Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

psi.vn

Trang chủ - Công ty Cổ phần Chứng khoán Dầu Khí

Page Load Speed

20.8 sec in total

First Response

4.1 sec

Resources Loaded

16.4 sec

Page Rendered

331 ms

psi.vn screenshot

About Website

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

PSI là Công ty chứng khoán thuộc Tập đoàn Dầu khí Việt Nam (PVN), được Ủy ban Chứng khoán Nhà nước cấp giấy phép hoạt động số 26/UBCK-GPHĐCK ngày 19/12/2006 với các nghiệp vụ kinh doanh chính bao gồm:...

Visit psi.vn

Key Findings

We analyzed Psi.vn page load time and found that the first response time was 4.1 sec and then it took 16.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

psi.vn performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value17.1 s

0/100

25%

SI (Speed Index)

Value29.9 s

0/100

10%

TBT (Total Blocking Time)

Value25,110 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.461

19/100

15%

TTI (Time to Interactive)

Value41.4 s

0/100

10%

Network Requests Diagram

psi.vn

4059 ms

ddtabmenu.js

720 ms

Core.css

1195 ms

EStocks.css

1701 ms

priceboard.css

736 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that all of those requests were addressed to Psi.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (12.1 sec) belongs to the original domain Psi.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 293.0 kB (34%)

Content Size

866.2 kB

After Optimization

573.2 kB

In fact, the total size of Psi.vn main page is 866.2 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. 25% of websites need less resources to load. Images take 575.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 129.4 kB

  • Original 158.3 kB
  • After minification 125.4 kB
  • After compression 28.9 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 32.9 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 129.4 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 49.8 kB

  • Original 575.3 kB
  • After minification 525.5 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. Psi images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 21.7 kB

  • Original 26.8 kB
  • After minification 19.3 kB
  • After compression 5.1 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 21.7 kB or 81% of the original size.

CSS Optimization

-87%

Potential reduce by 92.1 kB

  • Original 105.7 kB
  • After minification 78.2 kB
  • After compression 13.6 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. Psi.vn needs all CSS files to be minified and compressed as it can save up to 92.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (55%)

Requests Now

67

After Optimization

30

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Psi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

psi.vn accessibility score

81

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

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

psi.vn best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

psi.vn SEO score

88

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

    N/A

  • Encoding

    UTF-8

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