IPv4 Addresses
mathematricks.fr. 300 IN A 104.21.9.129 mathematricks.fr. 300 IN A 172.67.130.222
IPv6 Addresses
mathematricks.fr. 300 IN AAAA 2606:4700:3030:0:0:0:AC43:82DE mathematricks.fr. 300 IN AAAA 2606:4700:3031:0:0:0:6815:981
Name Servers
mathematricks.fr. 1200 IN NS curt.ns.cloudflare.com. mathematricks.fr. 1200 IN NS reza.ns.cloudflare.com.
Mail Servers
mathematricks.fr. 300 IN MX 42 route3.mx.cloudflare.net. mathematricks.fr. 300 IN MX 67 route2.mx.cloudflare.net. mathematricks.fr. 300 IN MX 83 route1.mx.cloudflare.net.
SOA Details
mathematricks.fr. 1200 IN SOA curt.ns.cloudflare.com. dns.cloudflare.com. 2403231568 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.
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.
mathematricks.fr. 300 IN DMARC v=DMARC1; p=none; mathematricks.fr. 300 IN DMARC v=DMARC1; p=none; 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 | include |
|
||
| ~ Softfail | all |
—
|
|
mathematricks.fr. 300 IN TXT "v=spf1 include:_spf.google.com include:_spf.mx.cloudflare.net ~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
mathematricks.fr. 300 IN TXT "brevo-code:6cdc68660385a12182e0f7f8db5eb2fa" mathematricks.fr. 300 IN TXT "hosting-site=mathema-tricks"