cisco-study-guides.com - robtex.com

cisco-study-guides.com

DNSSEC⚠️ Not signed
A5.135.49.168🇧🇪 OVH5.135.0.0/16
PTRip168.ip-5-135-49.eu
NSns1.cisco-study-guides.com ⭐
A5.135.49.168🇧🇪 OVH5.135.0.0/16
PTRip168.ip-5-135-49.eu
NSns2.cisco-study-guides.com
A5.135.49.168🇧🇪 OVH5.135.0.0/16
PTRip168.ip-5-135-49.eu
MXcisco-study-guides.com ⭐
A5.135.49.168🇧🇪 OVH5.135.0.0/16
PTRip168.ip-5-135-49.eu
TXTv=spf1 ip4:152.228.222.55 ip4:51.38.52.183 ip4:5.135.49.168 +a +mx ~all
SOAns1.cisco-study-guides.comhostmaster@cisco-study-guides.com 2026-04-23 #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=1777624256

MX for

cisco-study-guides.com

Previously MX for

mail.cisco-study-guides.com

Subdomains

ns2.cisco-study-guides.com
ns1.cisco-study-guides.com
mail.cisco-study-guides.com

Same first word

cisco-study-guides.com

DNS History

24 records (4 active, 20 former)

200920112013201520172019202120232025NSns1.cisco-study-guides.comns2.cisco-study-guides.comdns1.name-services.comdns2.name-services.comdns3.name-services.comdns4.name-services.comdns5.name-services.comns-1141.awsdns-14.orgns-1348.awsdns-40.orgns-150.awsdns-18.comns-1548.awsdns-01.co.ukns-1693.awsdns-19.co.ukns-844.awsdns-41.netns-98.awsdns-12.comns-991.awsdns-59.netns1.7cloudcomputing.comns2.7cloudcomputing.comMXcisco-study-guides.commail.cisco-study-guides.commail0100.iqservs-jp.comA5.135.49.168149.47.5.176209.40.127.22436.55.242.25
○NSdns1.name-services.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○NSdns2.name-services.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○NSdns3.name-services.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○NSdns4.name-services.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○NSdns5.name-services.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○NSns-1141.awsdns-14.org2016-02-24 → 2016-05-10 · 5 obs
○ 2016-01-04 20:26:58
● 2016-02-24 05:12:36
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
○NSns-1348.awsdns-40.org2016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
○ 2016-02-24 05:12:36
○ 2026-05-01 08:36:46
○NSns-150.awsdns-18.com2016-02-24 → 2016-05-10 · 5 obs
○ 2016-01-04 20:26:58
● 2016-02-24 05:12:36
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
○NSns-1548.awsdns-01.co.uk2016-02-24 → 2016-05-10 · 5 obs
○ 2016-01-04 20:26:58
● 2016-02-24 05:12:36
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
○NSns-1693.awsdns-19.co.uk2016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
○ 2016-02-24 05:12:36
○ 2026-05-01 08:36:46
○NSns-844.awsdns-41.net2016-02-24 → 2016-05-10 · 5 obs
○ 2016-01-04 20:26:58
● 2016-02-24 05:12:36
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
○NSns-98.awsdns-12.com2016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
○ 2016-02-24 05:12:36
○ 2026-05-01 08:36:46
○NSns-991.awsdns-59.net2016-01-04 → 2016-01-04 · 4 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
○ 2016-02-24 05:12:36
○ 2026-05-01 08:36:46
○NSns1.7cloudcomputing.com2015-06-13 → 2015-06-13 · 4 obs
○ 2008-03-15 18:15:44
● 2015-06-13 11:05:22
○ 2015-10-28 09:37:28
○ 2026-05-01 08:36:46
●NSns1.cisco-study-guides.com2026-02-19 → 2026-05-01 · 3 obs
○ 2016-05-10 08:07:14
● 2026-02-19 21:42:00
● 2026-05-01 08:36:46
○NSns2.7cloudcomputing.com2015-06-13 → 2015-06-13 · 4 obs
○ 2008-03-15 18:15:44
● 2015-06-13 11:05:22
○ 2015-10-28 09:37:28
○ 2026-05-01 08:36:46
●NSns2.cisco-study-guides.com2026-02-19 → 2026-05-01 · 3 obs
○ 2016-05-10 08:07:14
● 2026-02-19 21:42:00
● 2026-05-01 08:36:46
●MXcisco-study-guides.com2015-06-13 → 2026-05-01 · 6 obs
○ 2008-03-15 18:15:44
● 2015-06-13 11:05:22
○ 2015-10-28 09:37:28
○ 2016-05-10 08:07:14
● 2026-02-19 21:42:00
● 2026-05-01 08:36:46
○MXmail.cisco-study-guides.com2008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○MXmail0100.iqservs-jp.com2016-01-04 → 2016-05-10 · 5 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
○A149.47.5.1762015-06-13 → 2015-06-13 · 4 obs
○ 2008-03-15 18:15:44
● 2015-06-13 11:05:22
○ 2015-10-28 09:37:28
○ 2026-05-01 08:36:46
○A209.40.127.2242008-03-15 → 2008-03-15 · 3 obs
● 2008-03-15 18:15:44
○ 2015-06-13 11:05:22
○ 2026-05-01 08:36:46
○A36.55.242.252016-01-04 → 2016-05-10 · 5 obs
○ 2015-10-28 09:37:28
● 2016-01-04 20:26:58
● 2016-05-10 08:07:14
○ 2026-02-19 21:42:00
○ 2026-05-01 08:36:46
●A5.135.49.1682026-02-19 → 2026-05-01 · 3 obs
○ 2016-05-10 08:07:14
● 2026-02-19 21:42:00
● 2026-05-01 08:36:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
cisco-study-guides.comns1.cisco-study-guides.com, ns2.cisco-study-guides.com2 records

✅ Authoritative Response

Server:5.135.49.168

NS records: ns1.cisco-study-guides.com, ns2.cisco-study-guides.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 201ms | Queries: -

📄 Records

TypeCountSample Data
A15.135.49.168
NS2ns1.cisco-study-guides.com, ns2.cisco-study-guides.com
MX1cisco-study-guides.com (pri: 0)
TXT1v=spf1 ip4:152.228.222.55 ip4:51.38.52.1
SOA1ns1.cisco-study-guides.com hostmaster.ci

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.cisco-study-guides.com, ns2.cisco-study-guides.com)

Analysis

Hierarchy

cisco-study-guides.com is the parent of ns2.cisco-study-guides.com, ns1.cisco-study-guides.com and mail.cisco-study-guides.com.

Mail Server Role

For cisco-study-guides.com, the mail server is cisco-study-guides.com.

IP Addresses

cisco-study-guides.com resolves to one IP number: 5.135.49.168.

other host names including attarine.com, becker-axel.de, _dc-mx.60bce73c1b8a.electricfactory.info, ns1.themememe.com and ns2.themememe.com share IP numbers with cisco-study-guides.com.

Name Servers

cisco-study-guides.com is delegated to two name servers ns1.cisco-study-guides.com and ns2.cisco-study-guides.com.

Host names with a single IP:

ns1.cisco-study-guides.com points to 5.135.49.168.

ns2.cisco-study-guides.com points to 5.135.49.168.

Host names pointing to 5.135.49.168: ns1.cisco-study-guides.com and ns2.cisco-study-guides.com.

Mail Servers

cisco-study-guides.com is served by a single mail server, cisco-study-guides.com.

cisco-study-guides.com resolves to IP 5.135.49.168.