5.9 sec in total
201 ms
4.2 sec
1.5 sec
Welcome to iucnredlist.org homepage info - get ready to check IUCN Red List best content for United States right away, or after learning these important things about iucnredlist.org
Visit iucnredlist.orgWe analyzed Iucnredlist.org page load time and found that the first response time was 201 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
iucnredlist.org performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value20.1 s
0/100
25%
Value7.2 s
30/100
10%
Value710 ms
42/100
30%
Value0.819
4/100
15%
Value17.2 s
4/100
10%
201 ms
304 ms
399 ms
41 ms
555 ms
Our browser made a total of 103 requests to load all elements on the main page. We found that 28% of them (29 requests) were addressed to the original Iucnredlist.org, 20% (21 requests) were made to Jr.iucnredlist.org and 15% (15 requests) were made to I.iucnredlist.org. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Wiki_docs.s3.amazonaws.com.
Page size can be reduced by 646.0 kB (49%)
1.3 MB
672.3 kB
In fact, the total size of Iucnredlist.org main page is 1.3 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. 65% of websites need less resources to load. Javascripts take 574.5 kB which makes up the majority of the site volume.
Potential reduce by 45.3 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 45.3 kB or 73% of the original size.
Potential reduce by 99.0 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. Obviously, IUCN Red List needs image optimization as it can save up to 99.0 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 385.0 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 385.0 kB or 67% of the original size.
Potential reduce by 116.6 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. Iucnredlist.org needs all CSS files to be minified and compressed as it can save up to 116.6 kB or 83% of the original size.
Number of requests can be reduced by 53 (52%)
101
48
The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IUCN Red List. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
iucnredlist.org
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iucnredlist.org accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
iucnredlist.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
iucnredlist.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Iucnredlist.org 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 Iucnredlist.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.
iucnredlist.org
Open Graph description is not detected on the main page of IUCN Red List. 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: