Access lophoctiengnhat.com. Học tiếng Nhật trực tuyến-trường Việt Nhật

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

47/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.241

52/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

lophoctiengnhat.com

1535 ms

jquery.js

1865 ms

plugins.js

2857 ms

guest.js

504 ms

lhtn.min.js

760 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 75% of them (73 requests) were addressed to the original Lophoctiengnhat.com, 12% (12 requests) were made to Static.xx.fbcdn.net and 7% (7 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (4.6 sec) belongs to the original domain Lophoctiengnhat.com.

Content Size

1.6 MB

After Optimization

907.1 kB

In fact, the total size of Lophoctiengnhat.com main page is 1.6 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. 45% of websites need less resources to load. Images take 788.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 59.1 kB

Original 74.1 kB
After minification 66.9 kB
After compression 15.1 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 59.1 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 83.9 kB

Original 788.6 kB
After minification 704.7 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, Lophoctiengnhat needs image optimization as it can save up to 83.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 393.2 kB

Original 551.7 kB
After minification 551.5 kB
After compression 158.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 393.2 kB or 71% of the original size.

CSS Optimization

-79%

Potential reduce by 111.3 kB

Original 140.1 kB
After minification 140.1 kB
After compression 28.8 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. Lophoctiengnhat.com needs all CSS files to be minified and compressed as it can save up to 111.3 kB or 79% of the original size.

Requests Now

After Optimization

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lophoctiengnhat. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts 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 interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

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 Lophoctiengnhat.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 Lophoctiengnhat.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

lophoctiengnhat.com

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

Học tiếng Nhật trực tuyến-trường Việt Nhật

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

lophoctiengnhat.com

jquery.js

plugins.js

guest.js

lhtn.min.js

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

lophoctiengnhat.com

jquery.js

plugins.js

guest.js

lhtn.min.js

lhtn.min.css

logo.png

search-16.png

login-16.png

signup-16.png

fb-35.png

yahoo-35.png

google-35.png

books-home.png

exame-home.png

test-home.png

graduate-home.png

level-home.png

e-learning-home.png

capdovolong-home.png

minnano-book-home.png

soumatome-book-home.png

kanji-book-home.png

listen-book-home.png

kaiwa2.png

giaotrinhkhac-book-home.png

capdoN5-home.png

capdoN4-home.png

capdoN3-home.png

capdoN2-home.png

capdoN1-home.png

goi-home.png

kanji-home.png

bunpou3-home.png

kaiwa-home.png

listen-home.png

reading7-home.png

books4-home.png

thongbao-home.png

onlineThoikhoabieu-home.png

facebook.js

fontawesome-webfont.woff

onlineGV4-home.png