dhtech.com.cn

Tasks

Select one version of your site as main and make a redirect from other versions to that one.
Avoid using deprecated HTML tags.
Implement the viewport meta tag.
Use "H" tags.

SEO

URL

Domain : www.dhtech.com.cn/

Character length : 18

Title

首页 - 北京大华电子集团

Keywords (meta keywords)

Good! The website does not use “meta keywords”.

Open Graph Protocol

Error! The website does not use the OG (Open Graph) protocol.

Dublin Core

Dublin Core is not used

Underscores in the URLs

Good! No underscore (_) found in the URLs.

Search engine friendly URLs

Good! The website uses SEO friendly URLs.

Checking the robots.txt file

The robots.txt file is missing!

Social

Social Engagement

No info found.

Content

Doctype

Missing doctype element

Encoding

Perfect! The character encoding is set: UTF-8.

Language

Error! No language localization is found.

Title

首页 - 北京大华电子集团

Character length : 13

Good! The title’s length is between 10 and 70 characters.

Text / HTML ratio

Ratio : 12%

Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.

Headings

H1	H2	H3	H4	H5	H6
0	0	0	0	0	0

No "H" tags found

Heading structure in the source code

Word cloud

公司简介3
联系方式2
资质荣誉2

Keyword matrix

word	title	descriptions	heading
公司简介
联系方式
资质荣誉

404 Page

The website has a 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 20 images on this web page.

Alternate attributes for the following 12 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

http://www.dhtech.com.cn/skin/default/images/more.png (1 occurrences)

Technologies

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

Error! The web address is accessible with and without www!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Printability

Suggestion! Unfortunately, no printer-friendly CSS found.

Meta Tag (viewport tag, mobile devices)

Error! The meta tag named viewport is missing.

Speed test

Server response time

The server response time is fast enough.

Table layout

Good! No nested tables found.

Number of HTTP resources

Number of source domains

Render blocking resources

The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files

http://1.rc.xiniu.com/js/jq/jquery-2.min.js
http://1.rc.xiniu.com/js/pb/1/Public.js
http://1.rc.xiniu.com/js/pb/flexible.js
http://f1.webshare.mob.com/code/mob-share.js?appkey=11e96e550715c
http://m.dhtech.com.cn/m/Js/index.js?d=2018051602352221288
http://m.dhtech.com.cn/Admin/WxShare/shareWeixin.js

List of render blocking css files

http://0.rc.xiniu.com/.. /CgAGe1r7ou6AXPZvAAA5vCBaoys768.css?d=201...
http://f1.webshare.mob.com/code/mob-share.css

Speed test – Javascript

Javascript

Error! Too many javascript files found which slows down the page load on the website.

http://www.dhtech.com.cn/skin/default/js/base.js
http://www.dhtech.com.cn/skin/default/js/jquery-1.7.2.min.js
http://www.dhtech.com.cn/skin/default/js/jquery.bigautocomplete.js
http://www.dhtech.com.cn/skin/default/js/chanpinlist.js
http://www.dhtech.com.cn/skin/default/js/dropmenu44.js
http://www.dhtech.com.cn/skin/default/js/jquery.min_v1.0.js
http://www.dhtech.com.cn/skin/default/js/slides.min.jquery_v1.0.js
http://www.dhtech.com.cn/skin/default/js/productroll8.js
http://www.dhtech.com.cn/skin/default/js/kefu.js

File size of all javascript files combined

175.51KB

Javascript minifying

You can save 1.6KB (35% compression) on the analysed URL by minifying the javascript files.

Speed test – CSS

CSS

Error! Too many CSS files detected that slows down the page load.

http://www.dhtech.com.cn/skin/default/css/common.css
http://www.dhtech.com.cn/skin/default/css/zzsc.css
http://www.dhtech.com.cn/skin/default/css/jquery.bigautocomplete.css
http://www.dhtech.com.cn/skin/default/css/dropmenu44.css
http://www.dhtech.com.cn/skin/default/css/picwordtext5.css
http://www.dhtech.com.cn/skin/default/css/productroll8.css
http://www.dhtech.com.cn/skin/default/css/bottommenu.css

File size of all css files combined

21.65KB

CSS minifying

You can save 915B (19% compression) on the analysed URL by minifying the CSS files.

By minifying http://0.rc.xiniu.com/.. /CgAGe1r7ou6AXPZvAAA5vCBaoys768.css?d=201... you can save 727B (21% compression rate)
By minifying http://f1.webshare.mob.com/code/mob-share.css you can save 188B (14% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

34.90KB

Gzip compression

Error! By using Gzip you can save 26.8KB (66% compression) on your site.

By compressing http://f1.webshare.mob.com/code/mob-share.js?appkey=11e96e550715c you can save 26.8KB (66% compression rate)

Speed test – Browser cache

Number of static resources (image, JS, CSS)

Browser cache

The browser cache is not set correctly for all elements.

URL	Duration
http://1.rc.xiniu.com/js/jq/jquery-2.min.js	Expiry time is not specified
http://1.rc.xiniu.com/js/pb/1/Public.js	Expiry time is not specified
http://1.rc.xiniu.com/js/pb/flexible.js	Expiry time is not specified
http://f1.webshare.mob.com/code/mob-share.css	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_10@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_11@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_14@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_16@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_1@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_22@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_24@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_5@2x_b.png	Expiry time is not specified
http://f1.webshare.mob.com/code/res/icon/sns_icon_6@2x_b.png	Expiry time is not specified
http://m.dhtech.com.cn/Admin/WxShare/shareWeixin.js	Expiry time is not specified
http://m.dhtech.com.cn/Images/img_loading.png	Expiry time is not specified

Speed test – Images

File size of all images combined

340.32KB

Image optimisation

You can save 78.9KB (67% compression) by optimising the images below:

By lossless compressing the http://0.rc.xiniu.com/.. /CgAGfFp_nruAfYRdAACBHAvbRsQ328.jpg you can save 25.6KB (79%) data.
By lossless compressing the http://0.rc.xiniu.com/.. /CgAGTFlTB9uAboyeAABQBdwQfsQ930.jpg you can save 17.1KB (85%) data.
By lossless compressing the http://0.rc.xiniu.com/.. /CgAGe1p_70iAQk40AABhJIWI1AQ161.jpg you can save 16.2KB (66%) data.
By lossless compressing the http://0.rc.xiniu.com/.. /CgAGS1lVsnqAIx5jAABBtQsEwOM659.jpg you can save 11.1KB (67%) data.
By lossless compressing the http://0.rc.xiniu.com/.. /CgAGfFpcOTCAA-68AAAbLHsdZF8982.jpg you can save 1.9KB (29%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /yf.png?d=20180516113136285 you can save 1.1KB (26%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /xn_mc_index_1_title.png?d=20180125144555... you can save 950B (84%) data.
By lossless compressing the http://m.dhtech.com.cn/Images/img_loading.png you can save 877B (92%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /sydh.png?d=20180516113136285 you can save 874B (56%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /fx.png?d=20180516113136285 you can save 873B (53%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /gy.png?d=20180516113136285 you can save 853B (45%) data.
By lossless compressing the http://1.rc.xiniu.com/.. /fl.png?d=20180516113136285 you can save 841B (85%) data.
By lossless compressing the http://0.rc.xiniu.com/.. /CgAGe1ridHSAYHGxAAAMK0n8OHs602.png you can save 441B (15%) data.
By lossless compressing the http://f1.webshare.mob.com/code/res/icon/sns_icon_10@2x_b.png you can save 241B (13%) data.

Links

We found a total of 34 different links.
Internal links: 34

External links:

Link text (anchor)	Link strength

Internal links:

Link text (anchor)	Link strength
http://www.dhtech.com.cn
首页
公司简介
公司简介
资质荣誉
企业文化
组织架构
产品信息
新闻动态
公司新闻
行业动态
应用案例
诚聘英才
联系我们
联系方式
客户留言
http://www.dhtech.com.cn/cpzs/dyl
http://www.dhtech.com.cn/cpzs/dyl/zldy/gxnxdy/2015-05-04/108.html
http://www.dhtech.com.cn/cpzs/dyl/zldy/gxnxdy/2015-05-04/109.html
http://www.dhtech.com.cn/cpzs/dyl/zldy/jcxdy/2015-05-04/96.html
http://www.dhtech.com.cn/cpzs/dyl/zldzfz/2015-05-04/111.html
http://www.dhtech.com.cn/cpzs/dyl/zldy/jmxdy/2015-05-04/102.html
http://www.dhtech.com.cn/cpzs/dyl/zldy/gxnxdy/2015-05-04/105.html
http://www.dhtech.com.cn/gsjj
http://www.dhtech.com.cn/gsjj/2014-05-04/1.html
http://www.dhtech.com.cn/cpzs
DH179D系列
DH1798系列
DH1718S系列
DH2794A系列
DH1765系列
http://www.dhtech.com.cn/cpzs/dyl/zldy/jmxdy/2015-05-04/103.html
DH1766系列
联系方式

Website security

118.145.6.113

External hidden links

Good! No hidden external links found

Looking for eval()

Good! No eval(bas64_decode()) scripts are found

Checking for XSS vulnerability

No XSS vulnerability found

Email encryption

Good! We have not found any unencrypted email addresses.

Sites on same ip

suntex-systems.com.cn

aerodreamworks.com

hzsolidworks.com

zjsolidworks.com

lighttech.cn

Icons

Favicon

Good! The website uses favicon.

Typos

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SEO report of dhtech.com.cn