Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mathnasium.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 06:32:37 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 104.26.8.138 (no PTR)
- 104.26.9.138
- 172.67.71.90
- 2606:4700:20::681a:98a
- 2606:4700:20::ac43:475a
- 2606:4700:20::681a:88a
Mail Server IPs
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 142.251.111.26 ↩ bk-in-f26.1e100.net
- 172.253.63.26 ↩ bi-in-f26.1e100.net
- 142.250.31.27 ↩ bj-in-f27.1e100.net
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1b ↩ bj-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
SOA Record
Raw SOA
arya.ns.cloudflare.com dns.cloudflare.com 2400130047 10000 2400 604800 1800
Primary NS (mname)
arya.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400130047
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
pablo.ns.cloudflare.com
arya.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:spf.protection.outlook.com ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 include:docebosaas.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- 005-018-021
- Ck8-Mg4-Ey1
- MS=562B5FC14C611CD60D63A9575A62024A1D513EDA
- apple-domain-verification=aD-BMPVuE77c_JtTHOUC8Jtoo75JemIbC6J-A3-DWvA
- apple-domain-verification=gPZ3x0Opyj91HtWN
- google-site-verification=830RJc_VWyQaLXJZT1KTsdh_1Uc56VMJCPPzUTIN068
- google-site-verification=QurODnsbnD5G4bCiARg5YYzmmHdr31BktF2_w6uATCc
- google-site-verification=_bKQSZHBGWA3L5DYscl9Tk0IuaIo5D8km80Qrzk58Bo
- google-site-verification=iDulZzq2MmhqoZRqG9UzEHq5vSTC3AsF8OFKfI_AP2I
- include:u31398412.wl163.sendgrid.net -all
- mandrill_verify.DASMTtH6hFJYRm3zrFlVvA
- SPFv=spf1 include:_spf.google.com include:spf.protection.outlook.com ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 include:docebosaas.com -all
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