Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackcatinformatics.ca
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 13:27:41 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.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
- 172.66.43.113
- 172.66.40.143
- 2606:4700:3108::ac42:2b71
- 2606:4700:3108::ac42:288f
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.111.26 ↩ bk-in-f26.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
SOA Record
Raw SOA
jean.ns.cloudflare.com dns.cloudflare.com 2399982390 10000 2400 604800 1800
Primary NS (mname)
jean.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399982390
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
woz.ns.cloudflare.com
jean.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.blackcat.ca ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; aspf=s; adkim=s; fo=1; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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: 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
4 records- SPFv=spf1 include:spf.blackcat.ca ~all
- bw=o17snqNGzPDe9xZhIN4CTGNqd99DuzgS60Qz5FEd4Xxy
- firebase=lillith-c578b
- google-site-verification=BUib1n3gRl9P1-i8eZxKEWTfZ3g8IqmZ6zrFnvi1gLs
Full email verification for blackcatinformatics.ca
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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