Tools & Wizards About Us
optics.sg screenshot

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 36

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

optics.sg

Laser Optics & Fiber Optical Components-Singapore Optics Shop-http://www.optics.sg

Page Load Speed

5.1 sec in total

First Response

1.5 sec

Resources Loaded

3.5 sec

Page Rendered

163 ms

optics.sg screenshot

About Website

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.sg

Key Findings

We analyzed Optics.sg page load time and found that the first response time was 1.5 sec and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

optics.sg performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

83/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.548

13/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

optics.sg

1455 ms

css.css

680 ms

css2.css

457 ms

AC_RunActiveContent.js

686 ms

html.js

460 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 Optimization Overview & Recommendations

Page size can be reduced by 153.9 kB (79%)

Content Size

195.9 kB

After Optimization

42.0 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Optics.sg main page is 195.9 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 105.5 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 90.9 kB

  • Original 105.5 kB
  • After minification 104.5 kB
  • After compression 14.6 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 90.9 kB or 86% of the original size.

JavaScript Optimization

-58%

Potential reduce by 30.9 kB

  • Original 52.8 kB
  • After minification 48.3 kB
  • After compression 22.0 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. 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.

CSS Optimization

-86%

Potential reduce by 32.2 kB

  • Original 37.6 kB
  • After minification 30.1 kB
  • After compression 5.4 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. 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.

Requests Breakdown

Number of requests can be reduced by 16 (59%)

Requests Now

27

After Optimization

11

  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

optics.sg

optics.sg

1455 ms

css.css

css.css

680 ms

css2.css

css2.css

457 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

686 ms

html.js

html.js

460 ms

swfobject.js

swfobject.js

710 ms

jquery-1.2.2.pack.js

jquery-1.2.2.pack.js

1139 ms

ui.tabs.pack.js

ui.tabs.pack.js

690 ms

setCss.js

setCss.js

906 ms

css.css

css.css

233 ms

logo.gif

logo.gif

227 ms

topsan.gif

topsan.gif

231 ms

kongbai.gif

kongbai.gif

229 ms

search.gif

search.gif

267 ms

topbggreen.gif

topbggreen.gif

228 ms

dh-menu-bg.gif

dh-menu-bg.gif

228 ms

bar_fenlei.gif

bar_fenlei.gif

231 ms

bclass1.gif

bclass1.gif

230 ms

bclass3.gif

bclass3.gif

238 ms

contact2.gif

contact2.gif

229 ms

contact.gif

contact.gif

454 ms

contact3.gif

contact3.gif

454 ms

arr.gif

arr.gif

456 ms

bar_tuijian.gif

bar_tuijian.gif

704 ms

supplier.gif

supplier.gif

460 ms

backtop.gif

backtop.gif

474 ms

terms.gif

terms.gif

663 ms

backdown.gif

backdown.gif

663 ms

Accessibility Review

optics.sg accessibility score

36

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<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

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

<object> elements do not have alternate text

Best Practices

optics.sg best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

optics.sg SEO score

58

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    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.

Social Sharing Optimization

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: