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The Tesla Science Foundation is a non-profit organization formed to promote the heritage of Nikola Tesla through raising awareness of his achievements and contribution in our daily lives, including hi...Visit teslasciencefoundation.org
We analyzed Teslasciencefoundation.org page load time and found that the first response time was 2.7 sec and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
teslasciencefoundation.org performance score
Our browser made a total of 221 requests to load all elements on the main page. We found that 75% of them (166 requests) were addressed to the original Teslasciencefoundation.org, 7% (16 requests) were made to Fonts.gstatic.com and 5% (12 requests) were made to Scontent.cdninstagram.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Teslasciencefoundation.org.
Page size can be reduced by 2.1 MB (24%)
In fact, the total size of Teslasciencefoundation.org main page is 8.8 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. Only a small number of websites need less resources to load. Images take 6.2 MB which makes up the majority of the site volume.
Potential reduce by 138.1 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 138.1 kB or 80% of the original size.
Potential reduce by 75.8 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. Teslasciencefoundation images are well optimized though.
Potential reduce by 869.3 kB
Potential reduce by 1.0 MB
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. Teslasciencefoundation.org needs all CSS files to be minified and compressed as it can save up to 1.0 MB or 82% of the original size.
Number of requests can be reduced by 108 (57%)
teslasciencefoundation.org accessibility score
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.
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
teslasciencefoundation.org best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Browser errors were logged to the console
teslasciencefoundation.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have [alt] attributes
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/).
Document uses legible font sizes
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teslasciencefoundation.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 Teslasciencefoundation.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.
Open Graph description is not detected on the main page of Teslasciencefoundation. 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: