1.8 sec in total
65 ms
1.6 sec
168 ms
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Visit he-cda.wiley.comWe analyzed He-cda.wiley.com page load time and found that the first response time was 65 ms and then it took 1.7 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.
he-cda.wiley.com performance score
name
value
score
weighting
Value4.8 s
12/100
10%
Value20.1 s
0/100
25%
Value22.9 s
0/100
10%
Value40,790 ms
0/100
30%
Value0
100/100
15%
Value53.4 s
0/100
10%
65 ms
25 ms
62 ms
33 ms
23 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original He-cda.wiley.com, 51% (28 requests) were made to Media.wiley.com and 9% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (875 ms) relates to the external source S1342121626.t.eloqua.com.
Page size can be reduced by 445.7 kB (42%)
1.1 MB
607.2 kB
In fact, the total size of He-cda.wiley.com main page is 1.1 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. 55% of websites need less resources to load. Javascripts take 551.7 kB which makes up the majority of the site volume.
Potential reduce by 26.6 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. This page needs HTML code to be minified as it can gain 6.8 kB, which is 20% 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 26.6 kB or 78% of the original size.
Potential reduce by 4.1 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. He Cda Wiley images are well optimized though.
Potential reduce by 356.1 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 356.1 kB or 65% of the original size.
Potential reduce by 59.0 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. He-cda.wiley.com needs all CSS files to be minified and compressed as it can save up to 59.0 kB or 79% of the original size.
Number of requests can be reduced by 22 (50%)
44
22
The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of He Cda Wiley. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
he-cda.wiley.com
65 ms
25 ms
62 ms
style.css
33 ms
css
23 ms
jquery-1.4.2.js
36 ms
jquery.cycle.all.js
46 ms
utility.js
22 ms
form_validation.js
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150044.css
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satelliteLib-58e9ce70e728e2393cce3a9c7d93c797dd78471c.js
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joinBoxEloqua.js
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wiley-wordmark.png
5 ms
logo.gif
5 ms
W_1.png
11 ms
W_2.png
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W_3.png
10 ms
icon_nobel.gif
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Wiley_Wordmark_whiteNEW.gif
6 ms
brand-dummies.gif
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brand-wol.gif
9 ms
brand-wileyplus.gif
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brand-wrox.gif
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WEL_Logo.gif
9 ms
brand-customselect.gif
11 ms
career-options.gif
25 ms
print.css
3 ms
1764680173.js
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event
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sprite-map-wiley.gif
9 ms
generic-arrow.png
13 ms
banner-right-arrow.gif
14 ms
sign-up-form-arrow-transp.png
10 ms
wiley-footer-dots-transp.png
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wiley-footer-semi-circle-transp.png
9 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
25 ms
nj47mAZe0mYUIySgfn0wpQ.ttf
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zJY4gsxBiSo5L7tNutxFNg.ttf
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conversion.js
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s-code-contents-6695fcbb20096b227642a7c567c1d284ad72ad04.js
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ga.js
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elqCfg.min.js
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he-cda.wiley.com 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-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements 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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
he-cda.wiley.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
he-cda.wiley.com 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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise He-cda.wiley.com 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 He-cda.wiley.com 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.
he-cda.wiley.com
Open Graph description is not detected on the main page of He Cda Wiley. 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: