NJTU.EDU.CN 北京交通大学


njtu.edu.cn website information.

njtu.edu.cn domain name is registered by .CN top-level domain registry. See the other sites registred in .CN domain zone.

Following name servers are specified for njtu.edu.cn domain:

  • mars.njtu.edu.cn
  • jupiter.njtu.edu.cn
  • venus.njtu.edu.cn

and probably website njtu.edu.cn is hosted by TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW web hosting company. Check the complete list of other most popular websites hosted by TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW hosting company.

According to Alexa traffic rank the highest website njtu.edu.cn position was 7247 (in the world). The lowest Alexa rank position was 837213. Now website njtu.edu.cn ranked in Alexa database as number 52733 (in the world).

Website njtu.edu.cn Desktop speed measurement score (16/100) is better than the results of 2.91% of other sites shows that the page desktop performance can be improved.

njtu.edu.cn Mobile usability score (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of njtu.edu.cn (40/100) is better than the results of 18.97% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Sep-21-2024 52,733-562
Sep-20-2024 52,171162
Sep-19-2024 52,333493
Sep-18-2024 52,826-254
Sep-17-2024 52,572-173
Sep-16-2024 52,399733
Sep-15-2024 53,132-1,212

Advertisement

njtu.edu.cn Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.



njtu.edu.cn whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Out of this registry.

njtu.edu.cn server information

Servers Location

IP Address
202.112.154.197
Country
China
Region
Beijing
City
Beijing

njtu.edu.cn desktop page speed rank

Last tested: 2019-12-12


Desktop Speed Bad
16/100

njtu.edu.cn Desktop Speed Test Quick Summary


priority - 369 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 3.5MiB (77% reduction).

Compressing and resizing https://www.bjtu.edu.cn/images/2019-11/f834fb041f8d4eea8c3f69e28f56ef37.jpg could save 710.9KiB (97% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-10/56b09ab9867b42719c274e6823acbe56.jpg could save 607.5KiB (97% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-12/8aedd043423742f88cec43ede459252b.jpg could save 541.4KiB (97% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-11/3c0862a848f44b978ccfe13ff74f4f25.jpg could save 475.2KiB (70% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-11/ee46599ff4204348849dfdb6cd689532.jpg could save 443.9KiB (47% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-07/a1b668ca556b487ca022dfc230818545.jpg could save 82.3KiB (93% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620100018350706.jpg could save 81.7KiB (95% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620100003007679.jpg could save 81.5KiB (94% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620100031760837.jpg could save 81.5KiB (95% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620095858731293.jpg could save 77.3KiB (94% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620095927573489.jpg could save 69.9KiB (95% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-09/98c5dd0555e743038e84d1022d2725e3.jpg could save 66.5KiB (31% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620095947245525.jpg could save 48.3KiB (93% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-06/3f83a2e67ec244cd8af231db54eea9f1.jpg could save 47.9KiB (92% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-07/eb23f36be43c44329fb0978714a9ec31.jpg could save 46.3KiB (93% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-11/a556bc8e22384b288636051031eb140f.jpg could save 42.3KiB (76% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/content/2019-06/20190620095912895301.jpg could save 35.7KiB (92% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode_bg01.jpg could save 20KiB (37% reduction).
Compressing and resizing https://www.bjtu.edu.cn/images/2019-10/86906bce2a104209859d4302c0548f5e.jpg could save 16.9KiB (72% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-09/96373281df5a4126b8fdc0fbc88606b0.jpg could save 10.5KiB (46% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/wx01.jpg could save 6.4KiB (20% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/footer_bg.jpg could save 6.2KiB (27% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode03_rt.png could save 2.5KiB (27% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode03_lf.png could save 2KiB (22% reduction).

priority - 18 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.bjtu.edu.cn/css/css2019/iconfont.css (expiration not specified)
https://www.bjtu.edu.cn/css/css2019/index.css (expiration not specified)
https://www.bjtu.edu.cn/css/css2019/style.css (expiration not specified)
https://www.bjtu.edu.cn/images/2019-06/3f83a2e67ec244cd8af231db54eea9f1.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-07/a1b668ca556b487ca022dfc230818545.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-07/eb23f36be43c44329fb0978714a9ec31.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-09/96373281df5a4126b8fdc0fbc88606b0.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-09/98c5dd0555e743038e84d1022d2725e3.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-10/56b09ab9867b42719c274e6823acbe56.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-10/86906bce2a104209859d4302c0548f5e.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/3c0862a848f44b978ccfe13ff74f4f25.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/a556bc8e22384b288636051031eb140f.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/ee46599ff4204348849dfdb6cd689532.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/f834fb041f8d4eea8c3f69e28f56ef37.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-12/6ffb65dc8f4345d3b703ab21c0d3d0ee.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-12/8aedd043423742f88cec43ede459252b.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095858731293.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095912895301.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095927573489.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095947245525.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100003007679.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100018350706.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100031760837.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/footer_bg.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/footer_logo.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/logo_01.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode03_lf.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode03_rt.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode_bg01.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/search.svg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/wx01.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/wx02.png (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/jquery-1.12.0.min.js (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/jquery.flexslider-min.js (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/script.js (expiration not specified)

priority - 16 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 155.2KiB (70% reduction).

Compressing https://www.bjtu.edu.cn/js/js2019/jquery-1.12.0.min.js could save 62KiB (65% reduction).
Compressing https://www.bjtu.edu.cn/ could save 39.3KiB (82% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/index.css could save 15.8KiB (76% reduction).
Compressing https://www.bjtu.edu.cn/js/js2019/jquery.flexslider-min.js could save 15.3KiB (71% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/style.css could save 11.9KiB (75% reduction).
Compressing https://www.bjtu.edu.cn/js/js2019/script.js could save 7.7KiB (71% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/iconfont.css could save 2.5KiB (33% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/search.svg could save 773B (52% reduction).

priority - 2 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

https://www.bjtu.edu.cn/css/css2019/iconfont.css

priority - 2 Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 14.9KiB (32% reduction).

Minifying https://www.bjtu.edu.cn/ could save 14.9KiB (32% reduction).

priority - 1 Reduce server response time

In our test, your server responded in 0.28 seconds.

There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 0 Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 4.6KiB (43% reduction).

Minifying https://www.bjtu.edu.cn/js/js2019/script.js could save 4.6KiB (43% reduction).

priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 4.3KiB (12% reduction).

Minifying https://www.bjtu.edu.cn/css/css2019/index.css could save 2.5KiB (12% reduction).
Minifying https://www.bjtu.edu.cn/css/css2019/style.css could save 1.8KiB (12% reduction).

njtu.edu.cn Desktop Resources

Total Resources37
Number of Hosts2
Static Resources35
JavaScript Resources3
CSS Resources3

njtu.edu.cn Desktop Resource Breakdown

njtu.edu.cn mobile page speed rank

Last tested: 2019-12-11


Mobile Speed Bad
40/100

njtu.edu.cn Mobile Speed Test Quick Summary


priority - 115 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 1.1MiB (64% reduction).

Compressing https://www.bjtu.edu.cn/images/2019-11/3c0862a848f44b978ccfe13ff74f4f25.jpg could save 475.2KiB (70% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-07/a1b668ca556b487ca022dfc230818545.jpg could save 68.1KiB (77% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-09/98c5dd0555e743038e84d1022d2725e3.jpg could save 66.5KiB (31% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620100031760837.jpg could save 66.3KiB (77% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620100018350706.jpg could save 66.3KiB (77% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620095858731293.jpg could save 64.9KiB (79% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620100003007679.jpg could save 63.6KiB (73% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620095927573489.jpg could save 58.6KiB (79% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620095947245525.jpg could save 39.5KiB (76% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-06/3f83a2e67ec244cd8af231db54eea9f1.jpg could save 39.2KiB (75% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-07/eb23f36be43c44329fb0978714a9ec31.jpg could save 39.2KiB (79% reduction).
Compressing https://www.bjtu.edu.cn/images/content/2019-06/20190620095912895301.jpg could save 28.1KiB (73% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode_bg01.jpg could save 20KiB (37% reduction).
Compressing https://www.bjtu.edu.cn/images/2019-09/96373281df5a4126b8fdc0fbc88606b0.jpg could save 10.5KiB (46% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/wx01.jpg could save 6.4KiB (20% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/footer_bg.jpg could save 6.2KiB (27% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode03_rt.png could save 2.5KiB (27% reduction).
Compressing https://www.bjtu.edu.cn/images/img2019/mode03_lf.png could save 2KiB (22% reduction).

priority - 23 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.bjtu.edu.cn/css/css2019/iconfont.css (expiration not specified)
https://www.bjtu.edu.cn/css/css2019/index.css (expiration not specified)
https://www.bjtu.edu.cn/css/css2019/style.css (expiration not specified)
https://www.bjtu.edu.cn/images/2019-06/3f83a2e67ec244cd8af231db54eea9f1.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-07/a1b668ca556b487ca022dfc230818545.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-07/eb23f36be43c44329fb0978714a9ec31.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-09/96373281df5a4126b8fdc0fbc88606b0.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-09/98c5dd0555e743038e84d1022d2725e3.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-10/86906bce2a104209859d4302c0548f5e.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/3c0862a848f44b978ccfe13ff74f4f25.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-11/a556bc8e22384b288636051031eb140f.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/2019-12/6ffb65dc8f4345d3b703ab21c0d3d0ee.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095858731293.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095912895301.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095927573489.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620095947245525.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100003007679.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100018350706.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/content/2019-06/20190620100031760837.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/footer_bg.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/footer_logo.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/logo_01.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode03_lf.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode03_rt.png (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/mode_bg01.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/wx01.jpg (expiration not specified)
https://www.bjtu.edu.cn/images/img2019/wx02.png (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/jquery-1.12.0.min.js (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/jquery.flexslider-min.js (expiration not specified)
https://www.bjtu.edu.cn/js/js2019/script.js (expiration not specified)

priority - 16 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 154.5KiB (70% reduction).

Compressing https://www.bjtu.edu.cn/js/js2019/jquery-1.12.0.min.js could save 62KiB (65% reduction).
Compressing https://www.bjtu.edu.cn/ could save 39.2KiB (82% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/index.css could save 15.8KiB (76% reduction).
Compressing https://www.bjtu.edu.cn/js/js2019/jquery.flexslider-min.js could save 15.3KiB (71% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/style.css could save 11.9KiB (75% reduction).
Compressing https://www.bjtu.edu.cn/js/js2019/script.js could save 7.7KiB (71% reduction).
Compressing https://www.bjtu.edu.cn/css/css2019/iconfont.css could save 2.5KiB (33% reduction).

priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

https://www.bjtu.edu.cn/css/css2019/iconfont.css

priority - 2 Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 14.9KiB (32% reduction).

Minifying https://www.bjtu.edu.cn/ could save 14.9KiB (32% reduction).

priority - 1 Reduce server response time

In our test, your server responded in 0.28 seconds.

There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.

priority - 0 Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 4.6KiB (43% reduction).

Minifying https://www.bjtu.edu.cn/js/js2019/script.js could save 4.6KiB (43% reduction).

priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 4.3KiB (12% reduction).

Minifying https://www.bjtu.edu.cn/css/css2019/index.css could save 2.5KiB (12% reduction).
Minifying https://www.bjtu.edu.cn/css/css2019/style.css could save 1.8KiB (12% reduction).

njtu.edu.cn Mobile Resources

Total Resources32
Number of Hosts2
Static Resources30
JavaScript Resources3
CSS Resources3

njtu.edu.cn Mobile Resource Breakdown

njtu.edu.cn mobile page usability

Last tested: 2019-12-11


Mobile Usability Good
100/100

njtu.edu.cn similar domains

Similar domains:
www.njtu.com
www.njtu.net
www.njtu.org
www.njtu.info
www.njtu.biz
www.njtu.us
www.njtu.mobi
www.jtu.edu.cn
www.njtu.edu.cn
www.bjtu.edu.cn
www.nbjtu.edu.cn
www.bnjtu.edu.cn
www.hjtu.edu.cn
www.nhjtu.edu.cn
www.hnjtu.edu.cn
www.jjtu.edu.cn
www.njjtu.edu.cn
www.jnjtu.edu.cn
www.mjtu.edu.cn
www.nmjtu.edu.cn
www.mnjtu.edu.cn
www.ntu.edu.cn
www.nntu.edu.cn
www.njntu.edu.cn
www.nnjtu.edu.cn
www.nhtu.edu.cn
www.njhtu.edu.cn
www.nutu.edu.cn
www.njutu.edu.cn
www.nujtu.edu.cn
www.nitu.edu.cn
www.njitu.edu.cn
www.nijtu.edu.cn
www.nktu.edu.cn
www.njktu.edu.cn
www.nkjtu.edu.cn
www.nmtu.edu.cn
www.njmtu.edu.cn
www.nju.edu.cn
www.njru.edu.cn
www.njtru.edu.cn
www.njrtu.edu.cn
www.njfu.edu.cn
www.njtfu.edu.cn
www.njftu.edu.cn
www.njgu.edu.cn
www.njtgu.edu.cn
www.njgtu.edu.cn
www.njyu.edu.cn
www.njtyu.edu.cn
www.njytu.edu.cn
www.njt.edu.cn
www.njty.edu.cn
www.njtuy.edu.cn
www.njth.edu.cn
www.njtuh.edu.cn
www.njthu.edu.cn
www.njtj.edu.cn
www.njtuj.edu.cn
www.njtju.edu.cn
www.njti.edu.cn
www.njtui.edu.cn
www.njtiu.edu.cn

njtu.edu.cn Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


njtu.edu.cn TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.