7.9 sec in total
151 ms
6.9 sec
797 ms
Visit davincisciencecenter.org now to see the best up-to-date Da Vinci Science Center content for Turkey and also check out these interesting facts you probably never knew about davincisciencecenter.org
The Da Vinci Science Center is a national award-winning nonprofit organization that has brought science to lives to science since 1992.
Visit davincisciencecenter.orgWe analyzed Davincisciencecenter.org page load time and found that the first response time was 151 ms and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
davincisciencecenter.org performance score
name
value
score
weighting
Value6.8 s
1/100
10%
Value37.2 s
0/100
25%
Value17.5 s
0/100
10%
Value1,120 ms
23/100
30%
Value0.169
70/100
15%
Value28.4 s
0/100
10%
151 ms
1863 ms
306 ms
303 ms
720 ms
Our browser made a total of 157 requests to load all elements on the main page. We found that 75% of them (117 requests) were addressed to the original Davincisciencecenter.org, 4% (6 requests) were made to Maps.googleapis.com and 4% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Davincisciencecenter.org.
Page size can be reduced by 614.6 kB (16%)
3.8 MB
3.2 MB
In fact, the total size of Davincisciencecenter.org main page is 3.8 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.8 MB which makes up the majority of the site volume.
Potential reduce by 200.7 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 200.7 kB or 85% of the original size.
Potential reduce by 50.6 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. Da Vinci Science Center images are well optimized though.
Potential reduce by 46.8 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 46.8 kB or 16% of the original size.
Potential reduce by 316.5 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. Davincisciencecenter.org needs all CSS files to be minified and compressed as it can save up to 316.5 kB or 66% of the original size.
Number of requests can be reduced by 60 (41%)
145
85
The browser has sent 145 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Da Vinci Science Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.
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davincisciencecenter.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
Image elements do not have [alt] attributes
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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.
davincisciencecenter.org 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
Page has valid source maps
davincisciencecenter.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 doesn't use 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 Davincisciencecenter.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 Davincisciencecenter.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.
davincisciencecenter.org
Open Graph data is detected on the main page of Da Vinci Science Center. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: