Tools & Wizards About Us

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

pv-tech.cn

新闻综述 | PV-Tech每日光伏新闻

Page Load Speed

53.2 sec in total

First Response

1.4 sec

Resources Loaded

51.5 sec

Page Rendered

293 ms

About Website

Welcome to pv-tech.cn homepage info - get ready to check PV Tech best content for Hong Kong right away, or after learning these important things about pv-tech.cn

PV-Tech每日光伏新闻秉承客观、公正和准确的报道原则，以全球化视野为中文光伏读者提供高质量的深度报道、市场分析与产品信息，并于每个工作日进行更新。

Visit pv-tech.cn

Key Findings

We analyzed Pv-tech.cn page load time and found that the first response time was 1.4 sec and then it took 51.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 7 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

pv-tech.cn performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

pv-tech.cn

1388 ms

www.pv-tech.cn

13759 ms

jquery.js

19761 ms

jquery-ui.js

19761 ms

www.pv-tech.cn

9405 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 61% of them (83 requests) were addressed to the original Pv-tech.cn, 8% (11 requests) were made to Static.bshare.cn and 6% (8 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Pv-tech.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 499.5 kB (43%)

Content Size

1.2 MB

After Optimization

656.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pv-tech.cn main page is 1.2 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 547.9 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 269.8 kB

  • Original 304.9 kB
  • After minification 295.6 kB
  • After compression 35.1 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 269.8 kB or 88% of the original size.

Image Optimization

-9%

Potential reduce by 48.1 kB

  • Original 547.9 kB
  • After minification 499.8 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. PV Tech images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 142.3 kB

  • Original 254.5 kB
  • After minification 241.7 kB
  • After compression 112.3 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 142.3 kB or 56% of the original size.

CSS Optimization

-81%

Potential reduce by 39.4 kB

  • Original 48.6 kB
  • After minification 42.5 kB
  • After compression 9.2 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. Pv-tech.cn needs all CSS files to be minified and compressed as it can save up to 39.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (56%)

Requests Now

122

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PV Tech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

pv-tech.cn accessibility score

82

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

<input type="image"> elements do not have [alt] text

High

Links do not have a discernible name

Best Practices

pv-tech.cn best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

pv-tech.cn SEO score

64

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

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pv-tech.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Pv-tech.cn 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 PV Tech. 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: