Tools & Wizards About Us
srdpower.en.alibaba.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

srdpower.en.alibaba.com

Company Overview - Henlv Technology (Shanghai) Co., Ltd.

Page Load Speed

2.6 sec in total

First Response

368 ms

Resources Loaded

1.9 sec

Page Rendered

289 ms

srdpower.en.alibaba.com screenshot

About Website

Visit srdpower.en.alibaba.com now to see the best up-to-date Srdpower En Alibaba content for China and also check out these interesting facts you probably never knew about srdpower.en.alibaba.com

Henlv Technology (Shanghai) Co., Ltd. Products:switching power supply,ac dc converter,dc dc converter,power module,Switch Power Supply

Visit srdpower.en.alibaba.com

Key Findings

We analyzed Srdpower.en.alibaba.com page load time and found that the first response time was 368 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

srdpower.en.alibaba.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value3,410 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

srdpower.en.alibaba.com

368 ms

srdpower.en.alibaba.com

236 ms

33 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

41 ms

index.js

71 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Srdpower.en.alibaba.com, 42% (16 requests) were made to S.alicdn.com and 8% (3 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 968.5 kB (45%)

Content Size

2.2 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Srdpower.en.alibaba.com main page is 2.2 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. 65% of websites need less resources to load. Javascripts take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 284.3 kB

  • Original 364.6 kB
  • After minification 364.0 kB
  • After compression 80.3 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 284.3 kB or 78% of the original size.

Image Optimization

-16%

Potential reduce by 37.6 kB

  • Original 234.8 kB
  • After minification 197.2 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, Srdpower En Alibaba needs image optimization as it can save up to 37.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-41%

Potential reduce by 646.6 kB

  • Original 1.6 MB
  • After minification 1.6 MB
  • After compression 927.3 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 646.6 kB or 41% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (56%)

Requests Now

36

After Optimization

16

  • AJAX
  • Images
  • JavaScript

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Srdpower En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

srdpower.en.alibaba.com

srdpower.en.alibaba.com

368 ms

srdpower.en.alibaba.com

srdpower.en.alibaba.com

236 ms

33 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

41 ms

index.js

index.js

71 ms

index.js

index.js

41 ms

renderHeader.js

renderHeader.js

43 ms

awsc.js

awsc.js

44 ms

13 ms

7.gif

7.gif

255 ms

et_n.js

et_n.js

40 ms

um.js

um.js

129 ms

O1CN01kdASbu1gwr9DpPPgA_!!6000000004207-2-tps-290-296.png

O1CN01kdASbu1gwr9DpPPgA_!!6000000004207-2-tps-290-296.png

33 ms

H5a8808ad8c764b36ba7d57e5f00da906J.png

H5a8808ad8c764b36ba7d57e5f00da906J.png

691 ms

O1CN01eP7P8d1y1kdsWFgqQ_!!6000000006519-2-tps-1920-200.png

O1CN01eP7P8d1y1kdsWFgqQ_!!6000000006519-2-tps-1920-200.png

23 ms

H53aef883752b479c9b0feb31451f712cz.jpg

H53aef883752b479c9b0feb31451f712cz.jpg

506 ms

switching-power-supply-60w-Ac-Dc-Converter.jpg_250x250.jpg

switching-power-supply-60w-Ac-Dc-Converter.jpg_250x250.jpg

496 ms

Electronic-Components-Supplies-AC-DC-Power-Supply.jpg_250x250.jpg

Electronic-Components-Supplies-AC-DC-Power-Supply.jpg_250x250.jpg

556 ms

12v-4a-220v-ac-12v-dc-converter.png_250x250.jpg

12v-4a-220v-ac-12v-dc-converter.png_250x250.jpg

493 ms

Electronic-Components-Supplies-AC-DC-Power-Supply.jpg_350x350.jpg

Electronic-Components-Supplies-AC-DC-Power-Supply.jpg_350x350.jpg

496 ms

dc-dc-step-down-power-supply-non.jpg_350x350.jpg

dc-dc-step-down-power-supply-non.jpg_350x350.jpg

640 ms

TB1Z8vPSFXXXXXLXVXXXXXXXXXX-1519-200.png

TB1Z8vPSFXXXXXLXVXXXXXXXXXX-1519-200.png

174 ms

no-video-large.png

no-video-large.png

156 ms

H6bc05ce25bed4b99a6b9e970cfb7ff07y.jpg

H6bc05ce25bed4b99a6b9e970cfb7ff07y.jpg

689 ms

H5f3f77ae46b94bb4b2ad1d6bd5831f3cy.jpg

H5f3f77ae46b94bb4b2ad1d6bd5831f3cy.jpg

412 ms

H434e9377a71948c88f8ab711109d3f0b5.jpg

H434e9377a71948c88f8ab711109d3f0b5.jpg

650 ms

220vac-to-5v-single-output-open-frame.jpg_480x480.jpg

220vac-to-5v-single-output-open-frame.jpg_480x480.jpg

1325 ms

RS232-Power-Line-Communication-5v-9v-12V.jpg_350x350.jpg

RS232-Power-Line-Communication-5v-9v-12V.jpg_350x350.jpg

944 ms

4-1-ultra-wide-input-voltage-isolated.jpg_480x480.jpg

4-1-ultra-wide-input-voltage-isolated.jpg_480x480.jpg

1071 ms

Mini-size-1w-dc-dc-power-supply.jpg_350x350.jpg

Mini-size-1w-dc-dc-power-supply.jpg_350x350.jpg

992 ms

TB139qIiv2H8KJjy0FcXXaDlFXa-1000-600.jpg

TB139qIiv2H8KJjy0FcXXaDlFXa-1000-600.jpg

222 ms

H358be201640b468fb86958570fff90d0D.jpg

H358be201640b468fb86958570fff90d0D.jpg

767 ms

Heb190ebd55754b058776916e84f77a71i.jpg

Heb190ebd55754b058776916e84f77a71i.jpg

1089 ms

wu.json

wu.json

98 ms

um.json

um.json

52 ms

getUmid.do

getUmid.do

98 ms

eg.js

eg.js

3 ms

index.js

index.js

4 ms

Accessibility Review

srdpower.en.alibaba.com accessibility score

73

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

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

srdpower.en.alibaba.com best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

srdpower.en.alibaba.com SEO score

79

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Srdpower.en.alibaba.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Srdpower.en.alibaba.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

srdpower.en.alibaba.com

Open Graph data is detected on the main page of Srdpower En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: