`knowtheworld.org`

DNSSEC	⚠️ Not signed
A	93.185.104.29^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
		PTR	`www19.pipni.cz`
NS	`ns2.pipni.cz` ⭐
		A	2a01:430:220::3^{🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ}
			PTR	`ns2.pipni.cz`
		A	83.167.247.20^{🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5}
			PTR	`ns2.pipni.cz`
NS	`ns.pipni.cz`
		A	93.185.104.4^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
			PTR	`ns.pipni.cz`
MX	`mail.knowtheworld.org` ⭐
		A	93.185.104.5^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
			PTR	`mail.pipni.cz`
MX	`ns3.pipni.cz`⁽²⁰⁾
		A	2a01:430:220::4^{🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ}
			PTR	`ns3.pipni.cz`
		A	83.167.247.153^{🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5}
			PTR	`ns3.pipni.cz`
SOA	`ns.pipni.cz`pipni@pipni.cz serial=483896072

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1783896300

Subdomains

mail.knowtheworld.org

Same first word

knowtheworld.org

DNS History

8 records (5 active, 3 former)

●NSns.pipni.cz2015-06-30 → 2026-07-12 · 2 obs

● 2015-06-30 18:55:48
● 2026-07-12 23:20:18

●NSns2.pipni.cz2015-06-30 → 2026-07-12 · 2 obs

● 2015-06-30 18:55:48
● 2026-07-12 23:20:18

●MXmail.knowtheworld.org2015-06-30 → 2026-07-12 · 2 obs

● 2015-06-30 18:55:48
● 2026-07-12 23:20:18

○MXns2.pipni.cz2015-11-04 → 2016-04-20 · 5 obs

○ 2015-06-30 18:55:48
● 2015-11-04 12:44:46
● 2016-04-20 10:54:36
○ 2016-11-26 04:44:56
○ 2026-07-12 23:20:18

●MXns3.pipni.cz2015-06-30 → 2026-07-12 · 5 obs

● 2015-06-30 18:55:48
○ 2015-11-04 12:44:46
○ 2016-04-20 10:54:36
● 2016-11-26 04:44:56
● 2026-07-12 23:20:18

○A93.185.104.242015-11-04 → 2016-04-20 · 5 obs

○ 2015-06-30 18:55:48
● 2015-11-04 12:44:46
● 2016-04-20 10:54:36
○ 2016-11-26 04:44:56
○ 2026-07-12 23:20:18

●A93.185.104.292015-06-30 → 2026-07-12 · 8 obs

● 2015-06-30 18:55:48
○ 2015-11-04 12:44:46
○ 2016-04-20 10:54:36
● 2016-11-26 04:44:56
● 2016-12-19 04:19:16
○ 2017-08-18 03:44:32
● 2026-06-24 22:39:20
● 2026-07-12 23:20:18

○A93.185.104.642017-08-18 → 2017-08-18 · 4 obs

○ 2016-12-19 04:19:16
● 2017-08-18 03:44:32
○ 2026-06-24 22:39:20
○ 2026-07-12 23:20:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
knowtheworld.org	ns.pipni.cz, ns2.pipni.cz	-

✅ Authoritative Response

Server:83.167.247.20

NS records: ns.pipni.cz, ns2.pipni.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowtheworld.org (unsigned zone)

⏱️ Timing

Total: 719ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`93.185.104.29`
NS	2	`ns.pipni.cz, ns2.pipni.cz`
MX	2	`mail.knowtheworld.org (pri: 10), ns3.pipni.cz (pri: 20)`
SOA	1	`ns.pipni.cz pipni.pipni.cz`

Analysis

Hierarchy

The domain mail.knowtheworld.org falls under the parent knowtheworld.org.

IP Addresses

knowtheworld.org has exactly one IP address — 93.185.104.29.

kozakovi.net, section.section.cz, livet.cz plus two other host names have IP numbers in common with knowtheworld.org.

Name Servers

Two name servers handle the delegation for knowtheworld.org: ns2.pipni.cz and ns.pipni.cz.

The name server configuration of knowtheworld.org is shared with other domains, for instance namarsu.com, jafura.sk, kodl.biz and two others.

At least some of knowtheworld.org's name servers are shared with other domains, for example lashuk.info, interierove-kotle.cz, sevenoaks.cz and two more.

These name servers tend to be used in conjunction with the name servers ns3.pipni.cz.

Host names pointing to two IP addresses:

ns2.pipni.cz resolves to two addresses: 83.167.247.20 and 2a01:430:220::3.

Host names resolving to a single IP address:

The hostname ns.pipni.cz resolves to 93.185.104.4.

Mail Servers

knowtheworld.org uses two mail servers, ns3.pipni.cz and mail.knowtheworld.org.

At least some of the mail servers used by knowtheworld.org are shared with other domains: 2yo.cz, etcs.cz, pet-run.com and two others among them.

These mail servers are often deployed together with mail.2yo.cz, mail.etcs.cz, mail.pet-run.com and 6 other mail servers.

Host names pointing to two IP addresses:

ns3.pipni.cz resolves to two addresses: 83.167.247.153 and 2a01:430:220::4.

Host names resolving to a single IP address:

The hostname mail.knowtheworld.org resolves to 93.185.104.5.

knowtheworld.org - robtex.com