Access mathx.vn. MathX - Thích học Toán, học Toán online cùng thầy Trần Hữu Hiếu

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value39,350 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.255

48/100

15%

TTI (Time to Interactive)

Value51.4 s

0/100

10%

mathx.vn

713 ms

mathx.vn

1227 ms

pure-min.css

235 ms

grids-responsive-min.css

469 ms

sweetalert2.css

701 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 53% of them (59 requests) were addressed to the original Mathx.vn, 9% (10 requests) were made to Embed.tawk.to and 6% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Mathx.vn.

Content Size

1.7 MB

After Optimization

906.9 kB

In fact, the total size of Mathx.vn main page is 1.7 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 80.5 kB

Original 98.8 kB
After minification 79.0 kB
After compression 18.3 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 19.8 kB, which is 20% 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 80.5 kB or 82% of the original size.

Image Optimization

-37%

Potential reduce by 391.4 kB

Original 1.1 MB
After minification 660.8 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, MathX needs image optimization as it can save up to 391.4 kB or 37% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 31.0 kB

Original 179.7 kB
After minification 179.7 kB
After compression 148.7 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 31.0 kB or 17% of the original size.

CSS Optimization

-80%

Potential reduce by 313.5 kB

Original 392.7 kB
After minification 392.4 kB
After compression 79.2 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. Mathx.vn needs all CSS files to be minified and compressed as it can save up to 313.5 kB or 80% of the original size.

Requests Now

104

After Optimization

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MathX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA IDs are not unique

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.

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

VI
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mathx.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Mathx.vn 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

mathx.vn

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

Report Summary

Performance

Accessibility

Best Practices

SEO

MathX - Thích học Toán, học Toán online cùng thầy Trần Hữu Hiếu

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

mathx.vn

mathx.vn

pure-min.css

grids-responsive-min.css

sweetalert2.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

mathx.vn

mathx.vn

pure-min.css

grids-responsive-min.css

sweetalert2.css

style.css

responsive.css

jquery.alerts.css

font-awesome.min.css

mathx.css

css

jquery-1.11.3.min.js

readmore.min.js

jquery.browser.min.js

jquery.slimscroll.min.js

bootstrap-modal.js

bootstrap-tabs.js

jquery.slides.min.js

jquery.alerts.js

imtech_pager.js

sweetalert2.min.js

style.js

funquiz.js

jquery.sticky.js

api.js

platform.js

slick.css

slick-theme.css

slick.min.js

js

fbevents.js

gtm.js

log-mc-ok.jpg

mlive.png

logo-mathx-2019.png

facebook.png

itel.png

btn-youtube.png

u4kvh.jpg

hieu_rounded.png

video-bai-hoc.png

do-vui-toan-hoc.png

f03bz.png