Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
johnston.k12.nc.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 06:21:42 UTC · ↺ Refresh
MX Hostnames
- aspmx4.googlemail.com
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx5.googlemail.com
MX Priorities
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx3.googlemail.com: 10
- alt2.aspmx.l.google.com: 5
- aspmx5.googlemail.com: 10
- aspmx4.googlemail.com: 10
A / AAAA Records
- 34.238.178.141 ↩ ec2-34-238-178-141.compute-1.amazonaws.com
Mail Server IPs
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns-01.mcnc.org hostmaster.ncren.net 2026031702 14400 7200 1209600 14400
Primary NS (mname)
ns-01.mcnc.org
Admin Email (rname)
hostmaster@ncren.net
Serial
2026031702
Refresh
14400s
Retry
7200s
Expire
1209600s
Minimum TTL
14400s
Nameservers (NS)
ns-01.mcnc.org
ns-02.mcnc.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:152.26.73.65 include:sendgrid.net include:_spf.google.com include:mailgun.org include:_spf.bbnotify.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; [email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → [email protected]
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
10 records- autodesk-domain-verification=9Uk31DVdxWjXVDE8tIdR
- google-site-verification=KrEiyFIoAeR_RsC9BsKL0rr0vK__7PZxNYSkWOE7yKQ
- MS=ms149801491
- openai-domain-verification=dv-1WmG1bFae1izyVZC93lEaZXh
- ZOOM_verify_Vv_ffDM3SDug480_KviWVQ
- 6hmnhvj5nfk1mdr6bld4npu77r
- SPFv=spf1 ip4:152.26.73.65 include:sendgrid.net include:_spf.google.com include:mailgun.org include:_spf.bbnotify.net ~all
- adobe-idp-site-verification=0a62f4ecf9f7a640f6716bfe983811e072a8e27cb826bba6e3767c4a68335c37
- 1qmf62eufpovvqksrf29fsmtf4
- 1tl689ki6924ignjacrjm6ssk5
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for johnston.k12.nc.us
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits