IPv4 Addresses
rackspeed.io. 300 IN A 185.172.125.96
IPv6 Addresses
rackspeed.io. 300 IN AAAA 2A0B:2300:0:2:0:0:0:2
Name Servers
rackspeed.io. 1200 IN NS ns.rackspeed-dns.com. rackspeed.io. 1200 IN NS ns.rackspeed-dns.de. rackspeed.io. 1200 IN NS ns.rackspeed-dns.eu. rackspeed.io. 1200 IN NS ns.rackspeed-dns.net.
SOA Details
rackspeed.io. 300 IN SOA ns.rackspeed-dns.de. info.rackspeed.de. 2026043003 3600 600 1209600 600
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.
rackspeed.io. 300 IN DMARC v=DMARC1; p=quarantine; adkim=s; aspf=s
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 | a |
—
|
|
|
| + Pass | mx |
—
|
|
|
| - Fail | all |
—
|
|
rackspeed.io. 300 IN TXT "v=spf1 +a +mx -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).