Tools & Wizards About Us

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

pvc.com.vn

PVC-Co: Làm sạch nước từ mọi nguồn ! Có những gì bạn cần !

Page Load Speed

10.4 sec in total

First Response

925 ms

Resources Loaded

9.2 sec

Page Rendered

263 ms

About Website

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

Công ty TNHH TƯ VẤN XÂY DỰNG & MÔI TRƯỜNG P.V.C - Địa chỉ: 78/69~71 - Ba Vân - P.14 - Q.Tân Bình - TP.HCM - Điện thoại: (028) 3812 3493 - 3849 1102 - 3849 3008 - E-mail : info@pvc.com.vn hoặc pvcco.20...

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Key Findings

We analyzed Pvc.com.vn page load time and found that the first response time was 925 ms and then it took 9.5 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

pvc.com.vn performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

pvc.com.vn

925 ms

www.pvc.com.vn

2542 ms

style.css

604 ms

stylemenu.css

606 ms

stylemenu2.css

605 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 98% of them (91 requests) were addressed to the original Pvc.com.vn, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Pvc.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 374.4 kB (15%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pvc.com.vn main page is 2.5 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 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 80.6 kB

  • Original 92.4 kB
  • After minification 82.4 kB
  • After compression 11.8 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 10.0 kB, which is 11% 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 80.6 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 156.8 kB

  • Original 2.3 MB
  • After minification 2.1 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. PVC images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 112.7 kB

  • Original 159.8 kB
  • After minification 126.1 kB
  • After compression 47.1 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 112.7 kB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 24.3 kB

  • Original 29.0 kB
  • After minification 21.3 kB
  • After compression 4.7 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. Pvc.com.vn needs all CSS files to be minified and compressed as it can save up to 24.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (24%)

Requests Now

91

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PVC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

pvc.com.vn accessibility score

54

Accessibility Issues

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.

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

pvc.com.vn best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

pvc.com.vn SEO score

58

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

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 Pvc.com.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 Pvc.com.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 PVC. 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: