IPv4 Addresses
rackset.com. 300 IN A 104.21.12.106 rackset.com. 300 IN A 172.67.194.28
IPv6 Addresses
rackset.com. 300 IN AAAA 2606:4700:3033:0:0:0:AC43:C21C rackset.com. 300 IN AAAA 2606:4700:3035:0:0:0:6815:C6A
Name Servers
rackset.com. 396 IN NS augustus.ns.cloudflare.com. rackset.com. 396 IN NS vita.ns.cloudflare.com.
Mail Servers
rackset.com. 300 IN MX 1 aspmx.l.google.com. rackset.com. 300 IN MX 5 alt1.aspmx.l.google.com. rackset.com. 300 IN MX 5 alt2.aspmx.l.google.com.
SOA Details
rackset.com. 1200 IN SOA augustus.ns.cloudflare.com. dns.cloudflare.com. 2418576526 10000 2400 604800 1800
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
rackset.com. 300 IN DMARC v=DMARC1; p=quarantine; rua=mailto:[email protected]
DKIM
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | a |
—
|
|
|
| + Pass | mx |
—
|
|
|
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| ~ Softfail | all |
—
|
|
rackset.com. 300 IN TXT "v=spf1 include:_spf.google.com a mx ip4:157.90.105.115 ip4:188.40.179.204 ~all"
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).
Text Content
rackset.com. 300 IN TXT "google-site-verification=LmkjASYa-Scy1w2VHXCp2Mhojy4OIhSSmlwYB4ysqVQ" rackset.com. 300 IN TXT "780affad8e7df811d474a23b76e8aa9dc046ce687f036b75167570be3e2a46a1"