Tools & Wizards About Us
optics.org screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

optics.org

optics.org - The Business of Photonics: Latest news, analysis and in-depth reporting

Page Load Speed

2.4 sec in total

First Response

156 ms

Resources Loaded

2 sec

Page Rendered

314 ms

optics.org screenshot

About Website

Visit optics.org now to see the best up-to-date Optics content for United States and also check out these interesting facts you probably never knew about optics.org

optics, photonics, laser and imaging news coverage including clean technologies, defense/aerospace, life science/medicine and laser materials processing applications

Visit optics.org

Key Findings

We analyzed Optics.org page load time and found that the first response time was 156 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

optics.org performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value440 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0.569

12/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

optics.org

156 ms

optics.org

462 ms

optics.css

224 ms

iMAWebCookie.js

76 ms

analytics.js

59 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 88% of them (59 requests) were addressed to the original Optics.org, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Optics.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 96.2 kB (11%)

Content Size

858.6 kB

After Optimization

762.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Optics.org main page is 858.6 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. 50% of websites need less resources to load. Images take 756.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 34.1 kB

  • Original 45.0 kB
  • After minification 43.3 kB
  • After compression 10.9 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 34.1 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 35.6 kB

  • Original 756.5 kB
  • After minification 720.9 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. Optics images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 90 B

  • Original 26.1 kB
  • After minification 26.1 kB
  • After compression 26.0 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.

CSS Optimization

-85%

Potential reduce by 26.4 kB

  • Original 31.0 kB
  • After minification 26.5 kB
  • After compression 4.6 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.org needs all CSS files to be minified and compressed as it can save up to 26.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (8%)

Requests Now

62

After Optimization

57

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 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.org

optics.org

156 ms

optics.org

optics.org

462 ms

optics.css

optics.css

224 ms

iMAWebCookie.js

iMAWebCookie.js

76 ms

analytics.js

analytics.js

59 ms

gtm.js

gtm.js

102 ms

insight.min.js

insight.min.js

64 ms

boomerang.min.js

boomerang.min.js

81 ms

spielogo.png

spielogo.png

82 ms

dllogo.png

dllogo.png

116 ms

cclogo.png

cclogo.png

157 ms

oologo.png

oologo.png

244 ms

logo.png

logo.png

245 ms

2766.jpg

2766.jpg

382 ms

search_icon.png

search_icon.png

252 ms

mobile.png

mobile.png

244 ms

tocimage.jpg

tocimage.jpg

469 ms

tocimage.jpg

tocimage.jpg

475 ms

tocimage.jpg

tocimage.jpg

316 ms

tocimage.jpg

tocimage.jpg

414 ms

tocimage.jpg

tocimage.jpg

477 ms

tocimage.jpg

tocimage.jpg

547 ms

tocimage.jpg

tocimage.jpg

499 ms

tocimage.jpg

tocimage.jpg

694 ms

tocimage.jpg

tocimage.jpg

552 ms

tocimage.jpg

tocimage.jpg

558 ms

tocimage.jpg

tocimage.jpg

561 ms

tocimage.jpg

tocimage.jpg

660 ms

25496-toc.jpg

25496-toc.jpg

628 ms

25223-toc.jpg

25223-toc.jpg

634 ms

25189-toc.png

25189-toc.png

643 ms

25510-toc.png

25510-toc.png

644 ms

25511-toc.jpg

25511-toc.jpg

712 ms

25512-toc.jpg

25512-toc.jpg

716 ms

2-113.jpg

2-113.jpg

718 ms

2-109.jpg

2-109.jpg

719 ms

2-114.jpg

2-114.jpg

733 ms

2-119.jpg

2-119.jpg

778 ms

webinars.jpg

webinars.jpg

786 ms

banner.png

banner.png

790 ms

banner.png

banner.png

867 ms

banner.gif

banner.gif

792 ms

banner.gif

banner.gif

808 ms

banner.gif

banner.gif

1102 ms

collect

collect

15 ms

insight_tag_errors.gif

insight_tag_errors.gif

202 ms

banner.jpg

banner.jpg

785 ms

js

js

40 ms

banner.jpg

banner.jpg

717 ms

banner.jpg

banner.jpg

717 ms

banner.gif

banner.gif

645 ms

banner.jpg

banner.jpg

698 ms

banner.gif

banner.gif

701 ms

banner.jpg

banner.jpg

696 ms

banner.gif

banner.gif

631 ms

banner.jpg

banner.jpg

582 ms

vfcover.png

vfcover.png

678 ms

arcover.png

arcover.png

628 ms

pvtcover.png

pvtcover.png

548 ms

nlcover.png

nlcover.png

548 ms

2787.jpg

2787.jpg

540 ms

2768.jpg

2768.jpg

552 ms

twitter.png

twitter.png

547 ms

linkedin.png

linkedin.png

556 ms

rss.png

rss.png

605 ms

oo26.png

oo26.png

543 ms

top-icon.png

top-icon.png

540 ms

Accessibility Review

optics.org accessibility score

49

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

Links do not have a discernible name

Best Practices

optics.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Page has valid source maps

SEO Factors

optics.org SEO score

90

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

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Optics.org 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.org main page’s claimed encoding is iso-8859-1. 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.org

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: