2.6 sec in total
286 ms
2.2 sec
163 ms
Visit id-book.com now to see the best up-to-date ID Book content for India and also check out these interesting facts you probably never knew about id-book.com
Welcome to ID-book.com. This is a companion website for the book Interaction Design: beyond human-computer interaction (5th edition)
Visit id-book.comWe analyzed Id-book.com page load time and found that the first response time was 286 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
id-book.com performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value8.2 s
2/100
25%
Value6.8 s
35/100
10%
Value380 ms
69/100
30%
Value0.047
99/100
15%
Value9.4 s
31/100
10%
286 ms
296 ms
92 ms
176 ms
177 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that all of those requests were addressed to Id-book.com and no external sources were called. The less responsive or slowest element that took the longest time to load (785 ms) belongs to the original domain Id-book.com.
Page size can be reduced by 313.2 kB (27%)
1.2 MB
861.6 kB
In fact, the total size of Id-book.com main page is 1.2 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. 35% of websites need less resources to load. Images take 777.5 kB which makes up the majority of the site volume.
Potential reduce by 22.9 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 6.7 kB, which is 25% 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 22.9 kB or 86% of the original size.
Potential reduce by 18.7 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. ID Book images are well optimized though.
Potential reduce by 152.7 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 152.7 kB or 67% of the original size.
Potential reduce by 118.9 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. Id-book.com needs all CSS files to be minified and compressed as it can save up to 118.9 kB or 82% of the original size.
Number of requests can be reduced by 31 (63%)
49
18
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ID Book. 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 13 to 1 for CSS and as a result speed up the page load time.
id-book.com
286 ms
www.id-book.com
296 ms
style.css
92 ms
orange.css
176 ms
wide.css
177 ms
style.css
178 ms
jquery-1.9.1.min.js
361 ms
jquery.easing.1.3.min.js
178 ms
jquery.ui.core.js
178 ms
jquery.ui.widget.js
261 ms
jquery.ui.accordion.js
261 ms
jquery-cookie.js
262 ms
ddsmoothmenu.js
266 ms
jquery.flexslider.js
267 ms
colortip.js
347 ms
tytabs.js
348 ms
jquery.ui.totop.js
349 ms
carousel.js
354 ms
jquery.isotope.min.js
355 ms
jquery.tweet.js
435 ms
jflickrfeed.min.js
436 ms
social-options.js
436 ms
doubletaptogo.js
441 ms
jquery.fancybox.js
444 ms
jquery.sticky.js
445 ms
custom.js
523 ms
logo.png
522 ms
bookcover2a.jpg
611 ms
Rogers_Interaction_4e%20pbk05.jpg
741 ms
firstedlink.jpg
618 ms
secondeditionimage.jpg
619 ms
thirdedition.jpg
609 ms
font.css
528 ms
base.css
617 ms
font-awesome.min.css
618 ms
fontello.css
617 ms
skeleton.css
625 ms
javascript.css
627 ms
shortcodes.css
701 ms
white.css
621 ms
custom.css
622 ms
loading.gif
90 ms
slider-bg-1a.jpg
785 ms
slider-bg-2a.jpg
698 ms
right.png
90 ms
bgtransparent.png
90 ms
Roboto-Regular-webfont.woff
90 ms
Roboto-Medium-webfont.woff
89 ms
Roboto-Bold-webfont.woff
174 ms
Roboto-Condensed-webfont.woff
186 ms
fontawesome-webfont.woff
265 ms
id-book.com 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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
id-book.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
id-book.com SEO score
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Id-book.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 Id-book.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.
id-book.com
Open Graph description is not detected on the main page of ID 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: