devopsdays.slack.com - dns.ninja

`devopsdays.slack.com`

DNSSEC	⚠️ Not signed
A	18.230.171.141^{🇧🇷 Amazon18.230.0.0/16 EC2 GRU prefix}
		PTR	`ec2-18-230-171-141.sa-east-1.compute.amazonaws.com`
A	54.94.183.148^{🇧🇷 Amazon54.94.128.0/18 EC2 GRU prefix}
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
TXT	`v=spf1 -all`

`slack.com`

	DNSSEC	⚠️ Not signed
	A	18.230.171.141^{🇧🇷 Amazon18.230.0.0/16 EC2 GRU prefix}
	A	54.94.183.148^{🇧🇷 Amazon54.94.128.0/18 EC2 GRU prefix}
	NS	`ns-1493.awsdns-58.org` ⭐
	NS	`ns-166.awsdns-20.com`
	NS	`ns-1901.awsdns-45.co.uk`
	NS	`ns-606.awsdns-11.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`OSSRH-54733`
	TXT	`_0vidyxobp6x350odqhb4fo7fdxhmtq3`
	TXT	`google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k`
	TXT	`google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk`
	TXT	`google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc`
	TXT	`google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE`
	TXT	`google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE`
	TXT	`google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ`
	TXT	`google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ`
	TXT	`hubspot-developer-verification=OTE4NzYxYTgtMDUwZi00MzgzLTk2YTUtZDAwNjBlODg1MWM0`
	TXT	`spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632`
	TXT	`v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra....`
	SOA	`ns-1493.awsdns-58.org`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (93/100)
rank #420 globally
rank #265 in the tld
Semrush Rank:#1,593 Keywords:239,092 Traffic:1,677,936/mo
WOT: SAFE (93/100)
📈 Tranco rank: #331

Slack is a business communication platform founded in 2013 and acquired by Salesforce in 2021 for $27.7 billion. With over 18 million daily active users, Slack has become essential collaboration infrastructure for businesses, replacing email for many internal communications.

Slack offers real-time messaging, channels for organized discussions, file sharing, integrations with thousands of apps, and Slack Huddles for quick audio conversations. The platform pioneered many features now standard in business chat tools.

Slack's infrastructure handles millions of concurrent connections with strict real-time requirements. The platform processes billions of messages daily, with significant infrastructure for search and file storage.

DNS for slack.com uses Amazon Route 53 with global distribution. The platform's enterprise customers require high availability and security.

Same first word

devopsdays.istanbul

devopsdays.org

devopsdays.tw

devopsdays.github.io

DNS History

40 records (3 active, 37 former)

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-16 → 2026-06-13 · 3 obs

○ 2017-03-29 03:36:16
● 2026-02-16 03:04:38
● 2026-06-13 17:17:28

○MXmxa.mailgun.org2017-03-29 → 2017-03-29 · 3 obs

● 2017-03-29 03:36:16
○ 2026-02-16 03:04:38
○ 2026-06-13 17:17:28

○MXmxb.mailgun.org2017-03-29 → 2017-03-29 · 3 obs

● 2017-03-29 03:36:16
○ 2026-02-16 03:04:38
○ 2026-06-13 17:17:28

○A18.134.215.412026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-26 04:27:38
● 2026-03-28 21:40:12
○ 2026-04-04 01:11:42
○ 2026-06-13 17:17:28

○A18.159.197.2252026-02-16 → 2026-06-09 · 37 obs

○ 2017-03-29 03:36:16
● 2026-02-16 03:04:38
● 2026-02-17 06:03:54
○ 2026-02-20 11:40:12
● 2026-02-21 08:29:42
○ 2026-02-21 16:00:46
● 2026-02-25 20:58:44
● 2026-03-07 01:10:42
○ 2026-03-10 10:49:24
● 2026-03-12 05:04:20
● 2026-03-13 14:04:06
○ 2026-03-14 00:36:04
● 2026-03-14 07:48:38
● 2026-03-26 04:27:38
○ 2026-03-28 21:40:12
● 2026-04-04 01:11:42
● 2026-04-10 05:01:52
○ 2026-04-12 06:01:32
● 2026-04-16 07:30:28
○ 2026-04-20 08:17:54
● 2026-04-23 20:43:08
● 2026-05-01 05:19:04
○ 2026-05-01 06:24:42
● 2026-05-01 09:37:16
● 2026-05-13 03:42:58
○ 2026-05-13 17:38:54
○ 2026-05-13 20:39:34
● 2026-05-17 09:21:50
○ 2026-05-17 21:33:14
○ 2026-05-17 22:35:08
● 2026-05-18 05:24:28
● 2026-05-18 21:08:52
○ 2026-05-23 04:14:34
○ 2026-06-08 17:00:44
● 2026-06-09 09:50:26
○ 2026-06-11 03:52:34
○ 2026-06-13 17:17:28

○A18.168.172.2382026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-26 04:27:38
● 2026-03-28 21:40:12
○ 2026-04-04 01:11:42
○ 2026-06-13 17:17:28

○A18.169.120.1912026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-26 04:27:38
● 2026-03-28 21:40:12
○ 2026-04-04 01:11:42
○ 2026-06-13 17:17:28

○A18.169.61.1892026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-26 04:27:38
● 2026-03-28 21:40:12
○ 2026-04-04 01:11:42
○ 2026-06-13 17:17:28

○A18.216.36.1902026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A18.221.229.812026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

●A18.230.171.1412026-04-20 → 2026-06-13 · 22 obs

○ 2026-04-16 07:30:28
● 2026-04-20 08:17:54
○ 2026-04-23 20:43:08
○ 2026-05-01 05:19:04
● 2026-05-01 06:24:42
○ 2026-05-01 09:37:16
○ 2026-05-13 03:42:58
● 2026-05-13 17:38:54
● 2026-05-13 20:39:34
○ 2026-05-17 09:21:50
● 2026-05-17 21:33:14
● 2026-05-17 22:35:08
○ 2026-05-18 05:24:28
○ 2026-05-18 21:08:52
● 2026-05-23 04:14:34
○ 2026-05-25 12:39:02
○ 2026-06-02 02:21:22
● 2026-06-08 13:28:42
● 2026-06-08 17:00:44
○ 2026-06-09 09:50:26
● 2026-06-11 03:52:34
● 2026-06-13 17:17:28

○A3.129.123.2352026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.130.95.1822026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.134.44.1342026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.142.111.402026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.143.19.652026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.143.53.12026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.210.88.62026-02-20 → 2026-04-12 · 16 obs

○ 2026-02-16 03:04:38
○ 2026-02-17 06:03:54
● 2026-02-20 11:40:12
○ 2026-02-21 08:29:42
● 2026-02-21 16:00:46
○ 2026-02-25 20:58:44
○ 2026-03-07 01:10:42
● 2026-03-10 10:49:24
○ 2026-03-12 05:04:20
○ 2026-03-13 14:04:06
● 2026-03-14 00:36:04
○ 2026-03-14 07:48:38
○ 2026-04-10 05:01:52
● 2026-04-12 06:01:32
○ 2026-04-16 07:30:28
○ 2026-06-13 17:17:28

○A3.22.139.1762026-05-25 → 2026-06-02 · 5 obs

○ 2026-05-23 04:14:34
● 2026-05-25 12:39:02
● 2026-06-02 02:21:22
○ 2026-06-08 13:28:42
○ 2026-06-13 17:17:28

○A3.68.124.1682026-02-16 → 2026-06-09 · 37 obs

○A3.68.124.952026-02-16 → 2026-06-09 · 37 obs

○A3.68.170.1532026-02-16 → 2026-06-09 · 37 obs

○A3.68.175.982026-02-16 → 2026-06-09 · 37 obs

○A3.95.117.962026-02-20 → 2026-04-12 · 16 obs

○A34.193.255.52026-02-20 → 2026-04-12 · 16 obs

○A34.196.46.2022026-02-20 → 2026-04-12 · 16 obs

○A34.202.253.62026-02-20 → 2026-04-12 · 16 obs

○A34.203.97.102026-02-20 → 2026-04-12 · 16 obs

○A34.204.109.2262026-02-20 → 2026-04-12 · 16 obs

○A34.205.195.662026-02-20 → 2026-04-12 · 16 obs

○A34.225.62.1852026-02-20 → 2026-04-12 · 16 obs

○A34.231.24.2242026-02-20 → 2026-04-12 · 16 obs

○A52.29.238.2122026-02-16 → 2026-06-09 · 37 obs

○A52.73.140.592026-02-20 → 2026-04-12 · 16 obs

○A54.147.59.1692026-02-20 → 2026-04-12 · 16 obs

○A54.163.235.1192026-02-20 → 2026-04-12 · 16 obs

○A54.192.145.932017-03-29 → 2017-03-29 · 3 obs

● 2017-03-29 03:36:16
○ 2026-02-16 03:04:38
○ 2026-06-13 17:17:28

○A54.225.153.2052026-02-20 → 2026-04-12 · 16 obs

○A54.92.199.1862026-02-20 → 2026-04-12 · 16 obs

●A54.94.183.1482026-04-20 → 2026-06-13 · 22 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
slack.com	ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org	2 records

✅ Authoritative Response

Server:205.251.197.213

NS records: ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 268ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`18.230.171.141, 54.94.183.148`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`v=spf1 -all`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-166.awsdns-20.com, ns-166.awsdns-20.com)

Analysis

IP Addresses

devopsdays.slack.com points to two IP numbers: 18.230.171.141 and 54.94.183.148.

seed.slack.com, aragousimplementation.slack.com, cryptoinvest.slack.com and two other host names share IP numbers with devopsdays.slack.com.

Mail Servers

Mail for devopsdays.slack.com is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

devopsdays.slack.com uses an identical mail server configuration to several other domains — among them eclubasseco.slack.com, ualeadershipprograms.slack.com, quien.com and two more.

devopsdays.slack.com has at least partial mail server overlap with other domains such as kreditzy.com, cinnovate.atlassian.net, ipark-media.atlassian.net and two more.

This set of mail servers commonly appears together with the mail servers inbound-smtp.us-west-2.amazonaws.com.

inbound-smtp.us-east-1.amazonaws.com has five IP addresses: 3.211.210.226, 44.206.9.87, 44.210.166.32 plus two others.