`openwhenletters.app`

DNSSEC	⚠️ Not signed
A	216.150.1.129^{🇨🇦 Amazon216.150.1.0/24 EC2 Prefix}
A	216.150.16.193^{🇨🇦 Amazon216.150.16.0/24 EC2 Prefix}
NS	`ns1.vercel-dns.com` ⭐
		A	2620:4d:4000:6259:7:13:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p13.nsone.net`
		A	198.51.44.13^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p13.nsone.net`
NS	`ns2.vercel-dns.com`
		A	2a00:edc0:6259:7:13::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p13.nsone.net`
		A	198.51.45.13^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p13.nsone.net`
TXT	`google-site-verification=_8-H3GFo7zGF-GL_Ylv6XiE1pndEcf40aoMet3jfVsQ`
SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1768598405

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

openwhenletters.app

Similar names

phonenewsletter.com

DNS History

8 records (4 active, 4 former)

●NSns1.vercel-dns.com2026-04-16 → 2026-04-29 · 2 obs

● 2026-04-16 19:38:42
● 2026-04-29 10:04:36

●NSns2.vercel-dns.com2026-04-16 → 2026-04-29 · 2 obs

● 2026-04-16 19:38:42
● 2026-04-29 10:04:36

○A216.150.1.12026-04-25 → 2026-04-25 · 3 obs

○ 2026-04-25 01:26:08
● 2026-04-25 22:58:38
○ 2026-04-29 10:04:36

●A216.150.1.1292026-04-29 → 2026-04-29 · 2 obs

○ 2026-04-25 22:58:38
● 2026-04-29 10:04:36

○A216.150.16.12026-04-16 → 2026-04-16 · 4 obs

● 2026-04-16 19:38:42
● 2026-04-16 23:38:52
○ 2026-04-25 01:26:08
○ 2026-04-29 10:04:36

○A216.150.16.1292026-04-16 → 2026-04-25 · 5 obs

● 2026-04-16 19:38:42
○ 2026-04-16 23:38:52
● 2026-04-25 01:26:08
○ 2026-04-25 22:58:38
○ 2026-04-29 10:04:36

●A216.150.16.1932026-04-25 → 2026-04-29 · 3 obs

○ 2026-04-16 23:38:52
● 2026-04-25 01:26:08
● 2026-04-29 10:04:36

○A216.150.16.652026-04-16 → 2026-04-16 · 4 obs

○ 2026-04-16 19:38:42
● 2026-04-16 23:38:52
○ 2026-04-25 01:26:08
○ 2026-04-29 10:04:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
openwhenletters.app	ns2.vercel-dns.com, ns1.vercel-dns.com	-

✅ Authoritative Response

Server:198.51.44.13

NS records: ns2.vercel-dns.com, ns1.vercel-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openwhenletters.app (unsigned zone)

⏱️ Timing

Total: 586ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.150.1.65, 216.150.16.129`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
TXT	1	`google-site-verification=_8-H3GFo7zGF-GL`
SOA	1	`ns1.vercel-dns.com hostmaster.nsone.net`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

openwhenletters.app has two IP numbers: 216.150.1.129 and 216.150.16.193.

Other host names, for instance alipro.digital, bonsplans.eu, colorendo.com, newrivercafe.com and c1c1a41528a6d270.vercel-dns-016.com share IP numbers with openwhenletters.app.

Name Servers

openwhenletters.app's delegation uses two name servers: ns1.vercel-dns.com and ns2.vercel-dns.com.

openwhenletters.app uses the same name server setup as other domains, such as nicegroupofpeople.com, admission-writer.com, wasipi.com, auraoffice.xyz and qreserve.net.

openwhenletters.app at least partially shares name servers with other domains, including orkhann.com, itatec.com.py, julklappslekar.se, pesamoni.com and vercel.com.

these name servers are commonly used alongside the name servers c.zeit-world.org, ns3.hostmar.com, e.zeit-world.com, f.zeit-world.net and b.zeit-world.co.uk.

Host names with two IPs:

ns1.vercel-dns.com points to 2620:4d:4000:6259:7:13:0:1 and 198.51.44.13

ns2.vercel-dns.com points to 2a00:edc0:6259:7:13::2 and 198.51.45.13

openwhenletters.app - robtex.com