22.5 sec in total
723 ms
21.6 sec
193 ms
Click here to check amazing Vanlong Tech content. Otherwise, check out these important facts you probably never knew about vanlongtech.com
Shenzhen Vanlong Technology Co., LTD
Visit vanlongtech.comWe analyzed Vanlongtech.com page load time and found that the first response time was 723 ms and then it took 21.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
vanlongtech.com performance score
name
value
score
weighting
Value1.4 s
97/100
10%
Value7.2 s
5/100
25%
Value14.9 s
1/100
10%
Value30 ms
100/100
30%
Value0.256
48/100
15%
Value1.7 s
100/100
10%
723 ms
421 ms
424 ms
642 ms
439 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Vanlongtech.com and no external sources were called. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Vanlongtech.com.
Page size can be reduced by 29.2 kB (3%)
946.2 kB
917.0 kB
In fact, the total size of Vanlongtech.com main page is 946.2 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. 20% of websites need less resources to load. Images take 888.8 kB which makes up the majority of the site volume.
Potential reduce by 13.4 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 3.4 kB, which is 19% 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 13.4 kB or 77% of the original size.
Potential reduce by 15.4 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. Vanlong Tech images are well optimized though.
Potential reduce by 0 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. This website has mostly compressed JavaScripts.
Potential reduce by 387 B
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. Vanlongtech.com needs all CSS files to be minified and compressed as it can save up to 387 B or 12% of the original size.
We found no issues to fix!
17
17
The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vanlong Tech. According to our analytics all requests are already optimized.
vanlongtech.com
723 ms
global.css
421 ms
main.css
424 ms
jquery.js
642 ms
SuperSlide.js
439 ms
logo.png
639 ms
20170517163058_60262.jpg
12573 ms
20170517163106_39544.jpg
12668 ms
20170517163123_30187.jpg
14878 ms
20170517163143_83745.jpg
12541 ms
20170831104624_74077.jpg
3348 ms
pic_3.png
1068 ms
pic_4.png
1507 ms
20170918103416_56455.jpg
8536 ms
20170918104606_38655.jpg
8072 ms
20170918105718_41220.jpg
11610 ms
20170918110244_59218.jpg
13635 ms
20170912110612_39344.pdf
20216 ms
pic_1.png
12964 ms
vanlongtech.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.
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
Links do not have a discernible name
vanlongtech.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
vanlongtech.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vanlongtech.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Vanlongtech.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.
vanlongtech.com
Open Graph description is not detected on the main page of Vanlong Tech. 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: