🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`studygroups.app`

	DNSSEC	⚠️ Not signed
	A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
	A	216.198.79.65^{Amazon216.198.79.0/24 EC2 Prefix}
	NS	`ns1.vercel-dns.com` ⭐
	NS	`ns2.vercel-dns.com`
	TXT	`firebase=xprize-53966`
	TXT	`v=spf1 include:_spf.firebasemail.com ~all`
	SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1785298567

`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

studygroups.hu

studygroups.ca

studygroups.net

studygroups.in

studygroups.dev

studygroups.org

studygroups.ch

studygroups.ai

studygroups.ph

studygroups.app

studygroups.com

DNS History

6 records (4 active, 2 former)

●NSns1.vercel-dns.com2026-09-29 → 2026-11-05 · 2 obs

● 2026-09-29 16:29:18
● 2026-11-05 11:41:02

●NSns2.vercel-dns.com2026-09-29 → 2026-11-05 · 2 obs

● 2026-09-29 16:29:18
● 2026-11-05 11:41:02

●A216.198.79.12026-09-29 → 2026-11-05 · 10 obs

● 2026-09-29 16:29:18
○ 2026-10-02 23:39:34
● 2026-10-06 16:34:28
○ 2026-10-06 17:59:54
● 2026-10-07 07:35:30
○ 2026-10-17 18:04:20
● 2026-10-18 14:21:30
○ 2026-10-18 19:12:28
● 2026-10-22 02:54:00
● 2026-11-05 11:41:02

●A216.198.79.652026-10-06 → 2026-11-05 · 7 obs

○ 2026-10-06 16:34:28
● 2026-10-06 17:59:54
○ 2026-10-07 07:35:30
● 2026-10-17 18:04:20
○ 2026-10-18 19:12:28
● 2026-10-27 02:48:22
● 2026-11-05 11:41:02

○A64.29.17.12026-10-02 → 2026-10-18 · 8 obs

○ 2026-09-29 16:29:18
● 2026-10-02 23:39:34
○ 2026-10-06 17:59:54
● 2026-10-17 18:04:20
○ 2026-10-18 14:21:30
● 2026-10-18 19:12:28
○ 2026-10-27 02:48:22
○ 2026-11-05 11:41:02

○A64.29.17.652026-09-29 → 2026-10-18 · 7 obs

● 2026-09-29 16:29:18
○ 2026-10-06 16:34:28
● 2026-10-06 17:59:54
○ 2026-10-17 18:04:20
● 2026-10-18 19:12:28
○ 2026-10-22 02:54:00
○ 2026-11-05 11:41:02

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:198.51.44.13

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 1358ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.198.79.65, 64.29.17.65`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
TXT	2	`firebase=xprize-53966, v=spf1 include:_spf.firebasemail.com ~al`
SOA	1	`ns1.vercel-dns.com hostmaster.nsone.net`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld2.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...)

Analysis

IP Addresses

studygroups.app points to two IP numbers: 216.198.79.1 and 216.198.79.65.

Name Servers

studygroups.app is delegated to two name servers: ns1.vercel-dns.com and ns2.vercel-dns.com.

studygroups.app - robtex.com

studygroups.app

app