Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

electronicimaging.spiedigitallibrary.org

Journal of Electronic Imaging

Page Load Speed

708 ms in total

First Response

15 ms

Resources Loaded

544 ms

Page Rendered

149 ms

About Website

Visit electronicimaging.spiedigitallibrary.org now to see the best up-to-date Electronic Imaging Spiedigitallibrary content for China and also check out these interesting facts you probably never knew about electronicimaging.spiedigitallibrary.org

The <i>Journal of Electronic Imaging</i> (JEI), copublished bimonthly with the Society for Imaging Science and Technology, publishes peer-reviewed papers that cover research and applications in all ar...

Visit electronicimaging.spiedigitallibrary.org

Key Findings

We analyzed Electronicimaging.spiedigitallibrary.org page load time and found that the first response time was 15 ms and then it took 693 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster. This domain responded with an error, which can significantly jeopardize Electronicimaging.spiedigitallibrary.org rating and web reputation

Performance Metrics

electronicimaging.spiedigitallibrary.org performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.3

39/100

15%

TTI (Time to Interactive)

Value12.4 s

14/100

10%

Network Requests Diagram

electronicimaging.spiedigitallibrary.org

15 ms

journal.aspx

130 ms

1094514084.js

111 ms

19 ms

journal.less

18 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 89% of them (34 requests) were addressed to the original Electronicimaging.spiedigitallibrary.org, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Cdn.optimizely.com. The less responsive or slowest element that took the longest time to load (132 ms) belongs to the original domain Electronicimaging.spiedigitallibrary.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 263.5 kB (47%)

Content Size

559.4 kB

After Optimization

295.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Electronicimaging.spiedigitallibrary.org main page is 559.4 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. 40% of websites need less resources to load. Javascripts take 209.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 72.8 kB

  • Original 89.1 kB
  • After minification 75.3 kB
  • After compression 16.3 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 13.8 kB, which is 15% 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 72.8 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 12.8 kB

  • Original 197.1 kB
  • After minification 184.3 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. Electronic Imaging Spiedigitallibrary images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 127.0 kB

  • Original 209.1 kB
  • After minification 202.6 kB
  • After compression 82.0 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 127.0 kB or 61% of the original size.

CSS Optimization

-79%

Potential reduce by 51.0 kB

  • Original 64.2 kB
  • After minification 64.2 kB
  • After compression 13.2 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. Electronicimaging.spiedigitallibrary.org needs all CSS files to be minified and compressed as it can save up to 51.0 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (44%)

Requests Now

18

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Electronic Imaging Spiedigitallibrary. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

electronicimaging.spiedigitallibrary.org accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

electronicimaging.spiedigitallibrary.org best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

electronicimaging.spiedigitallibrary.org SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Electronicimaging.spiedigitallibrary.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 Electronicimaging.spiedigitallibrary.org 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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Electronic Imaging Spiedigitallibrary. 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: