optforlearnings.com - robtex.com

optforlearnings.com

DNSSEC⚠️ Not signed
A138.197.11.45🇺🇸 DIGITALOCEAN138.197.0.0/20 DigitalOcean
PTR1418929.cloudwaysapps.com
NSns10.digicertdns.com ⭐
A2600:1800::1:1f🇺🇸 Tiggee2600:1800::/48 DNS Made Easy anycast network
PTRns10.digicertdns.com
A208.94.148.159🇺🇸 Tiggee208.94.148.0/24 DNS Made Easy anycast network
PTRns10.digicertdns.com
NSns11.digicertdns.com
A2600:1801:1::1:1f🇺🇸 Tiggee2600:1801:1::/48 DNS Made Easy anycast network
PTRns11.digicertdns.com
A208.80.124.159🇺🇸 Tiggee208.80.124.0/24 DNS Made Easy anycast network
PTRns11.digicertdns.com
NSns12.digicertdns.com
A2600:1802:2::1:1f🇺🇸 Tiggee2600:1802:2::/48 DNS Made Easy anycast network
PTRns12.digicertdns.com
A208.80.126.159🇺🇸 Tiggee208.80.126.0/24 DNS Made Easy anycast network
PTRns12.digicertdns.com
NSns13.digicertdns.net
A2600:1801:3::1:1f🇺🇸 Tiggee2600:1801:3::/48 DNS Made Easy anycast network
PTRns13.digicertdns.net
A208.80.125.159🇺🇸 Tiggee208.80.125.0/24 DNS Made Easy anycast network
PTRns13.digicertdns.net
NSns14.digicertdns.net ⚠️ Not in parent delegation
A2600:1802:4::1:1f🇺🇸 Tiggee2600:1802:4::/48 DNS Made Easy anycast network
PTRns14.digicertdns.net
A208.80.127.159🇺🇸 Tiggee208.80.127.0/24 DNS Made Easy anycast network
PTRns14.digicertdns.net
NSns15.digicertdns.net ⚠️ Not in parent delegation
A2600:1800:8::1:1f🇺🇸 Tiggee2600:1800:8::/48 DNS Made Easy anycast network
PTRns15.digicertdns.net
A208.94.149.159🇺🇸 Tiggee208.94.149.0/24 DNS Made Easy anycast network
PTRns15.digicertdns.net
MXoptforlearnings-com.mail.protection.outlook.com ⭐
A2a01:111:f403:cc2c::🇮🇳 Microsoft2a01:111:f000::/36
PTRmail-ma0pr01cu01000.inbound.protection.outlook.com
A2a01:111:f403:cc2c::1🇮🇳 Microsoft2a01:111:f000::/36
PTRmail-ma0pr01cu01101.inbound.protection.outlook.com
A2a01:111:f403:cc2d::🇮🇳 Microsoft2a01:111:f000::/36
PTRmail-pnzpr01cu00200.inbound.protection.outlook.com
A2a01:111:f403:cc2d::1🇮🇳 Microsoft2a01:111:f000::/36
PTRmail-pnypr01cu00201.inbound.protection.outlook.com
A52.101.144.0🇮🇳 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ma0pr01cu01000.inbound.protection.outlook.com
A52.101.144.3🇮🇳 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ma0pr01cu01103.inbound.protection.outlook.com
A52.101.145.0🇮🇳 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-pnzpr01cu00200.inbound.protection.outlook.com
A52.101.145.2🇮🇳 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-pnypr01cu00202.inbound.protection.outlook.com
MXreply.s12.exacttarget.com(10)
A13.110.204.15🇺🇸 AS1434013.110.0.0/16
PTRreply.s12.exacttarget.com
TXTbrevo-code:1d7e8da2940ffbb3d29ab49eb7fe2644
TXTv=spf1 include:cust-spf.exacttarget.com -all
TXTv=spf1 ip4:138.197.11.45 include:spf.protection.outlook.com -all
SOAns10.digicertdns.comdns@digicertdns.com 2009-01-01 #53

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=1778417521

Same first word

optforlearnings.com

DNS History

9 records (9 active, 0 former)

NSns10.digicertdns.comns11.digicertdns.comns12.digicertdns.comns13.digicertdns.netns14.digicertdns.netns15.digicertdns.netMXoptforlearnings-com.mail.protection.outlook.comreply.s12.exacttarget.comA138.197.11.45
●NSns10.digicertdns.com2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●NSns11.digicertdns.com2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●NSns12.digicertdns.com2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●NSns13.digicertdns.net2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●NSns14.digicertdns.net2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●NSns15.digicertdns.net2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●MXoptforlearnings-com.mail.protection.outlook.com2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●MXreply.s12.exacttarget.com2026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12
●A138.197.11.452026-04-23 → 2026-05-10 · 2 obs
● 2026-04-23 04:45:26
● 2026-05-10 13:20:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net...-
optforlearnings.comns10.digicertdns.com, ns11.digicertdns.com, ns12.digicertdns.com, ns13.digicertdns.net6 records

✅ Authoritative Response

Server:208.94.148.159

NS records: ns10.digicertdns.com, ns11.digicertdns.com, ns12.digicertdns.com, ns13.digicertdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optforlearnings.com (unsigned zone)

⏱️ Timing

Total: 603ms | Queries: -

📄 Records

TypeCountSample Data
A1138.197.11.45
NS6ns14.digicertdns.net, ns15.digicertdns.net...
MX2optforlearnings-com.mail.protection.outl, reply.s12.exacttarget.com (pri: 10)
TXT3v=spf1 ip4:138.197.11.45 include:spf.pro, v=spf1 include:cust-spf.exacttarget.com ...
SOA1ns10.digicertdns.com dns.digicertdns.com

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns10.digicertdns.com, ns10.digicertdns.com, ns11.digicertdns.com...)

Analysis

IP Addresses

optforlearnings.com points to a single IP number: 138.197.11.45.

Other host names, for instance onlinlearnings.com, share IP numbers with optforlearnings.com.

Name Servers

optforlearnings.com is delegated to six name servers: ns10.digicertdns.com, ns11.digicertdns.com, ns12.digicertdns.com, ns13.digicertdns.net, ns14.digicertdns.net and ns15.digicertdns.net.

optforlearnings.com at least partially shares name servers with other domains, for instance hoergeraete.com, mortgagepath.com, tklabs.com, energie.check24.de and ultrapolymers.ro.

These name servers are commonly used together with the name servers ns0.dnsmadeeasy.com, ns1.dnsmadeeasy.com, ns2.dnsmadeeasy.com, ns3.dnsmadeeasy.com, ns4.dnsmadeeasy.com, ns1.sportnginserver.com, ns2.sportnginserver.com, ns3.sportnginserver.com, ns4.sportnginserver.com and ns5.sportnginserver.com.

Host names with two IPs:

ns10.digicertdns.com points to 2600:1800::1:1f and 208.94.148.159.

ns11.digicertdns.com points to 2600:1801:1::1:1f and 208.80.124.159.

ns12.digicertdns.com points to 2600:1802:2::1:1f and 208.80.126.159.

ns13.digicertdns.net points to 2600:1801:3::1:1f and 208.80.125.159.

ns14.digicertdns.net points to 2600:1802:4::1:1f and 208.80.127.159.

ns15.digicertdns.net points to 2600:1800:8::1:1f and 208.94.149.159.

Mail Servers

optforlearnings.com is handled by two mail servers: reply.s12.exacttarget.com and optforlearnings-com.mail.protection.outlook.com.

optforlearnings.com shares mail servers with other domains at least in part, for instance email-thelifestylecenter.com, samsonite.co.id, rocventures-email.com, info-biocodex.com and boldly.yourcaptive.com.

Eight IPs for the first host: optforlearnings-com.mail.protection.outlook.com points to 2a01:111:f403:cc2c::, 2a01:111:f403:cc2c::1, 2a01:111:f403:cc2d::, 2a01:111:f403:cc2d::1, 52.101.144.0, 52.101.144.3, 52.101.145.0 and 52.101.145.2.

One IP for the second host: reply.s12.exacttarget.com points to 13.110.204.15.