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100exhibit.iau.org screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

100exhibit.iau.org

ABOVE AND BEYOND | Travelling Exhibition IAU & ScienceNow

Page Load Speed

8.4 sec in total

First Response

842 ms

Resources Loaded

6.1 sec

Page Rendered

1.5 sec

100exhibit.iau.org screenshot

About Website

Click here to check amazing 100 Exhibit IAU content for United States. Otherwise, check out these important facts you probably never knew about 100exhibit.iau.org

Open-source travelling exhibition celebrating a century of astronomical discoveries. Launched at the International Astronomical Union GA in Vienna 20.08.2018.

Visit 100exhibit.iau.org

Key Findings

We analyzed 100exhibit.iau.org page load time and found that the first response time was 842 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

100exhibit.iau.org performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value1,610 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

100exhibit.iau.org

842 ms

css

47 ms

fdqa2.css

229 ms

fdqa2.css

231 ms

slick.min.css

44 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 83% of them (76 requests) were addressed to the original 100exhibit.iau.org, 5% (5 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain 100exhibit.iau.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.1 kB (1%)

Content Size

14.6 MB

After Optimization

14.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 100exhibit.iau.org main page is 14.6 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. 65% of websites need less resources to load. Images take 14.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 143.5 kB

  • Original 167.0 kB
  • After minification 155.7 kB
  • After compression 23.5 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 143.5 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 14 B

  • Original 14.1 MB
  • After minification 14.1 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. 100 Exhibit IAU images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 984 B

  • Original 229.6 kB
  • After minification 229.6 kB
  • After compression 228.7 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.

CSS Optimization

-1%

Potential reduce by 1.6 kB

  • Original 125.2 kB
  • After minification 125.2 kB
  • After compression 123.6 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. 100exhibit.iau.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 25 (31%)

Requests Now

80

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 100 Exhibit IAU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

100exhibit.iau.org

100exhibit.iau.org

842 ms

css

css

47 ms

fdqa2.css

fdqa2.css

229 ms

fdqa2.css

fdqa2.css

231 ms

slick.min.css

slick.min.css

44 ms

aos.css

aos.css

39 ms

css

css

39 ms

fdqa2.css

fdqa2.css

465 ms

css

css

57 ms

fdqa2.css

fdqa2.css

353 ms

fdqa2.js

fdqa2.js

358 ms

fdqa2.js

fdqa2.js

566 ms

46xyt.css

46xyt.css

497 ms

css

css

58 ms

aos.css

aos.css

20 ms

aba3p.css

aba3p.css

384 ms

page-scroll-to-id.min.js

page-scroll-to-id.min.js

488 ms

slick.min.js

slick.min.js

16 ms

aos.js

aos.js

21 ms

slider.js

slider.js

485 ms

floating-planets.js

floating-planets.js

600 ms

main.js

main.js

601 ms

custom.min.js

custom.min.js

817 ms

common.js

common.js

720 ms

wp_footer.js

wp_footer.js

720 ms

wp-embed.min.js

wp-embed.min.js

721 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

920 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

804 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

911 ms

aos.js

aos.js

14 ms

logo-100-1.svg

logo-100-1.svg

395 ms

loader.gif

loader.gif

582 ms

wariant6b.jpg

wariant6b.jpg

1227 ms

logo1-1.svg

logo1-1.svg

582 ms

logo-100.svg

logo-100.svg

590 ms

IAU.svg

IAU.svg

657 ms

sciencenow.svg

sciencenow.svg

678 ms

IAU100.svg

IAU100.svg

678 ms

slider_mobile-1.jpg

slider_mobile-1.jpg

1481 ms

IAU100_presspack_1920x1080-03.png

IAU100_presspack_1920x1080-03.png

1236 ms

eso.svg

eso.svg

893 ms

esa.svg

esa.svg

895 ms

harvard2.svg

harvard2.svg

906 ms

jaxa.svg

jaxa.svg

1117 ms

jpl2.svg

jpl2.svg

1118 ms

leiden.svg

leiden.svg

1382 ms

nasa.svg

nasa.svg

1352 ms

roskosmos.svg

roskosmos.svg

1356 ms

ras22-150x100.png

ras22-150x100.png

1460 ms

Smithsonian2-150x77.png

Smithsonian2-150x77.png

1462 ms

telescope_hooker.jpg

telescope_hooker.jpg

2017 ms

photo2.jpg

photo2.jpg

2352 ms

photo3.jpg

photo3.jpg

2170 ms

hubble_heic0611b.jpg

hubble_heic0611b.jpg

2349 ms

casa_elements.jpg

casa_elements.jpg

2744 ms

pillars_heic1501a.jpg

pillars_heic1501a.jpg

2367 ms

MeerKAT_Galactic-Centre_Low-Res.jpg

MeerKAT_Galactic-Centre_Low-Res.jpg

2797 ms

img4.jpg

img4.jpg

2467 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_CWsg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_CWsg.ttf

79 ms

wlpvgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXdoqv.ttf

wlpvgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXdoqv.ttf

160 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRf06i_CWsg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRf06i_CWsg.ttf

123 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_B2sg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_B2sg.ttf

76 ms

modules.ttf

modules.ttf

2580 ms

IAU100-1.svg

IAU100-1.svg

2473 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

26 ms

fa-solid-900.woff

fa-solid-900.woff

2578 ms

fa-regular-400.woff

fa-regular-400.woff

2622 ms

aura.svg

aura.svg

2576 ms

Moore-150x69.png

Moore-150x69.png

2601 ms

NOAO.svg

NOAO.svg

2590 ms

NSF_AllBlack_bitmap_Logo-150x150.png

NSF_AllBlack_bitmap_Logo-150x150.png

2600 ms

revolution.extension.slideanims.min.js

revolution.extension.slideanims.min.js

2464 ms

revolution.extension.layeranimation.min.js

revolution.extension.layeranimation.min.js

2467 ms

revolution.extension.kenburn.min.js

revolution.extension.kenburn.min.js

2506 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2867 ms

aui.svg

aui.svg

2539 ms

asu.svg

asu.svg

2572 ms

ligo-150x108.png

ligo-150x108.png

2572 ms

nova.svg

nova.svg

2393 ms

nrao-115x150.png

nrao-115x150.png

2435 ms

ska-150x90.png

ska-150x90.png

2515 ms

IAU-1.svg

IAU-1.svg

2356 ms

sciencenow-1.svg

sciencenow-1.svg

2385 ms

logo.png

logo.png

2290 ms

pluto.png

pluto.png

3016 ms

moon-background.png

moon-background.png

2304 ms

juno.png

juno.png

3127 ms

neptune.png

neptune.png

3219 ms

iss01.png

iss01.png

3049 ms

planet3.png

planet3.png

2954 ms

planet4.png

planet4.png

2881 ms

loader.gif

loader.gif

1321 ms

Accessibility Review

100exhibit.iau.org accessibility score

77

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

High

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

100exhibit.iau.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

100exhibit.iau.org SEO score

91

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

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 100exhibit.iau.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 100exhibit.iau.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

100exhibit.iau.org

Open Graph description is not detected on the main page of 100 Exhibit IAU. 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: