10.7 sec in total
408 ms
8.3 sec
2 sec
Welcome to sum-battery.com homepage info - get ready to check SUM Battery best content right away, or after learning these important things about sum-battery.com
SUM Electronics is one of China's leading special battery, storage battery, industrial battery, powering solutions manufacturers and suppliers. Our factory also accepts customized orders. Welcome to g...
Visit sum-battery.comWe analyzed Sum-battery.com page load time and found that the first response time was 408 ms and then it took 10.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
sum-battery.com performance score
name
value
score
weighting
Value3.4 s
37/100
10%
Value4.3 s
42/100
25%
Value12.1 s
4/100
10%
Value1,000 ms
27/100
30%
Value0.222
56/100
15%
Value17.8 s
4/100
10%
408 ms
532 ms
29 ms
171 ms
173 ms
Our browser made a total of 122 requests to load all elements on the main page. We found that 42% of them (51 requests) were addressed to the original Sum-battery.com, 20% (25 requests) were made to Hongwei.4dkankan.com and 12% (15 requests) were made to Css02.v15cdn.com. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source Hongwei.4dkankan.com.
Page size can be reduced by 97.7 kB (3%)
3.0 MB
2.9 MB
In fact, the total size of Sum-battery.com main page is 3.0 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. 55% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 44.2 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 44.2 kB or 80% of the original size.
Potential reduce by 12.3 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. SUM Battery images are well optimized though.
Potential reduce by 11.5 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. This website has mostly compressed JavaScripts.
Potential reduce by 29.6 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. Sum-battery.com needs all CSS files to be minified and compressed as it can save up to 29.6 kB or 44% of the original size.
Number of requests can be reduced by 46 (41%)
112
66
The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SUM Battery. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
sum-battery.com
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www.sum-battery.com
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app.css
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sum-battery.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
Image elements do not have [alt] attributes
Form elements do not have associated labels
sum-battery.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
sum-battery.com SEO score
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sum-battery.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 Sum-battery.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.
sum-battery.com
Open Graph data is detected on the main page of SUM Battery. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: