`studygroup.edu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:92a4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:3993^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.147^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.164^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.147, 172.67.146.164
		IPv6 hints	2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com

`edu.com`

	DNSSEC	⚠️ Not signed
	A	13.248.188.218^{🇺🇸 Amazon13.248.176.0/20}
	NS	`josephine.ns.cloudflare.com` ⭐
	NS	`sonny.ns.cloudflare.com`
	MX	`inbound-smtp.us-west-2.amazonaws.com` ⭐
	TXT	`google-site-verification=XUwxzRiNw6-GXCUt8i5uonkV-HXKrdWqqUCY59zKzJQ`
	TXT	`v=spf1 include:amazonses.com ~all`
	SOA	`josephine.ns.cloudflare.com`dns@cloudflare.com serial=2411266747

WOT: SAFE (45/100)
rank #111082 globally
rank #48644 in the tld
WOT: SUSPICIOUS (41/100)
📈 Tranco rank: #194,429

Same first word

Similar names

stuydgroup.com

groupstudy.com

groupstudy.org

dugupstory.com

DNS History

13 records (4 active, 9 former)

●A104.21.57.1472026-02-18 → 2026-08-05 · 3 obs

○ 2016-06-23 15:19:32
● 2026-02-18 07:59:50
● 2026-08-05 00:18:02

●A172.67.146.1642026-02-18 → 2026-08-05 · 3 obs

○ 2016-06-23 15:19:32
● 2026-02-18 07:59:50
● 2026-08-05 00:18:02

○A2606:4700:3035::6815:39932026-02-18 → 2026-02-18 · 4 obs

○ 2016-06-23 15:19:32
● 2026-02-18 07:59:50
○ 2026-07-10 09:51:24
○ 2026-08-05 00:18:02

●A2606:4700:3035::ac43:92a42026-02-18 → 2026-08-05 · 3 obs

○ 2016-06-23 15:19:32
● 2026-02-18 07:59:50
● 2026-08-05 00:18:02

●A2606:4700:3036::6815:39932026-07-10 → 2026-08-05 · 3 obs

○ 2026-02-18 07:59:50
● 2026-07-10 09:51:24
● 2026-08-05 00:18:02

○A52.10.233.1772015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 08:16:12
○ 2015-11-24 22:09:14
○ 2026-08-05 00:18:02

○A52.25.91.822016-03-04 → 2016-03-04 · 4 obs

○ 2015-11-24 22:09:14
● 2016-03-04 13:34:16
○ 2016-06-23 15:19:32
○ 2026-08-05 00:18:02

○A52.32.33.1412015-11-24 → 2015-11-24 · 4 obs

○ 2015-08-04 08:16:12
● 2015-11-24 22:09:14
○ 2016-03-04 13:34:16
○ 2026-08-05 00:18:02

○A52.36.119.872016-06-23 → 2016-06-23 · 4 obs

○ 2016-03-04 13:34:16
● 2016-06-23 15:19:32
○ 2026-02-18 07:59:50
○ 2026-08-05 00:18:02

○A54.148.237.2032016-03-04 → 2016-03-04 · 4 obs

○ 2015-11-24 22:09:14
● 2016-03-04 13:34:16
○ 2016-06-23 15:19:32
○ 2026-08-05 00:18:02

○A54.149.97.1902015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 08:16:12
○ 2015-11-24 22:09:14
○ 2026-08-05 00:18:02

○A54.68.74.1742016-06-23 → 2016-06-23 · 4 obs

○ 2016-03-04 13:34:16
● 2016-06-23 15:19:32
○ 2026-02-18 07:59:50
○ 2026-08-05 00:18:02

○A54.69.21.2112015-11-24 → 2015-11-24 · 4 obs

○ 2015-08-04 08:16:12
● 2015-11-24 22:09:14
○ 2016-03-04 13:34:16
○ 2026-08-05 00:18:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
edu.com	josephine.ns.cloudflare.com, sonny.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.64

NS records: josephine.ns.cloudflare.com, sonny.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for edu.com (unsigned zone)

⏱️ Timing

Total: 94ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.164, 104.21.57.147`
AAAA	2	`2606:4700:3036::6815:3993, 2606:4700:3035::ac43:92a4`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (josephine.ns.cloudflare.com, josephine.ns.cloudflare.com, josephine.ns.cloudflare.com...)

Analysis

IP Addresses

studygroup.edu.com has four IP addresses: 104.21.57.147, 172.67.146.164, 2606:4700:3035::ac43:92a4 and 2606:4700:3036::6815:3993.

adu.edu.com, unused-178-217-189-161.hosteam.pl, unused-31-133-7-186.hosteam.pl and two other host names share IP numbers with studygroup.edu.com.

studygroup.edu.com - robtex.com