8.3 sec in total
496 ms
7 sec
803 ms
Visit control-optics.com now to see the best up-to-date Control Optics content and also check out these interesting facts you probably never knew about control-optics.com
Control Optics Taiwan (COT) was established in 1986. We are specialized in research, development and production of various kinds of precision optics. We look forward to become your most valuable partn...
Visit control-optics.comWe analyzed Control-optics.com page load time and found that the first response time was 496 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
control-optics.com performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value5.0 s
27/100
25%
Value10.5 s
7/100
10%
Value240 ms
85/100
30%
Value0.773
5/100
15%
Value8.4 s
38/100
10%
496 ms
1004 ms
781 ms
868 ms
789 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 79% of them (50 requests) were addressed to the original Control-optics.com, 8% (5 requests) were made to Goshop.gtut.com.tw and 8% (5 requests) were made to Rwd.gtut.com.tw. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Control-optics.com.
Page size can be reduced by 96.4 kB (7%)
1.5 MB
1.4 MB
In fact, the total size of Control-optics.com main page is 1.5 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 1.2 MB which makes up the majority of the site volume.
Potential reduce by 47.4 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 18.0 kB, which is 32% 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 47.4 kB or 85% of the original size.
Potential reduce by 37.0 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. Control Optics images are well optimized though.
Potential reduce by 7.0 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 5.1 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. Control-optics.com has all CSS files already compressed.
Number of requests can be reduced by 30 (52%)
58
28
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Control 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 20 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
control-optics.com
496 ms
www.control-optics.com
1004 ms
bootstrap.min.css
781 ms
font-awesome.min.css
868 ms
owl.carousel.css
789 ms
owl.theme.css
876 ms
responsive-tables.css
792 ms
jquery.lightbox-0.5.css
794 ms
style.css
1750 ms
socicon.css
1368 ms
lang-en.css
1627 ms
gdpr.js
840 ms
gdpr.init.js
840 ms
jquery-1.11.1.min.js
1176 ms
jquery.validationEngine-en.js
979 ms
jquery.validationEngine.js
977 ms
script.js
978 ms
bootstrap.min.js
1631 ms
member.js
1644 ms
cart.js
1456 ms
pgwslideshow.js
1973 ms
jquery_lazyload.js
3274 ms
jquery.lightbox-0.5.min.js
2397 ms
jquery.responsive-tables.min.js
2401 ms
bootstrap-tabcollapse.js
2422 ms
owl.carousel.min.js
2521 ms
matchMedia.js
2746 ms
main.js
3163 ms
pgwslideshow.css
3171 ms
validationEngine.jquery.css
979 ms
api.js
31 ms
SealAuthentication.aspx
302 ms
1616730828.jpg
712 ms
1560411105.jpg
754 ms
index-main-bg.jpg
770 ms
1540876890.jpg
761 ms
1551881814.jpg
764 ms
1541484702.jpg
767 ms
1541484713.jpg
769 ms
1541484720.jpg
776 ms
1541484726.jpg
772 ms
1541484733.jpg
778 ms
1541484740.jpg
777 ms
1541484746.jpg
780 ms
1541484752.jpg
781 ms
1634887048.png
783 ms
1634887680.png
783 ms
1634887696.png
789 ms
1634887712.png
784 ms
1634887732.png
786 ms
1634887748.png
788 ms
1634887762.png
790 ms
1634887774.png
791 ms
index-staff.jpg
833 ms
index-staff-xs.jpg
802 ms
footer-bg.jpg
810 ms
fontawesome-webfont.woff
1919 ms
Socicon.ttf
2130 ms
TpSeal.aspx
1140 ms
1542085823.png
3 ms
tarteaucitron.css
783 ms
tarteaucitron.zh.js
769 ms
tarteaucitron.services.js
761 ms
control-optics.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
<frame> or <iframe> elements do not have a title
control-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
control-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
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 Control-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 Control-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.
control-optics.com
Open Graph data is detected on the main page of Control Optics. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: