2.7 sec in total
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Click here to check amazing Black Inventor content for United States. Otherwise, check out these important facts you probably never knew about blackinventor.com
WELCOME TO THE BLACK INVENTOR ONLINE MUSEUM The #1 resource on the web focusing on the ingenuity and accomplishments of the top Black inventors over the last 300 years. Their contributions are chronic...
Visit blackinventor.comWe analyzed Blackinventor.com page load time and found that the first response time was 30 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
blackinventor.com performance score
name
value
score
weighting
Value2.1 s
83/100
10%
Value2.5 s
90/100
25%
Value3.7 s
85/100
10%
Value180 ms
91/100
30%
Value0.022
100/100
15%
Value5.9 s
66/100
10%
30 ms
179 ms
44 ms
113 ms
120 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 22% of them (13 requests) were addressed to the original Blackinventor.com, 47% (28 requests) were made to Fonts.gstatic.com and 25% (15 requests) were made to Ezojs.com. The less responsive or slowest element that took the longest time to load (342 ms) relates to the external source Fonts.gstatic.com.
Page size can be reduced by 300.3 kB (51%)
588.6 kB
288.3 kB
In fact, the total size of Blackinventor.com main page is 588.6 kB. 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. HTML takes 349.9 kB which makes up the majority of the site volume.
Potential reduce by 299.0 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 299.0 kB or 85% of the original size.
Potential reduce by 1.2 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. This website has mostly compressed JavaScripts.
Potential reduce by 99 B
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. Blackinventor.com has all CSS files already compressed.
Number of requests can be reduced by 23 (82%)
28
5
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Inventor. 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.
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blackinventor.com 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 input fields do not have accessible names
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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
blackinventor.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
blackinventor.com 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackinventor.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 Blackinventor.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.
blackinventor.com
Open Graph data is detected on the main page of Black Inventor. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: