studygroup.com - dns.ninja

`studygroup.com`

DNSSEC	⚠️ Not signed
A	66.116.117.100^{🇺🇸 SWITCH-166.116.96.0/19 switch communication}
		PTR	`cust-66.116.117.100.switch.com`
NS	`pdns05.domaincontrol.com` ⭐
		A	2603:5:21e1::34^{🇺🇸 GODADDY-DNS2603:5:21e0::/44}
			PTR	`pdns05.domaincontrol.com`
		A	97.74.110.52^{🇺🇸 GODADDY-DNS97.74.110.0/23}
			PTR	`pdns05.domaincontrol.com`
NS	`pdns06.domaincontrol.com`
		A	2603:5:22e1::34^{🇺🇸 GODADDY-DNS2603:5:22e0::/44}
			PTR	`pdns06.domaincontrol.com`
		A	173.201.78.52^{🇺🇸 GODADDY-DNS173.201.78.0/23}
			PTR	`pdns06.domaincontrol.com`
MX	`mail2.uk.studygroup.com` ⭐
		A	185.160.166.134^{🇬🇧 FourD-AS185.160.164.0/22}
			PTR	`mail2.uk.studygroup.com`
MX	`mail3.us.studygroup.com` ⭐
		A	66.209.89.82^{🇺🇸 SWITCH-166.209.64.0/19 switch communication}
			PTR	`mail3.us.studygroup.com`
MX	`mail.uk.studygroup.com`⁽²⁰⁾
		A	185.160.166.133^{🇬🇧 FourD-AS185.160.164.0/22}
			PTR	`mail.uk.studygroup.com`
MX	`mail4.us.studygroup.com`⁽²⁰⁾
		A	66.209.89.83^{🇺🇸 SWITCH-166.209.64.0/19 switch communication}
			PTR	`mail4.us.studygroup.com`
TXT	`notion_verify_3iRECvqQHzg3W4mM7yh0nUNa1VJuzexBZWkzNXrpmpTBoVKG3mBQMKp1Htk8Fy7...`
TXT	`v=spf1 ip4:66.209.89.83 ip4:66.209.89.82 ip4:185.160.166.134 ip4:185.160.166....`
TXT	`google-site-verification=0ZUW3tk1v0gk-RCknaeyCgQNmCY1ZY6nVx8nHc27vPw`
TXT	`apple-domain-verification=XzxsxUeseSLAKfcZ`
TXT	`browserstack-domain-verification=32853e23-3264-408a-a961-5fa7a88e266a`
TXT	`formstack-domain-verification=86473ec96f4f5844618cb4fc1b2165ed`
TXT	`B6KGLFSFO5C0TEWJKPKLIR9EQNKOCWOVFA6MP7SK`
TXT	`MS=5D995B1AF6F75E6586C5236D14E5A93FCEF4C3BD`
TXT	`atlassian-domain-verification=mZwu9/WEUUUWO/BRr9+kEUYyGih/cYh+TBzFue3T6x6KYpX...`
TXT	`ZOOM_verify_99k87uMaQZCvjP90u-dRdA`
TXT	`7dyiLhPzlpCrKbeh1GmAiD0xj66qj1GgMndLbaFmZmp+RsB5Tpvs26CF1LNCkqDBwfxGoqIpjaRpU...`
TXT	`amazonses:ZrE+mkRHhXcHBoLCRn29wbGU9Tln+X7rmrC08/oiT+w=`
TXT	`SGD8xClAE1wJqmMKq0q9R6PHxARF0O9UmRoOa+B20IdTZmwwJAovQGCzIKomycML0hzIBbkkY7Gmh...`
TXT	`GT8TCCFWXPZXEMMH4R5OPF25WIKQAM34H03D4TLI`
SOA	`pdns05.domaincontrol.com`dns@jomax.net 2026-05-18 #8

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783462586

rank #129696 globally
rank #60339 in the tld
WOT: SAFE (72/100)
📈 Tranco rank: #349,822

Subdomains

webmailus.studygroup.com

www.studygroup.com

academic.studygroup.com

ftp.studygroup.com

Same first word

studygroup.biz

studygroup.net

studygroup.org.uk

studygroup.org

studygroup.de

studygroup.info

studygroup.us

studygroup.com

studygroup.co.uk

studygroup.ac.uk

studygroup.gr

studygroup.co

studygroup.edu.au

studygroup.com.au

studygroup.in

Similar names

stuydgroup.com

groupstudy.com

groupstudy.org

dugupstory.com

DNS History

16 records (7 active, 9 former)

○NSns.mistral.co.uk2009-07-04 → 2020-01-10 · 4 obs

● 2009-07-04 07:54:30
● 2020-01-10 16:08:30
○ 2021-06-15 14:58:26
○ 2026-07-07 22:23:20

○NSns2.mistral.co.uk2009-07-04 → 2020-01-10 · 4 obs

● 2009-07-04 07:54:30
● 2020-01-10 16:08:30
○ 2021-06-15 14:58:26
○ 2026-07-07 22:23:20

●NSpdns05.domaincontrol.com2021-06-15 → 2026-07-07 · 3 obs

○ 2020-01-10 16:08:30
● 2021-06-15 14:58:26
● 2026-07-07 22:23:20

●NSpdns06.domaincontrol.com2021-06-15 → 2026-07-07 · 3 obs

○ 2020-01-10 16:08:30
● 2021-06-15 14:58:26
● 2026-07-07 22:23:20

○MXlgs-smtp-as.studygroup.com2009-07-04 → 2009-07-04 · 3 obs

● 2009-07-04 07:54:30
○ 2015-08-31 07:26:20
○ 2026-07-07 22:23:20

○MXmail.au.studygroup.com2015-08-31 → 2021-06-15 · 5 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2021-06-15 14:58:26
○ 2026-02-15 02:38:42
○ 2026-07-07 22:23:20

●MXmail.uk.studygroup.com2015-08-31 → 2026-07-07 · 3 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2026-07-07 22:23:20

○MXmail.us.studygroup.com2015-08-31 → 2016-06-12 · 5 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2016-06-12 03:35:04
○ 2016-06-23 20:21:22
○ 2026-07-07 22:23:20

○MXmail2.au.studygroup.com2015-08-31 → 2021-06-15 · 5 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2021-06-15 14:58:26
○ 2026-02-15 02:38:42
○ 2026-07-07 22:23:20

●MXmail2.uk.studygroup.com2015-08-31 → 2026-07-07 · 3 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2026-07-07 22:23:20

○MXmail2.us.studygroup.com2015-08-31 → 2016-06-12 · 5 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2016-06-12 03:35:04
○ 2016-06-23 20:21:22
○ 2026-07-07 22:23:20

●MXmail3.us.studygroup.com2015-08-31 → 2026-07-07 · 3 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2026-07-07 22:23:20

●MXmail4.us.studygroup.com2015-08-31 → 2026-07-07 · 3 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2026-07-07 22:23:20

○A217.154.102.1452009-07-04 → 2009-07-04 · 3 obs

● 2009-07-04 07:54:30
○ 2015-08-31 07:26:20
○ 2026-07-07 22:23:20

○A217.154.102.1672015-08-31 → 2016-12-08 · 5 obs

○ 2009-07-04 07:54:30
● 2015-08-31 07:26:20
● 2016-12-08 17:07:54
○ 2016-12-14 02:05:04
○ 2026-07-07 22:23:20

●A66.116.117.1002016-12-14 → 2026-07-07 · 3 obs

○ 2016-12-08 17:07:54
● 2016-12-14 02:05:04
● 2026-07-07 22:23:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net...	-
studygroup.com	pdns05.domaincontrol.com, pdns06.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.110.52

NS records: pdns05.domaincontrol.com, pdns06.domaincontrol.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 129ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.116.117.100`
NS	2	`pdns05.domaincontrol.com, pdns06.domaincontrol.com`
MX	4	`mail4.us.studygroup.com (pri: 20), mail3.us.studygroup.com (pri: 10)...`
TXT	14	`notion_verify_3iRECvqQHzg3W4mM7yh0nUNa1V, v=spf1 ip4:66.209.89.83 ip4:66.209.89.82...`
SOA	1	`pdns05.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (pdns05.domaincontrol.com, pdns05.domaincontrol.com, pdns06.domaincontrol.com...)

Analysis

Hierarchy

studygroup.com has four subdomains: webmailus.studygroup.com, www.studygroup.com, academic.studygroup.com and ftp.studygroup.com.

IP Addresses

studygroup.com points to a single IP number: 66.116.117.100.

Additional host names — surreyisc.com, onlinepathways.com, martindegrees.edu.au and two others — share IP numbers with studygroup.com.

Name Servers

studygroup.com is delegated to two name servers: pdns05.domaincontrol.com and pdns06.domaincontrol.com.

studygroup.com shares its name server setup with other domains, including gaut.email, richardgrist.com, bookarts.nyc and two others.

Some name servers delegated to studygroup.com are also used by other domains, notably qstabs.com and mantis.gr.

pdns05.domaincontrol.com and pdns06.domaincontrol.com each resolve to two IP addresses: pdns05.domaincontrol.com points to 97.74.110.52 and 2603:5:21e1::34, while pdns06.domaincontrol.com points to 173.201.78.52 and 2603:5:22e1::34.

Mail Servers

Mail for studygroup.com is handled by four mail servers: mail2.uk.studygroup.com, mail.uk.studygroup.com, mail3.us.studygroup.com and mail4.us.studygroup.com.

studygroup.com shares mail servers — at least in part — with other domains, including studygroup.com.au, bathisc.com, kingstonisc.com and two others.

These mail servers are routinely seen in conjunction with the mail servers mail2.au.studygroup.com and mail.au.studygroup.com.

mail2.uk.studygroup.com, mail.uk.studygroup.com, mail3.us.studygroup.com and mail4.us.studygroup.com each resolve to one IP address: mail2.uk.studygroup.com resolves to 185.160.166.134, mail.uk.studygroup.com resolves to 185.160.166.133, mail3.us.studygroup.com resolves to 66.209.89.82 and mail4.us.studygroup.com resolves to 66.209.89.83.