Tools & Wizards About Us
nrh.cn screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

nrh.cn

NRH - 搭扣要选对品牌选纳汇

Page Load Speed

11 sec in total

First Response

3.6 sec

Resources Loaded

7.3 sec

Page Rendered

100 ms

nrh.cn screenshot

About Website

Welcome to nrh.cn homepage info - get ready to check NRH best content right away, or after learning these important things about nrh.cn

纳汇五金始于1996年，隶属于母公司纳汇集团。是目前国内具有规模性的箱体五金公司，也是一家集研发、生产、销售一体化综合性工业制造企业。主研产品：搭扣、锁扣、拉手、合页、包角等。涉及领域:军工、医疗、消防、交通、航天、医疗、公安、能源、家居、演艺。

Visit nrh.cn

Key Findings

We analyzed Nrh.cn page load time and found that the first response time was 3.6 sec and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

nrh.cn performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value17.0 s

0/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.512

15/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

nrh.cn

3639 ms

system.css

68 ms

jquery-1.11.3.min.js

266 ms

17582176.js

3658 ms

templet-link.png

66 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 91% of them (10 requests) were addressed to the original Nrh.cn, 9% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (3.7 sec) relates to the external source Js.users.51.la.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.9 kB (51%)

Content Size

49.2 kB

After Optimization

24.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nrh.cn main page is 49.2 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. Only 10% of websites need less resources to load. Images take 27.1 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 2.8 kB

  • Original 4.2 kB
  • After minification 3.6 kB
  • After compression 1.4 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 603 B, which is 14% 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 2.8 kB or 66% of the original size.

Image Optimization

-28%

Potential reduce by 7.5 kB

  • Original 27.1 kB
  • After minification 19.6 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. Obviously, NRH needs image optimization as it can save up to 7.5 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 1.1 kB

  • Original 1.9 kB
  • After minification 1.8 kB
  • After compression 729 B

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 1.1 kB or 61% of the original size.

CSS Optimization

-84%

Potential reduce by 13.5 kB

  • Original 16.0 kB
  • After minification 8.9 kB
  • After compression 2.5 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. Nrh.cn needs all CSS files to be minified and compressed as it can save up to 13.5 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NRH. According to our analytics all requests are already optimized.

Network Requests Diagram

nrh.cn

nrh.cn

3639 ms

system.css

system.css

68 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

266 ms

17582176.js

17582176.js

3658 ms

templet-link.png

templet-link.png

66 ms

common-avatar.png

common-avatar.png

67 ms

0776b00285764dcd328d406408ad8e71_tel.png

0776b00285764dcd328d406408ad8e71_tel.png

132 ms

0776b00285764dcd328d406408ad8e71_email.png

0776b00285764dcd328d406408ad8e71_email.png

136 ms

search-icon.png

search-icon.png

123 ms

main-content-top-bar-1.png

main-content-top-bar-1.png

126 ms

contact-qq.png

contact-qq.png

132 ms

Accessibility Review

nrh.cn accessibility score

66

Accessibility Issues

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

nrh.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nrh.cn 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 Nrh.cn 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 Nrh.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

nrh.cn

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