08
○ 2026-04-12 06:08:06
○ 2026-04-12 13:52:36
● 2026-04-13 01:48:50
● 2026-04-13 13:00:28
○ 2026-04-14 06:29:54
● 2026-04-14 07:12:06
● 2026-04-15 02:08:36
○ 2026-04-15 11:42:08
● 2026-04-15 13:43:40
● 2026-04-15 20:28:34
○ 2026-04-17 02:41:44
○ 2026-04-18 12:32:52
● 2026-04-19 12:30:18
● 2026-04-19 15:47:36
○ 2026-04-19 17:20:12
● 2026-04-19 20:57:16
● 2026-04-20 12:11:20
○ 2026-04-20 14:27:02
○ 2026-04-21 00:48:34
● 2026-04-21 15:12:22
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

○A3.213.37.582019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

○A3.218.47.1632019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 05:29:32
○ 2026-02-16 03:05:40
○ 2026-07-13 07:12:54

●A3.223.34.1242026-02-16 → 2026-07-13 · 5 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

●A3.228.189.1352026-02-16 → 2026-07-13 · 52 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
● 2026-03-31 20:01:16
○ 2026-04-01 02:10:26
○ 2026-04-02 04:09:36
● 2026-04-02 18:08:14
● 2026-04-03 02:17:20
○ 2026-04-03 10:57:10
○ 2026-04-03 21:24:04
● 2026-04-04 01:13:30
○ 2026-04-05 03:43:18
● 2026-04-05 06:12:42
● 2026-04-05 10:31:28
○ 2026-04-05 11:26:38
○ 2026-04-06 01:13:34
● 2026-04-06 10:25:58
● 2026-04-07 01:34:12
○ 2026-04-07 15:00:26
● 2026-04-07 15:54:14
● 2026-04-08 02:09:20
○ 2026-04-08 07:47:28
○ 2026-04-10 01:16:50
● 2026-04-10 02:34:24
● 2026-04-11 03:52:40
○ 2026-04-11 05:30:18
● 2026-04-11 20:58:50
○ 2026-04-12 02:18:08
● 2026-04-12 06:08:06
● 2026-04-12 13:52:36
○ 2026-04-13 01:48:50
○ 2026-04-13 13:00:28
● 2026-04-14 06:29:54
○ 2026-04-14 07:12:06
○ 2026-04-15 02:08:36
● 2026-04-15 11:42:08
○ 2026-04-15 13:43:40
○ 2026-04-15 20:28:34
● 2026-04-17 02:41:44
● 2026-04-18 12:32:52
○ 2026-04-19 12:30:18
○ 2026-04-19 15:47:36
● 2026-04-19 17:20:12
○ 2026-04-19 20:57:16
○ 2026-04-20 12:11:20
● 2026-04-20 14:27:02
● 2026-04-21 00:48:34
○ 2026-04-21 15:12:22
○ 2026-04-21 21:19:32
● 2026-04-22 05:12:44
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

●A34.195.54.1612026-02-16 → 2026-07-13 · 5 obs

○ 2019-12-15 05:29:32
● 2026-02-16 03:05:40
○ 2026-07-08 16:15:54
● 2026-07-08 20:56:50
● 2026-07-13 07:12:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
slackcertified.com	dns1.p06.nsone.net, dns2.p06.nsone.net, dns3.p06.nsone.net, dns4.p06.nsone.net...	4 records

✅ Authoritative Response

Server:198.51.44.6

NS records: dns1.p06.nsone.net, dns2.p06.nsone.net, dns3.p06.nsone.net, dns4.p06.nsone.net, ns01.slackdns.com, ns02.slackdns.com, ns03.slackdns.com, ns04.slackdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for slackcertified.com (unsigned zone)

⏱️ Timing

Total: 1280ms | Queries: -

📄 Records

Type	Count	Sample Data
A	5	`3.223.34.124, 23.22.255.42...`
NS	8	`dns1.p06.nsone.net, dns2.p06.nsone.net...`
MX	2	`mxa-00177002.gslb.pphosted.com (pri: 10), mxb-00177002.gslb.pphosted.com (pri: 10)`
TXT	2	`google-site-verification=CG0a2QNq90Xdv82, google-site-verification=hqQlrbafDZKRXU4`
SOA	1	`dns1.p06.nsone.net hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.slackdns.com, ns02.slackdns.com, ns03.slackdns.com...)

Analysis

Hierarchy

The parent domain of directory.slackcertified.com and badges.slackcertified.com is slackcertified.com.

IP Addresses

slackcertified.com has five IP addresses, specifically 3.223.34.124, 3.228.189.135, 23.22.255.42 and two more

Among the host names that share IP numbers with slackcertified.com are slack.camp, slack.team, email.slack.com and two others.

Name Servers

slackcertified.com carries NS records listing 8 name servers — ns01.slackdns.com, ns02.slackdns.com, ns03.slackdns.com and 5 others.

The name servers of slackcertified.com overlap at least partially with those of other domains — among them christinehaynes.com, bricebydesign.com, rolexsubmariner.cc and two more.

These name servers commonly appear in delegations together with dns1.p06.nsone.net, dns2.p06.nsone.net, dns3.p06.nsone.net and 7 other.

Hosts with two IP numbers each:

The A records for dns1.p06.nsone.net return 198.51.44.6 and 2620:4d:4000:6259:7:6:0:1.

The A records for dns2.p06.nsone.net return 198.51.45.6 and 2a00:edc0:6259:7:6::2.

The A records for dns3.p06.nsone.net return 198.51.44.70 and 2620:4d:4000:6259:7:6:0:3.

The A records for dns4.p06.nsone.net return 198.51.45.70 and 2a00:edc0:6259:7:6::4.

Hosts that resolve to one IP address:

ns01.slackdns.com resolves to the IP address 45.54.67.1.

ns02.slackdns.com resolves to the IP address 45.54.67.65.

ns03.slackdns.com resolves to the IP address 45.54.67.129.

ns04.slackdns.com resolves to the IP address 45.54.67.193.

Mail Servers

The MX records for slackcertified.com point to two mail servers: mxa-00177002.gslb.pphosted.com and mxb-00177002.gslb.pphosted.com.

slackcertified.com has the same mail server arrangement as a number of other domains, for example atticlabs.io, mulesoft.com, quipelements.com and two more.

Each of mxa-00177002.gslb.pphosted.com and mxb-00177002.gslb.pphosted.com points to exactly one IP address: 148.163.154.137.

mxa-00177002.gslb.pphosted.com and mxb-00177002.gslb.pphosted.com each have 148.163.154.137 IP addresses.