Tools & Wizards About Us
hocgioitoan.com.vn screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    44% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

hocgioitoan.com.vn

Default Web Site Page

Page Load Speed

22.6 sec in total

First Response

1.4 sec

Resources Loaded

20 sec

Page Rendered

1.3 sec

hocgioitoan.com.vn screenshot

About Website

Click here to check amazing Hocgioitoan content for Vietnam. Otherwise, check out these important facts you probably never knew about hocgioitoan.com.vn

Phát hành độc quyền Toán song ngữ Singapore, cách học giỏi toán lớp 1-2-3-4-5-6-7-8-9. Á Châu Edu - đánh thức tiềm năng Toán. Sổ tay giải toán tư duy, thi olympic.

Visit hocgioitoan.com.vn

Key Findings

We analyzed Hocgioitoan.com.vn page load time and found that the first response time was 1.4 sec and then it took 21.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

hocgioitoan.com.vn performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value30.5 s

0/100

10%

TBT (Total Blocking Time)

Value2,230 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value52.4 s

0/100

10%

Network Requests Diagram

hocgioitoan.com.vn

1370 ms

qbe1uCe8rhmbC8TndLN29KtBHb0.js

269 ms

css

55 ms

bootstrap.css

812 ms

font-awesome.css

532 ms

Our browser made a total of 209 requests to load all elements on the main page. We found that 67% of them (139 requests) were addressed to the original Hocgioitoan.com.vn, 16% (34 requests) were made to Static.xx.fbcdn.net and 3% (6 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (12.5 sec) belongs to the original domain Hocgioitoan.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (8%)

Content Size

20.9 MB

After Optimization

19.3 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Hocgioitoan.com.vn main page is 20.9 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. Only a small number of websites need less resources to load. Images take 20.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 342.6 kB

  • Original 412.6 kB
  • After minification 412.6 kB
  • After compression 70.0 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 342.6 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 1.3 MB

  • Original 20.4 MB
  • After minification 19.2 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. Hocgioitoan images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 333 B

  • Original 38.3 kB
  • After minification 38.3 kB
  • After compression 38.0 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 117 (59%)

Requests Now

200

After Optimization

83

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 200 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hocgioitoan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 93 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

hocgioitoan.com.vn

hocgioitoan.com.vn

1370 ms

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Accessibility Review

hocgioitoan.com.vn accessibility score

73

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

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

High

Image elements do not have [alt] attributes

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

hocgioitoan.com.vn best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hocgioitoan.com.vn SEO score

85

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

    EN

  • Language Claimed

    VI

  • Encoding

    UTF-8

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

hocgioitoan.com.vn

Open Graph data is detected on the main page of Hocgioitoan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: