2.9 sec in total
231 ms
2.4 sec
320 ms
Visit quosa.com now to see the best up-to-date Quosa content and also check out these interesting facts you probably never knew about quosa.com
QUOSA an end-to-end literature management tool for life science professionals with a centralized repository of scientific literature.
Visit quosa.comWe analyzed Quosa.com page load time and found that the first response time was 231 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
quosa.com performance score
name
value
score
weighting
Value0.7 s
100/100
10%
Value6.5 s
9/100
25%
Value6.7 s
35/100
10%
Value9,820 ms
0/100
30%
Value0.147
77/100
15%
Value13.8 s
10/100
10%
231 ms
53 ms
544 ms
90 ms
69 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Quosa.com, 35% (26 requests) were made to Cdn.elsevier.io and 26% (19 requests) were made to Elsevier.com. The less responsive or slowest element that took the longest time to load (790 ms) relates to the external source Checkout.elsevier.com.
Page size can be reduced by 575.5 kB (50%)
1.2 MB
574.8 kB
In fact, the total size of Quosa.com main page is 1.2 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 767.2 kB which makes up the majority of the site volume.
Potential reduce by 30.5 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 7.6 kB, which is 19% 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 30.5 kB or 75% of the original size.
Potential reduce by 3.7 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. Quosa images are well optimized though.
Potential reduce by 508.8 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 508.8 kB or 66% of the original size.
Potential reduce by 32.4 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. Quosa.com needs all CSS files to be minified and compressed as it can save up to 32.4 kB or 78% of the original size.
Number of requests can be reduced by 43 (72%)
60
17
The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Quosa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
quosa.com
231 ms
quosa-scientific-literature
53 ms
269842467.js
544 ms
mercutio.css
90 ms
www.elsevier.com
69 ms
main_css.css
143 ms
mercutio.js
89 ms
twittertypeaheadjquerymin.js
105 ms
global.js
103 ms
rURL-set-cookie.js
144 ms
cookie_get.js
144 ms
satelliteLib-203157332f7df01b28142e8c867d6813bc4995aa.js
181 ms
cart_widget.css
790 ms
cart_widget.js
650 ms
elsevier-matrix-global_1.0.1.js
102 ms
history.js
141 ms
gcse-tagmanager.js
178 ms
gcse-new.js
148 ms
survey.js
179 ms
geo2.js
207 ms
event
96 ms
gtm.js
66 ms
satellite-54b996243535640015120000.js
130 ms
analytics.js
28 ms
rd
11 ms
id
260 ms
collect
32 ms
event
13 ms
wordmark-elsevier.svg
14 ms
Download_on_the_App_Store_Badge_US-UK_135x40.svg
114 ms
ipad.png
111 ms
newsletter.png
113 ms
quosa-logo.png
113 ms
icon-menu-hamburger.svg
12 ms
icon-shopping-cart.svg
115 ms
icon-magnify-glass.svg
111 ms
icon-social-facebook.svg
116 ms
icon-social-linkedin.svg
130 ms
icon-social-twitter.svg
131 ms
icon-social-googleplus-2.svg
129 ms
logo-relxgroup.svg
132 ms
nexussanswebpro.woff
121 ms
nexussanswebpro-bold.woff
121 ms
index.html
358 ms
ss-gizmo.woff
136 ms
WDSy9G5kYXAAH0yK4AAAA
46 ms
quosa_hero_banner1.jpg
291 ms
illustration_WOR_full-zoom1.jpg
204 ms
jquery-ui.js
102 ms
__geo
126 ms
cart
426 ms
nexusserifwebpro.woff
90 ms
nexusserifwebpro-bold.woff
120 ms
nexussanswebpro-italic.woff
87 ms
nexussanswebpro-bolditalic.woff
118 ms
linkid.js
39 ms
modernizr.js
41 ms
collect
40 ms
collect
187 ms
s-code-contents-c4bb5fab90528289cad9f273eeea71005167b85b.js
95 ms
foundation.js
85 ms
s82196389611344
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8 ms
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8 ms
vjs.woff
50 ms
foundation.offcanvas.js
12 ms
NProgress.js
5 ms
spine.js
5 ms
kubrickology.js
15 ms
lightbox.js
5 ms
conversion_async.js
27 ms
39 ms
49 ms
handshake.js
128 ms
quosa.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
[role]s are not contained by their required parent element
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
quosa.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
Page has valid source maps
quosa.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
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Quosa.com 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 Quosa.com 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.
quosa.com
Open Graph description is not detected on the main page of Quosa. 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: