dfrobot.com.cn weekly rank trends

DF创客社区-分享创造的喜悦 -


dfrobot.com.cn daily Alexa rank chart positions last 7 days.


DateRankDelta
Tue, 18 Jun 201953,528-2,606
Mon, 17 Jun 201950,922-24,272
Sun, 16 Jun 201926,650-16,976
Sat, 15 Jun 20199,67455,463
Fri, 14 Jun 201965,137-46,492
Thu, 13 Jun 201918,6456,929
Wed, 12 Jun 201925,574-9,971

dfrobot.com.cn alexa rank chart

Alexa rank is an empirical ranking system for the popularity of the site, based on its daily attendance, unique users and page views. The lower the numerical value of the rank, the more popular the site. For example site with the highest combination of unique visitors and pageviews have Alexa rank value 1.


DF创客社区是一个创客和创客教育的学习和分享平台。为创客,学生和老师提供了丰富的学习资讯、交流论坛、项目分享及学习教程,涵盖开源硬件Arduino,树莓派、Intel Edison、curie、3D打印、图形化编程、Arduino机器人、学校创客空间运营交流。

Compare dfrobot.com.cn alexa rank to other sites

dfrobot.com.cn

dfrobot.com.cn whois

Domain Name: dfrobot.com.cn
ROID: 20100318s10011s88110063-cn
Domain Status: ok
Registrant ID: hc9362107293832
Registrant: 上海智位机器人股份有限公司
Registrant Contact Email: ricky.ye@dfrobot.com
Sponsoring Registrar: 阿里云计算有限公司(万网)
Name Server: n3301.ns.yunjiasu.com
Name Server: n66.ns.yunjiasu.com
Registration Time: 2010-03-18 19:18:50
Expiration Time: 2020-03-18 19:18:50
DNSSEC: unsigned

dfrobot.com.cn server information

dfrobot.com.cn desktop page speed statistics

Site Title: DF创客社区-分享创造的喜悦 -

Dfrobot.com.cn Desktop Speed: 11/100

Dfrobot.com.cn Desktop Speed Test Quick Overview:

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Leverage browser caching

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Leverage browser caching for the following cacheable resources:
http://www.dfrobot.com.cn/community/data/attachmen…91849c045bdfd79b46.jpg (expiration not specified)
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http://www.google-analytics.com/analytics.js (2 hours)
Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
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http://www.dfrobot.com.cn/community/template/jeavi…s/jquery.SuperSlide.js
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http://www.dfrobot.com.cn/community/data/cache/portal.js?xoM
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Optimize CSS Delivery of the following:
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http://www.dfrobot.com.cn/community/data/cache/sty…3_portal_index.css?xoM
http://www.dfrobot.com.cn/community/template/jeavi_metro/style/t4/style.css
Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://dfrobot.com.cn/
http://www.dfrobot.com.cn/community
http://www.dfrobot.com.cn/community/
http://www.dfrobot.com.cn/community/portal.php
Minify JavaScript

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Minify JavaScript for the following resources to reduce their size by 8.2KiB (23% reduction).
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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 733B (5% reduction).
Minifying http://www.dfrobot.com.cn/community/portal.php could save 733B (5% reduction) after compression.

Dfrobot.com.cn Desktop Resources


Total Resources124
Number of Hosts14
Static Resources91
JavaScript Resources14
CSS Resources4

Dfrobot.com.cn Desktop Resource Breakdown

dfrobot.com.cn mobile page speed statistics

Site Title: 导读-最新热门 - DF创客社区-分享创造的喜悦 - 手机版 - Powered by Discuz!

Dfrobot.com.cn Mobile Usability: 96/100

Dfrobot.com.cn Mobile Usability Test Quick Overview:

Size 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 <li class="d cl">该会员没有填写今日想说内容.…飞|2015-07-14|0</li> is close to 1 other tap targets.
The tap target <a href="javascript:;"></a> and 4 others are close to other tap targets.

Dfrobot.com.cn Mobile Speed: 53/100

Dfrobot.com.cn Mobile Speed Test Quick Overview:

Avoid landing page redirects

Your page has 5 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://dfrobot.com.cn/
http://www.dfrobot.com.cn/community
http://www.dfrobot.com.cn/community/
http://www.dfrobot.com.cn/community/portal.php
http://www.dfrobot.com.cn/community/forum.php?mobile=2
http://www.dfrobot.com.cn/community/forum.php?mod=guide&view=hot&mobile=2
Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
http://www.dfrobot.com.cn/community/static/js/mobi…query-1.8.3.min.js?zC5
http://www.dfrobot.com.cn/community/static/js/mobile/common.js?zC5
http://www.dfrobot.com.cn/community/template/comei…uery.flexslider-min.js
http://www.dfrobot.com.cn/community/template/comei…query.mobile.custom.js
Optimize CSS Delivery of the following:
http://www.dfrobot.com.cn/community/static/image/mobile/style.css
http://www.dfrobot.com.cn/community/template/comei…/touch/style/style.css
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:
http://www.dfrobot.com.cn/community/static//image/…/images/pic_select.png (expiration not specified)
http://www.dfrobot.com.cn/community/static/image/mobile/style.css (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/go_r.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…uery.flexslider-min.js (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…query.mobile.custom.js (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/logo.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_1.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_2.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_3.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_4.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_5.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_6.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…touch/style/nv_bbs.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…ouch/style/nv_home.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…/touch/style/nv_nv.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…ch/style/nv_search.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…ouch/style/nv_user.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…ne/touch/style/pin.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…/touch/style/style.css (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u1.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u2.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u3.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u4.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u5.png (expiration not specified)
http://www.dfrobot.com.cn/community/template/comei…ouch/style/u_night.png (expiration not specified)
http://www.dfrobot.com.cn/community/uc_server/images/noavatar_big.gif (expiration not specified)
Prioritize 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 64% of the final above-the-fold content could be rendered with the full HTML response.
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 30.8KiB (30% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/logo.png could save 2.6KiB (56% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_3.png could save 2.5KiB (76% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_2.png could save 2.5KiB (74% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_1.png could save 2.5KiB (74% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_4.png could save 2.4KiB (72% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/data/attachmen…3_500_280.jpg?mobile=2 could save 1.9KiB (22% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…ouch/style/u_night.png could save 1.2KiB (50% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/data/attachmen…2_500_280.jpg?mobile=2 could save 1.1KiB (17% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u5.png could save 1KiB (59% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…touch/style/nv_bbs.png could save 993B (38% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/data/attachmen…1_500_280.jpg?mobile=2 could save 985B (11% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…/touch/style/nv_nv.png could save 964B (35% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/go_r.png could save 907B (71% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…ouch/style/nv_home.png could save 903B (41% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u2.png could save 903B (45% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_6.png could save 895B (74% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…ouch/style/nv_user.png could save 884B (27% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u1.png could save 877B (29% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u4.png could save 832B (33% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…one/touch/style/u3.png could save 804B (36% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…ch/style/nv_search.png could save 791B (30% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/data/attachmen…3_500_280.jpg?mobile=2 could save 708B (5% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/data/attachmen…0_500_280.jpg?mobile=2 could save 630B (5% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…e/touch/style/nv_5.png could save 623B (44% reduction).
Losslessly compressing http://www.dfrobot.com.cn/community/template/comei…ne/touch/style/pin.png could save 569B (32% reduction).
Reduce server response time

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 3.9KiB (28% reduction).
Minifying http://www.dfrobot.com.cn/community/template/comei…query.mobile.custom.js could save 3KiB (50% reduction) after compression.
Minifying http://www.dfrobot.com.cn/community/static/js/mobile/common.js?zC5 could save 874B (11% reduction) after compression.

Dfrobot.com.cn Mobile Resources


Total Resources58
Number of Hosts3
Static Resources26
JavaScript Resources4
CSS Resources2

Dfrobot.com.cn Mobile Resource Breakdown

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