ntp.org

NTP

Who runs NTP, what it tracks and what it costs, and the 20 closest open source time synchronization alternatives.

Who’s behind it
Not stated
Online since
Unknown
Trackers
Prices
No pricing page
Last price change
–
Closest alternative
NTPsec

Measured from NTP’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

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Visit NTP

01 · Who’s behind it

Who runs NTP

NTP ntp.org

The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase.

Wikidata: standard protocol for synchronizing time across devices

Company
No imprint we could read
Online since
Not in the Internet Archive
Audience
In English

02 · Privacy

What NTP tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

trackers that follow visitors

More than all 19 alternatives below.

Privacy-friendly alternatives →
Cookie banner
None found
US company
3 tools
  • Session recording

    Records clicks, scrolling and typing so the company can replay visits.

  • Visitor analytics

    Counts and follows visits, usually with cookies.

  • Third-party embeds

    Videos, maps or fonts from other companies, which receive the visitor’s IP address.

03 · Alternatives

Alternatives to NTP

Thumbs up if it’s a real alternative to NTP, thumbs down if it isn’t.

Fewer trackers than NTPNo ad trackersRegistered in the EUFree planOnly in English
  1. 01
    NTPsec ntpsec.org English No trackers

    Welcome to NTPsec

    implementation of Network Time Protocol

    Compare NTPsec with NTP →
  2. 02
    chrony-project.org English No trackers

    chrony – Introduction

    free NTP software

    Compare chrony-project.org with NTP →
  3. 03
    ntppool.org Top 10K English No trackers

    pool.ntp.org: the internet cluster of ntp servers

    Compare ntppool.org with NTP →
  4. 04
    time in the United States time.gov English 1 tracker

    National Institute of Standards and Technology | NIST

    NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

    Compare time in the United States with NTP →
  5. 05
    NetBSD netbsd.org English No trackers

    The NetBSD Project

    Compare NetBSD with NTP →
  6. 06
    FreeBSD freebsd.org Top 10K English No trackers

    The FreeBSD Project

    free Unix-like operating system

    Compare FreeBSD with NTP →
  7. 07
    tizen.org Top 10K No trackers
    Compare tizen.org with NTP →
  8. 08
    OpenStack openstack.org English No trackers

    Open Source Cloud Computing Infrastructure - OpenStack

    Deployed by thousands. Proven production at scale. OpenStack is a set of software components that provide common services for cloud infrastructure.

    Compare OpenStack with NTP →
  9. 09
    National Institute of Standards and Technology nist.gov Top 1K English 1 tracker

    National Institute of Standards and Technology

    NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

    Compare National Institute of Standards and Technology with NTP →
  10. 10
    MariaDB mariadb.org Top 10K English 1 tracker

    MariaDB Foundation - MariaDB.org

    database management system, relational, open source, community developed fork of MySQL

    Compare MariaDB with NTP →
  11. 11
    OpenBSD openbsd.org English No trackers

    OpenBSD

    the main OpenBSD page

    Compare OpenBSD with NTP →
  12. 12
    IETF ietf.org Top 1K English 1 tracker

    IETF | Internet Engineering Task Force

    The Internet Engineering Task Force (IETF) is the premier Internet standards body, developing open standards through open processes.

    Compare IETF with NTP →
  13. 13
    I2P geti2p.net English No trackers

    I2P - The Invisible Internet Project | EN

    I2P is a fully encrypted private network layer. Protect your online activity from surveillance and censorship with built-in end-to-end encryption.

    Compare I2P with NTP →
  14. 14
    GNU gnu.org Top 1K English No trackers

    The GNU Operating System and the Free Software Movement

    Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

    Compare GNU with NTP →
  15. 15
    TYPO3 typo3.org English 1 tracker

    TYPO3 Project and Governance — Democratic Open Source - TYPO3 Project

    The TYPO3 project is a volunteer community backed by a not-for-profit member association, and a fully-owned service company.

    Compare TYPO3 with NTP →
  16. 16
    ICANN icann.org Top 10K English No trackers

    Internet Corporation for Assigned Names and Numbers (ICANN)

    ICANN’s mission is to help ensure a stable, secure, and unified global Internet.

    Compare ICANN with NTP →
  17. 17

    development and dissemination of internet software and tools

    Compare Internet Systems Consortium with NTP →
  18. 18
    Python python.org Top 1K English No trackers

    Welcome to Python.org

    The official home of the Python Programming Language

    Compare Python with NTP →
  19. 19
    Joomla joomla.org Top 10K English 1 tracker

    Joomla Content Management System (CMS) - try it! It's free!

    Joomla! is the mobile-ready and user-friendly way to build your website. Choose from thousands of features and designs. Joomla! is free and open source.

    Compare Joomla with NTP →
  20. 20
    Debian debian.org Top 1K English No trackers

    Debian -- The Universal Operating System

    Debian is an operating system and a distribution of Free Software. It is maintained and updated through the work of many users who volunteer their time and effort.

    Compare Debian with NTP →

Closest first, by how much each site’s offer resembles NTP’s. Trackers are counted the same way as above. Highlighted technologies are ones NTP uses too. Votes and comments come from visitors and don’t change the order.

04 · History

No changes yet. Each new crawl is compared with the last one, and what NTP adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack, the competitor map and search numbers · 6 technologies
Neighbours
k = 20
Sites searched
9,192
Vector
384-d
Query
64 ms

Competitor map

Each alternative by how close its vector is to NTP’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Hover for the numbers, click to jump to it in the list.

similarity × popularity

TYPO3GNUIETFNational Institute of Standards and TechnologyFreeBSDNetBSDtime in the United Statesntppool.orgchrony-project.orgNTPsec