Tools & Wizards About Us
davincisciencecenter.org screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

davincisciencecenter.org

Home - Da Vinci Science Center

Page Load Speed

33.9 sec in total

First Response

74 ms

Resources Loaded

1.6 sec

Page Rendered

32.2 sec

davincisciencecenter.org screenshot

About Website

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.org

Key Findings

We analyzed Davincisciencecenter.org page load time and found that the first response time was 74 ms and then it took 33.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

davincisciencecenter.org performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value950 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

davincisciencecenter.org

74 ms

www.davincisciencecenter.org

225 ms

jquery-ui.css

70 ms

tooltipster.bundle.min.css

77 ms

tooltipster-sideTip-light.min.css

76 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 75% of them (79 requests) were addressed to the original Davincisciencecenter.org, 22% (23 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (292 ms) belongs to the original domain Davincisciencecenter.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 529.2 kB (12%)

Content Size

4.5 MB

After Optimization

3.9 MB

  • HTML
  • Images

In fact, the total size of Davincisciencecenter.org main page is 4.5 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 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 496.6 kB

  • Original 659.2 kB
  • After minification 655.5 kB
  • After compression 162.6 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 496.6 kB or 75% of the original size.

Image Optimization

-1%

Potential reduce by 32.6 kB

  • Original 3.8 MB
  • After minification 3.8 MB

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.

Requests Breakdown

Number of requests can be reduced by 32 (40%)

Requests Now

80

After Optimization

48

  • Images
  • JavaScript
  • CSS

The browser has sent 80 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 20 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

davincisciencecenter.org

davincisciencecenter.org

74 ms

www.davincisciencecenter.org

www.davincisciencecenter.org

225 ms

jquery-ui.css

jquery-ui.css

70 ms

tooltipster.bundle.min.css

tooltipster.bundle.min.css

77 ms

tooltipster-sideTip-light.min.css

tooltipster-sideTip-light.min.css

76 ms

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jquery.material.form.css

77 ms

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intlTelInput.min.css

72 ms

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style.min.css

98 ms

css2

css2

36 ms

faqs.css

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95 ms

tabs.css

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95 ms

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94 ms

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150 ms

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99 ms

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101 ms

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124 ms

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100 ms

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106 ms

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gsap.min.js

124 ms

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ScrollTrigger.min.js

145 ms

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js

71 ms

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57 ms

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117 ms

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117 ms

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117 ms

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118 ms

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118 ms

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292 ms

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291 ms

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238 ms

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123 ms

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124 ms

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176 ms

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177 ms

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177 ms

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179 ms

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181 ms

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179 ms

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181 ms

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Accessibility Review

davincisciencecenter.org accessibility score

91

Accessibility Issues

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

davincisciencecenter.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

davincisciencecenter.org SEO score

79

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    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.

Social Sharing Optimization

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: