9.9 sec in total
148 ms
9.2 sec
503 ms
Welcome to harrisdulwichboys.org.uk homepage info - get ready to check Harris Dulwich Boys best content right away, or after learning these important things about harrisdulwichboys.org.uk
Harris Boys' Academy East Dulwich is a new purpose built 11-18 school for boys which opened in September 2009 located in East Dulwich.
Visit harrisdulwichboys.org.ukWe analyzed Harrisdulwichboys.org.uk page load time and found that the first response time was 148 ms and then it took 9.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
harrisdulwichboys.org.uk performance score
name
value
score
weighting
Value6.8 s
2/100
10%
Value18.5 s
0/100
25%
Value11.5 s
5/100
10%
Value770 ms
38/100
30%
Value0.435
21/100
15%
Value19.7 s
2/100
10%
148 ms
595 ms
273 ms
22 ms
763 ms
Our browser made a total of 70 requests to load all elements on the main page. We found that 29% of them (20 requests) were addressed to the original Harrisdulwichboys.org.uk, 27% (19 requests) were made to 0e58658be539ee7325a0-220f04f871df648cf4a4d93a111e3366.ssl.cf3.rackcdn.com and 17% (12 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (7.1 sec) relates to the external source Font.reactcdn.co.uk.
Page size can be reduced by 632.7 kB (16%)
3.9 MB
3.3 MB
In fact, the total size of Harrisdulwichboys.org.uk main page is 3.9 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. 60% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.
Potential reduce by 122.6 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 122.6 kB or 86% of the original size.
Potential reduce by 313.9 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. Harris Dulwich Boys images are well optimized though.
Potential reduce by 74.2 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 74.2 kB or 54% of the original size.
Potential reduce by 122.1 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. Harrisdulwichboys.org.uk needs all CSS files to be minified and compressed as it can save up to 122.1 kB or 87% of the original size.
Number of requests can be reduced by 11 (17%)
63
52
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Harris Dulwich Boys. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
harrisdulwichboys.org.uk
148 ms
www.harrisdulwichboys.org.uk
595 ms
bootstrap_min.css
273 ms
font-awesome.min.css
22 ms
screen_1692262031.css
763 ms
jquery.min.js
23 ms
jquery.plugin.js
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swfobject.js
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jquery.autocomplete.js
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jquery.datepicker_1.8.js
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logo.png
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side_panel_logo.png
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OpenSans-Light-webfont.svg
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OpenSans-Regular-webfont.svg
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harris_icon.svg
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palatinolight1-webfont.ttf
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OpenSans-Semibold-webfont.ttf
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OpenSans-Regular-webfont.ttf
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OpenSans-Light-webfont.ttf
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harrisdulwichboys.org.uk 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
Links do not have a discernible name
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>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
harrisdulwichboys.org.uk 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
harrisdulwichboys.org.uk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Harrisdulwichboys.org.uk 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 Harrisdulwichboys.org.uk 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.
harrisdulwichboys.org.uk
Open Graph description is not detected on the main page of Harris Dulwich Boys. 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: