Tools & Wizards About Us
eyesearch.ucl.ac.uk screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

eyesearch.ucl.ac.uk

Eye-Search - UCL's free therapy for visual search problems

Page Load Speed

2.4 sec in total

First Response

633 ms

Resources Loaded

1.7 sec

Page Rendered

75 ms

eyesearch.ucl.ac.uk screenshot

About Website

Click here to check amazing Eye Search UCL content for United Kingdom. Otherwise, check out these important facts you probably never knew about eyesearch.ucl.ac.uk

Eye-Search is a free online therapy developed by UCL (University College London) and funded by The Stroke Association for patients with visual search problems caused by brain injury. The two main synd...

Visit eyesearch.ucl.ac.uk

Key Findings

We analyzed Eyesearch.ucl.ac.uk page load time and found that the first response time was 633 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

eyesearch.ucl.ac.uk performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

68/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

eyesearch.ucl.ac.uk

633 ms

main.css

233 ms

home.css

159 ms

SpryMenuBar.js

320 ms

spry_main_menu.css

240 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 75% of them (12 requests) were addressed to the original Eyesearch.ucl.ac.uk, 13% (2 requests) were made to Google-analytics.com and 13% (2 requests) were made to Readright.ucl.ac.uk. The less responsive or slowest element that took the longest time to load (633 ms) belongs to the original domain Eyesearch.ucl.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.2 kB (22%)

Content Size

270.4 kB

After Optimization

211.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eyesearch.ucl.ac.uk main page is 270.4 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. Only 10% of websites need less resources to load. Images take 211.3 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 5.7 kB

  • Original 8.0 kB
  • After minification 5.8 kB
  • After compression 2.2 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 2.1 kB, which is 27% 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 5.7 kB or 72% of the original size.

Image Optimization

-12%

Potential reduce by 24.9 kB

  • Original 211.3 kB
  • After minification 186.4 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. Obviously, Eye Search UCL needs image optimization as it can save up to 24.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-45%

Potential reduce by 17.4 kB

  • Original 38.4 kB
  • After minification 31.6 kB
  • After compression 21.0 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 17.4 kB or 45% of the original size.

CSS Optimization

-88%

Potential reduce by 11.1 kB

  • Original 12.6 kB
  • After minification 4.3 kB
  • After compression 1.6 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. Eyesearch.ucl.ac.uk needs all CSS files to be minified and compressed as it can save up to 11.1 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

13

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eye Search UCL. According to our analytics all requests are already optimized.

Network Requests Diagram

eyesearch.ucl.ac.uk

eyesearch.ucl.ac.uk

633 ms

main.css

main.css

233 ms

home.css

home.css

159 ms

SpryMenuBar.js

SpryMenuBar.js

320 ms

spry_main_menu.css

spry_main_menu.css

240 ms

ga.js

ga.js

29 ms

nih.png

nih.png

411 ms

ucl0081.gif

ucl0081.gif

81 ms

home_page_06.png

home_page_06.png

616 ms

star_red_s.png

star_red_s.png

156 ms

icon_readright_eye_small.jpg

icon_readright_eye_small.jpg

233 ms

tsa_logo_new.jpg

tsa_logo_new.jpg

241 ms

SpryMenuBarDownHover.gif

SpryMenuBarDownHover.gif

161 ms

SpryMenuBarRightHover.gif

SpryMenuBarRightHover.gif

213 ms

__utm.gif

__utm.gif

12 ms

nih.png

nih.png

404 ms

Accessibility Review

eyesearch.ucl.ac.uk accessibility score

78

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

Best Practices

eyesearch.ucl.ac.uk best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

eyesearch.ucl.ac.uk SEO score

75

Search Engine Optimization Advices

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 Eyesearch.ucl.ac.uk 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 Eyesearch.ucl.ac.uk 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

eyesearch.ucl.ac.uk

Open Graph description is not detected on the main page of Eye Search UCL. 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: