Tools & Wizards About Us
valve-check.com screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

valve-check.com

Gate valve,Globe valve,Check valve,Ball valve,Butterfly valve,Plug valve,safety valve,China Valve Manufacturer From Ningbo Valve Factory

Page Load Speed

1.7 sec in total

First Response

220 ms

Resources Loaded

1.3 sec

Page Rendered

170 ms

valve-check.com screenshot

About Website

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

Ningbo Valve Factory is a China-leading manufacturer of industrial butterfly valve, gate valve, globe valve, check valve, ball valve, safety & relief valve, plug valve, forged steel valve, cast steel ...

Visit valve-check.com

Key Findings

We analyzed Valve-check.com page load time and found that the first response time was 220 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

valve-check.com performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

92/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

valve-check.com

220 ms

style.css

232 ms

sfmenu.js

235 ms

jquery.min.js

297 ms

dropdown.js

234 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that all of those requests were addressed to Valve-check.com and no external sources were called. The less responsive or slowest element that took the longest time to load (427 ms) belongs to the original domain Valve-check.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.6 kB (13%)

Content Size

368.1 kB

After Optimization

321.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Valve-check.com main page is 368.1 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. 30% of websites need less resources to load. Images take 274.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 18.6 kB

  • Original 22.6 kB
  • After minification 21.6 kB
  • After compression 4.0 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 18.6 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 274.0 kB
  • After minification 272.3 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. Valve Check images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 24.4 kB

  • Original 65.5 kB
  • After minification 63.9 kB
  • After compression 41.0 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 24.4 kB or 37% of the original size.

CSS Optimization

-30%

Potential reduce by 1.9 kB

  • Original 6.1 kB
  • After minification 6.1 kB
  • After compression 4.3 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. Valve-check.com needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (30%)

Requests Now

44

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Valve Check. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

valve-check.com

valve-check.com

220 ms

style.css

style.css

232 ms

sfmenu.js

sfmenu.js

235 ms

jquery.min.js

jquery.min.js

297 ms

dropdown.js

dropdown.js

234 ms

sifr.js

sifr.js

248 ms

sifr-config.js

sifr-config.js

234 ms

jquery.cycle.min.js

jquery.cycle.min.js

295 ms

custom.js

custom.js

292 ms

lang.js

lang.js

293 ms

bg.gif

bg.gif

65 ms

nvf-logo.jpg

nvf-logo.jpg

64 ms

valve-factory_01.jpg

valve-factory_01.jpg

65 ms

gate-valve_02.jpg

gate-valve_02.jpg

177 ms

forged-steel-valve_03.jpg

forged-steel-valve_03.jpg

66 ms

ball-valve_04.jpg

ball-valve_04.jpg

120 ms

cast-steel-valve_05.jpg

cast-steel-valve_05.jpg

179 ms

go_img.gif

go_img.gif

127 ms

contact.gif

contact.gif

172 ms

1321956720.jpg

1321956720.jpg

124 ms

1321970678.jpg

1321970678.jpg

180 ms

1321971489.jpg

1321971489.jpg

183 ms

1321972008.jpg

1321972008.jpg

185 ms

1321972788.jpg

1321972788.jpg

232 ms

1321973819.jpg

1321973819.jpg

243 ms

1321974156.jpg

1321974156.jpg

242 ms

1321974090.jpg

1321974090.jpg

241 ms

1321974972.jpg

1321974972.jpg

243 ms

1321974902.jpg

1321974902.jpg

243 ms

1322030129.jpg

1322030129.jpg

292 ms

1322039161.jpg

1322039161.jpg

301 ms

1322128918.jpg

1322128918.jpg

307 ms

1322193309.jpg

1322193309.jpg

306 ms

1322730359.jpg

1322730359.jpg

311 ms

1322731183.jpg

1322731183.jpg

310 ms

english.jpg

english.jpg

351 ms

deutsch1.jpg

deutsch1.jpg

368 ms

espanol.jpg

espanol.jpg

366 ms

francies.jpg

francies.jpg

366 ms

italino.jpg

italino.jpg

369 ms

portgues.jpg

portgues.jpg

369 ms

japan.jpg

japan.jpg

410 ms

korea.jpg

korea.jpg

425 ms

arabia.jpg

arabia.jpg

427 ms

russia.jpg

russia.jpg

426 ms

Accessibility Review

valve-check.com accessibility score

38

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

valve-check.com best practices score

67

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

SEO Factors

valve-check.com SEO score

69

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Valve-check.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Valve-check.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

valve-check.com

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