Tools & Wizards About Us
astronomy101.com screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

astronomy101.com

ASTRONOMY101 Astronomy Mega Site News Supplies Optics, More

Page Load Speed

707 ms in total

First Response

148 ms

Resources Loaded

391 ms

Page Rendered

168 ms

astronomy101.com screenshot

About Website

Click here to check amazing ASTRONOMY101 content. Otherwise, check out these important facts you probably never knew about astronomy101.com

ASTRONOMY 101 Mega Site to astronomy news, space, pics, telescope, supplies, events, sites, meteor,titan,nasa,sedna,hubble

Visit astronomy101.com

Key Findings

We analyzed Astronomy101.com page load time and found that the first response time was 148 ms and then it took 559 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

astronomy101.com performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.134

80/100

15%

TTI (Time to Interactive)

Value5.3 s

72/100

10%

Network Requests Diagram

astronomy101.com

148 ms

adsbygoogle.js

148 ms

adsbygoogle.js

45 ms

show_ads.js

148 ms

Logo_25gry.gif

14 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 59% of them (10 requests) were addressed to the original Astronomy101.com, 18% (3 requests) were made to Pagead2.googlesyndication.com and 18% (3 requests) were made to Service.bfast.com. The less responsive or slowest element that took the longest time to load (179 ms) belongs to the original domain Astronomy101.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 52.4 kB (21%)

Content Size

245.9 kB

After Optimization

193.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Astronomy101.com main page is 245.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 146.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 45.2 kB

  • Original 55.2 kB
  • After minification 55.1 kB
  • After compression 10.0 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 45.2 kB or 82% of the original size.

Image Optimization

-16%

Potential reduce by 7.0 kB

  • Original 44.6 kB
  • After minification 37.6 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. Obviously, ASTRONOMY101 needs image optimization as it can save up to 7.0 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 75 B

  • Original 146.1 kB
  • After minification 146.1 kB
  • After compression 146.0 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.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ASTRONOMY101. According to our analytics all requests are already optimized.

Network Requests Diagram

astronomy101.com

astronomy101.com

148 ms

adsbygoogle.js

adsbygoogle.js

148 ms

adsbygoogle.js

adsbygoogle.js

45 ms

show_ads.js

show_ads.js

148 ms

Logo_25gry.gif

Logo_25gry.gif

14 ms

serve

serve

36 ms

astronomy1j.jpg

astronomy1j.jpg

32 ms

new_y.gif

new_y.gif

142 ms

button136.gif

button136.gif

143 ms

101_world_pinwheel_galaxy_digital_image_small.jpg

101_world_pinwheel_galaxy_digital_image_small.jpg

143 ms

astronomy_pic_potd_space_exploration_nasa_mission_mars.jpg

astronomy_pic_potd_space_exploration_nasa_mission_mars.jpg

179 ms

MCj03099480000[1].gif

MCj03099480000[1].gif

145 ms

MPj01827720000[1].jpg

MPj01827720000[1].jpg

143 ms

serve

serve

34 ms

serve

serve

34 ms

MPj01827720000[1].jpg

MPj01827720000[1].jpg

27 ms

button135.gif

button135.gif

27 ms

Accessibility Review

astronomy101.com accessibility score

66

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

astronomy101.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

astronomy101.com SEO score

62

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

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 Astronomy101.com 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 Astronomy101.com 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

astronomy101.com

Open Graph description is not detected on the main page of ASTRONOMY101. 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: