Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
riverdale.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 15:39:33 UTC · ↺ Refresh
MX Hostnames
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
A / AAAA Records
- 104.26.8.216
- 104.26.9.216
- 172.67.72.22
- 2606:4700:20::681a:8d8
- 2606:4700:20::ac43:4816
- 2606:4700:20::681a:9d8
Mail Server IPs
- 173.194.76.26 ↩ ws-in-f26.1e100.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)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
SOA Record
Raw SOA
aaron.ns.cloudflare.com dns.cloudflare.com 2398057848 10000 2400 604800 1800
Primary NS (mname)
aaron.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398057848
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rosalyn.ns.cloudflare.com
aaron.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:74.125.148.0/22 ip4:198.62.116.1/24 include:_spf.google.com include:spf.constantcontact.com include:customerspf.schoolmessenger.com include:nexiwave.com include:spf.ravennasolutions.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 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
11 records- google-site-verification=evud7pKE3AUtB4in-L19Kl--79ESrt9OdFoxXUvE-Gk
- openai-domain-verification=dv-muiTi1NxxImzVyRA3vMG3lr4
- s35hrljuvkdo9ggrjj1spvngfo
- SPFv=spf1 ip4:74.125.148.0/22 ip4:198.62.116.1/24 include:_spf.google.com include:spf.constantcontact.com include:customerspf.schoolmessenger.com include:nexiwave.com include:spf.ravennasolutions.com ~all
- wvdntzljblb2rcwdbw4v9sy93vb2ymn5
- 3nzgkdp0pj6tyq86pmzc050dxz79dqht
- 5rcmpv5mgw1pv2txsgrh7bc3ndgj09v3
- 8340884797
- adobe-idp-site-verification=b7cd7dd1adf725ce7b6d712ec7af0eb6b41269b29cab1a508f20acb7f2720271
- apple-domain-verification=1Qt92ELPITjp2hPg
- fskrhqp2y9s0rdt3j644nzbp855d43n3
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