Tools & Wizards About Us
isacn.org screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

isacn.org

Page Load Speed

35.3 sec in total

First Response

8.6 sec

Resources Loaded

26.5 sec

Page Rendered

226 ms

isacn.org screenshot

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Key Findings

We analyzed Isacn.org page load time and found that the first response time was 8.6 sec and then it took 26.8 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. 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

isacn.org performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

isacn.org

8587 ms

title.jpg

4346 ms

rss_button.gif

1139 ms

topbg.jpg

14276 ms

menubg.jpg

1736 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that all of those requests were addressed to Isacn.org and no external sources were called. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Isacn.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.1 kB (79%)

Content Size

24.2 kB

After Optimization

5.1 kB

  • HTML

In fact, the total size of Isacn.org main page is 24.2 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 24.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 19.1 kB

  • Original 24.2 kB
  • After minification 22.9 kB
  • After compression 5.1 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 19.1 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (53%)

Requests Now

17

After Optimization

8

  • Images

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isacn. 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

isacn.org

isacn.org

8587 ms

title.jpg

title.jpg

4346 ms

rss_button.gif

rss_button.gif

1139 ms

topbg.jpg

topbg.jpg

14276 ms

menubg.jpg

menubg.jpg

1736 ms

bg.gif

bg.gif

1167 ms

line2.gif

line2.gif

1124 ms

line1.gif

line1.gif

1163 ms

tmg-logo.jpg

tmg-logo.jpg

8758 ms

isaserverlogo_120_30.gif

isaserverlogo_120_30.gif

20236 ms

ms_isa_120_30.gif

ms_isa_120_30.gif

1164 ms

winsvr_logo_88_31.gif

winsvr_logo_88_31.gif

1174 ms

dot1.gif

dot1.gif

1749 ms

dotline1.gif

dotline1.gif

1748 ms

dot.gif

dot.gif

603 ms

title_bg2.gif

title_bg2.gif

2366 ms

posticonnew.gif

posticonnew.gif

3194 ms

next.gif

next.gif

1705 ms

line.gif

line.gif

1376 ms

zdnetforum_120_30.gif

zdnetforum_120_30.gif

1704 ms

Accessibility Review

isacn.org accessibility score

78

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

Best Practices

isacn.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

isacn.org SEO score

50

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

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isacn.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Chinese. Our system also found out that Isacn.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

isacn.org

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