Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
posthog.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 23:33:55 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 216.150.1.1
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 142.250.102.26 ↩ rb-in-f26.1e100.net
- 2a00:1450:4025:402::1b ↩ rb-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
julissa.ns.cloudflare.com dns.cloudflare.com 2398892195 10000 2400 604800 1800
Primary NS (mname)
julissa.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398892195
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
julissa.ns.cloudflare.com
rory.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:mail.zendesk.com include:servers.mcsv.net include:mcsv.net include:spf.mandrillapp.com include:spf.mailjet.com include:amazonses.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; aspf=r; adkim=r; sp=reject;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
19 records- wiz-domain-verification=3357378f04c747f632241dede60682807fdd2f1cbf17eaad4433626cadba1d34
- google-site-verification=y_lIMB59lFcZyw-aDkPwQH04ErnkAuswbPDI48kj7NU
- stripe-verification=0758FA8B9CFF58AD6C7CA769A4CBCD1F538FD3CAE856ED865B600E0C85F8AF9C
- google-site-verification=rV-p0xIuoSPKEOsbXiFRdpuRNAIvkmvqUCMKQdQNiQQ
- warpstream-verification=W8ZSnRMODyyK7db-HsqH0g==
- google-site-verification=8iSexCUhAjrq9sdND8snbBMQkxgT1uPyuLn8qMKCC3g
- hubspot-developer-verification=NmM3ZGZjOGItMTFkNC00Y2JlLTk2OGMtNWI5NGRlNWE2MTk1
- hubspot-developer-verification=ZjBiZGU4ZWEtMmQzNS00YTIzLTg1NzktOWFhYmZhZWYyNGRj
- hubspot-developer-verification=MjAwNTY0MDEtNjg3Zi00ZDYyLWEwMmEtOWRlY2M4NGMwMWEx
- google-site-verification=HlrzEAPHS7VRZcGfvU39mhF86LLDPz-Nm88y6vEHSUk
- google-site-verification=JnVdTQN5QXDDrPw09cSFIRwc_hkmVQgwgpyuEUe3qgg
- cloudflare_dashboard_sso=bf5bb621cae6f03b04deaeb95a4fbb47
- google-site-verification=XcqIYCKBCZjObwHn5VVmsi92SLnaVx1XYruncLCUldM
- zapier-domain-verification-challenge=2d19d8f3-abea-4e65-9d76-afc2cfabbea2
- tiktok-developers-site-verification=lhlLSOG6nN8VhySQd9N00K8kezUO085W
- SPFv=spf1 include:_spf.google.com include:mail.zendesk.com include:servers.mcsv.net include:mcsv.net include:spf.mandrillapp.com include:spf.mailjet.com include:amazonses.com -all
- xmpYvq0qq2jlJ41DdaHeshLvvw
- google-site-verification=2aAHS6wwKXEihn7xmDkURVERdCE1Ud1oDL257IR1JEY
- google-site-verification=OzoiNToqd-3naAZ8v66RAlu4GFLD83oLYTAFuVkhDJw
Full email verification for posthog.com
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