Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
devhub.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 02:30:31 UTC · ↺ Refresh
MX Hostnames
- ASPMX.L.GOOGLE.com
- ASPMX3.GOOGLEMAIL.com
- ALT2.ASPMX.L.GOOGLE.com
- ALT1.ASPMX.L.GOOGLE.com
- ASPMX2.GOOGLEMAIL.com
MX Priorities
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 166.78.40.223 (no PTR)
Mail Server IPs
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns.rackspace.com devs.devhub.com 1770308935 21600 3600 1814400 300
Primary NS (mname)
ns.rackspace.com
Admin Email (rname)
devs@devhub.com
Serial
1770308935
Refresh
21600s
Retry
3600s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
dns2.stabletransit.com
dns1.stabletransit.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.google.com include:support.zendesk.com include:sendgrid.net include:45592813.spf05.hubspotemail.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=50
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 3 found
google._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
3 records- atlassian-domain-verification=hE4Jb0LE5CCDaHGiWUMPRv1GHvBeuKyGosGDjDsFXBwsCu72wbZAiUTyrVelqihQ
- SPFv=spf1 a mx include:_spf.google.com include:support.zendesk.com include:sendgrid.net include:45592813.spf05.hubspotemail.net ~all
- google-site-verification=88bmU8VeoToI1SX7wLPbgwsshOdS1JVO4nmMoqopPd0
Full email verification for devhub.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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