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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

acmsel.safaribooksonline.com

Safari Books Online - ACM - Home

Page Load Speed

1.3 sec in total

First Response

300 ms

Resources Loaded

869 ms

Page Rendered

139 ms

acmsel.safaribooksonline.com screenshot

About Website

Welcome to acmsel.safaribooksonline.com homepage info - get ready to check ACM Sel Safari Books Online best content for United States right away, or after learning these important things about acmsel.safaribooksonline.com

Visit acmsel.safaribooksonline.com

Key Findings

We analyzed Acmsel.safaribooksonline.com page load time and found that the first response time was 300 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

acmsel.safaribooksonline.com performance score

0

Network Requests Diagram

acmsel.safaribooksonline.com

300 ms

770112532.js

175 ms

global_1.css

257 ms

global_2.css

232 ms

notice

379 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 80% of them (32 requests) were addressed to the original Acmsel.safaribooksonline.com, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Cdn.optimizely.com. The less responsive or slowest element that took the longest time to load (438 ms) belongs to the original domain Acmsel.safaribooksonline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (72%)

Content Size

1.5 MB

After Optimization

420.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Acmsel.safaribooksonline.com main page is 1.5 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. 45% of websites need less resources to load. Javascripts take 940.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 15.6 kB

  • Original 21.6 kB
  • After minification 21.5 kB
  • After compression 6.0 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 15.6 kB or 72% of the original size.

Image Optimization

-35%

Potential reduce by 26.4 kB

  • Original 75.9 kB
  • After minification 49.6 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, ACM Sel Safari Books Online needs image optimization as it can save up to 26.4 kB or 35% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 650.2 kB

  • Original 940.9 kB
  • After minification 926.5 kB
  • After compression 290.7 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 650.2 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 377.3 kB

  • Original 451.5 kB
  • After minification 451.1 kB
  • After compression 74.3 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. Acmsel.safaribooksonline.com needs all CSS files to be minified and compressed as it can save up to 377.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (47%)

Requests Now

38

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ACM Sel Safari Books Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

acmsel.safaribooksonline.com

acmsel.safaribooksonline.com

300 ms

770112532.js

770112532.js

175 ms

global_1.css

global_1.css

257 ms

global_2.css

global_2.css

232 ms

notice

notice

379 ms

jquery.1.7.2.min.js

jquery.1.7.2.min.js

304 ms

mscorlib.js

mscorlib.js

144 ms

bvdepscript.js

bvdepscript.js

230 ms

safari.js

safari.js

314 ms

sbo.js

sbo.js

311 ms

topnav.js

topnav.js

318 ms

omnitureevents.js

omnitureevents.js

316 ms

genericchunk.js

genericchunk.js

422 ms

readxml.js

readxml.js

424 ms

jquery-ui-1.10.4.custom.min.js

jquery-ui-1.10.4.custom.min.js

430 ms

dyncats.js

dyncats.js

435 ms

aui.js

aui.js

437 ms

plugins.js

plugins.js

438 ms

icons.png

icons.png

138 ms

bullet.png

bullet.png

142 ms

logo.png

logo.png

152 ms

bg_tabBox.png

bg_tabBox.png

165 ms

tab_b2b_welcome4t.png

tab_b2b_welcome4t.png

166 ms

tab_2.png

tab_2.png

167 ms

tab_b2b_faqs4t.png

tab_b2b_faqs4t.png

169 ms

tab_b2b_browse4t.png

tab_b2b_browse4t.png

168 ms

bg_mainbox_t.png

bg_mainbox_t.png

169 ms

bg_home_botpane_tableBords.gif

bg_home_botpane_tableBords.gif

170 ms

arrow_big.gif

arrow_big.gif

185 ms

din-bold.woff

din-bold.woff

269 ms

icon_mini_books.png

icon_mini_books.png

109 ms

icon_mini_video.png

icon_mini_video.png

110 ms

icon_mini_rc.png

icon_mini_rc.png

110 ms

icon_mini_sc.png

icon_mini_sc.png

110 ms

gtm.js

gtm.js

38 ms

mixpanel-2.2.min.js

mixpanel-2.2.min.js

66 ms

brA.js

brA.js

19 ms

analytics.js

analytics.js

17 ms

collect

collect

26 ms

10 ms

SEO Factors

acmsel.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 Acmsel.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 Acmsel.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

acmsel.safaribooksonline.com

Open Graph description is not detected on the main page of ACM Sel Safari Books Online. 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: