4.2 sec in total
251 ms
3.7 sec
228 ms
Visit ophsource.org now to see the best up-to-date Ophsource content and also check out these interesting facts you probably never knew about ophsource.org
Browse through a wide range of high-quality academic journals offered by Elsevier, including open access options, to enrich your research journey.
Visit ophsource.orgWe analyzed Ophsource.org page load time and found that the first response time was 251 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
ophsource.org performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value4.8 s
30/100
25%
Value10.0 s
9/100
10%
Value270 ms
82/100
30%
Value0.025
100/100
15%
Value7.7 s
45/100
10%
251 ms
523 ms
216 ms
145 ms
141 ms
Our browser made a total of 91 requests to load all elements on the main page. We found that 54% of them (49 requests) were addressed to the original Ophsource.org, 9% (8 requests) were made to Covers.elsevier.com and 3% (3 requests) were made to Securepubads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Ophsource.org.
Page size can be reduced by 806.6 kB (58%)
1.4 MB
592.8 kB
In fact, the total size of Ophsource.org main page is 1.4 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. 45% of websites need less resources to load. Javascripts take 985.7 kB which makes up the majority of the site volume.
Potential reduce by 149.8 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 34.1 kB, which is 18% 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 149.8 kB or 78% of the original size.
Potential reduce by 3.5 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. Ophsource images are well optimized though.
Potential reduce by 647.2 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 647.2 kB or 66% of the original size.
Potential reduce by 6.0 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. Ophsource.org needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 81% of the original size.
Number of requests can be reduced by 37 (48%)
77
40
The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ophsource. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
ophsource.org
251 ms
getSharedSiteSession
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getSharedSiteSession
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consumeSharedSessionAction
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consumeSharedSessionAction
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ophsource.org
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embed.js
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product.css
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head_1_53_158_167_25238.css
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ha.css
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altmetric_badges-98e4a0c5363439e08b1f025f231428bc.js
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addthis_widget.js
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s-code-contents-87ff59abfc9acf73289bd658598e0b01359c7df7.js
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sh.07f0d9bf220d07a763adad1e.html
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six.css
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1 ms
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18 ms
ophsource.org 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.
ophsource.org 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
ophsource.org 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 Ophsource.org 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 Ophsource.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.
ophsource.org
Open Graph description is not detected on the main page of Ophsource. 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: