Tools & Wizards About Us
lemi.com.cn screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

lemi.com.cn

深圳市雷铭科技发展有限公司_太阳能户用系统,太阳能能源系统,太阳能微网电站,太阳能应用产品,消费类产品

Page Load Speed

9.3 sec in total

First Response

970 ms

Resources Loaded

7.4 sec

Page Rendered

942 ms

lemi.com.cn screenshot

About Website

Welcome to lemi.com.cn homepage info - get ready to check Lemi best content right away, or after learning these important things about lemi.com.cn

深圳市雷铭科技发展有限公司_雷铭科技是一家为全世界人民提供可再生能源产品和服务的公司，同时也是电源系统生产商、太阳能方案提供商和EPC专家 自2004年开始，雷铭就投身于太阳能行业，我们关注生活在无电地区的人民，致力于为客户提供高质量的产品与服务！

Visit lemi.com.cn

Key Findings

We analyzed Lemi.com.cn page load time and found that the first response time was 970 ms and then it took 8.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

lemi.com.cn performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

lemi.com.cn

970 ms

www.lemi.com.cn

1971 ms

ceccbootstrap.min.css,global.css

485 ms

site.css

738 ms

Home_d3fead8bd16fb4fc06d704767b8557440d0686b0.min.css

751 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 44% of them (16 requests) were addressed to the original Lemi.com.cn, 42% (15 requests) were made to Omo-oss-image.thefastimg.com and 6% (2 requests) were made to 2206225099.p.make.dcloud.portal1.portal.thefastmake.com. The less responsive or slowest element that took the longest time to load (3.3 sec) relates to the external source Omo-oss-image.thefastimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 526.9 kB (15%)

Content Size

3.4 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lemi.com.cn main page is 3.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 64.5 kB

  • Original 77.3 kB
  • After minification 65.3 kB
  • After compression 12.9 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. This page needs HTML code to be minified as it can gain 12.0 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 64.5 kB or 83% of the original size.

Image Optimization

-14%

Potential reduce by 437.3 kB

  • Original 3.1 MB
  • After minification 2.7 MB

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, Lemi needs image optimization as it can save up to 437.3 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-8%

Potential reduce by 13.7 kB

  • Original 174.7 kB
  • After minification 174.7 kB
  • After compression 161.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-26%

Potential reduce by 11.5 kB

  • Original 44.3 kB
  • After minification 38.1 kB
  • After compression 32.8 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. Lemi.com.cn needs all CSS files to be minified and compressed as it can save up to 11.5 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (35%)

Requests Now

34

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lemi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lemi.com.cn

lemi.com.cn

970 ms

www.lemi.com.cn

www.lemi.com.cn

1971 ms

ceccbootstrap.min.css,global.css

ceccbootstrap.min.css,global.css

485 ms

site.css

site.css

738 ms

Home_d3fead8bd16fb4fc06d704767b8557440d0686b0.min.css

Home_d3fead8bd16fb4fc06d704767b8557440d0686b0.min.css

751 ms

ceccjquery.min.js,require.min.js,lib.min.js,page.min.js

ceccjquery.min.js,require.min.js,lib.min.js,page.min.js

499 ms

common.min.js

common.min.js

540 ms

b29ab50c4df149fca1c395b990db2ec6.css

b29ab50c4df149fca1c395b990db2ec6.css

1375 ms

2d564f4fa4054bc5955fc4d0c82ea91c.js

2d564f4fa4054bc5955fc4d0c82ea91c.js

586 ms

4f0647723de542f2b587572d8a357974.js

4f0647723de542f2b587572d8a357974.js

1809 ms

34b3fc71-5f3c-4572-9dc8-4082b06714ef.png

34b3fc71-5f3c-4572-9dc8-4082b06714ef.png

555 ms

5021757a-df9a-4afd-9437-5057f8e2eaa4.png

5021757a-df9a-4afd-9437-5057f8e2eaa4.png

857 ms

s.png

s.png

249 ms

dacc86c8-8217-4e04-90f0-0a4fb7c93c7b.jpg

dacc86c8-8217-4e04-90f0-0a4fb7c93c7b.jpg

1746 ms

b159e87d-09f6-4c0a-909d-ea0b3f83c632.png

b159e87d-09f6-4c0a-909d-ea0b3f83c632.png

1506 ms

5caab759-ee2e-4c3f-a5ca-59247848178b.jpg

5caab759-ee2e-4c3f-a5ca-59247848178b.jpg

1497 ms

5c905bea-4f7d-4358-9a0b-bc2de7f4b97c.jpg

5c905bea-4f7d-4358-9a0b-bc2de7f4b97c.jpg

1175 ms

bfb8ded3-d5ae-498b-bb19-b30a2f344201.jpg

bfb8ded3-d5ae-498b-bb19-b30a2f344201.jpg

1220 ms

29402a5d-9cbd-49b6-b9dc-1398c4ee96b9.jpg

29402a5d-9cbd-49b6-b9dc-1398c4ee96b9.jpg

1668 ms

4052a82c-b844-4ada-bacc-fed0c4857760.png

4052a82c-b844-4ada-bacc-fed0c4857760.png

1716 ms

7930ce8f-bf32-4ff8-8ffe-49412d721ead.png

7930ce8f-bf32-4ff8-8ffe-49412d721ead.png

1783 ms

accf89c9-0f05-4d47-82c0-a29f2e1ab2d8.png

accf89c9-0f05-4d47-82c0-a29f2e1ab2d8.png

1778 ms

81e103be-a99b-4951-84cd-6a2c88b60b1a.png

81e103be-a99b-4951-84cd-6a2c88b60b1a.png

1801 ms

swxv55qz5bt97ei8.png

swxv55qz5bt97ei8.png

3345 ms

3ca8e08f-ebd8-4e4b-9fc9-52af4a7000dd.png

3ca8e08f-ebd8-4e4b-9fc9-52af4a7000dd.png

2180 ms

b4a4c8ee-844a-47c2-aa0a-6b19afeec338.png

b4a4c8ee-844a-47c2-aa0a-6b19afeec338.png

2295 ms

a65a7cdc-e596-4418-a415-c5463917af2a.jpg

a65a7cdc-e596-4418-a415-c5463917af2a.jpg

440 ms

swiper.min.js

swiper.min.js

273 ms

scripts

scripts

286 ms

sale

sale

295 ms

cmsAjax.min.js

cmsAjax.min.js

263 ms

md.min.js

md.min.js

273 ms

pl_util.min.js

pl_util.min.js

280 ms

sensorsdataNew.js

sensorsdataNew.js

272 ms

languages

languages

289 ms

index.js

index.js

1460 ms

Accessibility Review

lemi.com.cn accessibility score

79

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

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.

Impact

Issue

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

lemi.com.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

lemi.com.cn SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lemi.com.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 Lemi.com.cn main page’s claimed encoding is . 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

lemi.com.cn

Open Graph description is not detected on the main page of Lemi. 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: