Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
burlingtonconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 13:34:07 UTC · ↺ Refresh
MX Hostnames
- burlingtonconstruction-com.mail.protection.outlook.com
MX Priorities
- burlingtonconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 35.212.28.95 ↩ 95.28.212.35.bc.googleusercontent.com
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns13.worldnic.com namehost\@worldnic.com 124112217 10800 3600 604800 3600
Primary NS (mname)
ns13.worldnic.com
Admin Email (rname)
namehost\@worldnic@com
Serial
124112217
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns13.worldnic.com
ns14.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:173.186.139.178 ip4:173.186.139.186 ip4:216.55.67.238 ip4:205.134.234.242 ip4:155.212.11.148 ip4:209.235.11.13 ip4:208.75.123.0/24 ip4:147.160.167.0/26 include:in.constantcontact.com include:in.confirmedcc.com include:e2ma.net include:email-od.com include:servers.mcsv.net include:_spf.psm.knowbe4.com include:psm.knowbe4.com include:spf.protection.outlook.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=r; fo=1; adkim=r; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- autodesk-domain-verification=WHIV0N2qFyDmV8Remk5l
- knowbe4-site-verification=d046ce6961480577882c26e50ded0e09
- SPFv=spf1 ip4:173.186.139.178 ip4:173.186.139.186 ip4:216.55.67.238 ip4:205.134.234.242 ip4:155.212.11.148 ip4:209.235.11.13 ip4:208.75.123.0/24 ip4:147.160.167.0/26 include:in.constantcontact.com include:in.confirmedcc.com include:e2ma.net include:email-od.com include:servers.mcsv.net include:_spf.psm.knowbe4.com include:psm.knowbe4.com include:spf.protection.outlook.com -all
- MS=ms32113239
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 burlingtonconstruction.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits