Domain Overview
DNS: ✓ 8h ago
Checker: ✓ 8h ago
tuition.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 03:57:04 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- aspmx.l.google.com
- aspmx2.googlemail.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 199.60.103.12 (no PTR)
- 199.60.103.112 (no PTR)
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
SOA Record
Raw SOA
ns-1728.awsdns-24.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1728.awsdns-24.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1158.awsdns-16.org
ns-151.awsdns-18.com
ns-1728.awsdns-24.co.uk
ns-974.awsdns-57.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendgrid.net include:46526011.spf08.hubspotemail.net include:servers.mcsv.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._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
11 records- SPFv=spf1 include:_spf.google.com include:mail.zendesk.com include:sendgrid.net include:46526011.spf08.hubspotemail.net include:servers.mcsv.net -all
- MS=014292EEDCF0E2F850FEB497C70EC065B285A063
- google-site-verification=-uu8DNHbnYYwlMyV-EM6c3PUQla3GxyKRme7zsMsP9M
- google-site-verification=1CfG-I4QsQS1otCuOD26Tnx8SPjvARNxaLDhJPfI6n8
- google-site-verification=HfK-0Z9gTFIbACyQD6PhkRgp7LTfKpbHiXLUvSX-N7U
- google-site-verification=PKryjdPF3JTLO51ksamdCeUAPfA2qqi4MmtPfmpOnFw
- google-site-verification=UEQ4tQTew13ITzdhzNaINNI3VrSxYMkEPQBFrmuDN3k
- google-site-verification=cCYLm9xrbhosbRSoIkdITWtj6JAiamNihNwkRProTUo
- google-site-verification=f9AMGR8zpw6-r_JsNgNtJXmTh5ofyL7Ev5CRMcdyA1c
- jamf-site-verification=q8lbS723rBnrgDTSXSY3iQ
- knowbe4-site-verification=86b31a0c73adbccbbe7158755dcef3d5
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