Access sfkedu.com. 斯芬克国际艺术教育官网-艺术留学

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value38.5 s

0/100

25%

SI (Speed Index)

Value18.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,440 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.496

16/100

15%

TTI (Time to Interactive)

Value36.4 s

0/100

10%

www.sfkedu.com

1563 ms

reset2016.css

345 ms

global.css

355 ms

common2017.css

381 ms

common2018.css

375 ms

Our browser made a total of 141 requests to load all elements on the main page. We found that 6% of them (9 requests) were addressed to the original Sfkedu.com, 71% (100 requests) were made to Imgs.sfkedu.com and 9% (13 requests) were made to Static.sfkedu.com. The less responsive or slowest element that took the longest time to load (6.2 sec) relates to the external source Imgs.sfkedu.com.

Content Size

13.5 MB

After Optimization

12.1 MB

In fact, the total size of Sfkedu.com main page is 13.5 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. Images take 13.1 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 176.5 kB

Original 203.8 kB
After minification 135.5 kB
After compression 27.3 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. This page needs HTML code to be minified as it can gain 68.3 kB, which is 34% 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 176.5 kB or 87% of the original size.

Image Optimization

-9%

Potential reduce by 1.2 MB

Original 13.1 MB
After minification 11.9 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. Sfkedu images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 3.2 kB

Original 120.3 kB
After minification 120.2 kB
After compression 117.1 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 3.8 kB

Original 31.4 kB
After minification 31.4 kB
After compression 27.6 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. Sfkedu.com needs all CSS files to be minified and compressed as it can save up to 3.8 kB or 12% of the original size.

Requests Now

139

After Optimization

109

The browser has sent 139 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sfkedu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 8 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

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Page has valid source maps

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

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

ZH
Language Claimed

EN
Encoding

UTF-8

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

sfkedu.com

Open Graph description is not detected on the main page of Sfkedu. 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

斯芬克国际艺术教育官网-艺术留学_作品集培训机构

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

www.sfkedu.com

reset2016.css

global.css

common2017.css

common2018.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

www.sfkedu.com

reset2016.css

global.css

common2017.css

common2018.css

baidu.css

reset2019.css

common2019.css

jquery.min.js

jquery.easing.min.js

common2016.js

suspend.js

common.js

swiper.css

swiper.js

jquery.lazyload.js

ydtswt_pc.js

js

logo.png

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