`mail.studfinder.app`

DNSSEC	⚠️ Not signed
A	158.106.138.148^{🇺🇸 PRIVATESYSTEMS158.106.136.0/21 PrivateSystems Networks TX}
		PTR	`cp08-ga.privatesystems.net`
MX	`feedback-smtp.us-east-1.amazonses.com` ⭐
		A	3.218.134.115^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-218-134-115.compute-1.amazonaws.com`
		A	18.235.76.96^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-235-76-96.compute-1.amazonaws.com`
		A	34.192.233.193^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
			PTR	`ec2-34-192-233-193.compute-1.amazonaws.com`

`studfinder.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:57b5^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:aa81^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.181^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.129^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elliott.ns.cloudflare.com` ⭐
NS	`savanna.ns.cloudflare.com`
MX	`mail.studfinder.app` ⭐
TXT	`google-site-verification=ZaFAl9r8UaVCeV57sG96EsKg7O9-VSxfXmK6UT0Ei98`
TXT	`google-site-verification=x2P_YtYtnGMBu0gU7JWaFUzPq9gvCvWvBWBdqEbbb0M`
TXT	`v=spf1 ip4:158.106.138.148 include:amazonses.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.181, 172.67.170.129
		IPv6 hints	2606:4700:3037::6815:57b5, 2606:4700:3037::ac43:aa81
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=54, name=cloudflare-ech.com
SOA	`elliott.ns.cloudflare.com`dns@cloudflare.com serial=2402275602

MX for

studfinder.app

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DNS History

2 records (2 active, 0 former)

●MXfeedback-smtp.us-east-1.amazonses.com2026-04-21 → 2026-04-24 · 2 obs

● 2026-04-21 22:48:38
● 2026-04-24 11:00:44

●A158.106.138.1482026-04-21 → 2026-04-24 · 2 obs

● 2026-04-21 22:48:38
● 2026-04-24 11:00:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
studfinder.app	savanna.ns.cloudflare.com, elliott.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.228

NS records: savanna.ns.cloudflare.com, elliott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studfinder.app (unsigned zone)

⏱️ Timing

Total: 377ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`158.106.138.148`
MX	1	`feedback-smtp.us-east-1.amazonses.com (p`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Mail Server Role

mail.studfinder.app serves as the mail server for studfinder.app.

IP Addresses

mail.studfinder.app points to IP number 158.106.138.148.

For instance, other host names _dc-mx.f80178aa9394.subir.me, fuentessoft.com, _dc-mx.eb4fd9fe7f16.costnow.com, mail.jaimeandres.es and _dc-mx.8fdf4d69f3ed.pureairspace.com share IP numbers with mail.studfinder.app.

Mail Servers

mail.studfinder.app is handled by a single mail server, feedback-smtp.us-east-1.amazonses.com.

mail.studfinder.app shares the same mail server setup as other domains, for instance www.bitcoinf.org, mail.diffchecker.com, box.vaduva.link, mail.greenbayymca.org and mail.reiform.com.

mail.studfinder.app shares mail servers with other domains at least partially; for instance manicmerch.com, metalnews.com, hottask.com, quickzone.in and creativescapes.us.

these mail servers commonly appear with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, inbound-smtp.us-east-1.amazonaws.com and smtp.google.com.

Host name feedback-smtp.us-east-1.amazonses.com points to three IP numbers: 3.218.134.115, 18.235.76.96 and 34.192.233.193.

mail.studfinder.app - robtex.com