Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

yfsresearch.com

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Page Load Speed

25 sec in total

First Response

273 ms

Resources Loaded

18.4 sec

Page Rendered

6.4 sec

yfsresearch.com screenshot

About Website

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Visit yfsresearch.com

Key Findings

We analyzed Yfsresearch.com page load time and found that the first response time was 273 ms and then it took 24.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

yfsresearch.com performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value1.444

0/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

yfsresearch.com

273 ms

www.yfsresearch.com

603 ms

api.js

916 ms

jquery.ui.stars.min.css

848 ms

jquery.fancybox.css

899 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 77% of them (71 requests) were addressed to the original Yfsresearch.com, 5% (5 requests) were made to Google.com and 5% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Yfsresearch.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (59%)

Content Size

2.5 MB

After Optimization

996.9 kB

In fact, the total size of Yfsresearch.com main page is 2.5 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. 70% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 67.8 kB

  • Original 100.4 kB
  • After minification 92.6 kB
  • After compression 32.6 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 67.8 kB or 68% of the original size.

Image Optimization

-13%

Potential reduce by 61.8 kB

  • Original 487.0 kB
  • After minification 425.2 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, Yfsresearch needs image optimization as it can save up to 61.8 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 956.5 kB

  • Original 1.3 MB
  • After minification 1.1 MB
  • After compression 385.6 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 956.5 kB or 71% of the original size.

CSS Optimization

-71%

Potential reduce by 368.5 kB

  • Original 522.1 kB
  • After minification 482.5 kB
  • After compression 153.6 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. Yfsresearch.com needs all CSS files to be minified and compressed as it can save up to 368.5 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (79%)

Requests Now

86

After Optimization

18

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yfsresearch. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 46 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

yfsresearch.com accessibility score

69

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

ARIA input fields do not have accessible names

High

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

High

ARIA toggle fields do not have accessible names

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

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

Links do not have a discernible name

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

yfsresearch.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

yfsresearch.com SEO score

92

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yfsresearch.com 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 Yfsresearch.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

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