Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lecturio.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 04:04:39 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- aspmx2.googlemail.com
- alt2.aspmx.l.google.com
- aspmx3.googlemail.com
MX Priorities
- alt2.aspmx.l.google.com: 20
- aspmx.l.google.com: 10
- aspmx3.googlemail.com: 30
- aspmx2.googlemail.com: 30
- alt1.aspmx.l.google.com: 20
A / AAAA Records
- 3.70.4.233 ↩ ec2-3-70-4-233.eu-central-1.compute.amazonaws.com
- 3.71.209.162 ↩ ec2-3-71-209-162.eu-central-1.compute.amazonaws.com
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.163.26 ↩ wv-in-f26.1e100.net
- 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
ns10.digicertdns.com dns.digicertdns.com 2009010175 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010175
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns1.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns3.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:mail.zendesk.com include:amazonses.com include:_spf.salesforce.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=25;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 25% of failing messages only
DKIM Selectors
✓ 4 found
google._domainkey
k1._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
10 records- google-site-verification=Ssa94101QNGyNA46URCz_TogJ13qoIkIsBIR8HO9nlc
- google-site-verification=UKreaPk7hrzaJzDYT5of8s31Mv1TWcfDeYIWpGND_hE
- google-site-verification=ox56Uhz64xzslAJZgZcoHT6zAxGM4YCqKuTFw9FGYEM
- pardot1016492=6412ef8c6a4148222094b30f6f0b7bf9c1894c19f528d6cdae7ad1d1ed579b2d
- amazonses:bzWEUMvLxH1IrZmtLIODjss1DTFutiqH4HhgrJm1lcc=
- google-site-verification=Zmfp_dCnQAsCkXa1oHGzg8_nFrKF-_12Pmzhzghx9Co
- SPFv=spf1 include:_spf.google.com include:mail.zendesk.com include:amazonses.com include:_spf.salesforce.com ~all
- facebook-domain-verification=npi1z9zxc95qr3m02mh7e473eoeqxl
- cursor-domain-verification-w4jcqk=NQLzZRagbi8RNmMlidSHcv2iB
- 7672FFADAE
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