Access ollyit.cn. 北京奥立嘉业电子有限公司 - 专业提供电线、电缆等专业弱电产品

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

www.ollyit.cn

16993 ms

common.css

9732 ms

style.css

9182 ms

jquery.min.js

16050 ms

functions.js

6161 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Ollyit.cn, 69% (41 requests) were made to Olly.host225.zhujiwu.cn and 8% (5 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Olly.host225.zhujiwu.cn.

Content Size

163.5 kB

After Optimization

83.5 kB

In fact, the total size of Ollyit.cn main page is 163.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 65.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 17.6 kB

Original 23.9 kB
After minification 23.2 kB
After compression 6.3 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 17.6 kB or 73% of the original size.

Image Optimization

-18%

Potential reduce by 11.5 kB

Original 65.6 kB
After minification 54.1 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Ollyit needs image optimization as it can save up to 11.5 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 41.0 kB

Original 60.4 kB
After minification 54.5 kB
After compression 19.3 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 41.0 kB or 68% of the original size.

CSS Optimization

-72%

Potential reduce by 9.9 kB

Original 13.6 kB
After minification 9.3 kB
After compression 3.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Ollyit.cn needs all CSS files to be minified and compressed as it can save up to 9.9 kB or 72% of the original size.

Requests Now

After Optimization

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ollyit. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ollyit.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ollyit.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

ollyit.cn

Open Graph description is not detected on the main page of Ollyit. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Report Summary

Performance

Accessibility

Best Practices

SEO

北京奥立嘉业电子有限公司 - 专业提供电线、电缆等专业弱电产品 - http://www.ollyit.com

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.ollyit.cn

common.css

style.css

jquery.min.js

functions.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.ollyit.cn

common.css

style.css

jquery.min.js

functions.js

iepngfix_tilebg.js

stats

v5kf.js

h.js

top_tel.png

nav_bg1.jpg

nav_bg2.jpg

box_bg1.jpg

box_bg3.jpg

page-header.jpg

86029bad8aca8f85e40ee8961e919163

201467155716.jpg

201467164655.jpg

more.png

2012521212111.jpg

logo.png

201467174726.jpg

201467181313.jpg

201467175144.jpg

shell_v2.js

v5_float.js

logger.js

bds_s_v2.js

201467175741.jpg

20146715397.jpg

2012111014411.jpg

201467181221.jpg

201355113132.jpg

20146718732.jpg

bdsstyle.css

r6.gif

20146718652.jpg

2014671869.jpg

201467181741.gif

20146718171.jpg

20146718820.jpg

201467181634.jpg

201467181455.jpg