5.8 sec in total
812 ms
3.7 sec
1.3 sec
Visit sharpstar-optics.com now to see the best up-to-date Sharpstar Optics content and also check out these interesting facts you probably never knew about sharpstar-optics.com
Jiaxing Sharpstar Optical Instrument Co., Ltd. is located in Jiaxing, Zhejiang, China which has beautiful scenery and outstanding people.
Visit sharpstar-optics.comWe analyzed Sharpstar-optics.com page load time and found that the first response time was 812 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
sharpstar-optics.com performance score
name
value
score
weighting
Value2.1 s
80/100
10%
Value6.6 s
8/100
25%
Value5.0 s
63/100
10%
Value350 ms
73/100
30%
Value0.331
34/100
15%
Value2.7 s
97/100
10%
812 ms
229 ms
861 ms
455 ms
456 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that all of those requests were addressed to Sharpstar-optics.com and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Sharpstar-optics.com.
Page size can be reduced by 115.0 kB (5%)
2.2 MB
2.1 MB
In fact, the total size of Sharpstar-optics.com main page is 2.2 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. 40% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 11.8 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 1.8 kB, which is 11% 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 11.8 kB or 71% of the original size.
Potential reduce by 91.0 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. Sharpstar Optics images are well optimized though.
Potential reduce by 10.3 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 10.3 kB or 16% of the original size.
Potential reduce by 1.9 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. Sharpstar-optics.com needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 25% of the original size.
Number of requests can be reduced by 4 (12%)
34
30
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sharpstar Optics. 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.
sharpstar-optics.com
812 ms
index.css
229 ms
NSW_Index.js
861 ms
jquery.lazyload.min.js
455 ms
modernizr-custom-v2.7.1.min.js
456 ms
jquery-finger-v0.1.0.min.js
462 ms
form.js
462 ms
flickerplate.css
505 ms
flickerplate.min.js
678 ms
logo.jpg
453 ms
1632357311.jpg
1610 ms
1640570523.jpg
774 ms
1632357326.jpg
862 ms
1641522321.jpg
914 ms
1641522409.jpg
770 ms
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861 ms
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1354 ms
1658370215.jpg
1592 ms
1653960828.jpg
1529 ms
1653634920.jpg
1891 ms
1619506175.jpg
2006 ms
bj.jpg
2019 ms
about_btn.gif
1780 ms
1564644604.jpg
1817 ms
hy.jpg
1832 ms
zw.gif
1261 ms
english.gif
1267 ms
ld_line.png
1200 ms
case_line.jpg
1241 ms
focus_icon.png
1368 ms
focus_dot2.png
1373 ms
dy_bg.gif
1416 ms
dy_jt.png
1397 ms
arrow-left-light.png
1418 ms
arrow-right-light.png
1442 ms
enbanner1.jpg
1790 ms
enbanner2.jpg
1612 ms
sharpstar-optics.com accessibility score
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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.
sharpstar-optics.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
sharpstar-optics.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
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sharpstar-optics.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 Sharpstar-optics.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.
sharpstar-optics.com
Open Graph description is not detected on the main page of Sharpstar Optics. 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: