15.9 sec in total
3.2 sec
12.4 sec
200 ms
Welcome to jemma.com.vn homepage info - get ready to check Jemma best content for Vietnam right away, or after learning these important things about jemma.com.vn
PNJ tự hào là công ty chế tác và bán lẻ trang sức hàng đầu tại châu Á ❤️Khách hàng là trọng tâm ✔️Mua Online nhanh chóng, đơn giản ☎️1800545457 (Miễn Phí)
Visit jemma.com.vnWe analyzed Jemma.com.vn page load time and found that the first response time was 3.2 sec and then it took 12.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
jemma.com.vn performance score
name
value
score
weighting
Value4.4 s
16/100
10%
Value25.6 s
0/100
25%
Value17.4 s
0/100
10%
Value7,970 ms
0/100
30%
Value0
100/100
15%
Value28.0 s
0/100
10%
3232 ms
1391 ms
1895 ms
1394 ms
1403 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 90% of them (53 requests) were addressed to the original Jemma.com.vn, 5% (3 requests) were made to Google-analytics.com and 2% (1 request) were made to Opi.yahoo.com. The less responsive or slowest element that took the longest time to load (7.3 sec) belongs to the original domain Jemma.com.vn.
Page size can be reduced by 497.9 kB (25%)
2.0 MB
1.5 MB
In fact, the total size of Jemma.com.vn main page is 2.0 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. 20% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 30.4 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. 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 30.4 kB or 85% of the original size.
Potential reduce by 349.5 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, Jemma needs image optimization as it can save up to 349.5 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 97.7 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 97.7 kB or 61% of the original size.
Potential reduce by 20.4 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. Jemma.com.vn needs all CSS files to be minified and compressed as it can save up to 20.4 kB or 81% of the original size.
Number of requests can be reduced by 26 (45%)
58
32
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jemma. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
jemma.com.vn
3232 ms
ads.js
1391 ms
style.css
1895 ms
page.css
1394 ms
slider.css
1403 ms
jquery.hrzAccordion.defaults.css
1638 ms
jquery.hrzAccordion.examples.css
1644 ms
jquery.lightbox-0.5.css
1891 ms
banner5.jpg
3672 ms
icon_header.gif
1677 ms
home_search.gif
1902 ms
shopping_cart_M.jpg
1927 ms
pixel_trans.gif
2155 ms
online
889 ms
icon_facebook.jpg
1922 ms
s1.jpg
3427 ms
s2.jpg
4271 ms
s3.jpg
4014 ms
s4.jpg
4184 ms
s5.jpg
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text_hang_hot.jpg
3924 ms
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SND2WJ11858.600_s.jpg
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6428 ms
jquery.min.js
7062 ms
jquery.easing.1.2.js
6039 ms
jquery.hint.js
6403 ms
jquery.anythingslider.js
6692 ms
jquery.lavalamp.min.js
6542 ms
jquery.scrollTo-min.js
6888 ms
jquery.scrollShow.js
6905 ms
jquery.hrzAccordion.js
7210 ms
pop.js
113 ms
jquery.hrzAccordion.examples.js
6185 ms
jquery.lightbox-0.5.js
6813 ms
coin-slider.min.js
6736 ms
checkInventory.php
91 ms
SMD2WJ11859.600_s.jpg
7018 ms
SLH2WJ11862.600_s.jpg
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SLH2WJ11855.600_s.jpg
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bg_menu.jpg
6314 ms
logo_header_1.jpg
7255 ms
boxsearch.gif
6593 ms
shopping_cart_textbox.jpg
6568 ms
bg_choose_close.jpg
7270 ms
label_cate_nutrang.jpg
6827 ms
label_cate_phukien.jpg
5344 ms
telephone.jpg
5398 ms
footer_corner.jpg
4974 ms
footer.jpg
5423 ms
ga.js
21 ms
__utm.gif
13 ms
__utm.gif
5 ms
jemma.com.vn 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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
jemma.com.vn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Requests the notification permission on page load
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
Missing source maps for large first-party JavaScript
jemma.com.vn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
VI
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jemma.com.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Jemma.com.vn 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.
jemma.com.vn
Open Graph description is not detected on the main page of Jemma. 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: