4.3 sec in total
559 ms
3.5 sec
331 ms
Click here to check amazing Intro Programming content for Iran. Otherwise, check out these important facts you probably never knew about introprogramming.info
Fundamentals of Programming with C#, Java, JavaScript, Python and C++ books by Svetlin Nakov and his team - official web site
Visit introprogramming.infoWe analyzed Introprogramming.info page load time and found that the first response time was 559 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
introprogramming.info performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value8.6 s
1/100
25%
Value7.9 s
23/100
10%
Value2,450 ms
5/100
30%
Value0.29
41/100
15%
Value19.8 s
2/100
10%
559 ms
191 ms
478 ms
79 ms
660 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 65% of them (33 requests) were addressed to the original Introprogramming.info, 8% (4 requests) were made to Platform.twitter.com and 8% (4 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Introprogramming.info.
Page size can be reduced by 380.8 kB (44%)
868.4 kB
487.6 kB
In fact, the total size of Introprogramming.info main page is 868.4 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. 50% of websites need less resources to load. Images take 400.5 kB which makes up the majority of the site volume.
Potential reduce by 19.3 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. This page needs HTML code to be minified as it can gain 2.9 kB, 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 19.3 kB or 72% of the original size.
Potential reduce by 59.9 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, Intro Programming needs image optimization as it can save up to 59.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 214.3 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 214.3 kB or 64% of the original size.
Potential reduce by 87.3 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. Introprogramming.info needs all CSS files to be minified and compressed as it can save up to 87.3 kB or 81% of the original size.
Number of requests can be reduced by 32 (65%)
49
17
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Intro Programming. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
www.introprogramming.info
559 ms
style.css
191 ms
kickstart.css
478 ms
jquery.min.js
79 ms
kickstart.js
660 ms
jquery.min.js
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script.js
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tfg_style.css
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esdc-dp.css
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addtoany.min.css
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jquery.js
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jquery-migrate.min.js
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esdc-ck.js
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widgets.js
10 ms
plusone.js
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core.min.js
658 ms
datepicker.min.js
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wp-embed.min.js
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kickstart-forms.css
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kickstart-menus.css
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kickstart-grid.css
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jquery.fancybox-1.3.4.css
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kickstart-slideshow.css
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prettify.css
544 ms
tiptip.css
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font-awesome.min.css
567 ms
wp-emoji-release.min.js
241 ms
a1.gif
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Intro-Csharp-Book-background-menu.gif
223 ms
intro-book-background.png
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flag_en.png
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Intro-Csharp-Book-front-cover-big_en.png
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flag_bg.png
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Intro-Java-Book-front-cover-big_bg.png
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widgets.js
41 ms
fastbutton
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footer-pattern.png
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ga.js
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like.php
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page.js
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cb=gapi.loaded_0
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button.831500944bc3eb7ea5276ccdc3f71d2e.js
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cb=gapi.loaded_1
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grlryt2bdKIyfMSOhzd1eA.woff
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tweet_button.6a78875565a912489e9aef879c881358.en.html
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introprogramming.info accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
introprogramming.info best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
introprogramming.info SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
Tap targets are not sized appropriately
BG
BG
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Introprogramming.info can be misinterpreted by Google and other search engines. Our service has detected that Bulgarian is used on the page, and it matches the claimed language. Our system also found out that Introprogramming.info 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.
introprogramming.info
Open Graph description is not detected on the main page of Intro Programming. 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: