Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdoc.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 22:05:01 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt4.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 18.233.124.95
- 54.221.139.169
Mail Server IPs
- 172.253.62.27 ↩ bc-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1b ↩ bj-in-f27.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com 6 21600 3600 259200 300
Primary NS (mname)
ns-cloud-d1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
6
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-d3.googledomains.com
ns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
ns-cloud-d4.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:152.44.16.10 include:_spf.google.com include:customerspf.schoolmessenger.com include:spf.gaggle.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
google._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- _a6ikpizpd523bc1if43fjk252urxmih
- 59tw67hzlybb8ch26k18w60ndmpzfb57
- MS=ms56792459
- google-site-verification=JWL0Vy5VJJqAQYJMCjGdeCtZM_tmhZjMud36vsE_5TA
- adobe-idp-site-verification=22c201f90a64a683107069af3f5967128dba1e5fcfeb9f2a3cfb97082e389ea9
- have-i-been-pwned-verification=bf92ee744c94ac61169a626ba053249f
- xz7jb2htn5mbssc4vck6z5r0h3t9rxdt
- autodesk-domain-verification=SF5ZXZtGrLhLcsc4gNpw
- SPFv=spf1 ip4:152.44.16.10 include:_spf.google.com include:customerspf.schoolmessenger.com include:spf.gaggle.net -all
- apple-domain-verification=wUnWSBnQaeVYW4Kp
- formstack-domain-verification=59b0b374acf3ed24dd4722b50f1e94fd
- docusign=20863134-3957-4a43-9e1d-1a3cc72ec046
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