5 sec in total
385 ms
4.3 sec
304 ms
Welcome to pre-airshaft.com homepage info - get ready to check PRE Air Shaft best content right away, or after learning these important things about pre-airshaft.com
PRE Converting--DongGuan Precision Converting Industrial Co.Ltd,is a chinese manufacturer producing air shaft,airshafts,slip shaft and other converting machine parts since 2002.
Visit pre-airshaft.comWe analyzed Pre-airshaft.com page load time and found that the first response time was 385 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
pre-airshaft.com performance score
name
value
score
weighting
Value1.8 s
90/100
10%
Value2.2 s
95/100
25%
Value2.5 s
98/100
10%
Value0 ms
100/100
30%
Value0.001
100/100
15%
Value2.6 s
98/100
10%
385 ms
297 ms
89 ms
282 ms
193 ms
Our browser made a total of 61 requests to load all elements on the main page. We found that all of those requests were addressed to Pre-airshaft.com and no external sources were called. The less responsive or slowest element that took the longest time to load (607 ms) belongs to the original domain Pre-airshaft.com.
Page size can be reduced by 72.3 kB (7%)
1.1 MB
1.0 MB
In fact, the total size of Pre-airshaft.com main page is 1.1 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. 35% of websites need less resources to load. Images take 971.2 kB which makes up the majority of the site volume.
Potential reduce by 22.3 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 22.3 kB or 81% of the original size.
Potential reduce by 40.0 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. PRE Air Shaft images are well optimized though.
Potential reduce by 8.1 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 8.1 kB or 12% of the original size.
Potential reduce by 2.0 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. Pre-airshaft.com needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 27% of the original size.
Number of requests can be reduced by 20 (35%)
57
37
The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PRE Air Shaft. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
pre-airshaft.com
385 ms
pre-airshaft.com
297 ms
css.css
89 ms
jquery-1.4.2.min.js
282 ms
ImageAutoSize.js
193 ms
MSClass.js
270 ms
my.js
203 ms
highslide.css
271 ms
highslide-with-gallery.packed.js
299 ms
bg.jpg
67 ms
top.jpg
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136 ms
en.jpg
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sp.jpg
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cn.jpg
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header.jpg
129 ms
logo.jpg
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tu.jpg
200 ms
inq.jpg
134 ms
btn.jpg
135 ms
tel.jpg
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nav.jpg
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libg2.jpg
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libg.jpg
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tel2.jpg
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title.jpg
514 ms
libg3.jpg
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titlebar.jpg
535 ms
pbox.jpg
540 ms
casebar.jpg
568 ms
mapbg.jpg
607 ms
btn1.jpg
509 ms
btn2.jpg
518 ms
tou.jpg
533 ms
footer.png
536 ms
tu1.png
509 ms
tu2.png
509 ms
tu3.png
516 ms
drop-shadow.png
68 ms
zoomout.cur
67 ms
loader.white.gif
68 ms
pre-airshaft.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
pre-airshaft.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
pre-airshaft.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Document uses plugins
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pre-airshaft.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 Pre-airshaft.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.
pre-airshaft.com
Open Graph description is not detected on the main page of PRE Air Shaft. 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: