2.8 sec in total
623 ms
1.8 sec
330 ms
Welcome to nndvd.com homepage info - get ready to check Nndvd best content for Canada right away, or after learning these important things about nndvd.com
球王会体育作为一家废水处理厂家致力于工业废水处理一站式解决方案,球王会官网拥有污水处理核心技术团队,工业污水处理工程广泛应用于危废处理厂废水处理,表面废水处理、电镀废水处理,化工废水处理等.
Visit nndvd.comWe analyzed Nndvd.com page load time and found that the first response time was 623 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
nndvd.com performance score
name
value
score
weighting
Value5.6 s
6/100
10%
Value29.1 s
0/100
25%
Value16.5 s
0/100
10%
Value3,790 ms
1/100
30%
Value0.216
58/100
15%
Value21.5 s
1/100
10%
623 ms
182 ms
383 ms
229 ms
231 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 93% of them (42 requests) were addressed to the original Nndvd.com, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (754 ms) relates to the external source Bdimg.share.baidu.com.
Page size can be reduced by 754.7 kB (65%)
1.2 MB
410.9 kB
In fact, the total size of Nndvd.com main page is 1.2 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. 45% of websites need less resources to load. Javascripts take 542.4 kB which makes up the majority of the site volume.
Potential reduce by 88.4 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 20.6 kB, which is 20% 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 88.4 kB or 85% of the original size.
Potential reduce by 16.7 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. Nndvd images are well optimized though.
Potential reduce by 393.5 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 393.5 kB or 73% of the original size.
Potential reduce by 256.0 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. Nndvd.com needs all CSS files to be minified and compressed as it can save up to 256.0 kB or 85% of the original size.
Number of requests can be reduced by 15 (37%)
41
26
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nndvd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
nndvd.com
623 ms
ow.css
182 ms
base.css
383 ms
photo_floatbox.css
229 ms
simplicity5684d54f4c419.css
231 ms
jquery.min.js
313 ms
jquery-migrate.min.js
231 ms
ow.js
199 ms
jquery-ui.min.js
500 ms
utils.js
245 ms
photo.js
421 ms
newsfeed.js
295 ms
jquery.mousewheel.js
420 ms
jquery.jscrollpane.js
421 ms
console.js
421 ms
slider.min.js
422 ms
analytics.js
95 ms
theme_image_5.png
110 ms
menu_btn.svg
110 ms
CN.png
112 ms
theme_image_8.jpg
238 ms
avatar_252_1448808689.jpg
151 ms
default_avatar_565e14c28e682.jpeg
235 ms
avatar_249_1449001368.jpg
236 ms
avatar_244_1449001651.jpg
237 ms
avatar_2_1451690705.jpg
247 ms
group-1-565a8dc86813b.jpg
250 ms
group-2-565b0c3ca5519.jpg
281 ms
group-3-5661ea0c44d15.jpg
282 ms
group-4-5663758f85d0c.jpg
289 ms
photo_preview_5_566321c6d6058.jpg
320 ms
photo_preview_4_5660a306b9d04.jpg
343 ms
photo_preview_3_5660a306b910a.jpg
346 ms
photo_preview_2_5660a306b837f.jpg
456 ms
photo_preview_1_5660a306b746e.jpg
374 ms
video-no-video.png
380 ms
miniic_set.svg
410 ms
video_play.png
442 ms
ic_down_arrow.svg
437 ms
powered-by-oxwall.png
466 ms
share.js
754 ms
simplicity-webfont.woff
472 ms
simplicity_medium-webfont.woff
420 ms
simplicity_light-webfont.woff
465 ms
collect
13 ms
nndvd.com accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
nndvd.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
nndvd.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
ZH
CN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nndvd.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 language. Our system also found out that Nndvd.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.
nndvd.com
Open Graph description is not detected on the main page of Nndvd. 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: