Tools & Wizards About Us
coopervision.com.tw screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

coopervision.com.tw

CooperVision Taiwan | 首頁 - 酷柏光學，隱形眼鏡品牌日拋推薦

Page Load Speed

1.1 sec in total

First Response

14 ms

Resources Loaded

391 ms

Page Rendered

713 ms

coopervision.com.tw screenshot

About Website

Click here to check amazing Cooper Vision content for Taiwan. Otherwise, check out these important facts you probably never knew about coopervision.com.tw

隱形眼鏡品牌日拋推薦：酷柏光學為全球知名軟性隱形眼鏡領導品牌，提供領先的隱形眼鏡材質及光學技術，帶來全新的視覺體驗

Visit coopervision.com.tw

Key Findings

We analyzed Coopervision.com.tw page load time and found that the first response time was 14 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

coopervision.com.tw performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

coopervision.com.tw

14 ms

coopervision.com.tw

19 ms

OtAutoBlock.js

59 ms

otSDKStub.js

78 ms

css_fj51qyV5Kor1aYxLPFoWpddd83ZHITHv-Z9hIosD89Y.css

3 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 89% of them (42 requests) were addressed to the original Coopervision.com.tw, 6% (3 requests) were made to Cdn.cookielaw.org and 2% (1 request) were made to Extend.vimeocdn.com. The less responsive or slowest element that took the longest time to load (90 ms) relates to the external source Cdn.cookielaw.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 913.1 kB (39%)

Content Size

2.3 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coopervision.com.tw main page is 2.3 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. 70% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 76.1 kB

  • Original 89.1 kB
  • After minification 74.4 kB
  • After compression 13.0 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 14.7 kB, which is 17% 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 76.1 kB or 85% of the original size.

Image Optimization

-40%

Potential reduce by 836.0 kB

  • Original 2.1 MB
  • After minification 1.2 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, Cooper Vision needs image optimization as it can save up to 836.0 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 773 B

  • Original 89.2 kB
  • After minification 89.2 kB
  • After compression 88.4 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

-0%

Potential reduce by 135 B

  • Original 86.0 kB
  • After minification 86.0 kB
  • After compression 85.9 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. Coopervision.com.tw has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (34%)

Requests Now

41

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cooper Vision. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

coopervision.com.tw

coopervision.com.tw

14 ms

coopervision.com.tw

coopervision.com.tw

19 ms

OtAutoBlock.js

OtAutoBlock.js

59 ms

otSDKStub.js

otSDKStub.js

78 ms

css_fj51qyV5Kor1aYxLPFoWpddd83ZHITHv-Z9hIosD89Y.css

css_fj51qyV5Kor1aYxLPFoWpddd83ZHITHv-Z9hIosD89Y.css

3 ms

css_DxVuLGgUxR9km5Sw0mCmKWsXFTyufk6nau0bDaw090o.css

css_DxVuLGgUxR9km5Sw0mCmKWsXFTyufk6nau0bDaw090o.css

11 ms

js_dRxexGEii8SoO8DHFrTE9NlR9m84iBYazkjRPxDHfp4.js

js_dRxexGEii8SoO8DHFrTE9NlR9m84iBYazkjRPxDHfp4.js

21 ms

js__NCOFFPbSlg11RIqHRFg_m4hYDeNySpAIuleNVmoT68.js

js__NCOFFPbSlg11RIqHRFg_m4hYDeNySpAIuleNVmoT68.js

22 ms

optanon_wrapper.js

optanon_wrapper.js

21 ms

30700223.js

30700223.js

30 ms

js_iNPw8GEEvBE_nQ0_Gqf8SszS9e9zMH2nknecYLgMHGM.js

js_iNPw8GEEvBE_nQ0_Gqf8SszS9e9zMH2nknecYLgMHGM.js

25 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

29 ms

js_tm8Vn1CbDRvIrVQZx5pXypPWuAZJk0RDxualysYOxZw.js

js_tm8Vn1CbDRvIrVQZx5pXypPWuAZJk0RDxualysYOxZw.js

24 ms

gtm.js

gtm.js

25 ms

gtag.js

gtag.js

25 ms

js_N54fdMmKPfPU5IT5QPFZm_-jPB4Vha7Sc3r3gkfycFc.js

js_N54fdMmKPfPU5IT5QPFZm_-jPB4Vha7Sc3r3gkfycFc.js

26 ms

accordion.frontend.min.js

accordion.frontend.min.js

26 ms

js_YqJb95FXtQUT9poUfaEPWDqny430PlLE9uZ9fCOQRHA.js

js_YqJb95FXtQUT9poUfaEPWDqny430PlLE9uZ9fCOQRHA.js

26 ms

b5077c2d-dd1e-4a49-ab8a-dfdb3cbf7e96.json

b5077c2d-dd1e-4a49-ab8a-dfdb3cbf7e96.json

90 ms

logo.png

logo.png

55 ms

800x450_myday_au.jpg

800x450_myday_au.jpg

9 ms

clariti_family.png

clariti_family.png

10 ms

biofinity-sphere-toric-family.png

biofinity-sphere-toric-family.png

11 ms

super-air-990x800.jpg

super-air-990x800.jpg

10 ms

biomedics-1-day-extra-now-family-800x450.jpg

biomedics-1-day-extra-now-family-800x450.jpg

11 ms

ultraflex_family.png

ultraflex_family.png

12 ms

proclear_family.png

proclear_family.png

13 ms

misight_30pk_front_rgb.jpg

misight_30pk_front_rgb.jpg

12 ms

CV_NavSearch.svg

CV_NavSearch.svg

13 ms

hp-banner-sustainability-mobile.jpg

hp-banner-sustainability-mobile.jpg

16 ms

hp-banner-coopervision-difference-mobile.jpg

hp-banner-coopervision-difference-mobile.jpg

20 ms

hp-banner-no-two-eyes-opt2-mobile.jpg

hp-banner-no-two-eyes-opt2-mobile.jpg

21 ms

homepage-2up_upper_default.png

homepage-2up_upper_default.png

22 ms

homepage-2up_lower_default.png

homepage-2up_lower_default.png

20 ms

global-citizenship-icon.png

global-citizenship-icon.png

15 ms

find-doctor-icon.png

find-doctor-icon.png

17 ms

inventive-icon.png

inventive-icon.png

20 ms

uj-banner-default.jpg

uj-banner-default.jpg

16 ms

about-cta-default.png

about-cta-default.png

24 ms

healthiest.jpg

healthiest.jpg

22 ms

optician_poy.jpg

optician_poy.jpg

22 ms

silmodor.jpg

silmodor.jpg

23 ms

hermes.png

hermes.png

23 ms

fostbook-webfont.woff

fostbook-webfont.woff

22 ms

fostbold-webfont.woff

fostbold-webfont.woff

6 ms

icons.woff

icons.woff

5 ms

fostdemi-webfont.woff

fostdemi-webfont.woff

5 ms

Accessibility Review

coopervision.com.tw accessibility score

98

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.

Best Practices

coopervision.com.tw best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

coopervision.com.tw 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

    JA

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coopervision.com.tw can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed Chinese language. Our system also found out that Coopervision.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

coopervision.com.tw

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