Tools & Wizards About Us
variablestarbook.com screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

variablestarbook.com

Official Variable Star Sci-Fi Book Site: New Reviews of The Lost Robert A. Heinlein and Spider Robinson Science Fiction Boo

Page Load Speed

756 ms in total

First Response

217 ms

Resources Loaded

402 ms

Page Rendered

137 ms

variablestarbook.com screenshot

About Website

Visit variablestarbook.com now to see the best up-to-date Variable Star Book content and also check out these interesting facts you probably never knew about variablestarbook.com

Buy Variable Star a new science fiction book by sci-fi authors Robert Heinlein and Spider Robinson. Read the online New York Times book review and other reviews of this scifi double feature and find o...

Visit variablestarbook.com

Key Findings

We analyzed Variablestarbook.com page load time and found that the first response time was 217 ms and then it took 539 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

variablestarbook.com performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

variablestarbook.com

217 ms

styles.css

35 ms

heinlein.jpg

70 ms

spider-robinson.jpg

71 ms

spaser.gif

68 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that all of those requests were addressed to Variablestarbook.com and no external sources were called. The less responsive or slowest element that took the longest time to load (217 ms) belongs to the original domain Variablestarbook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.3 kB (5%)

Content Size

83.6 kB

After Optimization

79.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Variablestarbook.com main page is 83.6 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. Only 10% of websites need less resources to load. Images take 76.3 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 3.9 kB

  • Original 6.1 kB
  • After minification 5.4 kB
  • After compression 2.2 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. This page needs HTML code to be minified as it can gain 680 B, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 3.9 kB or 63% of the original size.

Image Optimization

-0%

Potential reduce by 118 B

  • Original 76.3 kB
  • After minification 76.1 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. Variable Star Book images are well optimized though.

CSS Optimization

-25%

Potential reduce by 305 B

  • Original 1.2 kB
  • After minification 1.2 kB
  • After compression 919 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. Variablestarbook.com needs all CSS files to be minified and compressed as it can save up to 305 B or 25% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Variable Star Book. According to our analytics all requests are already optimized.

Network Requests Diagram

variablestarbook.com

variablestarbook.com

217 ms

styles.css

styles.css

35 ms

heinlein.jpg

heinlein.jpg

70 ms

spider-robinson.jpg

spider-robinson.jpg

71 ms

spaser.gif

spaser.gif

68 ms

bg.gif

bg.gif

68 ms

main.jpg

main.jpg

134 ms

big.jpg

big.jpg

72 ms

top_cont.gif

top_cont.gif

70 ms

tit_right.gif

tit_right.gif

70 ms

bot_bg.png

bot_bg.png

72 ms

fish.gif

fish.gif

103 ms

bg_left.jpg

bg_left.jpg

106 ms

tit_left.gif

tit_left.gif

106 ms

bot_cont.png

bot_cont.png

107 ms

Accessibility Review

variablestarbook.com accessibility score

93

Accessibility Issues

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

variablestarbook.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

SEO Factors

variablestarbook.com SEO score

75

Search Engine Optimization Advices

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 Variablestarbook.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 Variablestarbook.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

variablestarbook.com

Open Graph description is not detected on the main page of Variable Star Book. 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: