1.6 sec in total
217 ms
1.2 sec
220 ms
Click here to check amazing Biodiversity Library content for Mexico. Otherwise, check out these important facts you probably never knew about biodiversitylibrary.org
The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community.
Visit biodiversitylibrary.orgWe analyzed Biodiversitylibrary.org page load time and found that the first response time was 217 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
biodiversitylibrary.org performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value8.5 s
1/100
25%
Value3.6 s
86/100
10%
Value460 ms
61/100
30%
Value0
100/100
15%
Value8.7 s
36/100
10%
217 ms
124 ms
97 ms
10 ms
34 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 77% of them (41 requests) were addressed to the original Biodiversitylibrary.org, 6% (3 requests) were made to S7.addthis.com and 4% (2 requests) were made to D1bxh8uas1mnw7.cloudfront.net. The less responsive or slowest element that took the longest time to load (721 ms) belongs to the original domain Biodiversitylibrary.org.
Page size can be reduced by 713.0 kB (49%)
1.5 MB
755.6 kB
In fact, the total size of Biodiversitylibrary.org main page is 1.5 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 764.8 kB which makes up the majority of the site volume.
Potential reduce by 112.4 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. 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 112.4 kB or 75% of the original size.
Potential reduce by 23.3 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. Biodiversity Library images are well optimized though.
Potential reduce by 518.3 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 518.3 kB or 68% 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. Biodiversitylibrary.org needs all CSS files to be minified and compressed as it can save up to 59.0 kB or 86% of the original size.
Number of requests can be reduced by 19 (37%)
51
32
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biodiversity Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
biodiversitylibrary.org
217 ms
style.css
124 ms
modernizr-1.6.min.js
97 ms
addthis_widget.js
10 ms
embed.js
34 ms
jMyCarousel.css
73 ms
jquery.min.js
33 ms
jMyCarousel.js
165 ms
jquery.text-overflow.min.js
164 ms
plugins.js
167 ms
script.js
166 ms
webtrends.js
167 ms
altmetric_badges-eaa73f9650bcf2eedf30436231982eb6.js
33 ms
0.png
128 ms
ga.js
65 ms
Collection_Image_Womens_History.jpg
517 ms
bhl-logo-main.png
114 ms
06_home_pic_img.png
690 ms
support.png
112 ms
eol_11px.png
112 ms
home_search_shadows.png
154 ms
bg_searchhome_button.png
152 ms
title_icon-home.png
154 ms
author_icon-home.png
152 ms
date_icon-home.png
154 ms
collection_icon-home.png
157 ms
contributor_icon-home.png
157 ms
471060.jpg
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45672535.jpg
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35245725.jpg
650 ms
envelope_icon.png
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rss.png
648 ms
wtid.js
34 ms
300lo.json
91 ms
right_bhl.png
554 ms
left_bhl.png
569 ms
image_browser_message.png
626 ms
icon_chrome.png
586 ms
icon_firefox.png
594 ms
icon_safari.png
606 ms
icon_iexplorer.png
621 ms
__utm.gif
49 ms
sh.7c7179124ea24ac6ba46caac.html
44 ms
dcs.gif
27 ms
layers.3643cb2e25fb91c29386.js
5 ms
bg_browser_close.png
48 ms
biodiversitylibrary.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
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
biodiversitylibrary.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
biodiversitylibrary.org SEO score
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 Biodiversitylibrary.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 Biodiversitylibrary.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.
biodiversitylibrary.org
Open Graph description is not detected on the main page of Biodiversity Library. 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: