Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
arstechnica.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 09:58:20 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 18.189.173.158
- 3.149.159.224
Mail Server IPs
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.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-x1a.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns-1285.awsdns-32.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1285.awsdns-32.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-493.awsdns-61.com
ns-783.awsdns-33.net
ns-1285.awsdns-32.org
ns-2008.awsdns-59.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.arstechnica.com._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
google._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
9 records- facebook-domain-verification=qptjyerza2q11uv3fe6aay6hbsncr8
- google-site-verification=HdFEloOqFNJZvQWa7SK2BRmWVt8aVnPuagqXZ-C2U5U
- google-site-verification=OtVm0j4Rqs4y10N827uQ_n8ZnMtO0vfqw1k5NCzaJvo
- google-site-verification=Xt1q2fpVK6qREDXADvlLz2O5pvmUz9G_xxoGdeEnrH0
- google-site-verification=XuFuLW59WRoAbzeQ-wsF0JwpaeYwtdzRmtiktfi3Pmc
- google-site-verification=nso4GHYIGZwo4gB6AoUxzJWkxOUdx83kbGeREAxnv3A
- loaderio=2fd6086b1c3ba926ae36db37131123f7
- SPFv=spf1 include:_u.arstechnica.com._spf.smart.ondmarc.com ~all
- yahoo-verification-key=bP+HO9s82IBxbotbnF/O1nN4Jo4VfFXq5JNFAPCK8+o=
Full email verification for arstechnica.com
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