Tools & Wizards About Us

Report Summary

  • 58

    Performance

    Renders faster than
    74% 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

tzhdxd.com

热电偶,热电阻,补偿导线,铂铑热电偶,K型热电偶,温度仪表,双华仪表- 江苏泰州市双华仪表有限公司

Page Load Speed

15.3 sec in total

First Response

2 sec

Resources Loaded

13.1 sec

Page Rendered

151 ms

About Website

Welcome to tzhdxd.com homepage info - get ready to check Tzhdxd best content right away, or after learning these important things about tzhdxd.com

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Visit tzhdxd.com

Key Findings

We analyzed Tzhdxd.com page load time and found that the first response time was 2 sec and then it took 13.3 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

tzhdxd.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

tzhdxd.com

1999 ms

common.css

648 ms

base.js

3159 ms

common.js

867 ms

form.js

1540 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 71% of them (55 requests) were addressed to the original Tzhdxd.com, 18% (14 requests) were made to Skin.54kefu.net and 5% (4 requests) were made to Code2.54kefu.net. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Tzhdxd.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 186.8 kB (14%)

Content Size

1.3 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tzhdxd.com main page is 1.3 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. 20% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 46.1 kB

  • Original 55.3 kB
  • After minification 53.8 kB
  • After compression 9.2 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 46.1 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 36.4 kB

  • Original 1.1 MB
  • After minification 1.1 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. Tzhdxd images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 97.1 kB

  • Original 139.3 kB
  • After minification 116.9 kB
  • After compression 42.1 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 97.1 kB or 70% of the original size.

CSS Optimization

-66%

Potential reduce by 7.2 kB

  • Original 10.9 kB
  • After minification 8.9 kB
  • After compression 3.7 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. Tzhdxd.com needs all CSS files to be minified and compressed as it can save up to 7.2 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (31%)

Requests Now

70

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tzhdxd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tzhdxd.com 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

tzhdxd.com 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

tzhdxd.com 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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tzhdxd.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Tzhdxd.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

Open Graph description is not detected on the main page of Tzhdxd. 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: