Tools & Wizards About Us

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 48

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

ultraiso.net

UltraISO软碟通中文官方网站 - 光盘映像文件制作/编辑/转换工具

Page Load Speed

4.5 sec in total

First Response

431 ms

Resources Loaded

3.9 sec

Page Rendered

80 ms

About Website

Click here to check amazing UltraIS O content for China. Otherwise, check out these important facts you probably never knew about ultraiso.net

UltraISO软碟通是光盘映像文件制作/编辑/转换工具，可以编辑ISO文件,从ISO中提取文件和目录，从CD-ROM制作光盘映像或者将硬盘上的文件制作成ISO文件，制作可引导光盘。

Visit ultraiso.net

Key Findings

We analyzed Ultraiso.net page load time and found that the first response time was 431 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

ultraiso.net performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value2.4 s

99/100

10%

Network Requests Diagram

ultraiso.net

431 ms

www.ultraiso.net

847 ms

public.css

258 ms

only_home_style.css

460 ms

jquery.js

857 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that all of those requests were addressed to Ultraiso.net and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Ultraiso.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.0 kB (20%)

Content Size

220.6 kB

After Optimization

175.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ultraiso.net main page is 220.6 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. 15% of websites need less resources to load. Images take 152.9 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 3.2 kB

  • Original 5.0 kB
  • After minification 4.6 kB
  • After compression 1.8 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 3.2 kB or 65% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 152.9 kB
  • After minification 152.9 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. UltraIS O images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 29.3 kB

  • Original 46.5 kB
  • After minification 39.7 kB
  • After compression 17.2 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 29.3 kB or 63% of the original size.

CSS Optimization

-77%

Potential reduce by 12.4 kB

  • Original 16.2 kB
  • After minification 15.0 kB
  • After compression 3.8 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. Ultraiso.net needs all CSS files to be minified and compressed as it can save up to 12.4 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (42%)

Requests Now

19

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UltraIS O. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ultraiso.net accessibility score

48

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.

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

Best Practices

ultraiso.net best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ultraiso.net SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

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 Ultraiso.net 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 Ultraiso.net 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 UltraIS 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: