BJAD.COM.CN 首页-北京安定医院

bjad.com.cn Website Information

Daily Unique Visits: 796

Daily Page Views: 1,592

Income Per Day: $5

Estimated Value: $1,200

bjad.com.cn is registered under .CN top-level domain. Please check other sites in .CN zone.

No name server records were found.

and is probably hosted by HWCSNET Huawei Cloud Service data center, CN. See the full list of other websites hosted by HWCSNET Huawei Cloud Service data center, CN.

The highest website bjad.com.cn position in Alexa rank database was 23326 and the lowest rank position was 999244. Current position of bjad.com.cn in Alexa rank database is 900765.

Desktop speed score of bjad.com.cn (100/100) is better than the results of 100% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of bjad.com.cn (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of bjad.com.cn (28/100) is better than the results of 8.55% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Advertisement

bjad.com.cn Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


bjad.com.cn whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: bjad.com.cn
ROID: 20030721s10011s00303952-cn
Domain Status: ok
Registrant: 首都医科大学附属北京安定医院
Registrant Contact Email: anding_xuanjiao@163.com
Sponsoring Registrar: 北京中科三方网络技术有限公司
Name Server: ns1.sfn.cn
Name Server: ns2.sfn.cn
Registration Time: 2003-07-21 15:21:31
Expiration Time: 2025-07-21 15:21:31
DNSSEC: unsigned

bjad.com.cn server information

Servers Location

bjad.com.cn desktop page speed rank

Last tested: 2016-01-18


Desktop Speed Good
100/100

bjad.com.cn Desktop Resource Breakdown

Total Resources1
Number of Hosts1

bjad.com.cn mobile page speed rank

Last tested: 2019-11-09


Mobile Speed Bad
28/100

bjad.com.cn Mobile Speed Test Quick Summary


priority - 144Optimize images

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

Optimize the following images to reduce their size by 1.4MiB (57% reduction).

Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160454.jpg could save 332.7KiB (72% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160431.jpg could save 204.1KiB (55% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160440.jpg could save 203.1KiB (56% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717155931.jpg could save 183.1KiB (54% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…729/20190729104921.jpg could save 125.6KiB (44% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…218/20190218150559.jpg could save 111.7KiB (75% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…510/20190510113348.jpg could save 52KiB (45% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…517/20190517192444.jpg could save 43.7KiB (43% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140055.jpg could save 40.2KiB (86% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140030.jpg could save 30.5KiB (84% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140106.jpg could save 30.1KiB (83% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140041.jpg could save 29.4KiB (83% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…009/20191009114111.png could save 13.8KiB (14% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…206/20181206155356.png could save 3.1KiB (16% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120165347.png could save 935B (37% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…205/20181205154757.jpg could save 860B (71% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/images/common/54Doctor.png could save 842B (39% reduction).
Compressing http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151140.png could save 161B (12% reduction).

priority - 52Leverage 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:

http://www.bjad.com.cn/Content/Areas/Common/css/article.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/banner.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/common.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/footer.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/header.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/idangerous.swiper.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/linkMap.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/message.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/nav.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/css/slick.css (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/images/common/54Doctor.png (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/images/common/logo.png (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/images/logo/wxShare.jpg (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/change_fontsize.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/common.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/script…rizontal_pic_scroll.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/script…rous.swiper-2.1.min.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/jquery-1.11.0.min.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/jquery.lazyload.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/nav.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Common/scripts/slick.js (expiration not specified)
http://www.bjad.com.cn/Content/Areas/Hospitals/css/main.css (expiration not specified)
http://www.bjad.com.cn/Content/Awesome/Awesome.css (expiration not specified)
http://www.bjad.com.cn/Content/Awesome/jquery-ui.css (expiration not specified)
http://www.bjad.com.cn/Content/plugins/baiduShare/…i/js/share/api_base.js (expiration not specified)
http://www.bjad.com.cn/Content/plugins/baiduShare/…i/js/view/view_base.js (expiration not specified)
http://www.bjad.com.cn/Scripts/Awesome/Awesome.js (expiration not specified)
http://www.bjad.com.cn/Scripts/Awesome/jquery-ui.min.js (expiration not specified)
http://www.bjad.com.cn/Scripts/Awesome/jquery.form.js (expiration not specified)
http://www.bjad.com.cn/Scripts/Common/control.js (expiration not specified)
http://www.bjad.com.cn/Scripts/jquery-1.8.3.min.js (expiration not specified)
http://www.bjad.com.cn/Scripts/jquery.unobtrusive-ajax.js (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120112124.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120112614.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120140116.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120150530.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151115.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151140.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151202.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151243.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151259.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151318.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120151333.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120153735.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…120/20181120165347.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…127/20181127132359.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…205/20181205154757.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…206/20181206155356.png (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…214/20181214163006.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140030.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140041.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140055.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…217/20181217140106.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…226/20181226091249.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…226/20181226091402.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…218/20190218150559.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…218/20190218150743.JPG (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…510/20190510113348.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…517/20190517192444.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717155931.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160431.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160440.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…717/20190717160454.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…729/20190729104921.jpg (expiration not specified)
http://www.bjad.com.cn/Sites/Uploaded/UserUpLoad/2…009/20191009114111.png (expiration not specified)
http://www.bjad.com.cn/Sites_OldFiles//uploadfiles/image/201704/107.jpg (expiration not specified)
http://www.bjad.com.cn/Sites_OldFiles//uploadfiles/image/201805/32.jpg (expiration not specified)
http://www.bjad.com.cn/Sites_OldFiles//uploadfiles/image/201809/50.png (expiration not specified)
https://tongji.54doctor.net/54doctor.js (expiration not specified)

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 17 blocking script resources and 16 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://www.bjad.com.cn/Content/Areas/Common/script…rous.swiper-2.1.min.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/jquery-1.11.0.min.js
http://www.bjad.com.cn/Scripts/jquery-1.8.3.min.js
http://www.bjad.com.cn/Scripts/Common/control.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/change_fontsize.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/common.js
http://www.bjad.com.cn/Scripts/Awesome/jquery-ui.min.js
http://www.bjad.com.cn/Scripts/Awesome/jquery.form.js
http://www.bjad.com.cn/Scripts/Awesome/Awesome.js
http://www.bjad.com.cn/Scripts/Common/control.js
http://www.bjad.com.cn/Scripts/jquery.unobtrusive-ajax.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/slick.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/jquery.lazyload.js
http://www.bjad.com.cn/Content/Areas/Common/scripts/nav.js
http://www.bjad.com.cn/Content/Areas/Common/script…rous.swiper-2.1.min.js
http://www.bjad.com.cn/Content/Areas/Common/script…rizontal_pic_scroll.js
http://www.bjad.com.cn/Content/Areas/Common/script…rous.swiper-2.1.min.js

Optimize CSS Delivery of the following:

http://www.bjad.com.cn/Content/Areas/Common/css/common.css
http://www.bjad.com.cn/Content/Areas/Common/css/message.css
http://www.bjad.com.cn/Content/Areas/Common/css/article.css
http://www.bjad.com.cn/Content/Areas/Common/css/slick.css
http://www.bjad.com.cn/Content/Areas/Hospitals/css/main.css
http://www.bjad.com.cn/Content/Areas/Common/css/banner.css
http://www.bjad.com.cn/Content/Awesome/jquery-ui.css
http://www.bjad.com.cn/Content/Awesome/Awesome.css
http://www.bjad.com.cn/Content/Areas/Common/css/header.css
http://www.bjad.com.cn/Content/Areas/Common/css/nav.css
http://www.bjad.com.cn/Content/Areas/Common/css/idangerous.swiper.css
http://www.bjad.com.cn/Content/Areas/Common/css/idangerous.swiper.css
http://www.bjad.com.cn/Content/Areas/Common/css/linkMap.css
http://www.bjad.com.cn/Content/Areas/Common/css/banner.css
http://www.bjad.com.cn/Content/Areas/Common/css/idangerous.swiper.css
http://www.bjad.com.cn/Content/Areas/Common/css/footer.css

priority - 24Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 66% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 10Enable 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 93.9KiB (78% reduction).

Compressing http://www.bjad.com.cn/ could save 82.2KiB (82% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/scripts/common.js could save 1.7KiB (68% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/css/footer.css could save 1.5KiB (64% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/css/slick.css could save 1.3KiB (70% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/scripts/nav.js could save 1.2KiB (73% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/script…rizontal_pic_scroll.js could save 1,022B (56% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/css/banner.css could save 994B (60% reduction).
Compressing http://www.bjad.com.cn/Content/plugins/baiduShare/…i/js/share/api_base.js could save 888B (60% reduction).
Compressing http://www.bjad.com.cn/Content/plugins/baiduShare/…i/js/view/view_base.js could save 888B (54% reduction).
Compressing http://www.bjad.com.cn/Content/plugins/baiduShare/…_view.js?v=3ae6026d.js could save 659B (47% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/css/linkMap.css could save 649B (61% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/css/message.css could save 438B (55% reduction).
Compressing http://www.bjad.com.cn/Content/plugins/baiduShare/…e_api.js?v=226108fe.js could save 262B (42% reduction).
Compressing http://www.bjad.com.cn/Content/Areas/Common/scripts/change_fontsize.js could save 187B (39% reduction).

priority - 2Minify 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 18.1KiB (33% reduction).

Minifying http://www.bjad.com.cn/Scripts/Awesome/jquery.form.js could save 3.7KiB (50% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/scripts/slick.js could save 3.7KiB (25% reduction) after compression.
Minifying http://www.bjad.com.cn/Scripts/Common/control.js could save 3.6KiB (51% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/script…rous.swiper-2.1.min.js could save 1.9KiB (17% reduction) after compression.
Minifying http://www.bjad.com.cn/Scripts/Awesome/Awesome.js could save 1.2KiB (26% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/scripts/common.js could save 1.2KiB (48% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/script…rizontal_pic_scroll.js could save 1KiB (58% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/scripts/jquery.lazyload.js could save 728B (37% reduction) after compression.
Minifying http://www.bjad.com.cn/Scripts/jquery.unobtrusive-ajax.js could save 445B (26% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/scripts/nav.js could save 435B (26% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/scripts/change_fontsize.js could save 114B (24% reduction).

priority - 2Minify 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 17.7KiB (18% reduction).

Minifying http://www.bjad.com.cn/ could save 17.7KiB (18% reduction).

priority - 0Minify 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 4.8KiB (17% reduction).

Minifying http://www.bjad.com.cn/Content/Awesome/jquery-ui.css could save 888B (12% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/article.css could save 563B (17% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/slick.css could save 466B (26% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/banner.css could save 445B (27% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/nav.css could save 440B (12% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/footer.css could save 428B (18% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/common.css could save 426B (16% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Awesome/Awesome.css could save 400B (26% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/linkMap.css could save 278B (27% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/message.css could save 238B (31% reduction).
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/header.css could save 206B (17% reduction) after compression.
Minifying http://www.bjad.com.cn/Content/Areas/Common/css/idangerous.swiper.css could save 177B (18% reduction) after compression.

bjad.com.cn Mobile Resource Breakdown

Total Resources80
Number of Hosts3
Static Resources69
JavaScript Resources22
CSS Resources14

bjad.com.cn mobile page usability

Last tested: 2019-11-09


Mobile Usability Good
99/100

bjad.com.cn Mobile Usability Test Quick Summary


priority - 0Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="http://www.bja…cles/Index/126" class="pic"></a> is close to 1 other tap targets.

bjad.com.cn HTML validation

bjad.com.cn similar domains

Similar domains:
www.bjad.com
www.bjad.net
www.bjad.org
www.bjad.info
www.bjad.biz
www.bjad.us
www.bjad.mobi
www.jad.com.cn
www.bjad.com.cn
www.vjad.com.cn
www.bvjad.com.cn
www.vbjad.com.cn
www.gjad.com.cn
www.bgjad.com.cn
www.gbjad.com.cn
www.hjad.com.cn
www.bhjad.com.cn
www.hbjad.com.cn
www.njad.com.cn
www.bnjad.com.cn
www.nbjad.com.cn
www.bad.com.cn
www.bnad.com.cn
www.bjnad.com.cn
www.bhad.com.cn
www.bjhad.com.cn
www.buad.com.cn
www.bjuad.com.cn
www.bujad.com.cn
www.biad.com.cn
www.bjiad.com.cn
www.bijad.com.cn
www.bkad.com.cn
www.bjkad.com.cn
www.bkjad.com.cn
www.bmad.com.cn
www.bjmad.com.cn
www.bmjad.com.cn
www.bjd.com.cn
www.bjqd.com.cn
www.bjaqd.com.cn
www.bjqad.com.cn
www.bjwd.com.cn
www.bjawd.com.cn
www.bjwad.com.cn
www.bjsd.com.cn
www.bjasd.com.cn
www.bjsad.com.cn
www.bjzd.com.cn
www.bjazd.com.cn
www.bjzad.com.cn
www.bja.com.cn
www.bjax.com.cn
www.bjadx.com.cn
www.bjaxd.com.cn
www.bjas.com.cn
www.bjads.com.cn
www.bjae.com.cn
www.bjade.com.cn
www.bjaed.com.cn
www.bjar.com.cn
www.bjadr.com.cn
www.bjard.com.cn
www.bjaf.com.cn
www.bjadf.com.cn
www.bjafd.com.cn
www.bjac.com.cn
www.bjadc.com.cn
www.bjacd.com.cn

bjad.com.cn Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


bjad.com.cn TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.