slack.com
Slack | AI Work Platform & Productivity Tools
slack.com is registered with MarkMonitor Inc. since October 21, 1992 (34.1 years). The registration expires on October 20, 2027. The site runs on OneTrust, Swiper, HSTS and 3 other technologies. Its email security grade is C. Its SSL certificate is issued by Let's Encrypt and is valid for 56 more days.
- Domain age
- 34.1 yrs
- Technologies
- 6
- Email security
- C
- SSL days left
- 56
Registration
| Registrar | MarkMonitor Inc. |
|---|---|
| IANA ID | 292 |
| Registered | October 21, 1992 |
| Expires | October 20, 2027 |
| Updated | September 18, 2025 |
| Status | client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited |
| Name servers | ns-1493.awsdns-58.org, ns-166.awsdns-20.com, ns-1901.awsdns-45.co.uk, ns-606.awsdns-11.net |
| DNSSEC | Signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 3.68.124.168 | 2 |
| A | 3.68.170.153 | 2 |
| A | 3.68.175.98 | 2 |
| A | 18.159.197.225 | 2 |
| A | 52.29.238.212 | 2 |
| A | 3.68.124.95 | 2 |
| MX | aspmx.l.google.com 1 | 60 |
| MX | alt1.aspmx.l.google.com 5 | 60 |
| MX | alt2.aspmx.l.google.com 5 | 60 |
| MX | aspmx2.googlemail.com 10 | 60 |
| MX | aspmx3.googlemail.com 10 | 60 |
| NS | ns-166.awsdns-20.com | 2313 |
| NS | ns-606.awsdns-11.net | 2313 |
| NS | ns-1493.awsdns-58.org | 2313 |
| NS | ns-1901.awsdns-45.co.uk | 2313 |
| CAA | iodef 0 mailto:[email protected] | 300 |
| CAA | issue 0 amazon.com | 300 |
| CAA | issue 0 digicert.com; account=455b15ed272bed097725c6ea50e89921fc57379c5338a29305c05771df65fff1 | 300 |
| CAA | issue 0 letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1532134906 | 300 |
| TXT | OSSRH-54733 | 1005 |
| TXT | _0vidyxobp6x350odqhb4fo7fdxhmtq3 | 1005 |
| TXT | spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632 | 1005 |
| TXT | google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k | 1005 |
| TXT | google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk | 1005 |
| TXT | google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc | 1005 |
| TXT | google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE | 1005 |
| TXT | google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE | 1005 |
| TXT | google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ | 1005 |
| TXT | google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ | 1005 |
| TXT | hubspot-developer-verification=OTE4NzYxYTgtMDUwZi00MzgzLTk2YTUtZDAwNjBlODg1MWM0 | 1005 |
| TXT | v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra.slack.com -all | 1005 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YR2, Let's Encrypt |
| Expires | January 5, 2027 |
| Days remaining | 56 |
| Protocol | TLSv1.3 |
| Names | *.slack.com, slack.com |
Email security
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC policy is reject: mail that fails authentication is blocked.
- goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | Slack | AI Work Platform & Productivity Tools |
|---|---|
| Description | Boost productivity and save time with Slack — the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today. |
| Language | en-US |
| Canonical | https://slack.com |
| Indexable | Yes |
| Word count | 1900 |
About slack.com
Who is the registrar of slack.com?
slack.com is registered with MarkMonitor Inc. (IANA ID 292).
When does slack.com expire?
The current registration of slack.com expires on October 20, 2027. It was first registered on October 21, 1992.
What technology does slack.com use?
We detected 6 technologies on slack.com, including OneTrust, Swiper, HSTS, YouTube, Apache HTTP Server, Envoy.
Does slack.com protect its email with SPF and DMARC?
slack.com scores 70/100 (grade C) for email security. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of slack.com?
slack.com uses ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1493.awsdns-58.org, ns-1901.awsdns-45.co.uk.