4.2 sec in total
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3.6 sec
240 ms
Click here to check amazing Blackwell content. Otherwise, check out these important facts you probably never knew about blackwell.com
Trading since 1879, Blackwell of Oxford is the largest academic and specialist bookseller in the UK. Fast dispatch, carefully packaged, worldwide delivery.
Visit blackwell.comWe analyzed Blackwell.com page load time and found that the first response time was 325 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
blackwell.com performance score
name
value
score
weighting
Value1.4 s
97/100
10%
Value1.4 s
100/100
25%
Value1.7 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.4 s
100/100
10%
325 ms
1428 ms
121 ms
195 ms
191 ms
Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Blackwell.com, 88% (95 requests) were made to Bookshop.blackwell.co.uk and 2% (2 requests) were made to Tracker.marinsm.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Bookshop.blackwell.co.uk.
Page size can be reduced by 237.7 kB (23%)
1.0 MB
807.4 kB
In fact, the total size of Blackwell.com main page is 1.0 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 738.0 kB which makes up the majority of the site volume.
Potential reduce by 62.1 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 7.6 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 62.1 kB or 89% of the original size.
Potential reduce by 3.5 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. Blackwell images are well optimized though.
Potential reduce by 103.8 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 103.8 kB or 66% of the original size.
Potential reduce by 68.3 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. Blackwell.com needs all CSS files to be minified and compressed as it can save up to 68.3 kB or 85% of the original size.
Number of requests can be reduced by 29 (28%)
103
74
The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackwell. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
blackwell.com
325 ms
welcome.jsp
1428 ms
styles2013a.css
121 ms
buttons.css
195 ms
jquery.selectBox.css
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jquery.selectBox-custom.css
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jquery-1.10.2.min.js
295 ms
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197 ms
global.js
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tabs.js
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lightbox-2.6.min.js
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lightbox.css
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blackwellCookieWarning.js
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blackwellCookieWarning.css
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js-image-slider.css
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urchin.js
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blackwell.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
blackwell.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
blackwell.com SEO score
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackwell.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 Blackwell.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.
blackwell.com
Open Graph description is not detected on the main page of Blackwell. 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: