optima-study.com - robtex.com

optima-study.com

DNSSEC⚠️ Not signed
NSdns1.novartis.com ⭐ ⚠️ Not in zone NS records
A160.62.4.7🇨🇭 NOVARTIS-CH160.62.4.0/24
PTRdns1.novartis.com
NSa1-254.akam.net ⚠️ Not in zone NS records
A2600:1401:2::fe🇺🇸 Akamai2600:1401:2::/48 Technologies
PTRa1-254.akam.net
PTRns1-254.akam.net
A193.108.91.254🇳🇱 Akamai193.108.91.0/24 Technologies
PTRa1-254.akam.net
PTRns1-254.akam.net
NSa2-66.akam.net ⚠️ Not in zone NS records
A2600:1480:7000::42🇺🇸 Akamai2600:1480:7000::/48 Technologies
PTRa2-66.akam.net
A95.100.174.66🇳🇱 Akamai95.100.174.0/24 Technologies
PTRa2-66.akam.net
NSa24-65.akam.net ⚠️ Not in zone NS records
A2600:1480:9800::41🇺🇸 Akamai2600:1480:9800::/48 Technologies
PTRa24-65.akam.net
A2.16.130.65🇳🇱 Akamai2.16.130.0/24 Technologies
PTRa24-65.akam.net
NSa28-67.akam.net ⚠️ Not in zone NS records
A2600:1480:d800::43🇺🇸 Akamai2600:1480:d800::/48 Technologies
PTRa28-67.akam.net
A95.100.173.67🇳🇱 Akamai95.100.173.0/24 Technologies
PTRa28-67.akam.net
NSa7-64.akam.net ⚠️ Not in zone NS records
A2600:1406:32::40🇺🇸 Akamai2600:1406:32::/48 Technologies
PTRa7-64.akam.net
PTRns3-64.akam.net
A23.61.199.64🇺🇸 Akamai23.61.199.0/24 Technologies
PTRa7-64.akam.net
PTRns3-64.akam.net
NSa9-65.akam.net ⚠️ Not in zone NS records
A2a02:26f0:117::41🇳🇱 Akamai2a02:26f0:117::/48 Technologies
PTRa9-65.akam.net
PTRns5-65.akam.net
A184.85.248.65🇺🇸 Akamai184.85.248.0/24 Technologies
PTRa9-65.akam.net
PTRns5-65.akam.net
NSdns2.novartis.com ⚠️ Not in zone NS records
A160.62.7.59🇨🇭 NOVARTIS-CH160.62.7.0/24
NSdns3.novartis.com ⚠️ Not in zone NS records
A160.62.14.115🇺🇸 AS26478160.62.14.0/24
PTRdns3.novartis.com
NSdns4.novartis.com ⚠️ Not in zone NS records
A160.62.14.116🇺🇸 AS26478160.62.14.0/24
PTRdns4.novartis.com
SOAdns1.novartis.comhostmaster@novartis.com 2023-03-29 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774369342

Same first word

optima-study.com

DNS History

12 records (10 active, 2 former)

20162017201820192020202120222023202420252026NSa1-254.akam.neta2-66.akam.neta24-65.akam.neta28-67.akam.neta7-64.akam.neta9-65.akam.netdns1.novartis.comdns2.novartis.comdns3.novartis.comdns4.novartis.commia03-1.digex.comA164.109.70.104
●NSa1-254.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSa2-66.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSa24-65.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSa28-67.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSa7-64.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSa9-65.akam.net2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSdns1.novartis.com2015-06-30 → 2026-03-24 · 2 obs
● 2015-06-30 13:30:54
● 2026-03-24 16:49:40
●NSdns2.novartis.com2015-06-30 → 2026-03-24 · 2 obs
● 2015-06-30 13:30:54
● 2026-03-24 16:49:40
●NSdns3.novartis.com2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
●NSdns4.novartis.com2026-02-19 → 2026-03-24 · 3 obs
○ 2016-12-08 22:39:02
● 2026-02-19 19:33:00
● 2026-03-24 16:49:40
○NSmia03-1.digex.com2015-06-30 → 2016-12-08 · 4 obs
● 2015-06-30 13:30:54
● 2016-12-08 22:39:02
○ 2026-02-19 19:33:00
○ 2026-03-24 16:49:40
○A164.109.70.1042015-06-30 → 2016-12-08 · 4 obs
● 2015-06-30 13:30:54
● 2016-12-08 22:39:02
○ 2026-02-19 19:33:00
○ 2026-03-24 16:49:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net...-
optima-study.comdns1.novartis.com, dns2.novartis.com, a28-67.akam.net, a9-65.akam.net...4 records

✅ Authoritative Response

Server:2.16.130.65

NS records: dns1.novartis.com, dns2.novartis.com, a28-67.akam.net, a9-65.akam.net, a7-64.akam.net, a1-254.akam.net, a2-66.akam.net, a24-65.akam.net, dns3.novartis.com, dns4.novartis.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optima-study.com (unsigned zone)

⏱️ Timing

Total: 760ms | Queries: -

📄 Records

TypeCountSample Data
NS10a7-64.akam.net, dns3.novartis.com...
SOA1dns1.novartis.com hostmaster.novartis.co

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.novartis.com, dns2.novartis.com, dns3.novartis.com...)

Analysis

Name Servers

optima-study.com is delegated to ten name servers: dns1.novartis.com, dns2.novartis.com, dns3.novartis.com, dns4.novartis.com, a1-254.akam.net, a2-66.akam.net, a24-65.akam.net, a28-67.akam.net, a7-64.akam.net and a9-65.akam.net.

optima-study.com shares name servers with other domains at least partially, for instance dds.co.kr, jcrewfactoryoutlet.com, rabobank.de, liberty-it.ie and oraclepressbooks.com.

these name servers are commonly used with a11-65.akam.net, a8-64.akam.net, a3-67.akam.net, a6-64.akam.net, a11-64.akam.net, a5-66.akam.net and a3-66.akam.net.

Host names with two IPs

a1-254.akam.net points to 2600:1401:2::fe and 193.108.91.254

a2-66.akam.net points to 2600:1480:7000::42 and 95.100.174.66

a24-65.akam.net points to 2600:1480:9800::41 and 2.16.130.65

a28-67.akam.net points to 2600:1480:d800::43 and 95.100.173.67

a7-64.akam.net points to 2600:1406:32::40 and 23.61.199.64

a9-65.akam.net points to 2a02:26f0:117::41 and 184.85.248.65

Host names with one IP

dns1.novartis.com points to 160.62.4.7

dns2.novartis.com points to 160.62.7.59

dns3.novartis.com points to 160.62.14.115

dns4.novartis.com points to 160.62.14.116