Access jaxtina.com. Jaxtina English Center - Trung tâm đào tạo Tiếng Anh toàn diện

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value34.0 s

0/100

25%

SI (Speed Index)

Value39.8 s

0/100

10%

TBT (Total Blocking Time)

Value2,470 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.915

3/100

15%

TTI (Time to Interactive)

Value45.5 s

0/100

10%

jaxtina.com

782 ms

jaxtina.com

1998 ms

style.min.css

245 ms

styles.css

492 ms

kk-star-ratings.css

734 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 73% of them (90 requests) were addressed to the original Jaxtina.com, 6% (7 requests) were made to Cdnjs.cloudflare.com and 5% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Jaxtina.com.

Content Size

3.6 MB

After Optimization

3.2 MB

In fact, the total size of Jaxtina.com main page is 3.6 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. Only a small number of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 215.1 kB

Original 245.0 kB
After minification 203.2 kB
After compression 29.9 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 41.8 kB, which is 17% 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 215.1 kB or 88% of the original size.

Image Optimization

-3%

Potential reduce by 103.5 kB

Original 3.0 MB
After minification 2.9 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. Jaxtina images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 33.5 kB

Original 202.2 kB
After minification 201.9 kB
After compression 168.7 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 33.5 kB or 17% of the original size.

CSS Optimization

-5%

Potential reduce by 7.4 kB

Original 139.8 kB
After minification 139.8 kB
After compression 132.4 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. Jaxtina.com has all CSS files already compressed.

Requests Now

111

After Optimization

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jaxtina. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 20 to 1 for CSS 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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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

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 Jaxtina.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 Jaxtina.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

jaxtina.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Jaxtina English Center - Trung tâm đào tạo Tiếng Anh toàn diện

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

jaxtina.com

jaxtina.com

style.min.css

styles.css

kk-star-ratings.css

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

jaxtina.com

jaxtina.com

style.min.css

styles.css

kk-star-ratings.css

reword-public.css

reword-banner.css

screen.min.css

public-main.css

slick.css

all.min.css

bootstrap.min.css

bootstrap.min.css

style.css

style.css

responsive.css

2-component.css

author-box.css

styles.css

jquery.min.js

jquery-migrate.min.js

public-main.js

ad82c62714.js

DMCABadgeHelper.min.js

hooks.min.js

i18n.min.js

index.js

index.js

kk-star-ratings.js

reword-public.js

reword-banner.js

front.min.js

jquery.min.js

slick.min.js

bootstrap.min.js

index.min.js

fixed-sidebar.js

main.js

slick-slide.js

countdowntimer.js

theme.js

akismet-frontend.js

css