Tools & Wizards About Us

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

trungtamdaykem.com

Gia Sư Thăng Long Uy Tín - Trung Tâm Gia Sư Dạy Kèm Tại Nhà

Page Load Speed

53.5 sec in total

First Response

853 ms

Resources Loaded

44.8 sec

Page Rendered

7.8 sec

About Website

Visit trungtamdaykem.com now to see the best up-to-date Trung Tamdaykem content for Vietnam and also check out these interesting facts you probably never knew about trungtamdaykem.com

Nhận dạy kèm tại nhà từ lớp 1 đến lớp 12 các môn uy tín hiệu quả. Cam kết gia sư có bằng cấp, chuyên sư phạm. Trung tâm gia sư cập nhật lớp dạy kèm mới mỗi ngày

Visit trungtamdaykem.com

Key Findings

We analyzed Trungtamdaykem.com page load time and found that the first response time was 853 ms and then it took 52.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

trungtamdaykem.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value31.5 s

0/100

10%

TBT (Total Blocking Time)

Value17,150 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.242

51/100

15%

TTI (Time to Interactive)

Value33.6 s

0/100

10%

Network Requests Diagram

trungtamdaykem.com

853 ms

www.trungtamdaykem.com

1902 ms

nqt.css

791 ms

jquery-3.2.1.min.js

1098 ms

jquery.dropdownPlain.js

830 ms

Our browser made a total of 206 requests to load all elements on the main page. We found that 96% of them (197 requests) were addressed to the original Trungtamdaykem.com, 1% (2 requests) were made to Images.dmca.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (11.2 sec) belongs to the original domain Trungtamdaykem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 628.7 kB (11%)

Content Size

5.7 MB

After Optimization

5.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Trungtamdaykem.com main page is 5.7 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 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 248.0 kB

  • Original 284.2 kB
  • After minification 270.2 kB
  • After compression 36.2 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. 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 248.0 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 375.2 kB

  • Original 5.2 MB
  • After minification 4.8 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. Trung Tamdaykem images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 5.4 kB

  • Original 149.6 kB
  • After minification 149.1 kB
  • After compression 144.2 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.

CSS Optimization

-1%

Potential reduce by 121 B

  • Original 18.2 kB
  • After minification 18.2 kB
  • After compression 18.1 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. Trungtamdaykem.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (9%)

Requests Now

197

After Optimization

179

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 197 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trung Tamdaykem. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

trungtamdaykem.com accessibility score

74

Accessibility Issues

ARIA

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.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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.

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

<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

Tables and lists

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

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

trungtamdaykem.com 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

trungtamdaykem.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

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Trungtamdaykem.com can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Trungtamdaykem.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

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