Tools & Wizards About Us
valser.org screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

valser.org

VALSE - Powered by Discuz!

Page Load Speed

10.6 sec in total

First Response

584 ms

Resources Loaded

9.8 sec

Page Rendered

202 ms

valser.org screenshot

About Website

Visit valser.org now to see the best up-to-date VALSE R content for China and also check out these interesting facts you probably never knew about valser.org

Vision And Learning SEminar

Visit valser.org

Key Findings

We analyzed Valser.org page load time and found that the first response time was 584 ms and then it took 10 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster. This domain responded with an error, which can significantly jeopardize Valser.org rating and web reputation

Performance Metrics

valser.org performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

valser.org

584 ms

MathJax.js

11 ms

style_2_common.css

489 ms

common.js

737 ms

portal.js

501 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 64% of them (21 requests) were addressed to the original Valser.org, 9% (3 requests) were made to Tcss.qq.com and 6% (2 requests) were made to Cdn.mathjax.org. The less responsive or slowest element that took the longest time to load (3 sec) relates to the external source C.cnzz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 339.7 kB (61%)

Content Size

558.8 kB

After Optimization

219.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Valser.org main page is 558.8 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. 30% of websites need less resources to load. Javascripts take 341.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 28.5 kB

  • Original 38.2 kB
  • After minification 37.8 kB
  • After compression 9.7 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 28.5 kB or 75% of the original size.

Image Optimization

-11%

Potential reduce by 11.8 kB

  • Original 105.9 kB
  • After minification 94.1 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, VALSE R needs image optimization as it can save up to 11.8 kB or 11% 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 242.0 kB

  • Original 341.6 kB
  • After minification 327.5 kB
  • After compression 99.5 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 242.0 kB or 71% of the original size.

CSS Optimization

-78%

Potential reduce by 57.4 kB

  • Original 73.2 kB
  • After minification 71.6 kB
  • After compression 15.8 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. Valser.org needs all CSS files to be minified and compressed as it can save up to 57.4 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (23%)

Requests Now

30

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VALSE R. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

valser.org

valser.org

584 ms

MathJax.js

MathJax.js

11 ms

style_2_common.css

style_2_common.css

489 ms

common.js

common.js

737 ms

portal.js

portal.js

501 ms

ping.js

ping.js

456 ms

discuz_tips.js

discuz_tips.js

474 ms

TeX-AMS-MML_HTMLorMML.js

TeX-AMS-MML_HTMLorMML.js

14 ms

logo.png

logo.png

244 ms

wechat.jpg

wechat.jpg

840 ms

blog.png

blog.png

345 ms

security.png

security.png

343 ms

hd-bg.png

hd-bg.png

472 ms

qmenu.png

qmenu.png

532 ms

bs_5_ft.png

bs_5_ft.png

532 ms

bs_5_hd.png

bs_5_hd.png

532 ms

bs_5_ft_r.png

bs_5_ft_r.png

534 ms

dot.gif

dot.gif

669 ms

bs_3_ft.png

bs_3_ft.png

777 ms

bs_3_hd.png

bs_3_hd.png

778 ms

bs_3_ft_r.png

bs_3_ft_r.png

777 ms

bs_2_ft.png

bs_2_ft.png

780 ms

bs_2_hd.png

bs_2_hd.png

910 ms

bs_2_ft_r.png

bs_2_ft_r.png

1018 ms

toss_11.gif

toss_11.gif

226 ms

NDMwMzA5MDQ=.js

NDMwMzA5MDQ=.js

520 ms

z_stat.php

z_stat.php

2161 ms

stat.htm

stat.htm

165 ms

core.php

core.php

3048 ms

9.gif

9.gif

1580 ms

pic1.gif

pic1.gif

758 ms

scrolltop.png

scrolltop.png

244 ms

app.gif

app.gif

1627 ms

Accessibility Review

valser.org accessibility score

88

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

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

valser.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

valser.org SEO score

69

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

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 Valser.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 Valser.org 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

valser.org

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