Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

ocean.edu.vn

Hệ Thống Anh Ngữ - Học Tiếng Anh với Giáo Viên Nước Ngoài | Anh Ngữ Ocean Edu

Page Load Speed

10.8 sec in total

First Response

1.9 sec

Resources Loaded

8.1 sec

Page Rendered

767 ms

About Website

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

Hệ thống Anh ngữ Quốc tế Ocean Edu với 100% giáo viên nước ngoài đã đào tạo thành công hơn 500.000 học viên theo học các chương trình tiếng Anh.

Visit ocean.edu.vn

Key Findings

We analyzed Ocean.edu.vn page load time and found that the first response time was 1.9 sec and then it took 8.8 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

ocean.edu.vn performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value32.4 s

0/100

25%

SI (Speed Index)

Value23.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,710 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.064

97/100

15%

TTI (Time to Interactive)

Value24.7 s

0/100

10%

Network Requests Diagram

ocean.edu.vn

1948 ms

ocean.edu.vn

2710 ms

css2

2607 ms

css

40 ms

minify.aspx

1064 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 48% of them (33 requests) were addressed to the original Ocean.edu.vn, 14% (10 requests) were made to Static.xx.fbcdn.net and 10% (7 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Ocean.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 219.3 kB (40%)

Content Size

555.0 kB

After Optimization

335.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ocean.edu.vn main page is 555.0 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. 75% 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. HTML takes 245.1 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 215.2 kB

  • Original 245.1 kB
  • After minification 192.8 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 52.3 kB, which is 21% 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 215.2 kB or 88% of the original size.

Image Optimization

-2%

Potential reduce by 3.6 kB

  • Original 157.3 kB
  • After minification 153.7 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. Ocean images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 433 B

  • Original 152.6 kB
  • After minification 152.6 kB
  • After compression 152.2 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.

Requests Breakdown

Number of requests can be reduced by 27 (46%)

Requests Now

59

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ocean. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 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

ocean.edu.vn accessibility score

63

Accessibility Issues

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

<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

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.

Best Practices

ocean.edu.vn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

ocean.edu.vn SEO score

84

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