Tools & Wizards About Us
nn234.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

nn234.com

www.nn234.com-官网首页

Page Load Speed

2 sec in total

First Response

409 ms

Resources Loaded

1.5 sec

Page Rendered

107 ms

nn234.com screenshot

About Website

Visit nn234.com now to see the best up-to-date Nn 234 content and also check out these interesting facts you probably never knew about nn234.com

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Key Findings

We analyzed Nn234.com page load time and found that the first response time was 409 ms and then it took 1.6 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

nn234.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.559

13/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

nn234.com

409 ms

prototype.js

629 ms

general.js

310 ms

popup_menu.js

231 ms

css

24 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 79% of them (11 requests) were addressed to the original Nn234.com, 14% (2 requests) were made to Fonts.gstatic.com and 7% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (629 ms) belongs to the original domain Nn234.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 195.5 kB (74%)

Content Size

265.8 kB

After Optimization

70.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nn234.com main page is 265.8 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. 15% of websites need less resources to load. Javascripts take 208.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 7.8 kB

  • Original 10.7 kB
  • After minification 9.1 kB
  • After compression 2.9 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 1.6 kB, which is 15% 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 7.8 kB or 73% of the original size.

Image Optimization

-29%

Potential reduce by 10.7 kB

  • Original 36.5 kB
  • After minification 25.7 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, Nn 234 needs image optimization as it can save up to 10.7 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-81%

Potential reduce by 169.0 kB

  • Original 208.4 kB
  • After minification 152.8 kB
  • After compression 39.4 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 169.0 kB or 81% of the original size.

CSS Optimization

-79%

Potential reduce by 8.0 kB

  • Original 10.2 kB
  • After minification 8.2 kB
  • After compression 2.2 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. Nn234.com needs all CSS files to be minified and compressed as it can save up to 8.0 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nn 234. According to our analytics all requests are already optimized.

Network Requests Diagram

nn234.com

nn234.com

409 ms

prototype.js

prototype.js

629 ms

general.js

general.js

310 ms

popup_menu.js

popup_menu.js

231 ms

css

css

24 ms

global.css

global.css

240 ms

home.png

home.png

102 ms

logo.png

logo.png

111 ms

thead_bg.jpg

thead_bg.jpg

189 ms

task.php

task.php

419 ms

collapse.gif

collapse.gif

170 ms

on.png

on.png

169 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

32 ms

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

42 ms

Accessibility Review

nn234.com accessibility score

64

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

nn234.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

nn234.com SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nn234.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Nn234.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

nn234.com

Open Graph description is not detected on the main page of Nn 234. 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: