Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

trungtamnhatngu.edu.vn

Trung tâm tiếng nhật SOFL - Địa chỉ học tiếng Nhật uy tín

Page Load Speed

8.5 sec in total

First Response

1 sec

Resources Loaded

6.6 sec

Page Rendered

817 ms

About Website

Click here to check amazing Trung Tamnhatngu content for Vietnam. Otherwise, check out these important facts you probably never knew about trungtamnhatngu.edu.vn

Trung tâm tiếng Nhật SOFL chuyên dạy và luyện thi JLPT uy tín, chất lượng. SOFL mở các lớp học tiếng Nhật offline và online từ cơ bản đến nâng cao với cam kết chuẩn đầu ra.

Visit trungtamnhatngu.edu.vn

Key Findings

We analyzed Trungtamnhatngu.edu.vn page load time and found that the first response time was 1 sec and then it took 7.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

trungtamnhatngu.edu.vn performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value16.4 s

0/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value1,130 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.188

65/100

15%

TTI (Time to Interactive)

Value17.6 s

4/100

10%

Network Requests Diagram

trungtamnhatngu.edu.vn

1006 ms

trungtamnhatngu.edu.vn

1627 ms

e2b04bcb03b4aadc90dafb0a700669de.opt.css

1307 ms

css2

40 ms

font-awesome.min.css

48 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 60% of them (41 requests) were addressed to the original Trungtamnhatngu.edu.vn, 15% (10 requests) were made to Static.xx.fbcdn.net and 6% (4 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Trungtamnhatngu.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 788.9 kB (10%)

Content Size

8.0 MB

After Optimization

7.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Trungtamnhatngu.edu.vn main page is 8.0 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. 70% of websites need less resources to load. Images take 7.9 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 61.0 kB

  • Original 80.2 kB
  • After minification 79.8 kB
  • After compression 19.2 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 61.0 kB or 76% of the original size.

Image Optimization

-9%

Potential reduce by 727.8 kB

  • Original 7.9 MB
  • After minification 7.2 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. Trung Tamnhatngu images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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 27 (43%)

Requests Now

63

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trung Tamnhatngu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

trungtamnhatngu.edu.vn accessibility score

64

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

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

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

High

[aria-*] attributes do not have valid values

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

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

[id] attributes on active, focusable elements are not unique

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

Best Practices

trungtamnhatngu.edu.vn best practices score

58

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

trungtamnhatngu.edu.vn SEO score

92

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

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Trungtamnhatngu.edu.vn 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 Trungtamnhatngu.edu.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

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