2.5 sec in total
200 ms
1.3 sec
984 ms
Click here to check amazing Duke Eyecenter content for United States. Otherwise, check out these important facts you probably never knew about dukeeyecenter.duke.edu
Visit dukeeyecenter.duke.eduWe analyzed Dukeeyecenter.duke.edu page load time and found that the first response time was 200 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 40% of websites can load faster.
dukeeyecenter.duke.edu performance score
name
value
score
weighting
Value7.3 s
1/100
10%
Value11.4 s
0/100
25%
Value8.8 s
15/100
10%
Value1,140 ms
22/100
30%
Value0.015
100/100
15%
Value11.6 s
18/100
10%
200 ms
78 ms
121 ms
118 ms
118 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 77% of them (61 requests) were addressed to the original Dukeeyecenter.duke.edu, 5% (4 requests) were made to Alertbar.oit.duke.edu and 5% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (468 ms) belongs to the original domain Dukeeyecenter.duke.edu.
Page size can be reduced by 412.0 kB (24%)
1.7 MB
1.3 MB
In fact, the total size of Dukeeyecenter.duke.edu main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 37.4 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 7.3 kB, which is 16% 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 37.4 kB or 82% of the original size.
Potential reduce by 101.7 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. Duke Eyecenter images are well optimized though.
Potential reduce by 959 B
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.
Potential reduce by 271.8 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. Dukeeyecenter.duke.edu needs all CSS files to be minified and compressed as it can save up to 271.8 kB or 79% of the original size.
Number of requests can be reduced by 51 (71%)
72
21
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duke Eyecenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 34 to 1 for CSS and as a result speed up the page load time.
dukeeyecenter.duke.edu
200 ms
google_tag.script.js
78 ms
ajax-progress.module.css
121 ms
align.module.css
118 ms
autocomplete-loading.module.css
118 ms
fieldgroup.module.css
117 ms
container-inline.module.css
117 ms
clearfix.module.css
118 ms
details.module.css
132 ms
hidden.module.css
133 ms
item-list.module.css
134 ms
js.module.css
131 ms
nowrap.module.css
133 ms
position-container.module.css
134 ms
progress.module.css
164 ms
reset-appearance.module.css
161 ms
resize.module.css
160 ms
sticky-header.module.css
162 ms
system-status-counter.css
163 ms
system-status-report-counters.css
164 ms
system-status-report-general-info.css
197 ms
tabledrag.module.css
196 ms
tablesort.module.css
197 ms
tree-child.module.css
196 ms
views.module.css
196 ms
filter.caption.css
188 ms
filter.caption.css
228 ms
addtoany.css
227 ms
paragraphs.unpublished.css
227 ms
node.css
234 ms
bootstrap.min.css
93 ms
all.css
215 ms
messages-light.css
226 ms
style.css
310 ms
alert.css
128 ms
alert.html
133 ms
jquery.min.js
272 ms
drupalSettingsLoader.js
255 ms
drupal.js
254 ms
drupal.init.js
254 ms
page.js
87 ms
bootstrap.bundle.min.js
87 ms
addtoany.js
260 ms
popper.min.js
223 ms
bootstrap.min.js
201 ms
global.js
177 ms
css2
89 ms
bg-alert-2.png
237 ms
duke-eye-center-logo-white.svg
230 ms
btn-alert_orange.png
240 ms
pattern-dark.png
224 ms
Hudson%20photo1500.jpg
380 ms
pattern.png
223 ms
education-200px.png
258 ms
research-200px.png
245 ms
patient_care-blue_-200px.png
244 ms
giving-200px.png
261 ms
hudson400.png
465 ms
VISION%202022%20cover300.png
468 ms
_D%26I%20website%20header.png
389 ms
image_3857472.jpeg
379 ms
image_8904562.jpg
380 ms
buckley_busines_smaller.jpg
463 ms
marker-icon.svg
385 ms
clock-icon.svg
385 ms
duke-eye-center-logo-blue.svg
463 ms
fb-icon.svg
458 ms
twitter-icon.svg
461 ms
instagram-icon.svg
468 ms
linkedin-icon.svg
466 ms
gtm.js
233 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf
106 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4n.ttf
214 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf
220 ms
fa-solid-900.woff
214 ms
fa-regular-400.woff
299 ms
memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkaVc.ttf
219 ms
eso.e18d3993.js
67 ms
sm.23.html
69 ms
dukeeyecenter.duke.edu accessibility score
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
ARIA IDs are not unique
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
Links do not have a discernible name
dukeeyecenter.duke.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
dukeeyecenter.duke.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dukeeyecenter.duke.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Dukeeyecenter.duke.edu 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.
dukeeyecenter.duke.edu
Open Graph description is not detected on the main page of Duke Eyecenter. 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: