217.6 sec in total
266 ms
208.9 sec
8.4 sec
Click here to check amazing Biology Online content for United States. Otherwise, check out these important facts you probably never knew about biology-online.org
Biology Online is the world’s most comprehensive database of Biology terms and topics. Since 2001 it has been the resource of choice for professors, students, and professionals needing answers to Biol...
Visit biology-online.orgWe analyzed Biology-online.org page load time and found that the first response time was 266 ms and then it took 217.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 92 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
biology-online.org performance score
name
value
score
weighting
Value2.4 s
72/100
10%
Value4.8 s
31/100
25%
Value8.5 s
17/100
10%
Value3,690 ms
1/100
30%
Value0.058
98/100
15%
Value25.5 s
0/100
10%
266 ms
412 ms
60 ms
609 ms
607 ms
Our browser made a total of 477 requests to load all elements on the main page. We found that 9% of them (44 requests) were addressed to the original Biology-online.org, 6% (30 requests) were made to Ce.lijit.com and 6% (28 requests) were made to Ib.adnxs.com. The less responsive or slowest element that took the longest time to load (55.9 sec) relates to the external source S0.2mdn.net.
Page size can be reduced by 1.8 MB (56%)
3.2 MB
1.4 MB
In fact, the total size of Biology-online.org main page is 3.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 2.4 MB which makes up the majority of the site volume.
Potential reduce by 67.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 67.1 kB or 73% of the original size.
Potential reduce by 34.7 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. Biology Online images are well optimized though.
Potential reduce by 1.5 MB
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 1.5 MB or 63% of the original size.
Potential reduce by 194.1 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. Biology-online.org needs all CSS files to be minified and compressed as it can save up to 194.1 kB or 75% of the original size.
Number of requests can be reduced by 264 (77%)
345
81
The browser has sent 345 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biology Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 104 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.
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biology-online.org accessibility score
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
Heading elements are not in a sequentially-descending order
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
biology-online.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
biology-online.org SEO score
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 Biology-online.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 Biology-online.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.
biology-online.org
Open Graph description is not detected on the main page of Biology Online. 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: