4.9 sec in total
1.2 sec
3.6 sec
141 ms
Welcome to npg.org.uk homepage info - get ready to check Npg best content for United States right away, or after learning these important things about npg.org.uk
National Portrait Gallery, London. Open daily from 10.30. Free admission. We look after the world’s greatest collection of portraits.
Visit npg.org.ukWe analyzed Npg.org.uk page load time and found that the first response time was 1.2 sec and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
npg.org.uk performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value21.5 s
0/100
25%
Value9.4 s
12/100
10%
Value590 ms
51/100
30%
Value0.564
12/100
15%
Value11.9 s
17/100
10%
1181 ms
719 ms
406 ms
889 ms
405 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 54% of them (43 requests) were addressed to the original Npg.org.uk, 20% (16 requests) were made to Smp.adviva.net and 15% (12 requests) were made to B12.myspace.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Npg.org.uk.
Page size can be reduced by 521.1 kB (37%)
1.4 MB
887.2 kB
In fact, the total size of Npg.org.uk main page is 1.4 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. 25% of websites need less resources to load. Images take 863.9 kB which makes up the majority of the site volume.
Potential reduce by 17.8 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 3.7 kB, which is 16% 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 17.8 kB or 76% of the original size.
Potential reduce by 113.2 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, Npg needs image optimization as it can save up to 113.2 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 265.9 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 265.9 kB or 71% of the original size.
Potential reduce by 124.3 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. Npg.org.uk needs all CSS files to be minified and compressed as it can save up to 124.3 kB or 85% of the original size.
Number of requests can be reduced by 30 (48%)
62
32
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Npg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
npg.org.uk
1181 ms
main.css
719 ms
desktop.css
406 ms
mootools-1.3.2.js
889 ms
shop_ajax.js
405 ms
homeFader.js
247 ms
jquery-1.7.min.js
746 ms
presentation_jquery.js
408 ms
matchMedia.js
484 ms
matchMedia.addListener.js
485 ms
mobile.js
488 ms
urchin.js
644 ms
calendar.js
590 ms
calendar-en.js
434 ms
calendar-setup.js
516 ms
urchin.js
21 ms
mw06761.jpg
580 ms
calendar-npg.css
85 ms
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__utm.gif
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site_background.gif
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logo.gif
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logo_white_bg.gif
100 ms
print_page.gif
101 ms
right_link_arrow.png
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header_search_bg.gif
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header_search_button.png
164 ms
burgerIcon.png
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420_Vogue_banner_V2.jpg
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420_Russia_banner.jpg
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LSE_promo.jpg
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transparentPromoBG.png
246 ms
promo_shop.jpg
410 ms
promo_pfc_home1.jpg
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th_NPG4331.jpg
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56_NPG1452.jpg
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header_search_button.gif
413 ms
print_friendly.gif
456 ms
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enewsletter.gif
392 ms
blog.gif
400 ms
facebook.gif
401 ms
twitter.gif
446 ms
instagram.gif
472 ms
youtube.gif
482 ms
ga.js
11 ms
__utm.gif
11 ms
0
76 ms
0
76 ms
0
75 ms
bapi
50 ms
0
57 ms
0
56 ms
0
10 ms
bapi
25 ms
bapi
31 ms
0
10 ms
0
7 ms
0
9 ms
0
58 ms
0
9 ms
bapi
35 ms
0
8 ms
mobile.css
200 ms
print.css
83 ms
npg.org.uk accessibility score
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
npg.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
npg.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
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 Npg.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 Npg.org.uk 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.
npg.org.uk
Open Graph description is not detected on the main page of Npg. 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: