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mers.hk screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

mers.hk

現代教育研究社 – Modern Educational Research Society – 現代教育研究社以出版優質教材為宗旨，所出版的教科書高達五十科五百多種，俱備幼兒班、幼稚園、小學、中學以至香港中學文憑試等教材配套。

Page Load Speed

2.7 sec in total

First Response

713 ms

Resources Loaded

2 sec

Page Rendered

1 ms

mers.hk screenshot

About Website

Visit mers.hk now to see the best up-to-date Mers content for Hong Kong and also check out these interesting facts you probably never knew about mers.hk

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Key Findings

We analyzed Mers.hk page load time and found that the first response time was 713 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

mers.hk performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value670 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

mers.hk

713 ms

index.html

1254 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Mers.hk and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Mers.hk.

Page Optimization Overview & Recommendations

Page size can be reduced by 116.9 kB (59%)

Content Size

199.6 kB

After Optimization

82.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mers.hk main page is 199.6 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Javascripts take 154.7 kB which makes up the majority of the site volume.

HTML Optimization

-10%

Potential reduce by 9 B

  • Original 87 B
  • After minification 87 B
  • After compression 78 B

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. This web page is already compressed.

Image Optimization

-47%

Potential reduce by 19.6 kB

  • Original 41.5 kB
  • After minification 21.8 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, Mers needs image optimization as it can save up to 19.6 kB or 47% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 94.6 kB

  • Original 154.7 kB
  • After minification 146.0 kB
  • After compression 60.1 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 94.6 kB or 61% of the original size.

CSS Optimization

-80%

Potential reduce by 2.7 kB

  • Original 3.4 kB
  • After minification 2.0 kB
  • After compression 664 B

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. Mers.hk needs all CSS files to be minified and compressed as it can save up to 2.7 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

mers.hk

mers.hk

713 ms

index.html

index.html

1254 ms

Accessibility Review

mers.hk accessibility score

87

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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 valid value for its [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

mers.hk best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

mers.hk SEO score

83

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

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

    N/A

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

mers.hk

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