DNS Report: slack.com

Generated: 2026-08-08T18:16:12-05:00

84/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/304 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
OKDNSSEC chain15/15DS and DNSKEY detected.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/205 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5587 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers16/354 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: ec2-18-169-61-189.eu-west-2.compute.amazonaws.com
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
18.169.61.189
18.134.215.41
18.169.120.191
18.168.172.238
AAAA
CNAME
MX
10 aspmx3.googlemail.com.
10 aspmx2.googlemail.com.
1 aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
TXT
"spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632"
"google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE"
"google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ"
"google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE"
"google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k"
"google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ"
"_0vidyxobp6x350odqhb4fo7fdxhmtq3"
"hubspot-developer-verification=OTE4NzYxYTgtMDUwZi00MzgzLTk2YTUtZDAwNjBlODg1MWM0"
"v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra.slack.com -all"
"google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk"
"google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc"
"OSSRH-54733"
NS
ns-1901.awsdns-45.co.uk.
ns-1493.awsdns-58.org.
ns-166.awsdns-20.com.
ns-606.awsdns-11.net.
SOA
ns-1493.awsdns-58.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 300
CAA
0 iodef "mailto:hostmaster@slack-corp.com"
0 issue "digicert.com; account=455b15ed272bed097725c6ea50e89921fc57379c5338a29305c05771df65fff1"
0 issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1532134906"
DS
296 13 2 601D7EC07E7DEE6E1AB6A3E5B2DA170F8353375FEA63AF2B732FAA5A 22898EA0
DNSKEY
256 3 13 P/Hsnb0J0nqOTFMO0dOnrnsnJWV2cydk9qDu44N7tusPRaRPxpgAyw2o z9TAYp/S/mmzZ6lFARRZ7fPdNw7bHw==
256 3 13 AqmgPgPFaJ3d2JcFirBeGSoSC1OwGK32/9T8TxUCmJ/66Ll0ICwHZrkS +irf9lLT+rprsHTieLknV6oOV2ckLw==
257 3 13 yEle+c4KxMSOtdzZSLZ5CPduOhcE/l2nrAguCwDCP8iZPEhF/HDaMX76 iMBsA7PLNdGyOtw/i8IHH5QYfucdEw==
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP