massmailer.io
Observed Aug 16, 2026, 14:25 UTC (4h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Email byGoogle Workspace
Google WorkspaceSecured byGoDaddy.com
Also usesGlobalSign
GlobalSign1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat massmailer.io actually stands on - every host below is a signed observation
massmailer.io
A / AAAA
192.124.249.27
unattributedserves the site
NS
ns37.domaincontrol.comns38.domaincontrol.com
domaincontrol.comanswers its DNS
MX
aspmx.l.google.comalt2.aspmx.l.google.comalt1.aspmx.l.google.comalt4.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
massmailer.io
GoDaddy.comissued its certificate
DNS Records
A 1
192.124.249.27
MX 5
1aspmx.l.google.com5alt2.aspmx.l.google.com5alt1.aspmx.l.google.com10alt4.aspmx.l.google.com10alt3.aspmx.l.google.com
TXT 5
_globalsign-domain-verification=K_29e3iu0R1RDBoKHoVjWRXaKe1VtjZpZNHTTE-6gu_globalsign-domain-verification=N9WhSZ2x7U7erTEVNtEYaqEnZaEw61yj47CbDQFrqJ_globalsign-domain-verification=Y5SF_vJir-qjhEekwraezMrwKDA0S_tq1b82mjPhzJqpx61r0zcyhw2csy92hjqkj0bl3tm71cv=spf1 ip4:168.245.12.51 a mx include:_spf.google.com include:sendgrid.net include:_spf.salesforce.com include:email.freshdesk.com include:email.chargebee.com -all
NS 2
ns37.domaincontrol.comns38.domaincontrol.com
SOA 1
ns37.domaincontrol.com dns.jomax.net
DMARC_RECORDS 1
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.net;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
massmailer.io |
C=US, O=GoDaddy.com, CN=GoDaddy TLS Intermediate CA DV - R1v1 | Tue, 03 Nov 2026 16:55:23 +0000 |
GoDaddy TLS Intermediate CA DV - R1v1 |
C=US, O=GoDaddy.com, CN=GoDaddy TLS Root CA - R1 | Fri, 24 Aug 2040 11:59:59 +0000 |
GoDaddy TLS Root CA - R1 |
C=US, ST=Arizona, L=Scottsdale, O=GoDaddy.com, Inc., CN=Go Daddy Root Certificate Authority - G2 | Thu, 31 Dec 2037 23:59:59 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_e4bc583f72671219- Output Hash
8bd0fb91b5946817721840e4fca5de489677567fc1acd13fe2497d64667104c6- Signature
ed25519:f400c6f9cc15deafb34edf1c8bd1c77b5d37c893ad9597a88959b117b1985d3b4169625d163360576aef09221ee7d2d3961dbf8861a94c11da88093ab6c4050f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast