guest-tek.com - robtex.com

guest-tek.com

DNSSEC⚠️ Not signed
A44.198.48.242🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-198-48-242.compute-1.amazonaws.com
NSns-1520.awsdns-62.org ⭐
A2600:9000:5305:f000::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1520.awsdns-62.org
A205.251.197.240🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1520.awsdns-62.org
NSns-1662.awsdns-15.co.uk
A2600:9000:5306:7e00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1662.awsdns-15.co.uk
A205.251.198.126🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1662.awsdns-15.co.uk
NSns-446.awsdns-55.com
A2600:9000:5301:be00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-446.awsdns-55.com
A205.251.193.190🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-446.awsdns-55.com
NSns-791.awsdns-34.net
A2600:9000:5303:1700::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront
PTRns-791.awsdns-34.net
A205.251.195.23🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-791.awsdns-34.net
MXguesttek-com01c.mail.protection.outlook.com ⭐
A2a01:111:f403:c942::🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt5pr01cu00100.inbound.protection.outlook.com
A2a01:111:f403:c942::1🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt3pr01cu00701.inbound.protection.outlook.com
A2a01:111:f403:c942::2🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt3pr01cu00602.inbound.protection.outlook.com
A2a01:111:f403:c944::1🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yqzpr01cu01001.inbound.protection.outlook.com
A52.101.190.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt5pr01cu00100.inbound.protection.outlook.com
A52.101.190.1🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt3pr01cu00701.inbound.protection.outlook.com
A52.101.190.2🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt3pr01cu00602.inbound.protection.outlook.com
A52.101.192.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yqzpr01cu00900.inbound.protection.outlook.com
TXT944/YYtdNEZg55qs0k3X3M8Wu4UM74iT8zUhWcILBlfarpDUDn6l45WOODvpH6qPCOZvC0p5D/ZWF...
TXTMS=ms23561408
TXTv=spf1 a mx mx:guest-tek.com ip4:209.153.235.125/25 ip4:63.236.111.160/27 ip4...
SOAns-1520.awsdns-62.orgawsdns-hostmaster@amazon.com serial=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=1774425722
WOT: UNKNOWN (66/100)

Subdomains

sharepoint.guest-tek.com
www.guest-tek.com
mail2.guest-tek.com
signin.guest-tek.com
social.guest-tek.com
spw.guest-tek.com
aaa.guest-tek.com
spw-irvine.guest-tek.com
adfs.guest-tek.com
ste-us-sbc.guest-tek.com
vpn-ca-cgy.guest-tek.com

Same first word

guest-tek.info
guest-tek.com

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSns-1520.awsdns-62.orgns-1662.awsdns-15.co.ukns-446.awsdns-55.comns-791.awsdns-34.netns1.bur.qwest.netns1.ewr.qwest.netns1.iad.qwest.netns1.jsv.qwest.netMXguesttek-com01c.mail.protection.outlook.commail2.guest-tek.comA44.198.48.242209.153.235.14163.236.111.167
●NSns-1520.awsdns-62.org2016-05-07 → 2026-03-25 · 3 obs
○ 2016-02-17 15:31:14
● 2016-05-07 03:23:10
● 2026-03-25 08:14:58
●NSns-1662.awsdns-15.co.uk2016-05-07 → 2026-03-25 · 3 obs
○ 2016-02-17 15:31:14
● 2016-05-07 03:23:10
● 2026-03-25 08:14:58
●NSns-446.awsdns-55.com2016-05-07 → 2026-03-25 · 3 obs
○ 2016-02-17 15:31:14
● 2016-05-07 03:23:10
● 2026-03-25 08:14:58
●NSns-791.awsdns-34.net2016-05-07 → 2026-03-25 · 3 obs
○ 2016-02-17 15:31:14
● 2016-05-07 03:23:10
● 2026-03-25 08:14:58
○NSns1.bur.qwest.net2015-07-10 → 2016-02-17 · 4 obs
● 2015-07-10 16:57:56
● 2016-02-17 15:31:14
○ 2016-05-07 03:23:10
○ 2026-03-25 08:14:58
○NSns1.ewr.qwest.net2015-07-10 → 2016-02-17 · 4 obs
● 2015-07-10 16:57:56
● 2016-02-17 15:31:14
○ 2016-05-07 03:23:10
○ 2026-03-25 08:14:58
○NSns1.iad.qwest.net2015-07-10 → 2016-02-17 · 4 obs
● 2015-07-10 16:57:56
● 2016-02-17 15:31:14
○ 2016-05-07 03:23:10
○ 2026-03-25 08:14:58
○NSns1.jsv.qwest.net2015-07-10 → 2016-02-17 · 4 obs
● 2015-07-10 16:57:56
● 2016-02-17 15:31:14
○ 2016-05-07 03:23:10
○ 2026-03-25 08:14:58
●MXguesttek-com01c.mail.protection.outlook.com2016-05-07 → 2026-03-25 · 3 obs
○ 2016-02-17 15:31:14
● 2016-05-07 03:23:10
● 2026-03-25 08:14:58
○MXmail2.guest-tek.com2015-07-10 → 2016-02-17 · 4 obs
● 2015-07-10 16:57:56
● 2016-02-17 15:31:14
○ 2016-05-07 03:23:10
○ 2026-03-25 08:14:58
○A209.153.235.1412015-07-10 → 2015-12-11 · 4 obs
● 2015-07-10 16:57:56
● 2015-12-11 22:24:48
○ 2016-02-17 15:31:14
○ 2026-03-25 08:14:58
●A44.198.48.2422021-11-20 → 2026-03-25 · 3 obs
○ 2017-09-27 18:55:10
● 2021-11-20 07:46:58
● 2026-03-25 08:14:58
○A63.236.111.1672016-02-17 → 2017-09-27 · 5 obs
○ 2015-12-11 22:24:48
● 2016-02-17 15:31:14
● 2017-09-27 18:55:10
○ 2021-11-20 07:46:58
○ 2026-03-25 08:14:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...-
guest-tek.comns-446.awsdns-55.com, ns-791.awsdns-34.net, ns-1662.awsdns-15.co.uk, ns-1520.awsdns-62.org1 record

✅ Authoritative Response

Server:205.251.197.240

NS records: ns-446.awsdns-55.com, ns-791.awsdns-34.net, ns-1662.awsdns-15.co.uk, ns-1520.awsdns-62.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for guest-tek.com (unsigned zone)

⏱️ Timing

Total: 505ms | Queries: -

📄 Records

TypeCountSample Data
A144.198.48.242
NS4ns-1520.awsdns-62.org, ns-1662.awsdns-15.co.uk...
MX1guesttek-com01c.mail.protection.outlook.
TXT3944/YYtdNEZg55qs0k3X3M8Wu4UM74iT8zUhWcIL, MS=ms23561408...
SOA1ns-1520.awsdns-62.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-446.awsdns-55.com)

Analysis

Hierarchy

guest-tek.com is a parent of sharepoint.guest-tek.com, www.guest-tek.com, mail2.guest-tek.com, signin.guest-tek.com, social.guest-tek.com and several other host names.

IP Addresses

guest-tek.com points to a single IP number: 44.198.48.242.

Other host names, for instance ec2-44-198-48-242.compute-1.amazonaws.com, share IP numbers with guest-tek.com.

Name Servers

guest-tek.com is delegated to four name servers: ns-446.awsdns-55.com, ns-791.awsdns-34.net, ns-1520.awsdns-62.org and ns-1662.awsdns-15.co.uk.

guest-tek.com at least partially shares name servers with other domains, for instance rezkfurniture.com, 186.185.15.in-addr.arpa, jamessarmiento.com, staging.foundational.io and lifesongfororphans.org.

These name servers are commonly used alongside ns1-24-me-south-1.ec2-rdns.amazonaws.com, ns2-24-me-south-1.ec2-rdns.amazonaws.com, ns3-24-me-south-1.ec2-rdns.amazonaws.com and ns4-24-me-south-1.ec2-rdns.amazonaws.com.

Host names with two IP numbers:

ns-446.awsdns-55.com points to: 2600:9000:5301:be00::1 and 205.251.193.190.

ns-791.awsdns-34.net points to: 2600:9000:5303:1700::1 and 205.251.195.23.

ns-1520.awsdns-62.org points to: 2600:9000:5305:f000::1 and 205.251.197.240.

ns-1662.awsdns-15.co.uk points to: 2600:9000:5306:7e00::1 and 205.251.198.126.

Mail Servers

guest-tek.com is handled by a single mail server, guesttek-com01c.mail.protection.outlook.com.

guesttek-com01c.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:c942::, 2a01:111:f403:c942::1, 2a01:111:f403:c942::2, 2a01:111:f403:c944::1, 52.101.190.0, 52.101.190.1, 52.101.190.2 and 52.101.192.0.