4.6 sec in total
1.5 sec
2.9 sec
248 ms
Click here to check amazing Optics content. Otherwise, check out these important facts you probably never knew about optics.sg
Singapore optics shop sell stock lenses, mirrors, filters, prisms, beamsplitters, waveplates, fiber patchcords, couplers and circulators to buyers.
Visit optics.sgWe analyzed Optics.sg page load time and found that the first response time was 1.5 sec and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
optics.sg performance score
name
value
score
weighting
Value2.7 s
59/100
10%
Value2.7 s
85/100
25%
Value5.2 s
59/100
10%
Value590 ms
50/100
30%
Value0.595
11/100
15%
Value3.5 s
92/100
10%
1473 ms
810 ms
472 ms
807 ms
575 ms
Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Optics.sg and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Optics.sg.
Page size can be reduced by 151.7 kB (79%)
193.1 kB
41.4 kB
In fact, the total size of Optics.sg main page is 193.1 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. 15% of websites need less resources to load. HTML takes 102.7 kB which makes up the majority of the site volume.
Potential reduce by 88.7 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 88.7 kB or 86% of the original size.
Potential reduce by 30.9 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 30.9 kB or 58% of the original size.
Potential reduce by 32.2 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. Optics.sg needs all CSS files to be minified and compressed as it can save up to 32.2 kB or 86% of the original size.
Number of requests can be reduced by 16 (59%)
27
11
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 6 to 1 for JavaScripts and as a result speed up the page load time.
optics.sg
1473 ms
css.css
810 ms
css2.css
472 ms
AC_RunActiveContent.js
807 ms
html.js
575 ms
swfobject.js
724 ms
jquery-1.2.2.pack.js
1178 ms
ui.tabs.pack.js
814 ms
setCss.js
967 ms
css.css
281 ms
logo.gif
405 ms
topsan.gif
279 ms
kongbai.gif
296 ms
search.gif
395 ms
topbggreen.gif
266 ms
dh-menu-bg.gif
266 ms
bar_fenlei.gif
265 ms
bclass1.gif
414 ms
bclass3.gif
412 ms
contact2.gif
415 ms
contact.gif
507 ms
contact3.gif
501 ms
arr.gif
502 ms
bar_tuijian.gif
881 ms
supplier.gif
649 ms
backtop.gif
650 ms
terms.gif
722 ms
backdown.gif
725 ms
optics.sg 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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
<object> elements do not have alternate text
optics.sg 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
optics.sg 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
Document uses plugins
EN
N/A
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Optics.sg 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 Optics.sg main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
optics.sg
Open Graph description is not detected on the main page of 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: