`ntp.org`

DNSSEC	⚠️ Not signed
A	2001:1838:2000:41b::80:0^{🇺🇸 SERVERCENTRAL2001:1838:2000::/36}
A	204.93.207.22^{🇺🇸 SERVERCENTRAL204.93.192.0/19}
A	209.148.110.246^{🇺🇸 AS46375209.148.96.0/20 Sonic.net, Inc.}
NS	`ns1.everett.org` ⭐
		A	2001:470:1:205::229^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns1.everett.org`
		A	66.220.13.229^{🇺🇸 HURRICANE66.220.0.0/19 Hurricane Electric 55 South Market St San Jose, CA}
NS	`anyns.pch.net`
		A	2001:500:14:6004:ad::1^{🇺🇸 UNSPECIFIED2001:500:14::/48 PCH v6 block for DNS Anycast}
			PTR	`anyns.pch.net`
		A	204.61.216.4^{🇺🇸 UNSPECIFIED204.61.216.0/23 Packet Clearing House}
			PTR	`anyns.pch.net`
NS	`dns1.udel.edu`
		A	128.175.13.16^{🇺🇸 AS34128.175.0.0/16 Proxy registration for the University of Delaware}
			PTR	`dns1.udel.edu`
NS	`dns2.udel.edu`
		A	128.175.13.17^{🇺🇸 AS34128.175.0.0/16 Proxy registration for the University of Delaware}
			PTR	`dns2.udel.edu`
MX	`mx0.chi1.ntfo.org` ⭐
		A	204.93.207.18^{🇺🇸 SERVERCENTRAL204.93.192.0/19}
			PTR	`mx0.chi1.ntfo.org`
TXT	`ntp-libera-310`
TXT	`google-site-verification=1BTIwQr05WxuBXsED2L-cWc-cC7_8NDYKoWMsmAyR3g`
TXT	`google-site-verification=ISMNEfck75SW97AiPz0acClFpICIejjA6F5ijoHccZM`
TXT	`_globalsign-domain-verification=O60kZMoa5mBPIKKqd9FSRXcGUhU6s3rzZHzWNLAlL7`
TXT	`v=spf1 a mx ip4:204.93.207.0/27 ip4:66.220.13.234 ip4:66.220.13.237 ip6:2001:...`
SOA	`ns1.everett.org`postmaster@ntp.org 2026-05-01 #0

`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=1780385132

rank #1037 globally
rank #131 in the tld
Semrush Rank:#494,455 Keywords:785 Traffic:2,859/mo
WOT: SAFE (93/100)
📈 Tranco rank: #66

NTP.org

NTP.org is the official home of the Network Time Protocol (NTP) Project, which develops and maintains the open-source reference implementation of NTP—a protocol designed to synchronize computer clocks over networks to a common timebase. The protocol is critical infrastructure that ensures the reliability of billions of devices worldwide, including satellites, GPS systems, 5G networks, financial services, and healthcare systems.

NTP Pool Project

The domain is closely associated with the NTP Pool Project (ntppool.org), a massive virtual cluster of volunteer-operated time servers:

6,045+ servers distributed globally (Europe: 3,802, North America: 1,266, Asia: 570)
Serves hundreds of millions of systems worldwide
Handles trillions of DNS requests from billions of clients
Default time server for most Linux distributions and networked appliances
Nearly 2,000 volunteer server operators maintain the network

How It Works

The NTP Pool uses GeoIP data to route DNS requests to geographically appropriate servers, ensuring low-latency time synchronization. The system is monitored from multiple global points to maintain reliability.

History & Governance

The NTP Pool Project has been operational for over 20 years. The broader NTP Project is backed by the Network Time Foundation, which supports ongoing research and development. The project is led by Ask Bjørn Hansen with community contributors, and all source code is publicly available on GitHub.

Subdomains

ns2.ntp.org

twiki.ntp.org

support.ntp.org

mail2.ntp.org

psp2.ntp.org

people.ntp.org

mailman.ntp.org

bugs.ntp.org

psp3.ntp.org

archive.ntp.org

www.ntp.org

pool.ntp.org

ns1.ntp.org

lists.ntp.org

bk.ntp.org

clockisc.ntp.org

doc.ntp.org

mail1.ntp.org

Same first word

ntp.com.vn

ntp.hu

ntp.am

ntp.pl

ntp.de

ntp.li

ntp.dy.fi

ntp.info

ntp.cz

ntp.lv

ntp.hr

ntp.edu.vn

ntp.eu.com

ntp.ch

ntp.com.pe

ntp.ir

ntp.net.tw

ntp.co.uk

ntp.se

ntp.swiss

ntp.org.cn

ntp.edu.cn

ntp.co.in

ntp.co

ntp.no

ntp.es

ntp.vacations

ntp.co.za

ntp.tw

ntp.pw

ntp.gov.sg

ntp.psc.br

ntp.lt

ntp.cc

ntp.so

ntp.cl

ntp.org

ntp.it

ntp.dk

ntp.asia

ntp.nl

ntp.gov.pk

ntp.me

ntp.ca

ntp.ac.th

ntp.nu

ntp.pe

ntp.gov.ao

ntp.ru

ntp.homes

ntp.plus

ntp.dev

ntp.sk

ntp.be

ntp.pt

ntp.net.nz

ntp.in

ntp.br

ntp.camera

ntp.uk.com

ntp.id

ntp.eu

ntp.com.au

ntp.us

ntp.gov.ee

ntp.fi

ntp.gov.tw

ntp.org.pl

ntp.fail

ntp.at

ntp.gov.sa

ntp.com.tw

ntp.jp

ntp.od.ua

ntp.cn

ntp.report

ntp.org.ua

ntp.com

ntp.nic.in

ntp.ee

ntp.by

ntp.com.cn

ntp.si

ntp.hk

ntp.fr

ntp.kz

ntp.co.il

ntp.md

ntp.bg

ntp.net

ntp.org.uk

Similar names

tnp.me

pnt.hu

tnp.ee

npt.no

tpn.com.br

pnt.at

ptn.no

pnt.spb.ru

ptn.io

tpn.eu.com

ptn.url.tw

tnp.email

pnt.vn

tpn.pt

tnp.net.ph

npt.com.mx

ptn.ba.gov.br

tpn.eu

pnt.cz

tpn.us

pnt.ch

tpn.co.za

npt.net

tnp.be

tnp.si

tpn.as

tpn.es

tpn.cc

pnt.co

pnt.net

tnp.cz

ptn.lib.tx.us

ptn.ru

npt.org

pnt.cl

pnt.hr

ptn.cn

ptn.co.id

npt.gov.uk

ptn.mx

npt.jp

tnp.at

pnt.ac.th

tnp.fr

tpn.cn

ptn.com

npt.com

pnt.fr

tpn.tv

tpn.ca

npt.se

tpn.gov.pl

pnt.systems

tnp.com.ph

npt.com.vn

pnt.se

pnt.com.vn

tpn.se

ptn.org

npt.com.tw

tpn.com.au

pnt.mx

tnp.com.cn

tnp.it

npt.us

pnt.sk

tpn.dk

npt.hu

ptn.co

tnp.org

tpn.co.in

DNS History

27 records (8 active, 19 former)

●NSanyns.pch.net2017-01-05 → 2026-06-02 · 3 obs

○ 2016-08-08 02:42:42
● 2017-01-05 01:28:40
● 2026-06-02 07:55:58

●NSdns1.udel.edu2015-08-31 → 2026-06-02 · 6 obs

● 2015-08-31 10:09:52
● 2016-07-01 08:46:34
○ 2016-07-06 13:59:38
○ 2017-01-06 02:47:06
● 2017-01-07 09:02:16
● 2026-06-02 07:55:58

●NSdns2.udel.edu2015-08-31 → 2026-06-02 · 6 obs

● 2015-08-31 10:09:52
● 2016-07-01 08:46:34
○ 2016-07-06 13:59:38
○ 2017-01-06 02:47:06
● 2017-01-07 09:02:16
● 2026-06-02 07:55:58

●NSns1.everett.org2016-07-06 → 2026-06-02 · 3 obs

○ 2016-07-01 08:46:34
● 2016-07-06 13:59:38
● 2026-06-02 07:55:58

○NSns1.ntp.org2015-08-31 → 2016-08-01 · 4 obs

● 2015-08-31 10:09:52
● 2016-08-01 18:56:54
○ 2016-08-08 02:42:42
○ 2026-06-02 07:55:58

○NSns1.p20.dynect.net2017-01-05 → 2021-12-12 · 5 obs

○ 2016-08-08 02:42:42
● 2017-01-05 01:28:40
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○NSns2.everett.org2016-07-06 → 2017-01-18 · 5 obs

○ 2016-07-01 08:46:34
● 2016-07-06 13:59:38
● 2017-01-18 00:12:32
○ 2017-01-19 03:07:18
○ 2026-06-02 07:55:58

○NSns2.ntp.org2015-08-31 → 2016-08-01 · 4 obs

● 2015-08-31 10:09:52
● 2016-08-01 18:56:54
○ 2016-08-08 02:42:42
○ 2026-06-02 07:55:58

○NSns2.p20.dynect.net2017-01-05 → 2021-12-12 · 5 obs

○ 2016-08-08 02:42:42
● 2017-01-05 01:28:40
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○NSns3.p20.dynect.net2017-01-05 → 2021-12-12 · 5 obs

○ 2016-08-08 02:42:42
● 2017-01-05 01:28:40
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○NSns4.p20.dynect.net2017-01-05 → 2021-12-12 · 5 obs

○ 2016-08-08 02:42:42
● 2017-01-05 01:28:40
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○MXmail1.ntp.org2015-08-31 → 2021-12-12 · 4 obs

● 2015-08-31 10:09:52
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○MXmail2.ntp.org2015-08-31 → 2021-12-12 · 4 obs

● 2015-08-31 10:09:52
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

●MXmx0.chi1.ntfo.org2026-02-14 → 2026-06-02 · 3 obs

○ 2021-12-12 20:49:56
● 2026-02-14 16:37:54
● 2026-06-02 07:55:58

○A128.4.24.982015-08-31 → 2020-01-16 · 4 obs

● 2015-08-31 10:09:52
● 2020-01-16 16:05:18
○ 2020-03-22 18:40:32
○ 2026-06-02 07:55:58

○A149.20.68.162015-08-31 → 2016-07-06 · 4 obs

● 2015-08-31 10:09:52
● 2016-07-06 13:59:38
○ 2016-07-21 10:14:36
○ 2026-06-02 07:55:58

○A185.140.48.2312016-07-21 → 2020-01-16 · 5 obs

○ 2016-07-06 13:59:38
● 2016-07-21 10:14:36
● 2020-01-16 16:05:18
○ 2020-03-22 18:40:32
○ 2026-06-02 07:55:58

○A192.52.69.2022020-03-22 → 2020-05-05 · 5 obs

○ 2020-01-16 16:05:18
● 2020-03-22 18:40:32
● 2020-05-05 10:43:00
○ 2020-06-04 00:00:00
○ 2026-06-02 07:55:58

○A192.52.69.222020-03-22 → 2020-05-05 · 5 obs

○ 2020-01-16 16:05:18
● 2020-03-22 18:40:32
● 2020-05-05 10:43:00
○ 2020-06-04 00:00:00
○ 2026-06-02 07:55:58

●A2001:1838:2000:41b::80:02020-07-22 → 2026-06-02 · 6 obs

○ 2020-06-09 19:07:22
● 2020-07-22 20:03:58
● 2026-05-09 16:23:02
○ 2026-05-09 19:42:50
● 2026-05-09 21:14:50
● 2026-06-02 07:55:58

○A2001:4f8:fff7:1::162015-08-31 → 2016-07-06 · 4 obs

● 2015-08-31 10:09:52
● 2016-07-06 13:59:38
○ 2016-07-21 10:14:36
○ 2026-06-02 07:55:58

○A2001:5a8:601:7::80:02020-07-22 → 2021-12-12 · 5 obs

○ 2020-06-09 19:07:22
● 2020-07-22 20:03:58
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

●A204.93.207.222020-03-22 → 2026-06-02 · 3 obs

○ 2020-01-16 16:05:18
● 2020-03-22 18:40:32
● 2026-06-02 07:55:58

●A209.148.110.2462026-02-14 → 2026-06-02 · 3 obs

○ 2021-12-12 20:49:56
● 2026-02-14 16:37:54
● 2026-06-02 07:55:58

○A64.142.54.222020-03-22 → 2021-12-12 · 5 obs

○ 2020-01-16 16:05:18
● 2020-03-22 18:40:32
● 2021-12-12 20:49:56
○ 2026-02-14 16:37:54
○ 2026-06-02 07:55:58

○A64.71.190.222020-06-04 → 2020-06-09 · 5 obs

○ 2020-05-05 10:43:00
● 2020-06-04 00:00:00
● 2020-06-09 19:07:22
○ 2020-07-22 20:03:58
○ 2026-06-02 07:55:58

○A64.71.190.302020-06-04 → 2020-06-09 · 5 obs

○ 2020-05-05 10:43:00
● 2020-06-04 00:00:00
● 2020-06-09 19:07:22
○ 2020-07-22 20:03:58
○ 2026-06-02 07:55:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
ntp.org	anyns.pch.net, dns2.udel.edu, ns1.everett.org, dns1.udel.edu	1 record

✅ Authoritative Response

Server:66.220.13.229

NS records: anyns.pch.net, dns2.udel.edu, ns1.everett.org, dns1.udel.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ntp.org (unsigned zone)

⏱️ Timing

Total: 2977ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`209.148.110.246, 204.93.207.22`
AAAA	1	`2001:1838:2000:41b::80:0`
NS	4	`dns2.udel.edu, anyns.pch.net...`
MX	1	`mx0.chi1.ntfo.org (pri: 10)`
TXT	5	`google-site-verification=1BTIwQr05WxuBXs, v=spf1 a mx ip4:204.93.207.0/27 ip4:66.2...`
SOA	1	`ns1.everett.org postmaster.ntp.org`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.everett.org)

Analysis

Hierarchy

Among the subdomains of ntp.org are ns2.ntp.org, twiki.ntp.org, support.ntp.org, mail2.ntp.org, psp2.ntp.org and a few other host names.

IP Addresses

ntp.org directs to three IP numbers: 204.93.207.22, 209.148.110.246 and 2001:1838:2000:41b::80:0.

www.nwtime.org, slb0.srs1.ntfo.org, www.networktimefoundation.org and two other host names share IP numbers with ntp.org.

Name Servers

The DNS delegation for ntp.org covers 4 name servers — dns1.udel.edu, dns2.udel.edu, anyns.pch.net and ns1.everett.org.

There is at least partial name server overlap between ntp.org and other domains — 75.80.74.in-addr.arpa, 84.80.74.in-addr.arpa, 44.102.66.in-addr.arpa and two more among them.

It is common to see these name servers paired with ns2.pch.net, ns1.pch.net, adns1.nnn.upenn.edu and seven other name servers.

Hostnames that resolve to two IP addresses:

The A records for anyns.pch.net return 204.61.216.4 and 2001:500:14:6004:ad::1.

The A records for ns1.everett.org return 66.220.13.229 and 2001:470:1:205::229.

Host names with one IP number:

dns1.udel.edu resolves to the IP address 128.175.13.16.

dns2.udel.edu resolves to the IP address 128.175.13.17.

Mail Servers

Mail for ntp.org is handled by a single mail server, mx0.chi1.ntfo.org.

Like lists.ntp.org and nwtime.org, ntp.org has the same mail server arrangement as several other domains.

mx0.chi1.ntfo.org resolves to 204.93.207.18 and no other IP number.

ntp.org - robtex.com

ntp.org

org

NTP.org

NTP Pool Project

How It Works

History & Governance

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Related

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`ntp.org`

`org`