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celxpert.com.tw screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

celxpert.com.tw

Professional Lithium Battery Supplier | Celxpert Taiwan

Page Load Speed

6.8 sec in total

First Response

608 ms

Resources Loaded

5 sec

Page Rendered

1.2 sec

celxpert.com.tw screenshot

About Website

Visit celxpert.com.tw now to see the best up-to-date Celxpert content and also check out these interesting facts you probably never knew about celxpert.com.tw

Founded in 1997, Celxpert is a professional lithium battery supplier, focusing on the design and manufacture of batteries, providing lithium batteries that can be used in various fields.

Visit celxpert.com.tw

Key Findings

We analyzed Celxpert.com.tw page load time and found that the first response time was 608 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

celxpert.com.tw performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value14.5 s

0/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value1.301

1/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

celxpert.com.tw

608 ms

celxpert.com.tw

756 ms

www.celxpert.com.tw

1686 ms

js

79 ms

kfvihv9uxi

55 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 74% of them (20 requests) were addressed to the original Celxpert.com.tw, 7% (2 requests) were made to Googletagmanager.com and 7% (2 requests) were made to Clarity.ms. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Celxpert.com.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.1 kB (8%)

Content Size

463.3 kB

After Optimization

425.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Celxpert.com.tw main page is 463.3 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. 35% of websites need less resources to load. Images take 318.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.9 kB

  • Original 32.5 kB
  • After minification 32.5 kB
  • After compression 7.6 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 24.9 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 1.8 kB

  • Original 318.2 kB
  • After minification 316.4 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. Celxpert images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 283 B

  • Original 21.6 kB
  • After minification 21.6 kB
  • After compression 21.4 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

-12%

Potential reduce by 11.1 kB

  • Original 91.1 kB
  • After minification 91.1 kB
  • After compression 80.0 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. Celxpert.com.tw needs all CSS files to be minified and compressed as it can save up to 11.1 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (33%)

Requests Now

18

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Celxpert. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

celxpert.com.tw

celxpert.com.tw

608 ms

celxpert.com.tw

celxpert.com.tw

756 ms

www.celxpert.com.tw

www.celxpert.com.tw

1686 ms

js

js

79 ms

kfvihv9uxi

kfvihv9uxi

55 ms

frontend.css

frontend.css

1108 ms

index.css

index.css

1321 ms

frontend.js

frontend.js

1852 ms

script.js

script.js

1041 ms

12310

12310

773 ms

loading.svg

loading.svg

313 ms

767

767

1178 ms

767

767

1862 ms

14696

14696

1292 ms

more-btn.png

more-btn.png

1611 ms

clarity.js

clarity.js

17 ms

js

js

113 ms

analytics.js

analytics.js

21 ms

collect

collect

14 ms

news-background.png

news-background.png

487 ms

Rubik-Medium.woff

Rubik-Medium.woff

65 ms

Rubik-Regular.woff

Rubik-Regular.woff

190 ms

Rubik-Light.woff

Rubik-Light.woff

128 ms

Rubik-Bold.woff

Rubik-Bold.woff

197 ms

OpenSans-Bold.woff

OpenSans-Bold.woff

316 ms

Rubik-Black.woff

Rubik-Black.woff

255 ms

c.gif

c.gif

7 ms

Accessibility Review

celxpert.com.tw accessibility score

66

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

Best Practices

celxpert.com.tw 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

Missing source maps for large first-party JavaScript

SEO Factors

celxpert.com.tw SEO score

84

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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 uses legible font sizes

High

Tap targets are not sized appropriately

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 Celxpert.com.tw 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 Celxpert.com.tw 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

celxpert.com.tw

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