Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
backstage.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 21:06:26 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- aspmx2.googlemail.com
- alt1.aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 104.18.0.191 (no PTR)
- 104.18.1.191
- 2606:4700::6812:1bf
- 2606:4700::6812:bf
Mail Server IPs
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
gordon.ns.cloudflare.com dns.cloudflare.com 2398060939 10000 2400 604800 1800
Primary NS (mname)
gordon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398060939
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lorna.ns.cloudflare.com
gordon.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:sendgrid.net include:200838.spf10.hubspotemail.net include:usb._netblocks.mimecast.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- facebook-domain-verification=tfrukj8496bgg1o42kmpc40th4z942
- google-site-verification=4Hkwz3LqoqVG22NbZt10IR-nMKV67xQ9WIH_nwxhi6w
- google-site-verification=ExupdI8FVJew_V5Tgvq8MZyMYaBHaDiMPIFJfM_01Lg
- google-site-verification=gGCA-GZld7UBV_5N7KT2nqSlTuFSpveh2x3COoXr6Kg
- have-i-been-pwned-verification=dweb_fissz58sf592w1737vl668cn
- knowbe4-site-verification=1a37c5300d817ca6fe804cbffab095d2
- tiktok-developers-site-verification=LrVcUajwQn1tHjNwVufNsyRZd7HkN0Rn
- SPFv=spf1 include:_spf.google.com include:sendgrid.net include:200838.spf10.hubspotemail.net include:usb._netblocks.mimecast.com ~all
- virtru-site-verify=QpSIVpWWVpwh41DRJS2IqKIb8VIIaYyFGHLHJQvi
- ZOOM_verify_WWo9Vq0FStCNO5Fc0yHE2Q
- ahrefs-site-verification_daea9455681f8da6db2f944ba7f5363fa5be9d353c3466531d940214e6a93ba8
- apple-domain-verification=t0sNIX3-cDuKVFcU-oW1ngYS4JE0kfLsFFKcRufEYDk
- atlassian-domain-verification=ipn7NLF7wMzuwIs8ujnaBybHdIjEZTEI3anqpMnhNxpkW19frwcKzDe4tvRvESZn
Full email verification for backstage.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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