Tools & Wizards About Us
onlineprogrammingbooks.com screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

onlineprogrammingbooks.com

Download Free Computer Books : IT, Programming and Computer Science - OnlineProgrammingBooks.com

Page Load Speed

3.1 sec in total

First Response

345 ms

Resources Loaded

2.4 sec

Page Rendered

387 ms

onlineprogrammingbooks.com screenshot

About Website

Visit onlineprogrammingbooks.com now to see the best up-to-date Online Programming Books content for Iran and also check out these interesting facts you probably never knew about onlineprogrammingbooks.com

Download Free Computer Books, Programming eBooks and IT eBooks in PDF format. Read JavaScript, C#, ASP.NET, Java, PHP, Python, Ruby, C++, etc. books online.

Visit onlineprogrammingbooks.com

Key Findings

We analyzed Onlineprogrammingbooks.com page load time and found that the first response time was 345 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

onlineprogrammingbooks.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.073

96/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

www.onlineprogrammingbooks.com

345 ms

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107 ms

M9QvL9AtSExPzUssy9SHMXSTi4sB.css

182 ms

M9bPKixNLarUMYYydHMz04sSS1L1cjPzdAz085OTSjJSc1P1czKT9LOKoYr0cvOTMnOAwnmlAA.js

243 ms

adsbygoogle.js

8 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 33% of them (23 requests) were addressed to the original Onlineprogrammingbooks.com, 14% (10 requests) were made to Apis.google.com and 7% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (447 ms) belongs to the original domain Onlineprogrammingbooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.9 kB (40%)

Content Size

474.7 kB

After Optimization

286.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onlineprogrammingbooks.com main page is 474.7 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. 65% of websites need less resources to load. Javascripts take 283.1 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 39.6 kB

  • Original 53.4 kB
  • After minification 53.4 kB
  • After compression 13.8 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 39.6 kB or 74% of the original size.

Image Optimization

-3%

Potential reduce by 3.3 kB

  • Original 115.0 kB
  • After minification 111.8 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. Online Programming Books images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 127.5 kB

  • Original 283.1 kB
  • After minification 282.7 kB
  • After compression 155.6 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 127.5 kB or 45% of the original size.

CSS Optimization

-75%

Potential reduce by 17.4 kB

  • Original 23.2 kB
  • After minification 22.9 kB
  • After compression 5.8 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. Onlineprogrammingbooks.com needs all CSS files to be minified and compressed as it can save up to 17.4 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (52%)

Requests Now

64

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Programming Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.onlineprogrammingbooks.com

www.onlineprogrammingbooks.com

345 ms

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Rc1BCoAwDAXRCxmiK89T068WaiJNRLy9igu3w4Pp2WSKFRtY3NmlAdr1f_W4KrqBLwQltSc2aqgpkGk3D6e9HkvRD_JZ8oJ4vJhGkqDZ2kYjF5V6ZPh3eanf.css

107 ms

M9QvL9AtSExPzUssy9SHMXSTi4sB.css

M9QvL9AtSExPzUssy9SHMXSTi4sB.css

182 ms

M9bPKixNLarUMYYydHMz04sSS1L1cjPzdAz085OTSjJSc1P1czKT9LOKoYr0cvOTMnOAwnmlAA.js

M9bPKixNLarUMYYydHMz04sSS1L1cjPzdAz085OTSjJSc1P1czKT9LOKoYr0cvOTMnOAwnmlAA.js

243 ms

adsbygoogle.js

adsbygoogle.js

8 ms

brand

brand

18 ms

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M9RPzs8rSUwu0U3LL8rVNdfPzEvOKU1JLdbPAqLC0tSiSj2QjF5uZh4A.js

166 ms

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M9RPzs8rSUwu0U3LL8rVNdfPzEvOKU1JLdbPKtYvTi7KLCgpBgA.js

196 ms

wp-embed.min.js

wp-embed.min.js

195 ms

brand

brand

68 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

94 ms

FreeComputerBooks

FreeComputerBooks

35 ms

onlineprogrammingbooks-logo.gif

onlineprogrammingbooks-logo.gif

245 ms

content-background.png

content-background.png

245 ms

sidebar-tab.png

sidebar-tab.png

245 ms

deployingwindows10automatingdeployment.jpg

deployingwindows10automatingdeployment.jpg

311 ms

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310 ms

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261 ms

databaselifecyclemanagement.jpg

databaselifecyclemanagement.jpg

371 ms

pythonsuccinctly.jpg

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372 ms

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370 ms

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ios9appdevelopmentessentials.jpg

370 ms

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371 ms

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370 ms

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447 ms

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w_sitb01c.gif

447 ms

rss.png

rss.png

447 ms

ca-pub-6690961099756790.js

ca-pub-6690961099756790.js

56 ms

zrt_lookup.html

zrt_lookup.html

232 ms

show_ads_impl.js

show_ads_impl.js

232 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

274 ms

widgets.js

widgets.js

21 ms

ga.js

ga.js

260 ms

plusone.js

plusone.js

360 ms

all.js

all.js

260 ms

counter.js

counter.js

49 ms

t.php

t.php

306 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

169 ms

ads

ads

153 ms

osd.js

osd.js

58 ms

__utm.gif

__utm.gif

75 ms

ads

ads

211 ms

117 ms

xd_arbiter.php

xd_arbiter.php

71 ms

xd_arbiter.php

xd_arbiter.php

101 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

45 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

70 ms

badge

badge

179 ms

follow_button.6a78875565a912489e9aef879c881358.en.html

follow_button.6a78875565a912489e9aef879c881358.en.html

20 ms

postmessageRelay

postmessageRelay

44 ms

api.js

api.js

43 ms

core:rpc:shindig.random:shindig.sha1.js

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93 ms

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googlelogo_color_112x36dp.png

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156 ms

jot

jot

267 ms

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rs=AGLTcCMlrrSnUuJtUWsjUb_MEjnrioCipg

27 ms

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82 ms

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137 ms

s

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81 ms

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80 ms

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pJeswbKZO4XwVR0035gpgvesZW2xOQ-xsNqO47m55DA.ttf

163 ms

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179 ms

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190 ms

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19 ms

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E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

17 ms

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25 ms

Accessibility Review

onlineprogrammingbooks.com accessibility score

98

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.

Best Practices

onlineprogrammingbooks.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

onlineprogrammingbooks.com SEO score

100

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Onlineprogrammingbooks.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Onlineprogrammingbooks.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

onlineprogrammingbooks.com

Open Graph description is not detected on the main page of Online Programming Books. 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: