3.5 sec in total
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3 sec
241 ms
Click here to check amazing Prevent Blindness Donordrive content for United States. Otherwise, check out these important facts you probably never knew about preventblindness.donordrive.com
Visit preventblindness.donordrive.comWe analyzed Preventblindness.donordrive.com page load time and found that the first response time was 259 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
preventblindness.donordrive.com performance score
name
value
score
weighting
Value3.3 s
40/100
10%
Value3.8 s
54/100
25%
Value4.7 s
69/100
10%
Value850 ms
34/100
30%
Value0.149
76/100
15%
Value8.0 s
42/100
10%
259 ms
1151 ms
1077 ms
1100 ms
36 ms
Our browser made a total of 114 requests to load all elements on the main page. We found that 5% of them (6 requests) were addressed to the original Preventblindness.donordrive.com, 22% (25 requests) were made to Static.xx.fbcdn.net and 15% (17 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Static.donordrive.com.
Page size can be reduced by 340.1 kB (27%)
1.3 MB
918.4 kB
In fact, the total size of Preventblindness.donordrive.com 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. 70% of websites need less resources to load. Images take 804.4 kB which makes up the majority of the site volume.
Potential reduce by 23.9 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 23.9 kB or 73% of the original size.
Potential reduce by 16.6 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. Prevent Blindness Donordrive images are well optimized though.
Potential reduce by 100.5 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 100.5 kB or 55% of the original size.
Potential reduce by 199.1 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. Preventblindness.donordrive.com needs all CSS files to be minified and compressed as it can save up to 199.1 kB or 83% of the original size.
Number of requests can be reduced by 44 (41%)
108
64
The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prevent Blindness Donordrive. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.
preventblindness.donordrive.com
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preventblindness.donordrive.com 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.
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
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
Links do not have a discernible name
preventblindness.donordrive.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
preventblindness.donordrive.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Preventblindness.donordrive.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 Preventblindness.donordrive.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.
preventblindness.donordrive.com
Open Graph description is not detected on the main page of Prevent Blindness Donordrive. 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: