slack-engineering.com - dns.ninja

`slack-engineering.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.p07.nsone.net` ⭐
		A	2620:4d:4000:6259:7:7:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p07.nsone.net`
		A	198.51.44.7^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p07.nsone.net`
NS	`dns2.p07.nsone.net`
		A	2a00:edc0:6259:7:7::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p07.nsone.net`
		A	198.51.45.7^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p07.nsone.net`
NS	`dns3.p07.nsone.net`
		A	2620:4d:4000:6259:7:7:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p07.nsone.net`
		A	198.51.44.71^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p07.nsone.net`
NS	`dns4.p07.nsone.net`
		A	2a00:edc0:6259:7:7::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p07.nsone.net`
		A	198.51.45.71^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p07.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`
SOA	`dns1.p07.nsone.net`hostmaster@nsone.net serial=1623440338

`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=1783826607

Same first word

slack-engineering.com

DNS History

19 records (13 active, 6 former)

○NSa.dns.gandi.net2016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

○NSb.dns.gandi.net2016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

○NSc.dns.gandi.net2016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

●NSdns1.p07.nsone.net2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSdns2.p07.nsone.net2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSdns3.p07.nsone.net2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSdns4.p07.nsone.net2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSns01.slackdns.com2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSns02.slackdns.com2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSns03.slackdns.com2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●NSns04.slackdns.com2026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

○MXfb.mail.gandi.net2016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

○MXspool.mail.gandi.net2016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

●A184.73.83.1602026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

○A217.70.184.382016-12-16 → 2017-12-03 · 4 obs

● 2016-12-16 03:01:32
● 2017-12-03 10:09:10
○ 2026-04-14 13:11:48
○ 2026-07-12 03:39:06

●A23.22.255.422026-04-15 → 2026-07-12 · 16 obs

○ 2026-04-14 13:11:48
● 2026-04-15 02:08:36
● 2026-04-15 11:42:08
○ 2026-04-15 13:43:40
○ 2026-04-19 13:20:12
● 2026-04-19 15:48:36
● 2026-04-19 20:57:18
○ 2026-04-20 04:49:36
● 2026-04-20 12:11:20
○ 2026-04-20 14:27:02
● 2026-04-21 00:49:36
● 2026-04-21 15:12:22
○ 2026-04-21 19:03:20
○ 2026-04-21 21:19:32
● 2026-04-22 06:16:24
● 2026-07-12 03:39:06

●A3.223.34.1242026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

●A3.228.189.1352026-04-14 → 2026-07-12 · 15 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
○ 2026-04-15 02:08:36
○ 2026-04-15 11:42:08
● 2026-04-15 13:43:40
● 2026-04-19 13:20:12
○ 2026-04-19 15:48:36
○ 2026-04-19 20:57:18
● 2026-04-20 04:49:36
○ 2026-04-20 12:11:20
● 2026-04-20 14:27:02
○ 2026-04-21 00:49:36
○ 2026-04-21 15:12:22
● 2026-04-21 19:03:20
● 2026-07-12 03:39:06

●A34.195.54.1612026-04-14 → 2026-07-12 · 3 obs

○ 2017-12-03 10:09:10
● 2026-04-14 13:11:48
● 2026-07-12 03:39:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
slack-engineering.com	dns1.p07.nsone.net, dns2.p07.nsone.net, dns3.p07.nsone.net, dns4.p07.nsone.net...	4 records

✅ Authoritative Response

Server:198.51.45.71

NS records: dns1.p07.nsone.net, dns2.p07.nsone.net, dns3.p07.nsone.net, dns4.p07.nsone.net, ns01.slackdns.com, ns02.slackdns.com, ns03.slackdns.com, ns04.slackdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for slack-engineering.com (unsigned zone)

⏱️ Timing

Total: 489ms | Queries: -

📄 Records

Type	Count	Sample Data
A	5	`34.195.54.161, 184.73.83.160...`
NS	8	`dns1.p07.nsone.net, dns2.p07.nsone.net...`
SOA	1	`dns1.p07.nsone.net hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

slack-engineering.com directs to five IP numbers, including 3.223.34.124, 3.228.189.135, 23.22.255.42 and two others

berre.screenhero.com, get.slack.help, badges.slackcertified.com plus two other host names have IP numbers in common with slack-engineering.com.

Name Servers

slack-engineering.com delegates authority to 8 name servers: ns01.slackdns.com, ns02.slackdns.com, ns03.slackdns.com plus 5 other.

slack-engineering.com has at least partial name server overlap with other domains, such as artlife.com, mcmastermusicaltheatre.com, erliperezjazz.com and two others.

dns2.p07.nsone.net, dns4.p07.nsone.net and dns1.p07.nsone.net — plus 7 other name servers — are commonly paired with these name servers.

Host names pointing to two IP addresses:

dns1.p07.nsone.net directs traffic to 198.51.44.7 and 2620:4d:4000:6259:7:7:0:1.

dns2.p07.nsone.net directs traffic to 198.51.45.7 and 2a00:edc0:6259:7:7::2.

dns3.p07.nsone.net directs traffic to 198.51.44.71 and 2620:4d:4000:6259:7:7:0:3.

dns4.p07.nsone.net directs traffic to 198.51.45.71 and 2a00:edc0:6259:7:7::4.

Host names resolving to a single IP address:

ns01.slackdns.com has the IP address 45.54.67.1.

ns02.slackdns.com has the IP address 45.54.67.65.

ns03.slackdns.com has the IP address 45.54.67.129.

ns04.slackdns.com has the IP address 45.54.67.193.