Tools & Wizards About Us
alsrobot.cn screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 36

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

alsrobot.cn

奥松机器人基地-ALSRobot-哈尔滨奥松机器人科技股份有限公司

Page Load Speed

69.4 sec in total

First Response

4.4 sec

Resources Loaded

64 sec

Page Rendered

1 sec

alsrobot.cn screenshot

About Website

Visit alsrobot.cn now to see the best up-to-date ALSRobot content for China and also check out these interesting facts you probably never knew about alsrobot.cn

奥松机器人专注于3-18岁青少儿人工智能创客教育的课程、软硬件教具的研发和销售，专为学校、托管和K12素质教育机构提供全体系化教学服务方案。课程体系依托于STEAM国际教育理念，让孩子们从实践过程中学习学科知识。

Visit alsrobot.cn

Key Findings

We analyzed Alsrobot.cn page load time and found that the first response time was 4.4 sec and then it took 65 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

alsrobot.cn performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value21.7 s

0/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.042

99/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

alsrobot.cn

4376 ms

index.css

1567 ms

jquery1.42.min.js

1553 ms

jquery.SuperSlide.2.1.1.js

904 ms

index.js

903 ms

Our browser made a total of 251 requests to load all elements on the main page. We found that 95% of them (239 requests) were addressed to the original Alsrobot.cn, 2% (4 requests) were made to Hm.baidu.com and 1% (3 requests) were made to Wpa.qq.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (15%)

Content Size

10.4 MB

After Optimization

8.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alsrobot.cn main page is 10.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 9.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 150.7 kB

  • Original 171.6 kB
  • After minification 117.6 kB
  • After compression 20.9 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 54.1 kB, which is 32% 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 150.7 kB or 88% of the original size.

Image Optimization

-12%

Potential reduce by 1.2 MB

  • Original 9.9 MB
  • After minification 8.7 MB

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, ALSRobot needs image optimization as it can save up to 1.2 MB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 132.5 kB

  • Original 189.2 kB
  • After minification 160.4 kB
  • After compression 56.7 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 132.5 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 77.0 kB

  • Original 91.5 kB
  • After minification 78.5 kB
  • After compression 14.6 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. Alsrobot.cn needs all CSS files to be minified and compressed as it can save up to 77.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (3%)

Requests Now

242

After Optimization

234

  • Images
  • JavaScript
  • CSS

The browser has sent 242 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ALSRobot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

alsrobot.cn

alsrobot.cn

4376 ms

index.css

index.css

1567 ms

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jquery1.42.min.js

1553 ms

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jquery.SuperSlide.2.1.1.js

904 ms

index.js

index.js

903 ms

wb.js

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932 ms

style.css

style.css

461 ms

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1362 ms

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896 ms

transport.js

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1344 ms

utils.js

utils.js

1286 ms

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jfqh.js

1288 ms

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19620 ms

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2939 ms

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3122 ms

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2636 ms

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3002 ms

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2914 ms

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2671 ms

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2344 ms

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2448 ms

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2266 ms

h.js

h.js

452 ms

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2160 ms

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2201 ms

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2215 ms

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2034 ms

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2037 ms

h.js

h.js

19543 ms

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1963 ms

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2010 ms

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2026 ms

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2245 ms

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2034 ms

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1904 ms

ewm2.png

ewm2.png

2859 ms

eye.png

eye.png

1882 ms

backHeadImg.png

backHeadImg.png

2092 ms

logo.png

logo.png

2092 ms

nav.png

nav.png

1990 ms

main-bg.png

main-bg.png

2055 ms

search.png

search.png

2368 ms

sbtn.png

sbtn.png

2487 ms

cart.png

cart.png

2498 ms

nav-line.png

nav-line.png

2189 ms

f2-nav-hover.png

f2-nav-hover.png

2274 ms

tuijian.png

tuijian.png

2565 ms

left-btn.png

left-btn.png

2907 ms

right-btn.png

right-btn.png

2520 ms

special.png

special.png

2504 ms

special-btn.png

special-btn.png

2526 ms

news-bg.png

news-bg.png

2496 ms

tj-d.png

tj-d.png

2571 ms

prev.png

prev.png

2668 ms

next.png

next.png

3040 ms

bg.png

bg.png

3177 ms

electronic_btn_scroll.png

electronic_btn_scroll.png

3047 ms

btns.png

btns.png

2720 ms

footericon.png

footericon.png

3481 ms

footer1.png

footer1.png

4947 ms

ewm.png

ewm.png

3274 ms

ao.png

ao.png

2888 ms

aoHand.png

aoHand.png

3011 ms

aoHover.png

aoHover.png

3110 ms

dialog.png

dialog.png

3308 ms

hm.js

hm.js

227 ms

hm.js

hm.js

19772 ms

Accessibility Review

alsrobot.cn accessibility score

36

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

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

alsrobot.cn best practices score

75

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

alsrobot.cn SEO score

76

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

    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 Alsrobot.cn 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 Alsrobot.cn 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

alsrobot.cn

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