Domain Intelligence Report

slack.com

DNS records, WHOIS/RDAP registration, SSL certificate, subdomain enumeration, and email-security posture — aggregated in real time and cached.

6
DNS record types
51d
SSL cert remaining
53
Subdomains found
SPF + DMARC
Email security
DNS

DNS Records

All record types resolved from authoritative DNS for slack.com.

A 15 records
  • 34.203.97.10
  • 34.205.195.66
  • 34.196.46.202
  • 54.147.59.169
  • 54.225.153.205
  • 52.73.140.59
  • 34.231.24.224
  • 34.202.253.6
  • 54.92.199.186
  • 34.225.62.185
  • 34.193.255.5
  • 34.204.109.226
  • 54.163.235.119
  • 3.95.117.96
  • 3.210.88.6
MX 5 records
  • 10 aspmx3.googlemail.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
  • 1 aspmx.l.google.com.
  • 10 aspmx2.googlemail.com.
TXT 12 records
  • "hubspot-developer-verification=OTE4NzYxYTgtMDUwZi00MzgzLTk2YTUtZDAwNjBlODg1MWM0"
  • "spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632"
  • "v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra.slack.com -all"
  • "OSSRH-54733"
  • "_0vidyxobp6x350odqhb4fo7fdxhmtq3"
  • "google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k"
  • "google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk"
  • "google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc"
  • "google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE"
  • "google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE"
  • "google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ"
  • "google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ"
NS 4 records
  • ns-1493.awsdns-58.org.
  • ns-166.awsdns-20.com.
  • ns-1901.awsdns-45.co.uk.
  • ns-606.awsdns-11.net.
CAA 3 records
  • 0 issue "digicert.com; account=455b15ed272bed097725c6ea50e89921fc57379c5338a29305c05771df65fff1"
  • 0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1532134906"
  • 0 iodef "mailto:hostmaster@slack-corp.com"
SOA 1 record
  • ns-1493.awsdns-58.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 300
Registration

WHOIS / RDAP

Registration data for slack.com via the RDAP protocol, with port-43 WHOIS fallback if RDAP is unavailable.

whois via rdap.org
Registrar
MarkMonitor Inc.
Created
1992-10-21T04:00:00Z
Updated
2025-09-18T12:04:00Z
Expires
2027-10-20T04:00:00Z
Handle
900992_DOMAIN_COM-VRSN
Nameservers
NS-1493.AWSDNS-58.ORGNS-166.AWSDNS-20.COMNS-1901.AWSDNS-45.CO.UKNS-606.AWSDNS-11.NET
Status
client delete prohibitedclient transfer prohibitedclient update prohibitedserver delete prohibitedserver transfer prohibitedserver update prohibited
TLS

SSL Certificate

Live TLS handshake against slack.com. No third-party scanner.

ssl 51 days remaining
Issuer
CN=R13,O=Let's Encrypt,C=US
Subject
CN=slack.com
Valid from
2026-04-04T09:47:06+00:00
Valid to
2026-07-03T09:47:05+00:00
Serial
500057824541125625324435540273652500966506
SANs (2)
*.slack.comslack.com
Reconnaissance

Subdomains discovered

Aggregated from Certificate Transparency logs (crt.sh, certspotter, hackertarget) with DNS bruteforce fallback if all CT sources fail.

⚠ Partial results — crt.sh status 502 · certspotter rate-limited · hackertarget limited: API count exceeded - Increase Quota with Membership
subdomains 53 found
crt.sh status 502 certspotter rate-limited hackertarget limited: API count exceeded - Increase Quota with Membership dns-brute ok +53 (wordlist 54)
  • admin.slack.com
  • administrator.slack.com
  • api.slack.com
  • app.slack.com
  • apps.slack.com
  • assets.slack.com
  • autoconfig.slack.com
  • autodiscover.slack.com
  • beta.slack.com
  • blog.slack.com
  • cdn.slack.com
  • cpanel.slack.com
  • demo.slack.com
  • dev.slack.com
  • dns1.slack.com
  • dns2.slack.com
  • docs.slack.com
  • email.slack.com
  • ftp.slack.com
  • help.slack.com
  • imap.slack.com
  • m.slack.com
  • mail2.slack.com
  • media.slack.com
  • mobile.slack.com
  • mx.slack.com
  • mx1.slack.com
  • mx2.slack.com
  • my.slack.com
  • new.slack.com
  • ns1.slack.com
  • ns2.slack.com
  • ns3.slack.com
  • old.slack.com
  • pop.slack.com
  • pop3.slack.com
  • portal.slack.com
  • remote.slack.com
  • secure.slack.com
  • shop.slack.com
  • smtp.slack.com
  • stage.slack.com
  • staging.slack.com
  • static.slack.com
  • status.slack.com
  • store.slack.com
  • support.slack.com
  • test.slack.com
  • vpn.slack.com
  • webdisk.slack.com
  • webmail.slack.com
  • whm.slack.com
  • www.slack.com
Email

Email Security Posture

SPF and DMARC presence and records for slack.com. DKIM requires a known selector and is not auto-discoverable.

SPF present
  • v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra.slack.com -all
DMARC present
  • v=DMARC1;p=reject;fo=1:d:s;pct=100;rua=mailto:dmarc_agg@vali.email,mailto:0e5a5c34@inbox.ondmarc.com;ruf=mailto:0e5a5c34@inbox.ondmarc.com
DKIM selector required

DKIM requires selector; not auto-discoverable

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