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safaribooksonline.com screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

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    SEO

safaribooksonline.com

O'Reilly Media - Technology and Business Training

Page Load Speed

41.8 sec in total

First Response

1.4 sec

Resources Loaded

12.7 sec

Page Rendered

27.8 sec

safaribooksonline.com screenshot

About Website

Welcome to safaribooksonline.com homepage info - get ready to check Safaribooksonline best content for United States right away, or after learning these important things about safaribooksonline.com

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Key Findings

We analyzed Safaribooksonline.com page load time and found that the first response time was 1.4 sec and then it took 40.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

safaribooksonline.com performance score

0

Network Requests Diagram

www.safaribooksonline.com

1374 ms

31f081f4b215.css

121 ms

ee2203a5dc25.js

731 ms

97ce365e0ef0.js

2826 ms

deployment.js

4810 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 91% of them (31 requests) were addressed to the original Safaribooksonline.com, 3% (1 request) were made to C.la3-c1-was.salesforceliveagent.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (6.1 sec) belongs to the original domain Safaribooksonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 771.4 kB (24%)

Content Size

3.2 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Safaribooksonline.com main page is 3.2 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 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 38.9 kB

  • Original 54.1 kB
  • After minification 51.5 kB
  • After compression 15.3 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 38.9 kB or 72% of the original size.

Image Optimization

-3%

Potential reduce by 64.8 kB

  • Original 2.3 MB
  • After minification 2.2 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. Safaribooksonline images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 150.1 kB

  • Original 241.3 kB
  • After minification 241.2 kB
  • After compression 91.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 150.1 kB or 62% of the original size.

CSS Optimization

-88%

Potential reduce by 517.6 kB

  • Original 587.5 kB
  • After minification 451.2 kB
  • After compression 69.9 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. Safaribooksonline.com needs all CSS files to be minified and compressed as it can save up to 517.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (14%)

Requests Now

28

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Safaribooksonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.safaribooksonline.com

www.safaribooksonline.com

1374 ms

31f081f4b215.css

31f081f4b215.css

121 ms

ee2203a5dc25.js

ee2203a5dc25.js

731 ms

97ce365e0ef0.js

97ce365e0ef0.js

2826 ms

deployment.js

deployment.js

4810 ms

homepage-stay-ahead-background.jpg

homepage-stay-ahead-background.jpg

6117 ms

homepage-stay-current-device.png

homepage-stay-current-device.png

4515 ms

logo-client-tesla-color.svg

logo-client-tesla-color.svg

4189 ms

logo-client-google-color.svg

logo-client-google-color.svg

4260 ms

logo-client-bloomberg-color.svg

logo-client-bloomberg-color.svg

4575 ms

logo-client-sutter-health-color.svg

logo-client-sutter-health-color.svg

4261 ms

logo-client-viacom-color.svg

logo-client-viacom-color.svg

4770 ms

logo-client-allstate-color.svg

logo-client-allstate-color.svg

5127 ms

logo-client-microsoft-color.svg

logo-client-microsoft-color.svg

5045 ms

gtm.js

gtm.js

5742 ms

analytics.js

analytics.js

5744 ms

arrow.png

arrow.png

4687 ms

safari-prompt-sunshine.svg

safari-prompt-sunshine.svg

4687 ms

StagSans-Light-Web.woff

StagSans-Light-Web.woff

4847 ms

StagSans-Book-Web.woff

StagSans-Book-Web.woff

5072 ms

StagSans-Medium-Web.woff

StagSans-Medium-Web.woff

5844 ms

Stag-Light-Web.woff

Stag-Light-Web.woff

4845 ms

Stag-Book-Web.woff

Stag-Book-Web.woff

5070 ms

app-icon-search-grey.svg

app-icon-search-grey.svg

4621 ms

icon--online-white-border.svg

icon--online-white-border.svg

4681 ms

icon--map-white-border.svg

icon--map-white-border.svg

4564 ms

icon--search-white-border.svg

icon--search-white-border.svg

4904 ms

case-studies-logos-color-398x219.png

case-studies-logos-color-398x219.png

5220 ms

self-assessments-block-547x363.jpg

self-assessments-block-547x363.jpg

5018 ms

homepage-stay-current-background.jpg

homepage-stay-current-background.jpg

4941 ms

homepage-solve-problems-background.jpg

homepage-solve-problems-background.jpg

4941 ms

social-icon-twitter-grey.svg

social-icon-twitter-grey.svg

4831 ms

social-icon-facebook-grey.svg

social-icon-facebook-grey.svg

4885 ms

social-icon-linkedin-grey.svg

social-icon-linkedin-grey.svg

4886 ms

SEO Factors

safaribooksonline.com SEO score

0

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 Safaribooksonline.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 Safaribooksonline.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

safaribooksonline.com

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