Tools & Wizards About Us
isotrain.org screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    88% of other websites

  • 32

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

isotrain.org

内审员培训|证书|资格证|考试试题|ISO9001内审员|中标内审员培训网

Page Load Speed

16 sec in total

First Response

1.2 sec

Resources Loaded

14.7 sec

Page Rendered

124 ms

isotrain.org screenshot

About Website

Visit isotrain.org now to see the best up-to-date Isotrain content and also check out these interesting facts you probably never knew about isotrain.org

中标内审员培训网(www.isotrain.org)内审员培训网站，提供最专业的ISO内审员培训服务和内审员培训资料，内审员资格证、内审员证书、内审员职责、内审员考试试题、内审员招聘、内审员资格、质量管理体系内审员。

Visit isotrain.org

Key Findings

We analyzed Isotrain.org page load time and found that the first response time was 1.2 sec and then it took 14.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

isotrain.org performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

isotrain.org

1194 ms

www.isotrain.org

2640 ms

css.css

1715 ms

tj.js

439 ms

logo.gif

480 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 83% of them (34 requests) were addressed to the original Isotrain.org, 12% (5 requests) were made to Bdimg.share.baidu.com and 2% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (10.4 sec) belongs to the original domain Isotrain.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 55.2 kB (68%)

Content Size

81.2 kB

After Optimization

26.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isotrain.org main page is 81.2 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. Only 10% of websites need less resources to load. Javascripts take 35.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 25.1 kB

  • Original 32.7 kB
  • After minification 32.4 kB
  • After compression 7.6 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 25.1 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 299 B
  • After minification 299 B

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. Isotrain images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 21.4 kB

  • Original 35.5 kB
  • After minification 35.3 kB
  • After compression 14.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 21.4 kB or 60% of the original size.

CSS Optimization

-68%

Potential reduce by 8.7 kB

  • Original 12.7 kB
  • After minification 11.4 kB
  • After compression 4.0 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. Isotrain.org needs all CSS files to be minified and compressed as it can save up to 8.7 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (46%)

Requests Now

39

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isotrain. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

isotrain.org

isotrain.org

1194 ms

www.isotrain.org

www.isotrain.org

2640 ms

css.css

css.css

1715 ms

tj.js

tj.js

439 ms

logo.gif

logo.gif

480 ms

ljpx.gif

ljpx.gif

488 ms

zc.gif

zc.gif

486 ms

zxbm.gif

zxbm.gif

3135 ms

jf.gif

jf.gif

968 ms

zxxx.gif

zxxx.gif

3557 ms

mnks.gif

mnks.gif

985 ms

zsks.gif

zsks.gif

992 ms

fz.gif

fz.gif

993 ms

bg1.gif

bg1.gif

1483 ms

003.gif

003.gif

1493 ms

l_b_dl.gif

l_b_dl.gif

3292 ms

l_b_zc.gif

l_b_zc.gif

3289 ms

m9000.gif

m9000.gif

6731 ms

m14000.gif

m14000.gif

2508 ms

m13485.gif

m13485.gif

4318 ms

m22000.gif

m22000.gif

6991 ms

m16949.gif

m16949.gif

6771 ms

m18000.gif

m18000.gif

4199 ms

ad300.gif

ad300.gif

10376 ms

banner.gif

banner.gif

7569 ms

qq_offline.gif

qq_offline.gif

4830 ms

bg11.gif

bg11.gif

5317 ms

bg.gif

bg.gif

6910 ms

006.gif

006.gif

7135 ms

1.jpg

1.jpg

7173 ms

h3.gif

h3.gif

7319 ms

h1.gif

h1.gif

7385 ms

h2.gif

h2.gif

7552 ms

ico_4.gif

ico_4.gif

7591 ms

1875457.js

1875457.js

1129 ms

icon_9.gif

icon_9.gif

802 ms

shell_v2.js

shell_v2.js

812 ms

logger.js

logger.js

435 ms

bds_s_v2.js

bds_s_v2.js

1340 ms

bdsstyle.css

bdsstyle.css

436 ms

r6.gif

r6.gif

437 ms

Accessibility Review

isotrain.org accessibility score

32

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

High

Links do not have a discernible name

High

<object> elements do not have alternate text

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

isotrain.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

isotrain.org SEO score

58

Search Engine Optimization Advices

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

High

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isotrain.org 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 Isotrain.org main page’s claimed encoding is gb2312. 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

isotrain.org

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