Tools & Wizards About Us
giaitoan.com screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

giaitoan.com

Giải Toán - Luyện tập - Hỏi Đáp - Đề Thi - Trắc nghiệm Toán online số 1 Việt Nam

Page Load Speed

7.3 sec in total

First Response

521 ms

Resources Loaded

6.4 sec

Page Rendered

451 ms

giaitoan.com screenshot

About Website

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

Giải Toán giúp bạn giải bài tập Toán, luyện tập, trắc nghiệm và giải đáp môn Toán nhanh chóng, chính xác

Visit giaitoan.com

Key Findings

We analyzed Giaitoan.com page load time and found that the first response time was 521 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

giaitoan.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

51/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

79/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

giaitoan.com

521 ms

giaitoan.com

1570 ms

gtm.js

65 ms

js

150 ms

adsbygoogle.js

77 ms

Our browser made a total of 194 requests to load all elements on the main page. We found that 6% of them (11 requests) were addressed to the original Giaitoan.com, 79% (154 requests) were made to T.vdoc.vn and 7% (14 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source T.vdoc.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 387.1 kB (44%)

Content Size

887.9 kB

After Optimization

500.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Giaitoan.com main page is 887.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. HTML takes 411.1 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 359.8 kB

  • Original 411.1 kB
  • After minification 345.5 kB
  • After compression 51.2 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 65.5 kB, which is 16% 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 359.8 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 62 B

  • Original 70.2 kB
  • After minification 70.1 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. Giaitoan images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 27.2 kB

  • Original 406.6 kB
  • After minification 406.6 kB
  • After compression 379.5 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 35 (19%)

Requests Now

185

After Optimization

150

  • AJAX
  • Images
  • JavaScript

The browser has sent 185 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Giaitoan. 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

giaitoan.com

giaitoan.com

521 ms

giaitoan.com

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1570 ms

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65 ms

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sodar

sodar

39 ms

ads

ads

3 ms

ads

ads

2 ms

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runner.html

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aframe

aframe

37 ms

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5 ms

Accessibility Review

giaitoan.com accessibility score

86

Accessibility Issues

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

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

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

Image elements do not have [alt] attributes

Best Practices

giaitoan.com 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

giaitoan.com 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

    VI

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Giaitoan.com can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese 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 Giaitoan.com 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

giaitoan.com

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