11.1 sec in total
2.2 sec
8.5 sec
441 ms
Click here to check amazing CLASSROOM content for Hong Kong. Otherwise, check out these important facts you probably never knew about classroom.com.hk
Visit classroom.com.hkWe analyzed Classroom.com.hk page load time and found that the first response time was 2.2 sec and then it took 8.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
classroom.com.hk performance score
name
value
score
weighting
Value4.3 s
17/100
10%
Value19.1 s
0/100
25%
Value12.7 s
3/100
10%
Value330 ms
76/100
30%
Value0.279
43/100
15%
Value48.9 s
0/100
10%
2193 ms
31 ms
1647 ms
484 ms
476 ms
Our browser made a total of 120 requests to load all elements on the main page. We found that 98% of them (118 requests) were addressed to the original Classroom.com.hk, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Classroom.com.hk.
Page size can be reduced by 958.7 kB (14%)
6.6 MB
5.7 MB
In fact, the total size of Classroom.com.hk main page is 6.6 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. 35% of websites need less resources to load. Images take 5.9 MB which makes up the majority of the site volume.
Potential reduce by 192.6 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. This page needs HTML code to be minified as it can gain 68.9 kB, which is 33% 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 192.6 kB or 91% of the original size.
Potential reduce by 417.5 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. CLASSROOM images are well optimized though.
Potential reduce by 326.6 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 326.6 kB or 74% of the original size.
Potential reduce by 22.0 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. Classroom.com.hk needs all CSS files to be minified and compressed as it can save up to 22.0 kB or 78% of the original size.
Number of requests can be reduced by 23 (20%)
116
93
The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CLASSROOM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
classroom.com.hk
2193 ms
ga.js
31 ms
jquery-1.7.2.min.js
1647 ms
watermark.js
484 ms
stuHover.js
476 ms
jquery.colorbox.js
1205 ms
jquery.nivo.slider.js
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jssor.core.js
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jssor.utils.js
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jssor.slider.js
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jssor.slider.min.js
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jquery.mousewheel-3.0.6.pack.js
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jquery.fancybox.css
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jquery.fancybox-media.js
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jquery.fancybox-thumbs.css
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jquery.fancybox-thumbs.js
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jquery.easyslides.min.v1.1.js
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easySlides.default.min.css
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site.css
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parent.css
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nivo-slider.css
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colorbox.css
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pro_dropdown_2.css
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main_left_bar.gif
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main_bg.gif
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news.xml
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Global_menu_ch_new.html
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lang_cht.gif
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lang_cht_o.gif
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lang_eng.gif
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mainWeb_logo.jpg
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bar_eShop.png
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eShop_search.png
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bar_News.png
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bar_Magazine.png
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magazineNew.jpg
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bar_Workshops.png
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btn_teachersWorkshop.jpg
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btn_parentsWorkshop.jpg
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footer.jpg
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1.jpg
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classroom.com.hk accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
classroom.com.hk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
classroom.com.hk SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Image elements do not have [alt] attributes
JA
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Classroom.com.hk can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Classroom.com.hk 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.
classroom.com.hk
Open Graph description is not detected on the main page of CLASSROOM. 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: