Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

explosion.org.uk

Explosion Museum of Naval Firepower | National Museum of the Royal Navy

Page Load Speed

5.4 sec in total

First Response

935 ms

Resources Loaded

4.2 sec

Page Rendered

305 ms

explosion.org.uk screenshot

About Website

Welcome to explosion.org.uk homepage info - get ready to check Explosion best content right away, or after learning these important things about explosion.org.uk

Housed inside Priddy’s Hard, an 18th Century former Royal Navy armaments depot, you can marvel at missiles, torpedoes, small arms, cannons, and guns as well as the ammunition that was used inside them...

Visit explosion.org.uk

Key Findings

We analyzed Explosion.org.uk page load time and found that the first response time was 935 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

explosion.org.uk performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

explosion.org.uk

935 ms

widgetkit-d4ba198a.css

496 ms

modstyle.css

215 ms

style.css

229 ms

mootools-core.js

717 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 86% of them (42 requests) were addressed to the original Explosion.org.uk, 8% (4 requests) were made to Acint.net and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Explosion.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 735.5 kB (41%)

Content Size

1.8 MB

After Optimization

1.1 MB

In fact, the total size of Explosion.org.uk main page is 1.8 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. 20% of websites need less resources to load. Images take 852.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 21.6 kB

  • Original 27.6 kB
  • After minification 26.5 kB
  • After compression 6.1 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. 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 21.6 kB or 78% of the original size.

Image Optimization

-7%

Potential reduce by 60.7 kB

  • Original 852.1 kB
  • After minification 791.4 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. Explosion images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 539.6 kB

  • Original 777.4 kB
  • After minification 747.0 kB
  • After compression 237.8 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 539.6 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 113.6 kB

  • Original 132.8 kB
  • After minification 114.6 kB
  • After compression 19.2 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. Explosion.org.uk needs all CSS files to be minified and compressed as it can save up to 113.6 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (51%)

Requests Now

47

After Optimization

23

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Explosion. 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 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

explosion.org.uk accessibility score

83

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<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

High

Image elements do not have [alt] attributes

Best Practices

explosion.org.uk best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

explosion.org.uk SEO score

46

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Explosion.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 Explosion.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Explosion. 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: