Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

ii4o.com

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Page Load Speed

42.6 sec in total

First Response

3.4 sec

Resources Loaded

28.7 sec

Page Rendered

10.6 sec

ii4o.com screenshot

About Website

Welcome to ii4o.com homepage info - get ready to check Ii 4 O best content right away, or after learning these important things about ii4o.com

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Key Findings

We analyzed Ii4o.com page load time and found that the first response time was 3.4 sec and then it took 39.3 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

ii4o.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value136.1 s

0/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.119

85/100

15%

TTI (Time to Interactive)

Value34.4 s

0/100

10%

Network Requests Diagram

www.ii4o.com

3390 ms

seyuav-font.css

127 ms

seyuav-ui.css

122 ms

seyuav-site.css

130 ms

seyuav-color.css

132 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 35% of them (28 requests) were addressed to the original Ii4o.com, 4% (3 requests) were made to Kvkaa.com and 3% (2 requests) were made to 0. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source 38qptu4.oss-cn-hangzhou.aliyuncs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 214.6 kB (67%)

Content Size

321.0 kB

After Optimization

106.4 kB

In fact, the total size of Ii4o.com main page is 321.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. HTML takes 216.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 177.8 kB

  • Original 216.7 kB
  • After minification 177.6 kB
  • After compression 38.9 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 39.1 kB, which is 18% 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 177.8 kB or 82% of the original size.

Image Optimization

-70%

Potential reduce by 26.2 kB

  • Original 37.2 kB
  • After minification 11.0 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, Ii 4 O needs image optimization as it can save up to 26.2 kB or 70% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 6.3 kB

  • Original 45.3 kB
  • After minification 45.2 kB
  • After compression 39.0 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 6.3 kB or 14% of the original size.

CSS Optimization

-20%

Potential reduce by 4.4 kB

  • Original 21.8 kB
  • After minification 21.8 kB
  • After compression 17.5 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. Ii4o.com needs all CSS files to be minified and compressed as it can save up to 4.4 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (38%)

Requests Now

47

After Optimization

29

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ii 4 O. 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 from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ii4o.com accessibility score

41

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

High

Links do not have a discernible name

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

High

[lang] attributes do not have a valid value

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

ii4o.com best practices score

50

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

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

SEO Factors

ii4o.com SEO score

81

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ii4o.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Ii4o.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 Ii 4 O. 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: