Tools & Wizards About Us
friendsoftheobservatory.org screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

friendsoftheobservatory.org

Support - Griffith Observatory - Southern California’s gateway to the cosmos!

Page Load Speed

5.1 sec in total

First Response

423 ms

Resources Loaded

3.4 sec

Page Rendered

1.3 sec

friendsoftheobservatory.org screenshot

About Website

Click here to check amazing Friendsofthe Observatory content. Otherwise, check out these important facts you probably never knew about friendsoftheobservatory.org

The mission of the Griffith Observatory Foundation is to support and promote Griffith Observatory as a home for science literacy, education, and public astronomy through resource development and advoc...

Visit friendsoftheobservatory.org

Key Findings

We analyzed Friendsoftheobservatory.org page load time and found that the first response time was 423 ms and then it took 4.7 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

friendsoftheobservatory.org performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value14.5 s

0/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.15

76/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

Network Requests Diagram

friendsoftheobservatory.org

423 ms

friendsoftheobservatory.org

201 ms

112 ms

gtm.js

88 ms

tribe-events-pro-mini-calendar-block.min.css

264 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Friendsoftheobservatory.org, 72% (41 requests) were made to Griffithobservatory.org and 7% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Griffithobservatory.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 270.4 kB (6%)

Content Size

4.5 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Friendsoftheobservatory.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. 55% of websites need less resources to load. Images take 4.3 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 84.7 kB

  • Original 108.1 kB
  • After minification 102.5 kB
  • After compression 23.4 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 84.7 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 185.7 kB

  • Original 4.3 MB
  • After minification 4.1 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. Friendsofthe Observatory images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 17 B

  • Original 56.0 kB
  • After minification 56.0 kB
  • After compression 55.9 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

-0%

Potential reduce by 0 B

  • Original 5 B

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.

Requests Breakdown

Number of requests can be reduced by 28 (58%)

Requests Now

48

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Friendsofthe Observatory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

friendsoftheobservatory.org

friendsoftheobservatory.org

423 ms

friendsoftheobservatory.org

friendsoftheobservatory.org

201 ms

112 ms

gtm.js

gtm.js

88 ms

tribe-events-pro-mini-calendar-block.min.css

tribe-events-pro-mini-calendar-block.min.css

264 ms

sbi-styles.min.css

sbi-styles.min.css

350 ms

style.min.css

style.min.css

343 ms

style.css

style.css

357 ms

generic-no-float.min.css

generic-no-float.min.css

276 ms

tablepress-combined.min.css

tablepress-combined.min.css

282 ms

tablepress-responsive.min.css

tablepress-responsive.min.css

522 ms

jquery.min.js

jquery.min.js

54 ms

polyfill.min.js

polyfill.min.js

738 ms

header.js

header.js

575 ms

js

js

106 ms

tribe-events-pro.css

tribe-events-pro.css

585 ms

variables-skeleton.min.css

variables-skeleton.min.css

602 ms

common-skeleton.min.css

common-skeleton.min.css

589 ms

widget-events-list-skeleton.min.css

widget-events-list-skeleton.min.css

593 ms

widgets-events-common-skeleton.min.css

widgets-events-common-skeleton.min.css

874 ms

widget-events-list-skeleton.min.css

widget-events-list-skeleton.min.css

876 ms

footer.js

footer.js

875 ms

tribe-common.min.js

tribe-common.min.js

874 ms

query-string.min.js

query-string.min.js

1023 ms

underscore-before.js

underscore-before.js

875 ms

underscore.min.js

underscore.min.js

1023 ms

underscore-after.js

underscore-after.js

1087 ms

manager.min.js

manager.min.js

1088 ms

breakpoints.min.js

breakpoints.min.js

1127 ms

5.1.0

5.1.0

64 ms

yyt0kia.css

yyt0kia.css

32 ms

css2

css2

43 ms

p.css

p.css

28 ms

sbi-sprite.png

sbi-sprite.png

371 ms

logo_griffith.svg

logo_griffith.svg

490 ms

Foundation_Hero_Day_v02_noCautionTape-1600x800.jpg

Foundation_Hero_Day_v02_noCautionTape-1600x800.jpg

698 ms

Foundation_Hero_Night_v02_noCautionTape-1600x800.jpg

Foundation_Hero_Night_v02_noCautionTape-1600x800.jpg

843 ms

levi-jones-n0CTq0rroso-unsplash-1000x750.jpg

levi-jones-n0CTq0rroso-unsplash-1000x750.jpg

693 ms

DSC05722-1000x750.jpg

DSC05722-1000x750.jpg

806 ms

jonathan-nguyen-xaQW2TkPJBU-unsplash-scaled-1000x750-1653597736.jpg

jonathan-nguyen-xaQW2TkPJBU-unsplash-scaled-1000x750-1653597736.jpg

771 ms

accent_hori.png

accent_hori.png

726 ms

accent_hori--white.png

accent_hori--white.png

1116 ms

IMG_7802-scaled-1200x1200.jpg

IMG_7802-scaled-1200x1200.jpg

1146 ms

fifthgrade-scaled-1600x800.jpg

fifthgrade-scaled-1600x800.jpg

1155 ms

accent_vert.png

accent_vert.png

1329 ms

accent_vert--white.png

accent_vert--white.png

1366 ms

sol_marketing_sat_010_v001-1200x800.png

sol_marketing_sat_010_v001-1200x800.png

1088 ms

IMG_4919-1200x900.jpeg

IMG_4919-1200x900.jpeg

1507 ms

DSC03211-1600x1068.jpg

DSC03211-1600x1068.jpg

1477 ms

cameron-venti-c5GkEd-j5vI-unsplash_noCautionTape-1200x890.jpg

cameron-venti-c5GkEd-j5vI-unsplash_noCautionTape-1200x890.jpg

1626 ms

logo_la.png

logo_la.png

1859 ms

d

d

77 ms

d

d

77 ms

zYXgKVElMYYaJe8bpLHnCwDKtdY.ttf

zYXgKVElMYYaJe8bpLHnCwDKtdY.ttf

204 ms

zYX9KVElMYYaJe8bpLHnCwDKjWr7MIY.ttf

zYX9KVElMYYaJe8bpLHnCwDKjWr7MIY.ttf

212 ms

zYX7KVElMYYaJe8bpLHnCwDKhdTmrINscQ.ttf

zYX7KVElMYYaJe8bpLHnCwDKhdTmrINscQ.ttf

173 ms

zYX-KVElMYYaJe8bpLHnCwDKhdTeEA.ttf

zYX-KVElMYYaJe8bpLHnCwDKhdTeEA.ttf

172 ms

Accessibility Review

friendsoftheobservatory.org accessibility score

69

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

friendsoftheobservatory.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

High

Page has valid source maps

SEO Factors

friendsoftheobservatory.org SEO score

84

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Friendsoftheobservatory.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Friendsoftheobservatory.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

friendsoftheobservatory.org

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