570 ms in total
93 ms
310 ms
167 ms
Visit stewartcalculus.com now to see the best up-to-date Stewart Calculus content for United States and also check out these interesting facts you probably never knew about stewartcalculus.com
Access everything you need for James Stewart's Calculus from textbook supplements, to web resources and homework hints.
Visit stewartcalculus.comWe analyzed Stewartcalculus.com page load time and found that the first response time was 93 ms and then it took 477 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
stewartcalculus.com performance score
name
value
score
weighting
Value2.6 s
63/100
10%
Value4.5 s
37/100
25%
Value2.6 s
97/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value4.0 s
87/100
10%
93 ms
20 ms
48 ms
81 ms
58 ms
Our browser made a total of 29 requests to load all elements on the main page. We found that 93% of them (27 requests) were addressed to the original Stewartcalculus.com, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (101 ms) belongs to the original domain Stewartcalculus.com.
Page size can be reduced by 151.8 kB (45%)
339.6 kB
187.8 kB
In fact, the total size of Stewartcalculus.com main page is 339.6 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. 15% of websites need less resources to load. Javascripts take 170.4 kB which makes up the majority of the site volume.
Potential reduce by 6.5 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 6.5 kB or 79% of the original size.
Potential reduce by 12.0 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. Stewart Calculus images are well optimized though.
Potential reduce by 110.5 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 110.5 kB or 65% of the original size.
Potential reduce by 22.8 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. Stewartcalculus.com needs all CSS files to be minified and compressed as it can save up to 22.8 kB or 86% of the original size.
Number of requests can be reduced by 4 (14%)
28
24
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stewart Calculus. 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.
stewartcalculus.com
93 ms
style.css
20 ms
prettyPhoto.css
48 ms
jquery-1.6.1.min.js
81 ms
jquery.prettyPhoto.js
58 ms
script.js
30 ms
stewartcalculus_ga.js
47 ms
analytics.js
21 ms
inside_back.jpg
24 ms
banner_global.gif
23 ms
global_table_back.gif
29 ms
spacer.gif
29 ms
book17.jpg
23 ms
book16.jpg
24 ms
book15_cover.jpg
24 ms
book18_cover.jpg
24 ms
book13_cover.jpg
25 ms
book12_cover.jpg
27 ms
book11.jpg
35 ms
book10.jpg
35 ms
book9.jpg
37 ms
book14_cover.jpg
101 ms
book6.jpg
52 ms
book5.jpg
37 ms
book8.jpg
44 ms
book7.jpg
45 ms
book3.jpg
46 ms
book2.jpg
48 ms
collect
12 ms
stewartcalculus.com accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
stewartcalculus.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
stewartcalculus.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
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stewartcalculus.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 Stewartcalculus.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
stewartcalculus.com
Open Graph description is not detected on the main page of Stewart Calculus. 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: