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

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

fzcenter.en.alibaba.com

Fuzhou Center Tech Co., Ltd. - Refractometers, Jewelry Magnifier

Page Load Speed

3.1 sec in total

First Response

32 ms

Resources Loaded

2.6 sec

Page Rendered

486 ms

fzcenter.en.alibaba.com screenshot

About Website

Welcome to fzcenter.en.alibaba.com homepage info - get ready to check Fz Center En Alibaba best content for China right away, or after learning these important things about fzcenter.en.alibaba.com

Fuzhou Center Tech Co., Ltd., Experts in Manufacturing and Exporting Refractometers, Jewelry Magnifier and 0 more Products.

Visit fzcenter.en.alibaba.com

Key Findings

We analyzed Fzcenter.en.alibaba.com page load time and found that the first response time was 32 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

fzcenter.en.alibaba.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value6,470 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.36

30/100

15%

TTI (Time to Interactive)

Value27.3 s

0/100

10%

Network Requests Diagram

fzcenter.en.alibaba.com

32 ms

fzcenter.en.alibaba.com

870 ms

116 ms

115 ms

header.css

219 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Fzcenter.en.alibaba.com, 43% (33 requests) were made to S.alicdn.com and 9% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Img.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.0 MB (59%)

Content Size

6.7 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Fzcenter.en.alibaba.com main page is 6.7 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. Only a small number of websites need less resources to load. Javascripts take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 344.7 kB

  • Original 432.4 kB
  • After minification 428.5 kB
  • After compression 87.7 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 344.7 kB or 80% of the original size.

Image Optimization

-24%

Potential reduce by 137.1 kB

  • Original 575.4 kB
  • After minification 438.3 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, Fz Center En Alibaba needs image optimization as it can save up to 137.1 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 3.2 MB

  • Original 5.3 MB
  • After minification 5.3 MB
  • After compression 2.1 MB

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 3.2 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 284.4 kB

  • Original 396.2 kB
  • After minification 345.3 kB
  • After compression 111.8 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. Fzcenter.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 284.4 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (65%)

Requests Now

65

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Fz Center 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 29 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

fzcenter.en.alibaba.com

fzcenter.en.alibaba.com

32 ms

fzcenter.en.alibaba.com

fzcenter.en.alibaba.com

870 ms

116 ms

115 ms

header.css

header.css

219 ms

header.js

header.js

265 ms

101 ms

web-index.css

web-index.css

205 ms

web-index.css

web-index.css

204 ms

web-index.css

web-index.css

220 ms

web-index.css

web-index.css

225 ms

web-index.css

web-index.css

222 ms

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

215 ms

344 ms

228 ms

index.js

index.js

228 ms

226 ms

O1CN01kpueUS231orwYDJAV_!!6000000007196-2-tps-132-34.png

O1CN01kpueUS231orwYDJAV_!!6000000007196-2-tps-132-34.png

720 ms

H5374269571eb47dfb920393308de21f0f.jpg

H5374269571eb47dfb920393308de21f0f.jpg

1065 ms

Hef3015043cc1484aae62065c44e32e01i.jpg_q80.jpg

Hef3015043cc1484aae62065c44e32e01i.jpg_q80.jpg

420 ms

O1CN01gZ3lTu1XIFHZfHHGr_!!6000000002900-2-tps-36-36.png

O1CN01gZ3lTu1XIFHZfHHGr_!!6000000002900-2-tps-36-36.png

793 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

1072 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

1071 ms

H211bd77eb7324fad83f67a3dc03b4179F.jpg

H211bd77eb7324fad83f67a3dc03b4179F.jpg

1071 ms

roboto-regular.woff

roboto-regular.woff

180 ms

roboto-medium.woff

roboto-medium.woff

180 ms

roboto-light.woff

roboto-light.woff

181 ms

roboto-thin.woff

roboto-thin.woff

180 ms

roboto-bold.woff

roboto-bold.woff

278 ms

awsc.js

awsc.js

428 ms

260 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

241 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

240 ms

O1CN01REbO5M1iNFNVX2yeq_!!6000000004400-2-tps-1920-200.png

O1CN01REbO5M1iNFNVX2yeq_!!6000000004400-2-tps-1920-200.png

1504 ms

O1CN01lsY1P61yvAejjEVHt_!!6000000006640-2-tps-584-560.png

O1CN01lsY1P61yvAejjEVHt_!!6000000006640-2-tps-584-560.png

1500 ms

H770ba5fba7594d9eb2387ccc8cfa3d38V.jpg

H770ba5fba7594d9eb2387ccc8cfa3d38V.jpg

745 ms

H46a79235ede0463c86b0868a8cdd8e82W.jpg

H46a79235ede0463c86b0868a8cdd8e82W.jpg

404 ms

164 ms

icon-font.woff

icon-font.woff

230 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

333 ms

personTipsInfo.do

personTipsInfo.do

214 ms

eg.js

eg.js

172 ms

sc.globalxman.appscene

sc.globalxman.appscene

61 ms

index.js

index.js

93 ms

footer.css

footer.css

29 ms

et_n.js

et_n.js

70 ms

um.js

um.js

69 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

19 ms

index.js

index.js

196 ms

index.js

index.js

193 ms

light0.5x.png

light0.5x.png

193 ms

7.gif

7.gif

192 ms

pages_version.html

pages_version.html

512 ms

defer-common.js

defer-common.js

252 ms

i.alicdn.com

i.alicdn.com

467 ms

index.js

index.js

151 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

101 ms

wu.json

wu.json

393 ms

baxiaCommon.js

baxiaCommon.js

282 ms

rp

rp

1082 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

325 ms

index.css

index.css

248 ms

store-proxy.html

store-proxy.html

242 ms

countryCurrencyDataService

countryCurrencyDataService

520 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

210 ms

personRoleInfo.do

personRoleInfo.do

192 ms

notification.do

notification.do

474 ms

index.js

index.js

73 ms

index.web.css

index.web.css

60 ms

index.web.js

index.web.js

82 ms

availableSurveyQuery.json

availableSurveyQuery.json

103 ms

um.json

um.json

73 ms

iconfont.woff

iconfont.woff

18 ms

iconfont.woff

iconfont.woff

20 ms

getUmid.do

getUmid.do

11 ms

data

data

14 ms

Accessibility Review

fzcenter.en.alibaba.com accessibility score

43

Accessibility Issues

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

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

High

Image elements do not have [alt] attributes

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.

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

fzcenter.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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

fzcenter.en.alibaba.com SEO score

71

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

High

Document doesn't have a valid hreflang

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 Fzcenter.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 Fzcenter.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

fzcenter.en.alibaba.com

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