Access coffeecenter.com.tw. 咖啡研磨、咖啡豆烘焙、咖啡機專賣店、咖啡商店街--COFFEE CENTER

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value21.9 s

0/100

25%

SI (Speed Index)

Value22.3 s

0/100

10%

TBT (Total Blocking Time)

Value470 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

coffeecenter.com.tw

863 ms

index.asp

1307 ms

analytics.js

28 ms

gtm.js

73 ms

coffee.css

225 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 93% of them (113 requests) were addressed to the original Coffeecenter.com.tw, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (6.2 sec) belongs to the original domain Coffeecenter.com.tw.

Content Size

7.0 MB

After Optimization

3.7 MB

In fact, the total size of Coffeecenter.com.tw main page is 7.0 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. 60% of websites need less resources to load. Images take 6.7 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 104.0 kB

Original 115.4 kB
After minification 58.4 kB
After compression 11.4 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 57.0 kB, which is 49% 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 104.0 kB or 90% of the original size.

Image Optimization

-47%

Potential reduce by 3.2 MB

Original 6.7 MB
After minification 3.5 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, COFFEE CENTER needs image optimization as it can save up to 3.2 MB or 47% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-43%

Potential reduce by 87.1 kB

Original 204.0 kB
After minification 203.8 kB
After compression 117.0 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 87.1 kB or 43% of the original size.

CSS Optimization

-36%

Potential reduce by 4.4 kB

Original 12.0 kB
After minification 12.0 kB
After compression 7.6 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. Coffeecenter.com.tw needs all CSS files to be minified and compressed as it can save up to 4.4 kB or 36% of the original size.

Requests Now

115

After Optimization

The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COFFEE CENTER. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

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.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

BIG5

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coffeecenter.com.tw 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 Coffeecenter.com.tw main page’s claimed encoding is big5. 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

coffeecenter.com.tw

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

Report Summary

Performance

Accessibility

Best Practices

SEO

咖啡研磨、咖啡豆烘焙、咖啡機專賣店、咖啡商店街--COFFEE CENTER

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

coffeecenter.com.tw

index.asp

analytics.js

gtm.js

coffee.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

coffeecenter.com.tw

index.asp

analytics.js

gtm.js

coffee.css

lanrenzhijia.css

jquery.min.js

lanrenzhijia.js

AC_RunActiveContent.js

js-image-slider1.css

js-image-slider2.css

jquery-latest.min.js

jquery.curator_slider.js

jquery-latest.js

jquery-tooltip.js

coffee.css

ddmenu.css

ddmenu.js

jquery.mobile-1.0rc2.customized.min.js

jquery.easing.1.3.js

jquery.hoverIntent.minified.js

diapo.js

lanrenzhijia.css

collect

collect

destination

ga-audiences

button.png

button1.png

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22110(1).jpg

04110B370(3).jpg

03110S370(1).jpg

E8III370(1).jpg

WE8370(1).jpg

A9370(1).jpg

ena8370(1).jpg

44660(1).jpg

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coffeemap.jpg

banner.jpg

title.png

top-04.png