Tools & Wizards About Us
astro.indiana.edu screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

astro.indiana.edu

Department of Astronomy: Indiana University Bloomington

Page Load Speed

8.3 sec in total

First Response

3.4 sec

Resources Loaded

4.5 sec

Page Rendered

362 ms

astro.indiana.edu screenshot

About Website

Welcome to astro.indiana.edu homepage info - get ready to check Astro Indiana best content for United States right away, or after learning these important things about astro.indiana.edu

Astronomy Homepage

Visit astro.indiana.edu

Key Findings

We analyzed Astro.indiana.edu page load time and found that the first response time was 3.4 sec and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

astro.indiana.edu performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value410 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value12.2 s

16/100

10%

Network Requests Diagram

astro.indiana.edu

3449 ms

style.css

90 ms

icon-font.css

149 ms

global.css

175 ms

brand.css

203 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 25% of them (14 requests) were addressed to the original Astro.indiana.edu, 18% (10 requests) were made to Coasunit.sitehost.iu.edu and 13% (7 requests) were made to Unitbase.college.indiana.edu. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Astro.indiana.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 172.4 kB (7%)

Content Size

2.6 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Astro.indiana.edu main page is 2.6 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. 50% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 77.0 kB

  • Original 91.6 kB
  • After minification 90.0 kB
  • After compression 14.6 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 77.0 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 74.8 kB

  • Original 2.2 MB
  • After minification 2.1 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. Astro Indiana images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 15.2 kB

  • Original 206.1 kB
  • After minification 206.0 kB
  • After compression 190.9 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

-9%

Potential reduce by 5.4 kB

  • Original 57.3 kB
  • After minification 57.3 kB
  • After compression 51.8 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. Astro.indiana.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (51%)

Requests Now

41

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astro Indiana. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

astro.indiana.edu

astro.indiana.edu

3449 ms

style.css

style.css

90 ms

icon-font.css

icon-font.css

149 ms

global.css

global.css

175 ms

brand.css

brand.css

203 ms

search.css

search.css

223 ms

unit.css

unit.css

219 ms

site.css

site.css

27 ms

unit-siteimprove.css

unit-siteimprove.css

130 ms

modernizr.min.js

modernizr.min.js

126 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

11 ms

global.js

global.js

229 ms

search.js

search.js

149 ms

site-1.2.js

site-1.2.js

231 ms

search.js

search.js

51 ms

unit-siteimprove.js

unit-siteimprove.js

154 ms

icon-font.css

icon-font.css

36 ms

global.css

global.css

37 ms

brand.css

brand.css

53 ms

unit.css

unit.css

27 ms

search.css

search.css

49 ms

global.js

global.js

168 ms

site-1.2.js

site-1.2.js

167 ms

gtm.js

gtm.js

337 ms

trident-large.png

trident-large.png

121 ms

iotw2141a_cropped2wcredit.jpg

iotw2141a_cropped2wcredit.jpg

704 ms

search.png

search.png

322 ms

search.png

search.png

121 ms

trident-small.png

trident-small.png

391 ms

stella-evolution-profile.jpg

stella-evolution-profile.jpg

390 ms

noao-pmhydrafp-profile.jpg

noao-pmhydrafp-profile.jpg

573 ms

iotw2002a_highlight.jpg

iotw2002a_highlight.jpg

572 ms

m87blackhole_highlight.jpg

m87blackhole_highlight.jpg

473 ms

noao-odi-6000-highlight.jpg

noao-odi-6000-highlight.jpg

572 ms

neid20200107-16-highlight.jpg

neid20200107-16-highlight.jpg

655 ms

coolstars-logo-profile.jpg

coolstars-logo-profile.jpg

598 ms

eres-cornell-profile.jpg

eres-cornell-profile.jpg

655 ms

brady-kristin-profile-2.jpg

brady-kristin-profile-2.jpg

634 ms

goyal-armaan-profile.jpg

goyal-armaan-profile.jpg

598 ms

benton-sans-regular.woff

benton-sans-regular.woff

231 ms

benton-sans-cond-regular.woff

benton-sans-cond-regular.woff

291 ms

benton-sans-bold.woff

benton-sans-bold.woff

357 ms

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15 ms

benton-sans-cond-bold.woff

benton-sans-cond-bold.woff

382 ms

cse.js

cse.js

265 ms

sdk.js

sdk.js

120 ms

sdk.js

sdk.js

5 ms

46 ms

cse.js

cse.js

66 ms

cse_element__en.js

cse_element__en.js

13 ms

default+en.css

default+en.css

11 ms

default.css

default.css

9 ms

async-ads.js

async-ads.js

40 ms

branding.png

branding.png

37 ms

clear.png

clear.png

27 ms

Accessibility Review

astro.indiana.edu accessibility score

99

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

Best Practices

astro.indiana.edu best practices score

75

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

High

Browser errors were logged to the console

SEO Factors

astro.indiana.edu SEO score

93

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

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 Astro.indiana.edu 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 Astro.indiana.edu 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

astro.indiana.edu

Open Graph data is detected on the main page of Astro Indiana. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: