dev.slack.com - robtex.com
dev.slack.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.217.81.76🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-217-81-76.compute-1.amazonaws.com | ||||||
| A | 50.16.84.201🇺🇸 Amazon50.16.0.0/16 EC2 IAD prefix | ||||||
| A | 54.204.100.241🇺🇸 Amazon54.204.0.0/15 EC2 IAD 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 | google-site-verification=u1SqTDXzeM4fMNOVnGYbYLYoxrXqTsAFIb7iLX9lMAw | ||||||
| TXT | v=spf1 include:amazonses.com ~all | ||||||
slack.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 3.95.117.96🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix | ||||||
| A | 3.210.88.6🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| A | 34.193.255.5🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.196.46.202🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.202.253.6🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.203.97.10🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.204.109.226🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.205.195.66🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix | ||||||
| A | 34.225.62.185🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix | ||||||
| A | 34.231.24.224🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix | ||||||
| A | 52.73.140.59🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix | ||||||
| A | 54.92.199.186🇺🇸 Amazon54.92.128.0/17 EC2 IAD prefix | ||||||
| A | 54.147.59.169🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix | ||||||
| A | 54.163.235.119🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix | ||||||
| A | 54.225.153.205🇺🇸 Amazon54.224.0.0/15 EC2 IAD 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.orgawsdns-hostmaster@amazon.com serial=1 | ||||||
rank #428 globally
rank #271 in the tld
This domain, slack.com, is the official website for Slack, a business communication platform. Slack offers a variety of features such as direct messaging, group chats, and topic-specific channels to help teams communicate and collaborate more effectively. In addition to its communication features, it also allows integration with other services like Google Drive, Trello, and Dropbox.WOT: SAFE (93/100)
📈 Tranco rank: #313
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.
Subdomains
files.dev.slack.com |
sunshine-proxy-test.dev.slack.com |
platform-tls-client.dev.slack.com |
join.dev.slack.com |
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
●MXinbound-smtp.us-east-1.amazonaws.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 09:54:36
○MXmxa.mailgun.org2017-03-23 → 2017-03-23 · 2 obs
○ 2026-03-13 09:54:36
○MXmxb.mailgun.org2017-03-23 → 2017-03-23 · 2 obs
○ 2026-03-13 09:54:36
●A3.217.81.762026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 09:54:36
●A50.16.84.2012026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 09:54:36
○A52.84.91.1372017-03-23 → 2017-03-23 · 2 obs
○ 2026-03-13 09:54:36
●A54.204.100.2412026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 09:54:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, h.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 | 1 record |
✅ Authoritative Response
Server: 205.251.194.94
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: 478ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 54.204.100.241, 3.217.81.76... |
| MX | 1 | inbound-smtp.us-east-1.amazonaws.com (pr |
| TXT | 2 | google-site-verification=u1SqTDXzeM4fMNO, v=spf1 include:amazonses.com ~all |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-166.awsdns-20.com)
Analysis
Hierarchy
dev.slack.com has children files.dev.slack.com, sunshine-proxy-test.dev.slack.com, platform-tls-client.dev.slack.com and join.dev.slack.com.
IP Addresses
dev.slack.com points to IPs: 3.217.81.76, 50.16.84.201 and 54.204.100.241.
Other host names such as qa.slack.com, ec2-3-217-81-76.compute-1.amazonaws.com, ec2-50-16-84-201.compute-1.amazonaws.com and ec2-54-204-100-241.compute-1.amazonaws.com share IP numbers with dev.slack.com.
Mail Servers
dev.slack.com is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.
dev.slack.com shares the same mail server setup as other domains, including eticamedlog.cl, p445m.info, ibm-watson-iot.slack.com, leedelitogo.com and advise-conning.com.
dev.slack.com shares mail servers with other domains at least in part, for instance hmgroup.atlassian.net, ohenz.com, sprizzy.atlassian.net, loyaltymethods.atlassian.net and agile-values.atlassian.net.
These mail servers are commonly used alongside inbound-smtp.us-west-2.amazonaws.com, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.