Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optibus.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 06:11:28 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 167.172.108.186
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
SOA Record
Raw SOA
ns-162.awsdns-20.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-162.awsdns-20.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-162.awsdns-20.com
ns-1859.awsdns-40.co.uk
ns-863.awsdns-43.net
ns-1419.awsdns-49.org
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.fortimailcloud.com include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:stspg-customer.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._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
16 records- SPFv=spf1 include:_spf.fortimailcloud.com include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:stspg-customer.com -all
- Foxit-domain-verification=8b21304eafb113cfc9aede22f6d02fd9
- mongodb-site-verification=4Ubl3ZHBz8R18S9KMZTswlqbujXJC4cT
- google-site-verification=-lkcNcL25DG31EhrRmd2E94MuVItzixE-1oyC1bLRA8
- apple-domain-verification=HP9nlHXcZLeJRh13
- d74cb35426f3d808325876f45b69dbf1
- cloudhealth=109f6d61-c947-4aa0-97e3-463231d67e8d
- ca3-008ff244df3a48abb6e3c9791b6ad54b
- D9A34DF7E4
- google-site-verification=mydwHvncvOFb5sm3Bx6nKsfiqckZOQ0_Vb0KDMosZtM
- google-site-verification=koWC1kBxjea8WduTs7sk3rlYDvmwUTtlL-OjfOfG79c
- status-page-domain-verification=ym1k8m7jlh74
- google-site-verification=woo4pryVVtQu6jMZUNt9FLYCsI4OJUBXDYQjEK7LZp4
- atlassian-domain-verification=6aMIn57J5N3CtaW3EylO3S/v/4OamMbQfNSE0rOw8s6lA6J2cxSptjDdoFLHUem0
- google-site-verification=hm228ZoGeh22L32iP_25KJopcTqc3maMXFqPYvyChOI
- reachdesk-verification=EIo7016MgebIfIinUh9IuDJjEJQ3uqrijBIwps1uQnwcUHgaYiWz8x8OYxcln2Vn
Full email verification for optibus.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits