Tools & Wizards About Us
nsvvalve.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

nsvvalve.com

Ball Valve,Gate Valve,Knife Gate Valve,Slab Gate Valve,Globe Valve - NSV VALVE CORPORATION

Page Load Speed

14.7 sec in total

First Response

379 ms

Resources Loaded

13.8 sec

Page Rendered

455 ms

nsvvalve.com screenshot

About Website

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

YONGJIA NSV VALVE CO.,LTD. is one of leading manufacturers of industrial valves,supplying forged and cast steel industrial valves for applications in the chemical,petrochemical,oil and gas,nuclear pow...

Visit nsvvalve.com

Key Findings

We analyzed Nsvvalve.com page load time and found that the first response time was 379 ms and then it took 14.3 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

nsvvalve.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.905

3/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

nsvvalve.com

379 ms

www.nsvvalve.com

424 ms

www.nsvvalve.com

512 ms

style.css

93 ms

2021071409190419492.png

235 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 97% of them (73 requests) were addressed to the original Nsvvalve.com, 1% (1 request) were made to Sdk.51.la and 1% (1 request) were made to Collect-v6.51.la. The less responsive or slowest element that took the longest time to load (8.6 sec) belongs to the original domain Nsvvalve.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 154.8 kB (9%)

Content Size

1.6 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nsvvalve.com main page is 1.6 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. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 52.0 kB

  • Original 60.8 kB
  • After minification 54.6 kB
  • After compression 8.8 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. 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 52.0 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 69.2 kB

  • Original 1.5 MB
  • After minification 1.4 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. NSV Valve images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 24.3 kB

  • Original 95.6 kB
  • After minification 95.6 kB
  • After compression 71.3 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 24.3 kB or 25% of the original size.

CSS Optimization

-35%

Potential reduce by 9.3 kB

  • Original 26.4 kB
  • After minification 26.4 kB
  • After compression 17.1 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. Nsvvalve.com needs all CSS files to be minified and compressed as it can save up to 9.3 kB or 35% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (13%)

Requests Now

67

After Optimization

58

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NSV Valve. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nsvvalve.com

nsvvalve.com

379 ms

www.nsvvalve.com

www.nsvvalve.com

424 ms

www.nsvvalve.com

www.nsvvalve.com

512 ms

style.css

style.css

93 ms

2021071409190419492.png

2021071409190419492.png

235 ms

mn2dt_bg01.jpg

mn2dt_bg01.jpg

308 ms

mn2dt_bg02.jpg

mn2dt_bg02.jpg

426 ms

mn2dt_bg03.jpg

mn2dt_bg03.jpg

432 ms

js-sdk-pro.min.js

js-sdk-pro.min.js

1349 ms

jquery.min.js

jquery.min.js

596 ms

style.js

style.js

366 ms

lang.js

lang.js

361 ms

layer.js

layer.js

383 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

432 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

445 ms

swiper.min.css

swiper.min.css

459 ms

swiper.min.js

swiper.min.js

1600 ms

none.jpg

none.jpg

498 ms

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20210707161612161253.png

503 ms

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20210707161733173341.png

516 ms

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20210707161834183431.png

530 ms

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20210707161859185982.png

570 ms

20210707161920192014.png

20210707161920192014.png

573 ms

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20210707164259425986.png

590 ms

1_02.png

1_02.png

1080 ms

1_03.png

1_03.png

642 ms

1_03.jpg

1_03.jpg

1127 ms

20210714151310131028.JPG

20210714151310131028.JPG

1144 ms

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20210714151326132690.jpg

1212 ms

2021071415140014095.jpg

2021071415140014095.jpg

714 ms

20210714151415141550.jpg

20210714151415141550.jpg

785 ms

20210714151436143670.JPG

20210714151436143670.JPG

858 ms

20210714151452145256.jpg

20210714151452145256.jpg

1493 ms

20210714151512151282.JPG

20210714151512151282.JPG

1827 ms

left.jpg

left.jpg

1196 ms

right.jpg

right.jpg

1822 ms

1_04.jpg

1_04.jpg

3727 ms

1_05.jpg

1_05.jpg

1825 ms

1_06.jpg

1_06.jpg

1564 ms

1_07.jpg

1_07.jpg

1636 ms

fonts.css

fonts.css

1590 ms

1_08.png

1_08.png

1599 ms

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20210708112646264665.jpg

1527 ms

2021070811270027096.jpg

2021070811270027096.jpg

1469 ms

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20210708112710271050.jpg

1465 ms

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20210708112719271917.jpg

1449 ms

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1428 ms

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2021071421150715760.jpg

1833 ms

20210714211827182735.jpg

20210714211827182735.jpg

1433 ms

footlogo.png

footlogo.png

1966 ms

1_09.jpg

1_09.jpg

1430 ms

share1.png

share1.png

1409 ms

share2.png

share2.png

1426 ms

share3.png

share3.png

1445 ms

share4.png

share4.png

1448 ms

all-m.gif

all-m.gif

1817 ms

loading.gif

loading.gif

323 ms

1_01.jpg

1_01.jpg

8573 ms

ps_arrow.jpg

ps_arrow.jpg

463 ms

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20210708104510451088.jpg

2839 ms

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20210708104525452595.jpg

2770 ms

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2562 ms

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20210708105737573775.jpg

4757 ms

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20210708105759575972.jpg

3921 ms

20210708105824582468.jpg

20210708105824582468.jpg

4654 ms

footer.jpg

footer.jpg

4518 ms

ITCAvantGardeStd-Bk.woff

ITCAvantGardeStd-Bk.woff

4573 ms

ITCAvantGardeStd-Bold.woff

ITCAvantGardeStd-Bold.woff

5066 ms

collect

collect

1468 ms

layer.css

layer.css

4445 ms

20210706194055405578.jpg

20210706194055405578.jpg

6163 ms

2022030709330033010.jpg

2022030709330033010.jpg

4947 ms

2022030710290129148.jpg

2022030710290129148.jpg

3617 ms

ITCAvantGardeStd-Bk.ttf

ITCAvantGardeStd-Bk.ttf

2640 ms

ITCAvantGardeStd-Bold.ttf

ITCAvantGardeStd-Bold.ttf

1088 ms

Accessibility Review

nsvvalve.com accessibility score

51

Accessibility Issues

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

Image elements do not have [alt] attributes

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

nsvvalve.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nsvvalve.com SEO score

77

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

High

robots.txt is not valid

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

nsvvalve.com

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